/*
 * ESPectre - Website styles
 *
 * Single source of truth for the site palette and components.
 *
 * Author: Francesco Pace <francesco.pace@gmail.com>
 * SPDX-License-Identifier: GPL-3.0-only
 * Commercial licensing available under separate agreement; see LICENSING.md.
 */

:root {
  --header-height: 64px;
  --bg: #fafbfc;
  --surface: #ffffff;
  --surface2: #f2f4f7;
  --text: #15181e;
  --dim: #5f6673;
  --border: #e6e9ee;
  --accent: oklch(0.55 0.2 264);
  --accent-soft: oklch(0.55 0.2 264 / 0.09);
  --accent-line: oklch(0.55 0.2 264 / 0.35);
  --on-accent: #ffffff;
  --ok: #1fae68;
  --ok-soft: rgba(31, 174, 104, .12);
  --danger: #d5484f;
  --shadow: 0 1px 2px rgba(16, 20, 28, .05), 0 8px 24px rgba(16, 20, 28, .06);
  --media-bg: #050608;
  --media-bg-raised: #08090b;
  --media-text: #ffffff;
  --media-panel: rgba(4, 6, 9, .72);
  --media-line: rgba(255, 255, 255, .22);
  --media-shadow: 0 18px 60px rgba(0, 0, 0, .28);
  --scene-motion: #78eca7;
  --scene-alarm: #ff676d;
  --scene-heating: #73b8ff;
  --scene-cooling: #62d7e8;
  --scene-presence: #f2c46d;
  --scene-industrial: #d1b06c;
  --scene-school: #8bd7ff;
  --scene-privacy: #73b8ff;
  --scene-gym: #ff8fc2;
  --scene-embedded: #ff9f66;
  --scene-integration: #a68cff;
  --scene-cloud: #6fe0c0;
  --scene-standards: #67cdf5;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
}

body {
  display: flex;
  flex-direction: column;
  color: var(--text);
  font-family: 'Instrument Sans', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  min-height: 100dvh;
}

body > main {
  width: 100%;
  box-sizing: border-box;
  flex: 1 0 auto;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
input::placeholder { color: var(--dim); opacity: .6; }
:where(a, button, input, select, textarea, summary) { touch-action: manipulation; }

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 72%, white);
  outline-offset: 3px;
}

/* Layout rules below set display on components that also toggle [hidden]. */
[hidden] { display: none !important; }

h1, h2, h3 { font-family: 'Space Grotesk', sans-serif; }
.mono { font-family: 'JetBrains Mono', monospace; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  top: 10px;
  left: 12px;
  z-index: 1000;
  padding: 9px 13px;
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

@keyframes espPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .45; transform: scale(.78); }
}
@keyframes espSpin { to { transform: rotate(360deg); } }
@keyframes espFieldErrorBlink {
  from { border-color: var(--danger); box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 20%, transparent); }
  to { border-color: var(--border); box-shadow: none; }
}
/* ---------------------------------------------------------- shared bits */

.dot { width: 7px; height: 7px; border-radius: 99px; display: inline-block; flex: none; }
.dot-idle { background: var(--dim); opacity: .5; }
.dot-ok { background: var(--ok); }
.dot-error { background: var(--danger); }
.pulse { animation: espPulse 1.6s ease-in-out infinite; }

.spinner {
  width: 11px; height: 11px; flex: none;
  border: 2px solid var(--accent-line);
  border-top-color: var(--accent);
  border-radius: 99px;
  animation: espSpin .7s linear infinite;
}

.meter {
  height: 6px;
  border-radius: 99px;
  background: var(--surface2);
  overflow: hidden;
  position: relative;
}
.meter > span, .mini-meter > span {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: var(--accent);
  width: 6%;
  transition: width .25s linear;
}
.meter-lg { height: 10px; border: 1px solid var(--border); }

.energy-head {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--dim);
  margin-bottom: 6px;
}
.energy-title { text-transform: uppercase; letter-spacing: .06em; }
.js-motion-label { color: var(--dim); }
.js-motion-label.motion { color: var(--accent); }

.mono-sub { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--dim); }

.stat { background: var(--surface2); border-radius: 9px; padding: 9px 12px; }
.stat-label {
  font-size: 10.5px;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: .06em;
}
.stat-value { font-family: 'JetBrains Mono', monospace; font-size: 13px; }
.stat-value.ok { color: var(--ok); }

:is(.btn-primary, .btn-secondary, .btn-ghost, .btn-danger, .btn-danger-ghost) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  padding: 10px 23px;
  border: 1px solid transparent;
  border-radius: 10px;
  font: inherit;
  font-size: 14.5px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: color .15s ease, background .15s ease, border-color .15s ease, filter .15s ease;
}
:is(.btn-primary, .btn-secondary, .btn-ghost, .btn-danger, .btn-danger-ghost):hover { text-decoration: none; }
.btn-primary { border-color: var(--accent); background: var(--accent); color: var(--on-accent); }
.btn-secondary { border-color: var(--border); background: var(--surface); color: var(--dim); }
.btn-ghost { border-color: transparent; background: transparent; color: var(--dim); }
.btn-secondary:hover,
.btn-ghost:hover { color: var(--text); }
.btn-ghost:hover { background: var(--surface2); }
.btn-danger,
.btn-danger-ghost { border-color: color-mix(in srgb, var(--danger) 48%, var(--border)); color: var(--danger); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger-ghost { background: transparent; }
.btn-danger:hover { filter: brightness(1.06); }
.btn-danger-ghost:hover { background: color-mix(in srgb, var(--danger) 7%, transparent); }
.btn-sm { padding: 7px 14px; border-radius: 9px; font-size: 13px; }
:is(.btn-primary, .btn-secondary, .btn-ghost, .btn-danger, .btn-danger-ghost):disabled {
  opacity: .45;
  cursor: not-allowed;
  filter: none;
}
button:disabled { cursor: not-allowed; }

.chip {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--surface2);
  color: var(--dim);
  white-space: nowrap;
}
.chip.ready { background: var(--ok-soft); color: var(--ok); }
.chip.unavailable { background: color-mix(in srgb, var(--danger) 9%, var(--surface2)); color: var(--danger); }

/* ---------------------------------------------------------- header */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 200;
  background: color-mix(in srgb, var(--media-bg) 92%, transparent);
  backdrop-filter: blur(14px) saturate(1.08);
  -webkit-backdrop-filter: blur(14px) saturate(1.08);
  border-bottom: 1px solid color-mix(in srgb, var(--media-text) 12%, transparent);
  box-shadow: 0 12px 36px rgba(0, 0, 0, .18);
  color: var(--media-text);
}
.site-header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 40px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--text);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -.01em;
}
.brand img,
.footer-brand img {
  display: block;
  flex: none;
}
.brand:hover { text-decoration: none; }
.main-nav { display: flex; gap: 4px; flex: 1; }
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  min-height: 42px;
  border: 1px solid color-mix(in srgb, var(--media-text) 26%, transparent);
  border-radius: 10px;
  background: transparent;
  color: var(--media-text);
  font: inherit;
  font-size: 20px;
  cursor: pointer;
}
.nav-link {
  padding: 6px 11px;
  border-radius: 7px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--dim);
}
.nav-link:hover { background: var(--surface2); text-decoration: none; }
.nav-link.active { color: var(--text); }
.site-header .brand,
.site-header .nav-link,
.site-header .conn-pill {
  color: var(--media-text);
}
.site-header .nav-link {
  color: color-mix(in srgb, var(--media-text) 70%, transparent);
}
.site-header .nav-link:hover,
.site-header .nav-link.active {
  color: var(--media-text);
  background: color-mix(in srgb, var(--media-text) 10%, transparent);
}
.site-header .conn-pill {
  border-color: color-mix(in srgb, var(--media-text) 26%, transparent);
  background: color-mix(in srgb, var(--media-bg-raised) 36%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.site-header button.conn-pill:hover {
  border-color: color-mix(in srgb, var(--media-text) 68%, transparent);
}
.site-header .mini-meter {
  background: color-mix(in srgb, var(--media-text) 20%, transparent);
}

.conn { position: relative; }
.conn-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 99px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
}
button.conn-pill { cursor: pointer; }
button.conn-pill:hover { border-color: var(--accent-line); }
.conn-connecting { border-color: var(--accent-line); background: var(--accent-soft); }
.conn-connected { gap: 9px; padding: 7px 12px 7px 14px; }
.mini-meter {
  width: 44px; height: 4px;
  border-radius: 99px;
  background: var(--surface2);
  overflow: hidden;
  display: inline-block;
}
.caret { color: var(--dim); font-size: 10px; }

.conn-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  width: 300px;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 16px;
  z-index: 400;
}
.conn-dropdown-head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.conn-dropdown-head .dot { width: 9px; height: 9px; }
.conn-dropdown-name { font-weight: 600; font-size: 14px; color: var(--text); }
.conn-dropdown-meta {
  display: grid;
  gap: 10px;
  margin: 0 0 14px;
}
.conn-dropdown-note {
  margin: 0 0 14px;
  color: var(--dim);
  font-size: 12px;
  line-height: 1.45;
}
.conn-dropdown-meta > div { display: grid; gap: 2px; min-width: 0; }
.conn-dropdown-meta dt {
  font-size: 10px;
  font-weight: 650;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--dim);
}
.conn-dropdown-meta dd {
  margin: 0;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  overflow-wrap: anywhere;
}
.conn-firmware-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.conn-firmware-row .js-menu-firmware { min-width: 0; }
.energy-block { margin-bottom: 14px; }
.energy-block .mono { font-size: 11px; }
.btn-disconnect {
  width: 100%;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: transparent;
  color: var(--dim);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.btn-disconnect:hover { color: var(--danger); border-color: var(--danger); }

/* ---------------------------------------------------------- home */

.scrolly-hero {
  overflow: hidden;
  isolation: isolate;
  background: var(--media-bg-raised);
  color: var(--media-text);
}
.hero-media,
.hero-scrim {
  position: absolute;
  inset: 0;
}
.hero-media {
  z-index: 0;
  background: var(--media-bg-raised) url("/assets/images/home/hero-esp32-poster.jpg") center / cover no-repeat;
}
.hero-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  filter: saturate(.88) contrast(1.04);
}
.hero-frame-connected {
  opacity: 0;
  transition: opacity .7s ease;
}
.hero-media.is-connected .hero-frame-connected { opacity: 1; }
.hero-scrim {
  z-index: 1;
  background:
    linear-gradient(90deg,
      color-mix(in srgb, var(--media-bg) 93%, transparent) 0%,
      color-mix(in srgb, var(--media-bg) 72%, transparent) 37%,
      color-mix(in srgb, var(--media-bg) 20%, transparent) 70%,
      color-mix(in srgb, var(--media-bg) 36%, transparent) 100%),
    linear-gradient(0deg,
      color-mix(in srgb, var(--media-bg) 88%, transparent) 0%,
      transparent 42%,
      color-mix(in srgb, var(--media-bg) 26%, transparent) 100%);
}
.hero-content {
  width: min(1280px, 100%);
  box-sizing: border-box;
  margin: 0 auto;
  padding: 150px 40px 44px;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 13px;
  border: 1px solid color-mix(in srgb, var(--media-text) 28%, transparent);
  border-radius: 8px;
  background: color-mix(in srgb, var(--media-bg-raised) 45%, transparent);
  font-size: 12.5px;
  font-weight: 500;
  color: color-mix(in srgb, var(--media-text) 74%, transparent);
  margin-bottom: 18px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.hero-badge .dot { width: 6px; height: 6px; }
a.hero-badge:hover {
  text-decoration: none;
  color: var(--media-text);
  border-color: color-mix(in srgb, var(--media-text) 70%, transparent);
}
.hero-eyebrow {
  margin-bottom: 12px;
  color: color-mix(in srgb, var(--media-text) 78%, transparent);
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(12px, 1.4vw, 16px);
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.hero-content h1 {
  max-width: 900px;
  font-size: clamp(52px, 7.2vw, 92px);
  line-height: .94;
  letter-spacing: -.055em;
  font-weight: 600;
  margin: 0 0 24px;
  text-wrap: balance;
  text-shadow: 0 2px 30px rgba(0, 0, 0, .35);
}
.hero-sub {
  max-width: 620px;
  margin: 0;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.4;
  color: color-mix(in srgb, var(--media-text) 82%, transparent);
  text-wrap: pretty;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  box-sizing: border-box;
  padding: 10px 20px;
  border: 1px solid var(--media-line);
  border-radius: 10px;
  color: var(--media-text);
  font: inherit;
  font-size: 14.5px;
  font-weight: 600;
  transition: color .15s ease, background .15s ease, border-color .15s ease, filter .15s ease;
}
.hero-cta:hover { text-decoration: none; }
.hero-cta-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--on-accent);
}
.btn-primary:hover,
.hero-cta-primary:hover { filter: brightness(1.08); }
.hero-cta-secondary {
  border-color: color-mix(in srgb, var(--media-text) 42%, transparent);
  background: color-mix(in srgb, var(--media-bg-raised) 38%, transparent);
}
.hero-cta-secondary:hover {
  border-color: color-mix(in srgb, var(--media-text) 70%, transparent);
  background: color-mix(in srgb, var(--media-text) 10%, transparent);
}
.hero-proof {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  color: color-mix(in srgb, var(--media-text) 56%, transparent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.hero-proof span:not(:last-child)::after {
  content: "·";
  margin-left: 24px;
  color: color-mix(in srgb, var(--media-text) 30%, transparent);
}

/* Scroll narrative */

.scrolly {
  height: 540svh;
  position: relative;
  background: var(--media-bg);
  color: var(--media-text);
}
.scrolly-stage {
  position: sticky;
  top: 0;
  height: 100svh;
  overflow: hidden;
  isolation: isolate;
}
.scrolly-scenes,
.scrolly-scene,
.scrolly-scrim {
  position: absolute;
  inset: 0;
}
.scrolly-scene {
  z-index: -3;
  margin: 0;
  opacity: 0;
  transform: scale(1.025);
  transition: opacity .65s ease, transform 1.2s ease;
}
.scrolly-scene.is-active {
  opacity: 1;
  transform: scale(1);
}
.scrolly-scene img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
}
.scrolly-scrim {
  z-index: -2;
  background:
    linear-gradient(90deg,
      color-mix(in srgb, var(--media-bg) 93%, transparent) 0%,
      color-mix(in srgb, var(--media-bg) 70%, transparent) 35%,
      color-mix(in srgb, var(--media-bg) 10%, transparent) 72%,
      color-mix(in srgb, var(--media-bg) 32%, transparent) 100%),
    linear-gradient(0deg,
      color-mix(in srgb, var(--media-bg) 70%, transparent) 0%,
      transparent 48%,
      color-mix(in srgb, var(--media-bg) 20%, transparent) 100%);
  opacity: 1;
  transition: opacity .45s ease;
}
.scrolly-stage.is-intro .scrolly-scrim { opacity: 0; }
.scrolly-inner {
  width: min(1280px, 100%);
  height: 100%;
  box-sizing: border-box;
  margin: 0 auto;
  padding: 44px 40px 54px;
  position: relative;
}
.scrolly-progress {
  position: absolute;
  top: calc(var(--header-height) + 24px);
  right: 40px;
  display: flex;
  gap: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: .08em;
  color: color-mix(in srgb, var(--media-text) 48%, transparent);
  opacity: 1;
  transition: opacity .3s ease;
}
.scrolly-stage.is-intro .scrolly-progress { opacity: 0; }
.scrolly-progress .js-scrolly-current {
  color: var(--media-text);
  font-weight: 600;
}
.scrolly-caption {
  --scene-color: var(--scene-motion);
  position: absolute;
  left: 40px;
  bottom: 62px;
  width: min(600px, calc(100vw - 80px));
  opacity: 0;
  transform: translateY(18px);
  pointer-events: none;
  transition: opacity .45s ease, transform .45s ease;
}
.scrolly-caption.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.scrolly-caption.scrolly-hero-content {
  left: 0;
  bottom: 0;
  width: 100%;
  max-width: none;
  padding: 150px 40px 44px;
}
.scrolly-caption[data-scene="1"] { --scene-color: var(--scene-privacy); }
.scrolly-caption[data-scene="2"] { --scene-color: var(--scene-motion); }
.scrolly-caption[data-scene="3"] { --scene-color: var(--scene-alarm); }
.scrolly-caption[data-scene="4"] { --scene-color: var(--scene-integration); }
.scrolly-caption[data-scene="5"] { --scene-color: var(--scene-embedded); }
.scrolly-kicker {
  margin-bottom: 13px;
  color: var(--scene-color);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.scrolly-caption h2 {
  max-width: 680px;
  margin: 0 0 18px;
  font-size: clamp(44px, 6vw, 78px);
  line-height: .96;
  letter-spacing: -.05em;
  font-weight: 600;
  text-shadow: 0 2px 30px rgba(0, 0, 0, .35);
}
.scrolly-caption > p {
  margin: 0 0 28px;
  color: color-mix(in srgb, var(--media-text) 76%, transparent);
  font-size: 17px;
  line-height: 1.5;
  text-wrap: pretty;
}
.scene-roadmap-link {
  color: var(--media-text);
  white-space: nowrap;
}
.scene-ui {
  width: min(390px, 100%);
  box-sizing: border-box;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 13px 15px;
  border: 1px solid color-mix(in srgb, var(--scene-color) 38%, var(--media-line));
  border-radius: 12px;
  background: var(--media-panel);
  box-shadow: var(--media-shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.scene-ui-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--scene-color);
  box-shadow: 0 0 18px color-mix(in srgb, var(--scene-color) 80%, transparent);
  animation: espPulse 1.4s ease-in-out infinite;
}
.scene-ui small,
.scene-ui strong {
  display: block;
}
.scene-ui small {
  margin-bottom: 1px;
  color: color-mix(in srgb, var(--media-text) 46%, transparent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.scene-ui strong {
  font-size: 13px;
  font-weight: 600;
}
.scene-ui-action {
  color: var(--scene-color);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  white-space: nowrap;
}
.scene-integrations {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: -12px 0 14px;
}
.scene-integrations span {
  padding: 6px 9px;
  border: 1px solid color-mix(in srgb, var(--scene-integration) 42%, transparent);
  border-radius: 8px;
  background: var(--media-panel);
  color: color-mix(in srgb, var(--media-text) 82%, transparent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: .05em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.scrolly-nav {
  position: absolute;
  right: 40px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 10px;
  opacity: 1;
  transition: opacity .3s ease;
}
.scrolly-stage.is-intro .scrolly-nav { opacity: 0; }
.scrolly-nav span {
  width: 3px;
  height: 24px;
  background: color-mix(in srgb, var(--media-text) 22%, transparent);
  transition: height .3s ease, background .3s ease;
}
.scrolly-nav span.is-active {
  height: 44px;
  background: var(--media-text);
}
.scrolly-cue,
.scrolly-skip {
  position: absolute;
  right: 40px;
  bottom: 42px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: color-mix(in srgb, var(--media-text) 72%, transparent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
  transition: color .2s ease, opacity .3s ease, visibility .3s ease;
}
.scrolly-cue { opacity: 0; }
.scrolly-stage.is-intro .scrolly-cue { opacity: 1; }
.scrolly-skip:hover { color: var(--media-text); text-decoration: none; }
.scrolly-skip::before {
  content: '';
  position: absolute;
  inset: -16px -10px;
}
.scrolly-stage.is-intro .scrolly-skip {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}
.scrolly-cue span,
.scrolly-skip span { color: var(--media-text); }

.home-kicker {
  display: block;
  margin-bottom: 9px;
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.home-action-hub {
  min-height: 100svh;
  border-top: 1px solid var(--accent-line);
  background:
    radial-gradient(circle at 12% 30%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 36%),
    linear-gradient(135deg, var(--surface) 0%, var(--bg) 68%);
}
.home-action-inner {
  box-sizing: border-box;
  width: 100%;
  max-width: 1280px;
  min-height: 100svh;
  margin: 0 auto;
  padding: calc(var(--header-height) + 64px) 40px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 24px;
}
.home-action-head :is(.page-sub) { max-width: 720px; margin-bottom: 0; }
.home-tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.home-tool-card {
  display: flex;
  min-height: 176px;
  padding: 22px;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 18px;
  color: var(--text);
  background: var(--surface);
}
.home-tool-card:hover { border-color: var(--accent-line); color: var(--text); text-decoration: none; }
.home-tool-card-primary { border-color: var(--accent-line); background: var(--accent-soft); }
.home-card-label {
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
}
.home-tool-card h3 { margin: 14px 0 6px; font-size: 25px; letter-spacing: -.025em; }
.home-tool-card p { max-width: 420px; margin: 0; color: var(--dim); font-size: 13.5px; text-wrap: pretty; }
.home-card-action { margin-top: auto; padding-top: 18px; color: var(--accent); font-size: 13px; font-weight: 600; }
.home-action-group { min-width: 0; }
.home-action-group > .home-kicker { margin: 0 0 9px; }
.home-resource-strip {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}
.home-resource-links { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); }
.home-resource-links a { display: flex; padding: 20px 22px; flex-direction: column; gap: 5px; color: var(--text); }
.home-resource-links a + a { border-left: 1px solid var(--border); }
.home-resource-links a:hover { color: var(--accent); background: var(--surface2); text-decoration: none; }
.home-resource-links strong { font-family: 'Space Grotesk', sans-serif; font-size: 17px; }
.home-resource-links span { color: var(--dim); font-size: 12px; }
.home-license-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  padding: 22px 24px;
  border: 1px solid var(--accent-line);
  border-radius: 18px;
  background: var(--surface);
}
.home-license-cta h3 { margin: 0 0 4px; font-size: 25px; letter-spacing: -.025em; }
.home-license-cta p { margin: 0; color: var(--dim); font-size: 13.5px; }
.home-license-cta > a { flex: none; }

/* ---------------------------------------------------------- inner pages */

.page-narrow {
  max-width: 1120px;
  margin: 0 auto;
  padding: calc(var(--header-height) + 64px) 24px 80px;
}
.error-hero { min-width: 0; }
.error-hero .guide-tag { display: block; margin-bottom: 12px; }
.error-logo {
  display: grid;
  width: 132px;
  height: 132px;
  margin: 0 auto;
  place-items: center;
}
.error-logo img { display: block; width: 112px; height: 112px; }
.error-page > .home-action-group { margin-top: 36px; }
.error-page .home-license-cta h2 { margin: 0 0 4px; font-size: 25px; letter-spacing: -.025em; }
.error-page .home-license-cta p { margin: 0; color: var(--dim); font-size: 13.5px; }
.page-title { font-size: 40px; letter-spacing: -.02em; margin: 0 0 8px; }
.page-sub { margin: 0 0 40px; color: var(--dim); font-size: 18px; line-height: 1.55; text-wrap: pretty; }
.page-sub-callout {
  margin: -28px 0 32px;
  font-size: 17px;
  line-height: 1.45;
  font-weight: 650;
  color: var(--text);
  text-wrap: pretty;
}
.page-sub-callout.is-error { color: var(--danger); }

.contact-team-media {
  aspect-ratio: 16 / 9;
  margin: 0 0 56px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--media-bg);
}
.contact-team-media picture,
.contact-team-media img {
  display: block;
  width: 100%;
  height: 100%;
}
.contact-team-media img {
  object-fit: cover;
  object-position: center;
  filter: saturate(.9) contrast(1.02);
}

/* Tools */

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 18px;
}
.tool-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  color: var(--text);
}
.tool-card:hover { border-color: var(--accent-line); text-decoration: none; }
.tool-card-link { cursor: pointer; }
.tool-card-media {
  display: grid;
  height: 138px;
  overflow: hidden;
  place-items: center;
  background: #0a0d12;
}
.tool-card-media > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.tool-card-body {
  min-height: 150px;
  padding: 20px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.tool-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.tool-head h2 { font-size: 18px; margin: 0; }
.tool-card p { margin: 0; font-size: 13.5px; color: var(--dim); flex: 1; }
.tool-open { font-size: 13.5px; font-weight: 600; color: var(--accent); }
/* Configure */

.breadcrumb { font-size: 13px; color: var(--dim); margin-bottom: 18px; }
.breadcrumb a { color: var(--dim); }
.crumb-sep { opacity: .5; }
.crumb-here { color: var(--text); font-weight: 500; }

.empty-state {
  max-width: 480px;
  margin: 60px auto;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 48px 36px;
  box-shadow: var(--shadow);
}
.empty-ghost { opacity: .35; margin-bottom: 16px; }
.empty-state h2 { font-size: 22px; margin: 0 0 8px; }
.empty-state p { margin: 0 0 24px; font-size: 14px; color: var(--dim); text-wrap: pretty; }
.live-connect-actions { justify-content: center; margin-top: 0; }
.device-connect-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.device-connect-card-actions { margin-top: auto; }
.device-connect-card-actions button, .device-connect-card .panel-actions button { width: 100%; }
espectre-direct-connect:not([hidden]) { display: contents; }
.connection-card { width: min(100%, 572px); max-width: 572px; box-sizing: border-box; text-align: left; }
.connection-card > h2,
.connection-card > p:first-of-type,
.connection-card-eyebrow { text-align: center; }
.connection-card-eyebrow {
  display: block;
  margin-bottom: 7px;
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 650;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.connection-card > .btn-primary { width: 100%; margin-top: 18px; }
.connection-card .tool-note { text-align: center; }
.connection-card > .empty-alt { text-align: center; }
.direct-connect-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0 16px;
  color: var(--dim);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.direct-connect-divider::before,
.direct-connect-divider::after { content: ''; height: 1px; flex: 1; background: var(--border); }
.direct-connect-manual { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 10px; }
.direct-connect-manual .btn-secondary { min-height: 39px; }
.empty-state .direct-connect-recovery {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 12.5px;
  text-align: center;
}
.connection-card .fields .mqtt-preset-note { margin: -2px 0 0; }
.demo-connect-summary {
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface2);
}
.demo-connect-list { display: grid; gap: 10px; margin: 0; padding-left: 18px; color: var(--dim); font-size: 13px; line-height: 1.5; }
.demo-connect-list li::marker { color: var(--accent); }
.direct-discovery { margin-top: 18px; color: var(--dim); }
.direct-discovery .direct-discovery-summary { margin: 0; font-size: 13px; }
.direct-discovery-list {
  margin: 12px 0 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  list-style: none;
}
.direct-discovery-list li + li { border-top: 1px solid var(--border); }
.direct-discovery-device {
  display: block;
  box-sizing: border-box;
  width: 100%;
  padding: 14px 15px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
}
.direct-discovery-device:hover { background: var(--surface2); }
.direct-discovery-device:focus-visible { position: relative; outline: 2px solid var(--accent); outline-offset: -2px; }
.direct-discovery-device-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.direct-discovery-device-name { min-width: 0; overflow-wrap: anywhere; font-size: 14px; font-weight: 650; }
.direct-discovery-device-action { flex: none; color: var(--accent); font-size: 12px; font-weight: 600; }
.direct-discovery-device-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 11px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}
.direct-discovery-device-field { display: grid; gap: 2px; min-width: 0; }
.direct-discovery-device-label {
  color: var(--dim);
  font-size: 9.5px;
  font-weight: 650;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.direct-discovery-device-value { overflow-wrap: anywhere; color: var(--text); font-size: 12px; }
.direct-discovery-device-value.mono { font-family: 'JetBrains Mono', monospace; font-size: 11px; }
.transport-choice {
  max-width: 560px;
  margin: 32px auto -36px;
  padding: 5px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 5px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface2);
}
.transport-choice label {
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--dim);
  font-size: 13px;
  font-weight: 650;
  text-align: center;
  cursor: pointer;
}
.transport-choice label:has(input:checked) { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.transport-choice input { margin-right: 6px; }
.transport-choice small { display: block; margin-top: 2px; color: var(--accent); font-size: 10px; text-transform: uppercase; letter-spacing: .05em; }
.device-recovery-hint {
  margin: 0 0 20px;
  padding: 14px 16px;
  text-align: left;
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: 12px;
}
.device-recovery-hint > strong { display: block; margin-bottom: 3px; font-size: 13.5px; color: var(--text); }
.device-recovery-hint p { margin: 0; font-size: 13px; line-height: 1.5; }

.device-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}
.device-banner-id { display: flex; align-items: center; gap: 12px; min-width: 200px; }
.device-banner-id h2 { font-size: 17px; margin: 0; }
.device-banner-name-editor { display: flex; align-items: center; min-height: 30px; }
.device-banner-name-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: min(420px, 60vw);
  min-width: 0;
  overflow: hidden;
  margin: 0;
  padding: 2px 0;
  border: 0;
  border-bottom: 1px dashed transparent;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-weight: 700;
  line-height: 1.25;
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}
.device-banner-name-trigger > span { min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.device-banner-name-icon { flex: 0 0 auto; color: var(--dim); transition: color .15s ease; }
.device-banner-name-trigger:not(:disabled):hover,
.device-banner-name-trigger:not(:disabled):focus-visible {
  border-bottom-color: var(--accent-line);
  color: var(--accent);
}
.device-banner-name-trigger:not(:disabled):hover .device-banner-name-icon,
.device-banner-name-trigger:not(:disabled):focus-visible .device-banner-name-icon { color: var(--accent); }
.device-banner-name-trigger:disabled { cursor: default; }
.device-banner-name-input {
  width: min(320px, 60vw);
  box-sizing: border-box;
  padding: 5px 8px;
  border: 1px solid var(--accent-line);
  border-radius: 7px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-weight: 700;
  line-height: 1.25;
}
.device-banner-name-editor[aria-busy="true"] .device-banner-name-trigger { opacity: .55; }
.device-banner-identity {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}
.device-firmware-update {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  margin: 0;
  padding: 3px 8px;
  border: 0;
  border-radius: 999px;
  background: var(--surface2);
  color: var(--dim);
  font: inherit;
  font-size: 11px;
  font-weight: 650;
  line-height: 1.4;
  cursor: pointer;
}
.device-firmware-update:hover {
  filter: brightness(0.97);
}
.device-firmware-update[data-ota-status="latest"] {
  background: var(--ok-soft);
  color: var(--ok);
}
.device-firmware-update[data-ota-status="update"] {
  background: color-mix(in srgb, var(--accent) 12%, var(--surface));
  color: var(--accent);
}
.device-firmware-update[data-ota-status="error"] {
  background: color-mix(in srgb, var(--danger) 12%, var(--surface));
  color: var(--danger);
}
.device-firmware-update[hidden] { display: none; }
.device-banner-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-left: auto; }
.device-banner .tool-note { flex-basis: 100%; margin: 0; }

.config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
}
.connectivity-grid { grid-template-columns: minmax(320px, 1fr) minmax(0, 2fr); }
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}
.panel h2 { font-size: 16px; margin: 0 0 16px; }
.panel h2.panel-title-status { display: flex; align-items: center; gap: 8px; }
.panel-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 8px; }
.panel-heading h2 { margin: 1px 0 0; font-size: 18px; }
.panel-eyebrow {
  display: block;
  color: var(--dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  font-weight: 650;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.panel-intro { margin: 0 0 18px; color: var(--dim); font-size: 12.5px; text-wrap: pretty; }
.config-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: none;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--surface2);
  color: var(--dim);
  font-size: 10.5px;
  font-weight: 650;
  white-space: nowrap;
}
.config-status[data-state="connected"] { color: var(--ok); background: var(--ok-soft); }
.config-status[data-state="disconnected"] { color: var(--danger); background: color-mix(in srgb, var(--danger) 9%, var(--surface)); }
.fields { display: flex; flex-direction: column; gap: 12px; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field label,
.field-label { font-size: 12px; font-weight: 600; color: var(--dim); }
.field label .opt { font-weight: 400; }
.field input {
  width: 100%;
  box-sizing: border-box;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: 13.5px;
}
.field input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.field input[data-preset-locked] {
  background: var(--surface2);
  color: var(--dim);
  cursor: not-allowed;
}
.field input[type="checkbox"][data-preset-locked] { opacity: .55; }
.field input.is-invalid,
.field select.is-invalid {
  border-color: var(--danger);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--danger) 16%, transparent);
  animation: espFieldErrorBlink .22s ease-in-out 4 alternate;
}
.field input.mono-input { font-family: 'JetBrains Mono', monospace; font-size: 12.5px; }
.field-help { display: block; color: var(--dim); font-size: 11px; line-height: 1.45; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field-row-2-1 { grid-template-columns: 2fr 1fr; }
.mqtt-host-port-row { grid-template-columns: minmax(0, 1fr) 96px; }
.mqtt-preset-note { margin: -2px 0 0; }
.credential-clear-control {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--dim);
  font-size: 11.5px;
  line-height: 1.45;
  cursor: pointer;
}
.credential-clear-control input { margin: 2px 0 0; flex: none; }
.config-advanced { overflow: hidden; border: 1px solid var(--border); border-radius: 10px; background: var(--surface2); }
.config-advanced summary {
  padding: 10px 12px;
  color: var(--dim);
  font-size: 11.5px;
  font-weight: 650;
  cursor: pointer;
  list-style-position: inside;
}
.config-advanced[open] summary { color: var(--text); border-bottom: 1px solid var(--border); }
.config-advanced-body { padding: 12px; }
.readonly-value {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface2);
  color: var(--dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
}
.panel-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.wifi-panel-actions { flex-wrap: nowrap; }
.diag-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
}
.diag-grid .stat { padding: 10px 12px; }
.diag-grid .stat-value { font-size: 12.5px; }

/* Modals */

body.modal-open { overflow: hidden; }
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 700;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(8, 12, 20, .56);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.modal-backdrop[hidden] { display: none; }
.modal-card {
  width: min(100%, 520px);
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  box-sizing: border-box;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: 0 24px 80px rgba(8, 12, 20, .32);
}
.modal-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.modal-head h2 { margin: 2px 0 0; font-size: 22px; }
.modal-kicker {
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.modal-close {
  width: 32px;
  height: 32px;
  flex: none;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: transparent;
  color: var(--dim);
  font: inherit;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}
.modal-close:hover { color: var(--text); }
.modal-description { margin: 10px 0 18px; color: var(--dim); font-size: 13px; }
.modal-warning {
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--danger) 35%, var(--border));
  border-radius: 10px;
  background: color-mix(in srgb, var(--danger) 7%, var(--surface));
  color: var(--text);
  font-size: 12.5px;
}
.matter-modal-card { width: min(100%, 620px); }
.ota-details-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ota-channel-field { margin: 0 0 16px; }
.ota-message {
  min-height: 42px;
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 9px;
  background: var(--surface2);
  color: var(--dim);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
}
.ota-message .stat-label { display: block; margin-bottom: 2px; font-family: 'Instrument Sans', sans-serif; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }

/* Guides */

.guide-loading { color: var(--dim); font-size: 14px; padding: 24px 0; }


.guides-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 18px;
}
.guide-section + .guide-section,
.media-section + .media-section { margin-top: 48px; }
.guide-section-head,
.media-section-head { margin-bottom: 18px; }
.guide-section-head h2,
.media-section-head h2 {
  margin: 0 0 4px;
  font-size: 21px;
  letter-spacing: -.02em;
}
.guide-section-head p,
.media-section-head p {
  margin: 0;
  color: var(--dim);
  font-size: 14px;
  text-wrap: pretty;
}
.guide-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  color: var(--text);
  display: flex;
  flex-direction: column;
}
.guide-card:hover { text-decoration: none; border-color: var(--accent-line); }
.guide-card-soon {
  position: relative;
  cursor: default;
}
.guide-card-soon::after {
  content: "Coming soon";
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 6px 10px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 74%, transparent);
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.guide-card-soon:hover { border-color: var(--border); }
.guide-card-soon img { filter: saturate(.88); }
.guide-card img {
  width: 100%;
  height: 150px;
  object-fit: contain;
  object-position: center;
  display: block;
}
.guide-body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.guide-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--accent);
  letter-spacing: .08em;
}
.guide-body h2,
.guide-body h3 { font-size: 16.5px; margin: 0; }
.guide-body p { margin: 0; font-size: 13px; color: var(--dim); flex: 1; }
.guide-meta { font-size: 12px; color: var(--dim); }

/* Docs */

.docs-cover {
  margin: 0 0 32px;
}
.docs-cover img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 14px;
}
.docs-cover figcaption {
  margin-top: 8px;
  color: var(--dim);
  font-size: 12.5px;
}

.docs-start {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin: 0 0 64px;
  padding: 28px;
  border: 1px solid var(--accent-line);
  border-radius: 18px;
  background: var(--accent-soft);
}
.docs-start-copy { max-width: 650px; }
.docs-start-copy h2 {
  margin: 7px 0 8px;
  font-size: 26px;
  letter-spacing: -.02em;
}
.docs-start-copy p { margin: 0; color: var(--dim); text-wrap: pretty; }
.docs-start-actions {
  display: flex;
  flex: none;
  flex-direction: column;
  gap: 10px;
  min-width: 208px;
  text-align: center;
}
.sdk-download { position: relative; }
.sdk-download > summary {
  display: flex;
  align-items: center;
  justify-content: center;
  list-style: none;
}
.sdk-download > summary::-webkit-details-marker { display: none; }
.sdk-download-menu {
  position: absolute;
  z-index: 20;
  top: calc(100% + 8px);
  right: 0;
  width: 280px;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow);
  text-align: left;
}
.sdk-download-menu a {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  border-radius: 8px;
  color: var(--text);
}
.sdk-download-menu a:hover { background: var(--surface2); text-decoration: none; }
.sdk-download-menu strong { font-size: 13.5px; }
.sdk-download-menu span { color: var(--dim); font-size: 11.5px; }
.sdk-download-menu code { font-family: 'JetBrains Mono', monospace; }
.sdk-download-menu span code { font-size: .92em; }
.sdk-download-version {
  margin-top: 3px;
  color: var(--accent);
  font-size: 10.5px;
  overflow-wrap: anywhere;
}
.docs-section { margin-bottom: 64px; }
.docs-section-head { margin-bottom: 24px; }
.docs-section-head h2 {
  margin: 7px 0 8px;
  font-size: clamp(27px, 3.5vw, 34px);
  letter-spacing: -.03em;
}
.docs-section-head p { margin: 0; color: var(--dim); text-wrap: pretty; }
.docs-paths {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.docs-path {
  display: flex;
  flex-direction: column;
  min-height: 180px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}
.docs-path-recommended {
  border-color: var(--accent-line);
  background: var(--accent-soft);
}
.docs-path-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
}
.docs-path h3 { margin: 10px 0 6px; font-size: 22px; }
.docs-path p { margin: 0 0 18px; color: var(--dim); font-size: 14px; text-wrap: pretty; }
.docs-path-meta {
  margin-top: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--dim);
}
.security-guidelines ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.security-guidelines li {
  position: relative;
  padding: 18px 20px 18px 44px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--dim);
  text-wrap: pretty;
}
.security-guidelines li::before {
  content: '✓';
  position: absolute;
  top: 18px;
  left: 18px;
  color: var(--accent);
  font-weight: 700;
}
.security-guidelines strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
}
.security-page .docs-start-copy p + p { margin-top: 12px; }
.security-page .docs-path > :is(.btn-primary, .btn-secondary) {
  align-self: flex-start;
  margin-top: auto;
}
.security-reporting-paths { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.docs-step {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 18px;
  padding: 0 0 52px;
}
.docs-step-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--accent);
  padding-top: 7px;
}
.docs-step-body { min-width: 0; }
.docs-step-body h3 { margin: 0 0 8px; font-size: 25px; letter-spacing: -.02em; }
.docs-step-body > p { margin: 0 0 18px; color: var(--dim); text-wrap: pretty; }
.docs-step-body .code-block { margin-bottom: 14px; }
.docs-step-body .docs-step-note { margin: 0; font-size: 13px; }
.docs-contracts {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.docs-contracts li { position: relative; padding-left: 24px; }
.docs-contracts li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}
.docs-next {
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.docs-next-heading { margin-bottom: 18px; }
.docs-next-heading h2 { margin: 6px 0 0; font-size: 27px; letter-spacing: -.02em; }
.docs-link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.docs-license { max-width: 820px; margin: 32px 0 0; color: var(--dim); font-size: 13px; }
.code-block {
  background: #12151c;
  border: 1px solid #232936;
  border-radius: 14px;
  padding: 22px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  line-height: 1.7;
  color: #c8d0de;
  overflow-x: auto;
}
.code-block pre { margin: 0; font: inherit; }
.code-block .c { color: #7a86a0; }
.code-block .k { color: #8fb6ff; }
.code-block .s { color: #9ece8f; }
.doc-links { display: flex; flex-direction: column; gap: 14px; }
.doc-link {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 22px;
  color: var(--text);
  display: block;
}
.doc-link:hover { text-decoration: none; border-color: var(--accent-line); }
.doc-link-title { font-family: 'Space Grotesk', sans-serif; font-weight: 600; margin-bottom: 3px; }
.doc-link-sub { font-size: 13px; color: var(--dim); }

/* ---------------------------------------------------------- footer */

.site-footer { border-top: 1px solid var(--border); margin-top: 40px; }
.site-footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 36px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
}
.footer-brand { display: flex; align-items: center; gap: 8px; color: var(--text); font-size: 13px; }
.footer-links { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; font-size: 13px; }
.footer-links a,
.footer-links a:visited {
  display: inline-flex;
  align-items: center;
  color: var(--text);
  text-decoration: none;
}
.footer-links a:hover,
.footer-links a:focus-visible { color: var(--accent); text-decoration: none; }

/* ---------------------------------------------------------- tool pages */

.page-tool { padding-top: calc(var(--header-height) + 48px); }

.tool-note { margin: 16px 0 0; font-size: 12.5px; color: var(--dim); }

.field select {
  width: 100%;
  box-sizing: border-box;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: 13.5px;
}
.field select:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.field select.mono-input { font-family: 'JetBrains Mono', monospace; font-size: 12.5px; }
.broker-host-control {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
}
.broker-host-control select {
  min-width: 0;
  border-radius: 9px 0 0 9px;
}
.broker-host-control input {
  min-width: 0;
  border-radius: 0 9px 9px 0;
  margin-left: -1px;
}
.broker-host-control :where(select, input):focus {
  position: relative;
  z-index: 1;
}
.mqtt-device-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
}
.mqtt-device-control .btn-primary { min-height: 39px; white-space: nowrap; }
.field-port-tls {
  display: flex;
  align-items: center;
  gap: 12px;
}
.field-port-tls input[type="number"] { flex: 1; min-width: 0; }
.field-port-tls .check {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
}
.field-inline { flex-direction: row; align-items: center; gap: 10px; }
.field-inline select { width: auto; }

.conn-idle-group { display: flex; align-items: center; gap: 6px; }
.demo-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  padding: 2px 6px;
  border-radius: 5px;
  background: var(--accent-soft);
  color: var(--accent);
}

.empty-alt { margin-top: 12px; }
.empty-state .tool-note { margin: 18px 0 0; }
.direct-connection-help {
  margin-top: 16px;
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--danger) 45%, var(--border));
  border-radius: 9px;
  background: color-mix(in srgb, var(--danger) 7%, var(--surface));
  color: var(--text);
  font-size: 12.5px;
  line-height: 1.5;
}
.direct-connection-help strong { color: var(--danger); }
.direct-connection-help p { margin: 5px 0 0; }
.direct-connection-help a { color: var(--accent); }
.link-btn {
  border: none;
  background: none;
  color: var(--accent);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  text-underline-offset: 3px;
}
.link-btn:visited { color: var(--accent); }
.link-btn:hover { color: var(--accent); text-decoration: underline; }

/* Flash */

.flash-summary {
  background: var(--surface2);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 13.5px;
  min-height: 44px;
}
.flash-status { margin-top: 10px; font-size: 12.5px; color: var(--dim); min-height: 18px; }
.flash-status.is-ready { color: var(--ok); }
.flash-status.is-error { color: var(--danger); }
.tool-note .link-btn { font-size: inherit; padding: 0; }
.link-btn:disabled { opacity: .45; cursor: not-allowed; text-decoration: none; }
.tool-note a[aria-disabled="true"] { opacity: .45; cursor: not-allowed; text-decoration: none; }
esp-web-install-button { display: inline-block; }
esp-web-install-button.is-disabled,
esp-web-install-button[inert] {
  pointer-events: none;
  opacity: .45;
}

/* ESP Web Tools 10.4.0 inherits these Material 3 tokens across its shadow roots. */
ewt-install-dialog {
  color-scheme: light;
  --roboto-font: 'Instrument Sans', system-ui, sans-serif;
  --text-color: var(--dim);
  --danger-color: var(--danger);
  --md-ref-typeface-brand: 'Instrument Sans', system-ui, sans-serif;
  --md-ref-typeface-plain: 'Instrument Sans', system-ui, sans-serif;
  --md-sys-color-primary: var(--accent);
  --md-sys-color-on-primary: var(--on-accent);
  --md-sys-color-primary-container: var(--accent-soft);
  --md-sys-color-secondary: var(--accent);
  --md-sys-color-secondary-container: var(--surface2);
  --md-sys-color-on-secondary-container: var(--text);
  --md-sys-color-tertiary: var(--accent);
  --md-sys-color-tertiary-container: var(--accent-soft);
  --md-sys-color-surface: var(--surface);
  --md-sys-color-surface-container: var(--surface);
  --md-sys-color-surface-container-high: var(--surface);
  --md-sys-color-surface-container-highest: var(--surface2);
  --md-sys-color-on-surface: var(--text);
  --md-sys-color-on-surface-variant: var(--dim);
  --md-sys-color-outline-variant: var(--border);
  --md-sys-color-error: var(--danger);
  --md-sys-color-on-error-container: var(--danger);
  --md-sys-color-scrim: #050608;
  --md-sys-color-shadow: #10141c;
  --md-sys-shape-corner-extra-large: 16px;
  --md-sys-shape-corner-extra-small: 9px;
  --md-dialog-container-color: var(--surface);
  --md-dialog-container-shape: 16px;
  --md-dialog-headline-color: var(--text);
  --md-dialog-headline-font: 'Space Grotesk', system-ui, sans-serif;
  --md-dialog-headline-size: 1.375rem;
  --md-dialog-headline-weight: 600;
  --md-dialog-supporting-text-color: var(--dim);
  --md-dialog-supporting-text-font: 'Instrument Sans', system-ui, sans-serif;
  --md-dialog-supporting-text-size: .875rem;
  --md-dialog-supporting-text-line-height: 1.45rem;
  --md-list-container-color: transparent;
  --md-list-item-label-text-color: var(--text);
  --md-list-item-label-text-font: 'Instrument Sans', system-ui, sans-serif;
  --md-list-item-label-text-weight: 600;
  --md-list-item-supporting-text-color: var(--dim);
  --md-list-item-supporting-text-font: 'Instrument Sans', system-ui, sans-serif;
  --md-list-item-hover-state-layer-color: var(--accent);
  --md-list-item-pressed-state-layer-color: var(--accent);
  --md-text-button-container-shape: 9px;
  --md-text-button-label-text-color: var(--accent);
  --md-text-button-label-text-font: 'Instrument Sans', system-ui, sans-serif;
  --md-text-button-label-text-weight: 650;
  --md-text-button-hover-state-layer-color: var(--accent);
  --md-text-button-pressed-state-layer-color: var(--accent);
  --md-icon-button-icon-color: var(--dim);
  --md-icon-button-hover-icon-color: var(--text);
  --md-icon-button-focus-icon-color: var(--text);
  --md-filled-field-container-color: var(--surface2);
  --md-filled-field-focus-active-indicator-color: var(--accent);
  --md-filled-text-field-container-color: var(--surface2);
  --md-filled-text-field-focus-active-indicator-color: var(--accent);
  --md-filled-text-field-caret-color: var(--accent);
  --md-filled-select-text-field-container-color: var(--surface2);
  --md-filled-select-text-field-focus-active-indicator-color: var(--accent);
  --md-checkbox-selected-container-color: var(--accent);
  --md-checkbox-selected-focus-container-color: var(--accent);
  --md-checkbox-selected-hover-container-color: var(--accent);
  --md-checkbox-selected-pressed-container-color: var(--accent);
  --md-circular-progress-active-indicator-color: var(--accent);
  --md-divider-color: var(--border);
  --md-elevation-shadow-color: #10141c;
}
.support-notice {
  margin: -20px 0 28px;
  padding: 12px 14px;
  border: 1px solid color-mix(in srgb, var(--danger) 24%, var(--border));
  border-radius: 10px;
  background: color-mix(in srgb, var(--danger) 6%, var(--surface));
  color: var(--dim);
  font-size: 13px;
}

.matter-result {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: flex-start;
}
.matter-qr {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  line-height: 0;
}
.matter-codes { margin: 0; display: flex; flex-direction: column; gap: 10px; flex: 1; min-width: 200px; }
.matter-codes dt {
  font-size: 10.5px;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 3px;
}
.matter-codes dd { margin: 0; }
.matter-codes code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  word-break: break-all;
  background: var(--surface2);
  border-radius: 6px;
  padding: 6px 9px;
  display: block;
}

/* Monitor */

.mon-chart {
  width: 100%;
  height: 196px;
  display: block;
  background: var(--surface2);
  border-radius: 10px;
}
.js-mon-state.motion { color: var(--accent); }

/* Device console */

.device-console-banner { align-items: center; }
.device-view[hidden] { display: none; }
.device-live-grid { grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr); }
.device-motion-panel { min-height: 390px; }
.device-motion-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.device-motion-state { font-family: 'Space Grotesk', sans-serif; font-size: 42px; font-weight: 700; line-height: 1; }
.device-motion-state.motion { color: var(--accent); }
.device-motion-score { text-align: right; }
.device-motion-score strong { display: block; margin-top: 2px; font-family: 'JetBrains Mono', monospace; font-size: 24px; }
.live-sensing-controls h2 { margin: 0; }
.live-sensing-controls > p { margin: 4px 0 14px; color: var(--dim); font-size: 12px; }
.live-controls-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.live-control-wide { grid-column: 1 / -1; }
.live-calibration {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface2);
}
.live-calibration strong { display: block; font-size: 12px; }
.empty-state .live-calibration p,
.live-calibration p { margin: 2px 0 0; color: var(--dim); font-size: 11px; line-height: 1.4; }
.device-live-diagnostics { margin-top: 18px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); }
.device-live-diagnostics > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 20px;
  cursor: pointer;
  list-style: none;
}
.device-live-diagnostics > summary::-webkit-details-marker { display: none; }
.device-live-diagnostics > summary::after { content: '+'; color: var(--accent); font-size: 20px; line-height: 1; }
.device-live-diagnostics[open] > summary::after { content: '−'; }
.device-live-diagnostics > summary span { font-weight: 650; }
.device-live-diagnostics > summary small { margin-left: auto; color: var(--dim); font-size: 11.5px; }
.device-live-diagnostics .diag-grid { padding: 0 18px 18px; }
.device-live-diagnostics .tool-note { margin: 0; padding: 0 18px 18px; }
/* Theremin */

.theremin-stage {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 36px;
}
.theremin-readout { display: flex; flex-direction: column; gap: 4px; }
.theremin-freq {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -.03em;
  line-height: 1;
}
.theremin-unit { font-size: 20px; color: var(--dim); margin-left: 6px; font-weight: 500; }
.theremin-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.theremin-stage .tool-note, .game-stage .tool-note { margin: 0; }

/* Game */

.game-stage {
  width: 100%;
  max-width: none;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 24px;
}
.game-screen {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(137, 151, 205, .32);
  border-radius: 15px;
  background: #080912;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .025), 0 18px 48px rgba(7, 9, 18, .18);
}
.game-canvas {
  display: block;
  width: 100%;
  height: clamp(250px, 40vw, 440px);
  touch-action: manipulation;
}
.game-status {
  position: absolute;
  z-index: 2;
  top: 14px;
  right: 14px;
  width: min(270px, calc(100% - 138px));
  padding: 9px 11px 10px;
  border: 1px solid rgba(180, 194, 255, .18);
  border-radius: 9px;
  background: rgba(7, 9, 18, .7);
  color: #f1f3ff;
  text-align: left;
  pointer-events: none;
  backdrop-filter: blur(8px);
}
.game-status-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.game-score {
  display: flex;
  align-items: baseline;
  gap: 7px;
  min-width: 0;
}
.game-score strong {
  font-size: 25px;
  letter-spacing: -.03em;
}
.game-status-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid rgba(180, 194, 255, .13);
}
.game-status-row > div { min-width: 0; }
.game-status span,
.game-status strong {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.game-status span {
  color: rgba(197, 204, 232, .66);
  font-size: 9px;
  font-weight: 650;
  letter-spacing: .08em;
  line-height: 1.2;
  text-transform: uppercase;
}
.game-status-row strong {
  margin-top: 3px;
  color: #f1f3ff;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  line-height: 1;
}
.game-motion-gauge {
  display: none;
  position: absolute;
  z-index: 2;
  top: 0;
  bottom: 0;
  left: 0;
  width: 24px;
}
.game-motion-track {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 8px;
  overflow: visible;
  background: rgba(161, 174, 225, .13);
  box-shadow: inset -1px 0 rgba(190, 201, 246, .18);
}
.game-motion-fill {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 0;
  background: linear-gradient(0deg, #5267e8, #9eb0ff);
  box-shadow: 0 0 15px rgba(99, 122, 255, .62);
  transition: height .12s linear;
}
.game-motion-threshold {
  position: absolute;
  bottom: 50%;
  left: 0;
  width: 15px;
  border-top: 1px solid rgba(255, 255, 255, .9);
}
.game-motion-threshold-input {
  position: absolute;
  z-index: 3;
  inset: 0;
  width: 24px;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ns-resize;
  touch-action: none;
}
.game-motion-gauge:focus-within .game-motion-threshold {
  border-color: #fff;
  box-shadow: 0 0 7px rgba(255, 255, 255, .6);
}
.game-motion-label {
  position: absolute;
  bottom: 12px;
  left: 11px;
  color: rgba(211, 218, 247, .56);
  font-family: 'JetBrains Mono', monospace;
  font-size: 8px;
  font-weight: 650;
  letter-spacing: .11em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}
.game-motion-gauge.is-active .game-motion-fill {
  background: linear-gradient(0deg, #5267e8, #92f0d0);
  box-shadow: 0 0 18px rgba(110, 238, 202, .68);
}
.game-screen-controls {
  position: absolute;
  z-index: 2;
  top: 14px;
  left: 14px;
  display: flex;
  align-items: center;
  gap: 7px;
}
.game-screen-badge,
.game-sound,
.game-fullscreen {
  padding: 6px 9px;
  border: 1px solid rgba(180, 194, 255, .22);
  border-radius: 7px;
  background: rgba(7, 9, 18, .66);
  color: rgba(226, 231, 255, .82);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 650;
  letter-spacing: .1em;
  line-height: 1;
  backdrop-filter: blur(8px);
}
.game-screen-badge { pointer-events: none; }
.game-sound,
.game-fullscreen {
  color: rgba(226, 231, 255, .82);
  cursor: pointer;
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}
.game-fullscreen:hover,
.game-fullscreen:focus-visible,
.game-sound:hover,
.game-sound:focus-visible {
  border-color: rgba(180, 194, 255, .5);
  background: rgba(25, 29, 55, .88);
  color: #fff;
}
.game-sound[aria-pressed="false"] {
  color: rgba(226, 231, 255, .52);
}
.game-play {
  position: absolute;
  z-index: 3;
  top: 54%;
  left: 50%;
  min-width: 132px;
  padding: 12px 20px;
  border: 1px solid rgba(177, 190, 255, .52);
  border-radius: 999px;
  background: rgba(75, 96, 224, .9);
  box-shadow: 0 10px 28px rgba(22, 30, 90, .42), 0 0 24px rgba(89, 111, 242, .28);
  color: #fff;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transform: translate(-50%, -50%);
  transition: background .15s ease, box-shadow .15s ease, transform .15s ease;
}
.game-play:hover,
.game-play:focus-visible {
  background: #6076ef;
  box-shadow: 0 12px 34px rgba(22, 30, 90, .52), 0 0 30px rgba(105, 127, 255, .4);
  transform: translate(-50%, -50%) scale(1.03);
}
.game-play[hidden] { display: none; }
.game-screen:fullscreen,
.game-screen:-webkit-full-screen {
  width: 100vw;
  height: 100vh;
  border: 0;
  border-radius: 0;
  background: #080912;
}
.game-screen:fullscreen .game-canvas,
.game-screen:-webkit-full-screen .game-canvas {
  width: 100%;
  height: 100%;
}
.game-screen:fullscreen .game-motion-gauge,
.game-screen:-webkit-full-screen .game-motion-gauge { display: block; }
.game-screen:fullscreen .game-screen-controls,
.game-screen:-webkit-full-screen .game-screen-controls { left: 32px; }
.game-screen::backdrop { background: #080912; }
.game-screen[data-phase="running"] .game-screen-badge { color: #aebdff; }
.game-screen[data-phase="done"] .game-screen-badge { color: #ff9da2; border-color: rgba(255, 103, 109, .35); }
.game-screen[data-phase="done"] .game-status {
  top: 50%;
  right: auto;
  left: 50%;
  width: min(390px, calc(100% - 56px));
  padding: 20px 24px 22px;
  border-color: rgba(255, 132, 139, .36);
  background: rgba(9, 10, 25, .84);
  box-shadow: 0 18px 52px rgba(2, 3, 14, .54), 0 0 34px rgba(235, 104, 121, .13);
  text-align: center;
  transform: translate(-50%, -50%);
}
.game-screen[data-phase="done"] .game-status-head {
  display: block;
}
.game-screen[data-phase="done"] .game-screen-badge {
  display: inline-block;
  margin-bottom: 10px;
}
.game-screen[data-phase="done"] .game-score {
  display: block;
}
.game-screen[data-phase="done"] .game-score strong {
  margin-top: 3px;
  color: #fff4f5;
  font-size: clamp(52px, 10vw, 78px);
  line-height: .9;
  text-shadow: 0 0 24px rgba(255, 130, 143, .32);
}
.game-screen[data-phase="done"] .game-status-row {
  max-width: 300px;
  margin: 16px auto 0;
  padding-top: 13px;
}
.game-screen[data-phase="done"] .game-status-row strong {
  font-size: 16px;
}
.game-screen[data-phase="done"] .game-play {
  top: auto;
  bottom: 16px;
  transform: translateX(-50%);
}
.game-screen[data-phase="done"] .game-play:hover,
.game-screen[data-phase="done"] .game-play:focus-visible {
  transform: translateX(-50%) scale(1.03);
}
.game-msg {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 19px;
  font-weight: 600;
  min-height: 26px;
}
.game-meter-block {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
}
.game-threshold-slider {
  position: absolute;
  left: 0;
  width: 100%;
  top: 0;
  height: 28px;
  margin: -9px 0 0;
  padding: 0;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  cursor: ew-resize;
}
.game-threshold-slider::-webkit-slider-runnable-track {
  height: 10px;
  background: transparent;
  border: none;
}
.game-threshold-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 4px;
  height: 22px;
  border: 0;
  border-radius: 2px;
  background: var(--text);
  box-shadow: 0 0 0 1px var(--surface);
  cursor: ew-resize;
}
.game-threshold-slider::-moz-range-track {
  height: 10px;
  background: transparent;
  border: none;
}
.game-threshold-slider::-moz-range-thumb {
  width: 4px;
  height: 22px;
  border: 0;
  border-radius: 2px;
  background: var(--text);
  box-shadow: 0 0 0 1px var(--surface);
  cursor: ew-resize;
}
.game-threshold-slider:disabled {
  cursor: default;
  opacity: .45;
}
.game-meter { text-align: left; }

/* Articles (guides and docs subpages) */

.page-article { padding-top: calc(var(--header-height) + 48px); }
.article { width: 100%; }
.legal-identity {
  margin: 24px 0 32px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.legal-identity > div {
  display: grid;
  grid-template-columns: minmax(150px, .7fr) minmax(0, 1.3fr);
  gap: 20px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.legal-identity > div:last-child { border-bottom: 0; }
.legal-identity dt { color: var(--dim); font-weight: 600; }
.legal-identity dd { margin: 0; overflow-wrap: anywhere; }
.article > .guide-tag { display: block; margin-bottom: 12px; }
.article h1 {
  font-size: clamp(30px, 4.5vw, 40px);
  letter-spacing: -.02em;
  line-height: 1.1;
  margin: 0 0 14px;
}
.article-lead {
  font-size: 17px;
  color: var(--dim);
  margin: 0 0 40px;
  text-wrap: pretty;
}
.article h2 {
  font-size: 22px;
  letter-spacing: -.02em;
  margin: 44px 0 12px;
}
.article .subheading { font-size: 17px; margin: 30px 0 10px; }
.article p { margin: 0 0 14px; text-wrap: pretty; }
.article code {
  font-family: 'JetBrains Mono', monospace;
  font-size: .88em;
  background: var(--surface2);
  border-radius: 5px;
  padding: 1px 5px;
}

.article .checklist {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.article .checklist li { padding-left: 24px; position: relative; }
.article .checklist li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.table-wrap { overflow-x: auto; margin: 0 0 14px; }
.article table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.article th, .article td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.article th {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--dim);
  background: var(--surface2);
}
.article tr:last-child td { border-bottom: none; }

.article figure { margin: 20px 0; }
.article figure img {
  width: 100%;
  height: auto;
  border-radius: 14px;
  border: 1px solid var(--border);
  display: block;
}
.article figcaption { font-size: 12.5px; color: var(--dim); margin-top: 8px; }
.multipath-sequence { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.multipath-frame { min-width: 0; }
.article .multipath-frame strong {
  display: block;
  margin-top: 7px;
  color: var(--text);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 12.5px;
}

.article .note,
.security-page .note {
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  border-radius: 12px;
  padding: 14px 18px;
  font-size: 14px;
  margin: 18px 0;
}
.page-toc {
  margin: 0 0 34px;
  padding: 13px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface2);
  font-size: 12.5px;
}
.page-toc summary,
.page-toc strong {
  display: none;
  color: var(--text);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 700;
}
.page-toc nav strong { display: block; }
.page-toc nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
}
.page-toc a { font-weight: 600; }
.article :is(h2, h3)[id],
.docs-quickstart :is(h2, h3)[id] { scroll-margin-top: calc(var(--header-height) + 20px); }

/* Media */

.media-section .guide-card { min-height: 190px; }
.media-section .guide-body { padding: 22px; }
.media-section .guide-meta { margin-top: 10px; }
.media-submit {
  margin-top: 56px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.media-submit h2 {
  margin: 5px 0 0;
  font-size: 17px;
}
.media-submit > a {
  flex: none;
  color: var(--accent);
  font-weight: 600;
  font-size: 13px;
}

/* Roadmap */

.roadmap-vision {
  min-height: 610px;
  margin-bottom: 84px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  border-radius: 22px;
  isolation: isolate;
  background: var(--media-bg);
  color: var(--media-text);
}
.roadmap-vision > picture,
.roadmap-vision-scrim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.roadmap-vision > picture { z-index: -2; }
.roadmap-vision > picture img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center;
  filter: saturate(.88) contrast(1.03);
}
.roadmap-vision-scrim {
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(4, 5, 7, .94) 0%, rgba(4, 5, 7, .78) 43%, rgba(4, 5, 7, .12) 78%),
    linear-gradient(0deg, rgba(4, 5, 7, .84) 0%, transparent 58%);
}
.roadmap-vision-copy { box-sizing: border-box; max-width: 810px; padding: 54px; }
.roadmap-vision-kicker,
.roadmap-eyebrow {
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.roadmap-vision-kicker { color: var(--scene-motion); }
.roadmap-vision h1 {
  max-width: 780px;
  margin: 14px 0 22px;
  font-size: clamp(48px, 6.5vw, 76px);
  font-weight: 600;
  line-height: .96;
  letter-spacing: -.052em;
  text-wrap: balance;
  text-shadow: 0 2px 30px rgba(0, 0, 0, .35);
}
.roadmap-vision-copy > p {
  max-width: 660px;
  margin: 0;
  color: color-mix(in srgb, var(--media-text) 78%, transparent);
  font-size: 17px;
  line-height: 1.55;
  text-wrap: pretty;
}
.roadmap-principles {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-top: 30px;
  color: color-mix(in srgb, var(--media-text) 60%, transparent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: .07em;
  text-transform: uppercase;
}
.roadmap-principles span:not(:last-child)::after { content: '·'; margin-left: 22px; color: color-mix(in srgb, var(--media-text) 32%, transparent); }
.roadmap-status {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 5px 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: .05em;
  text-transform: uppercase;
  white-space: nowrap;
}
.status-progress { border-color: color-mix(in srgb, var(--accent) 50%, var(--border)); background: color-mix(in srgb, var(--accent) 9%, var(--surface)); }
.status-planned { border-color: color-mix(in srgb, var(--scene-embedded) 55%, var(--border)); background: color-mix(in srgb, var(--scene-embedded) 10%, var(--surface)); }
.status-research { border-color: color-mix(in srgb, var(--scene-presence) 55%, var(--border)); background: color-mix(in srgb, var(--scene-presence) 10%, var(--surface)); }
.roadmap-foundation {
  margin-bottom: 100px;
  padding: 34px;
  border: 1px solid var(--accent-line);
  border-radius: 20px;
  background: var(--surface);
}
.roadmap-foundation-head {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 34px;
  align-items: start;
}
.roadmap-foundation-head > div:first-child { display: flex; flex-direction: column; align-items: flex-start; }
.roadmap-foundation-version { margin-top: 18px; font-family: 'Space Grotesk', sans-serif; font-size: 52px; font-weight: 600; line-height: 1; letter-spacing: -.045em; }
.roadmap-foundation h2 { max-width: 760px; margin: 7px 0 11px; font-size: clamp(30px, 4vw, 42px); line-height: 1.03; letter-spacing: -.038em; text-wrap: balance; }
.roadmap-foundation-head p { max-width: 760px; margin: 0; color: var(--dim); line-height: 1.55; text-wrap: pretty; }
.roadmap-foundation-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  margin: 30px 0 0;
  border: 1px solid var(--accent-line);
  border-radius: 14px;
  background: var(--accent-line);
}
.roadmap-foundation-grid > div { padding: 18px; background: linear-gradient(var(--accent-soft), var(--accent-soft)), var(--surface); }
.roadmap-foundation-grid dt { margin-bottom: 7px; font-family: 'Space Grotesk', sans-serif; font-size: 15px; font-weight: 650; }
.roadmap-foundation-grid dd { margin: 0; color: var(--dim); font-size: 12.5px; line-height: 1.5; }
.roadmap-direction { margin-bottom: 100px; }
.roadmap-section-head { margin-bottom: 30px; }
.roadmap-section-head-wide { max-width: 780px; margin-bottom: 42px; }
.roadmap-section-head h2 { margin: 7px 0 10px; font-size: clamp(32px, 5vw, 48px); line-height: 1.02; letter-spacing: -.04em; text-wrap: balance; }
.roadmap-section-head p { margin: 0; color: var(--dim); line-height: 1.55; text-wrap: pretty; }
.roadmap-chapters { display: grid; gap: 28px; }
.roadmap-chapter {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: 0 18px 50px rgba(16, 20, 28, .035);
}
.roadmap-chapter-now { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); border-color: var(--accent-line); }
.roadmap-chapter-with-media { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr); min-height: 480px; }
.roadmap-chapter-reverse { grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr); }
.roadmap-chapter-reverse .roadmap-chapter-media { order: 2; }
.roadmap-chapter-copy { display: flex; flex-direction: column; justify-content: center; padding: 42px; }
.roadmap-chapter-meta { display: flex; align-items: center; justify-content: flex-end; gap: 18px; margin-bottom: 52px; }
.roadmap-chapter h3 { max-width: 560px; margin: 0 0 16px; font-size: clamp(30px, 4vw, 44px); line-height: 1.02; letter-spacing: -.04em; text-wrap: balance; }
.roadmap-chapter-copy > p { margin: 0; color: var(--dim); line-height: 1.6; text-wrap: pretty; }
.roadmap-chapter-media { min-width: 0; min-height: 100%; margin: 0; background: var(--media-bg); }
.roadmap-chapter-media picture,
.roadmap-chapter-media img { width: 100%; height: 100%; display: block; }
.roadmap-chapter-media img { object-fit: cover; filter: saturate(.88) contrast(1.03); }
.roadmap-release-sequence { margin: 0; padding: 18px 32px; list-style: none; background: var(--accent-soft); }
.roadmap-release-sequence li { display: grid; grid-template-columns: 58px minmax(0, 1fr); gap: 14px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid var(--accent-line); }
.roadmap-release-sequence li:last-child { border-bottom: 0; }
.roadmap-release-sequence strong { font-family: 'JetBrains Mono', monospace; font-size: 12px; }
.roadmap-release-sequence span { color: var(--dim); font-size: 13.5px; line-height: 1.5; }
.roadmap-chapter-points { margin: 26px 0 0; padding: 0; list-style: none; }
.roadmap-chapter-points li { position: relative; padding: 12px 0 12px 18px; border-top: 1px solid var(--border); color: var(--dim); font-size: 13px; line-height: 1.5; }
.roadmap-chapter-points li::before { content: ''; position: absolute; top: 20px; left: 0; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.roadmap-research { margin-bottom: 72px; padding: 40px; border-radius: 20px; background: #17191d; color: var(--media-text); }
.roadmap-research .guide-tag { color: var(--scene-presence); }
.roadmap-research .roadmap-section-head p { color: color-mix(in srgb, var(--media-text) 60%, transparent); }
.roadmap-research-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--media-line); }
.roadmap-research-list article { display: grid; grid-template-columns: 32px minmax(0, 1fr); gap: 14px; padding: 24px 22px 24px 0; border-bottom: 1px solid var(--media-line); }
.roadmap-research-list article:nth-child(odd) { border-right: 1px solid var(--media-line); }
.roadmap-research-list article:nth-child(even) { padding-left: 22px; }
.roadmap-research-list article > span { color: color-mix(in srgb, var(--media-text) 35%, transparent); font-family: 'JetBrains Mono', monospace; font-size: 10px; }
.roadmap-research-list h3 { margin: 0 0 7px; font-size: 17px; }
.roadmap-research-list p { margin: 0; color: color-mix(in srgb, var(--media-text) 58%, transparent); font-size: 12.5px; line-height: 1.55; }
.roadmap-source { display: flex; align-items: center; justify-content: space-between; gap: 34px; padding: 26px 28px; border: 1px solid var(--border); border-radius: 16px; background: var(--surface); }
.roadmap-source > div:first-child { max-width: 620px; }
.roadmap-source strong { display: block; margin-bottom: 5px; font-family: 'Space Grotesk', sans-serif; font-size: 18px; color: var(--text); }
.roadmap-source p { margin: 0; color: var(--dim); font-size: 13px; line-height: 1.55; }
.roadmap-source-links { display: flex; flex-direction: column; align-items: flex-start; gap: 7px; flex: none; }
.roadmap-source-links a { font-size: 13px; font-weight: 600; }

.article .code {
  background: #12151c;
  border: 1px solid #232936;
  border-radius: 12px;
  padding: 18px 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  line-height: 1.7;
  color: #c8d0de;
  overflow-x: auto;
  margin: 16px 0;
}
.article .code code { background: none; padding: 0; font-size: inherit; }
.article .code .c { color: #7a86a0; }
.article .code .k { color: #8fb6ff; }
.article .code .s { color: #9ece8f; }

.code-tabs {
  overflow: hidden;
  margin: 18px 0 24px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: 0 10px 30px rgba(16, 20, 28, .04);
}
.code-tabs-list {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 6px;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
  scrollbar-width: thin;
}
.code-tabs-list [role="tab"] {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--dim);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  cursor: pointer;
}
.code-tabs-list [role="tab"]:hover { color: var(--text); }
.code-tabs-list [role="tab"][aria-selected="true"] {
  border-color: var(--accent-line);
  background: var(--surface);
  color: var(--accent);
}
.code-tabs-list [role="tab"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.code-tab-panel { padding: 18px; }
.code-tab-panel > :first-child { margin-top: 0; }
.code-tab-panel > :last-child { margin-bottom: 0; }
.code-tab-panel .code { margin: 10px 0 16px; }
.code-tab-subsection {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}
.code-tab-subsection .subheading { margin: 0 0 8px; }
.code-tab-subsection > :last-child { margin-bottom: 0; }

.steps-list {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: 0 0 14px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.steps-list li {
  counter-increment: step;
  position: relative;
  padding-left: 44px;
}
.steps-list li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--accent);
}
.steps-list h3 { font-size: 15.5px; margin: 0 0 4px; }
.steps-list p { margin: 0; font-size: 14px; color: var(--dim); }

.mini-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
  margin: 0 0 14px;
}
.mini-cards article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
}
.mini-cards h3 { font-size: 14.5px; margin: 0 0 8px; }
.mini-cards ul { margin: 0; padding-left: 18px; font-size: 13px; color: var(--dim); }
.mini-cards li { margin-bottom: 4px; }
.profile-choice-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.profile-choice-cards article { display: flex; flex-direction: column; gap: 10px; }
.profile-choice-cards h3 { margin: 0; font-size: 20px; }
.profile-choice-cards p { margin: 0; color: var(--dim); font-size: 13.5px; }
.profile-choice-cards p:last-child { margin-top: auto; }
.profile-comparison { display: grid; gap: 10px; margin: 0 0 20px; }
.profile-comparison-row {
  display: grid;
  grid-template-columns: minmax(130px, .55fr) repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}
.profile-comparison-row h3 { margin: 0; font-size: 14.5px; }
.profile-comparison-row strong { display: block; margin-bottom: 4px; font-size: 13px; color: var(--accent); }
.profile-comparison-row p { margin: 0; color: var(--dim); font-size: 13.5px; }
.article-footnote { color: var(--dim); font-size: 13px; }

.pipeline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}
.pipeline > div {
  flex: 1;
  min-width: 120px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  position: relative;
}
.pipeline > div:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--dim);
  z-index: 1;
}
.pipeline strong { display: block; font-size: 13px; }
.pipeline span { font-size: 11px; color: var(--dim); }

.arch-stack { display: flex; flex-direction: column; gap: 10px; margin: 16px 0; }
.arch-layer {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  background: var(--surface);
}
.arch-layer-mid { background: var(--surface2); }
.arch-layer-core {
  background: var(--accent-soft);
  border-color: var(--accent-line);
}
.arch-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 15px;
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 4px;
}
.arch-desc { font-size: 13.5px; color: var(--dim); }

.api-reference-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 22px;
  border: 1px solid var(--accent-line);
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--text);
}
.api-reference-cta:hover { text-decoration: none; }
.api-reference-cta strong { display: block; font-family: 'Space Grotesk', sans-serif; }
.api-reference-cta small { display: block; margin-top: 3px; color: var(--dim); }
.api-reference-cta > span:last-child { color: var(--accent); font-size: 22px; }
.api-map {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.api-map a {
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
}
.api-map a:hover { border-color: var(--accent-line); text-decoration: none; }
.api-map code { display: inline-block; margin-bottom: 7px; color: var(--accent); }
.api-map span { display: block; color: var(--dim); font-size: 13px; }
.api-lifecycle > div { min-width: 150px; }
.example-picker {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.example-picker article {
  display: flex;
  flex-direction: column;
  min-height: 190px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
}
.article .example-picker h2 { margin: 8px 0 6px; font-size: 20px; }
.article .example-picker p { color: var(--dim); font-size: 13.5px; }
.example-picker a { margin-top: auto; font-size: 13px; font-weight: 600; }
.compact-steps { margin-top: 20px; }
.runtime-port-notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0;
}
.runtime-port-notes > div {
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}
.runtime-port-notes strong { display: block; margin-bottom: 5px; font-size: 14px; }
.runtime-port-notes span { display: block; color: var(--dim); font-size: 13px; }

.article-nav {
  display: flex;
  gap: 16px;
  margin-top: 44px;
}
.article-nav .doc-link { flex: 1 1 0; min-width: 0; }
.article-nav .doc-link-next { text-align: right; }
.article-nav .doc-link:only-child {
  box-sizing: border-box;
  flex: 0 0 calc(50% - 8px);
}
.article-nav .doc-link-next:only-child { margin-left: auto; }

/* Toast */

.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 500;
  box-shadow: var(--shadow);
  /* Above .modal-backdrop (700); below .skip-link (1000). */
  z-index: 800;
  max-width: min(90vw, 480px);
  text-align: center;
}
.toast-sticky { z-index: 790; }
.toast.js-toast:not([hidden]) ~ .toast-sticky:not([hidden]) { bottom: 84px; }

/* Consent */

.consent-banner {
  position: fixed;
  z-index: 600;
  left: 20px;
  right: 20px;
  bottom: 20px;
  max-width: 880px;
  margin: 0 auto;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: 0 18px 60px rgba(8, 12, 20, .22);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.consent-banner strong { font-family: 'Space Grotesk', sans-serif; font-size: 16px; }
.consent-banner p { margin: 4px 0 2px; color: var(--dim); font-size: 13px; }
.consent-banner a { font-size: 13px; }
.consent-actions { display: flex; gap: 10px; flex: none; }

/* ---------------------------------------------------------- responsive */

@media (max-width: 900px) {
  .roadmap-foundation-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .roadmap-chapter-now,
  .roadmap-chapter-with-media,
  .roadmap-chapter-reverse { grid-template-columns: minmax(0, 1fr); }
  .roadmap-chapter-media { min-height: 360px; }
  .roadmap-chapter-reverse .roadmap-chapter-media { order: 0; }
}

@media (min-width: 721px) and (max-width: 900px) {
  .home-resource-links { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .home-resource-links a:nth-child(4) { border-left: 0; }
  .home-resource-links a:nth-child(n+4) { border-top: 1px solid var(--border); }
}

@media (min-width: 721px) and (max-height: 800px) {
  .home-action-inner {
    padding: calc(var(--header-height) + 4px) 40px 24px;
    gap: 14px;
  }
  .home-tool-card { min-height: 140px; padding: 16px 18px; }
  .home-tool-card h3 { margin-top: 8px; font-size: 21px; }
  .home-card-action { padding-top: 10px; }
  .home-resource-links a { padding: 13px 18px; }
  .home-license-cta { padding: 14px 18px; }
  .home-license-cta h3 { font-size: 21px; }
}

@media (max-width: 720px) {
  .page-title { font-size: 36px; }
  .page-sub { font-size: 17px; }
  .page-sub-callout { font-size: 16px; }
  .contact-team-media { aspect-ratio: 4 / 3; margin-bottom: 40px; border-radius: 16px; }
  .article-nav { flex-direction: column; gap: 12px; }
  .article-nav .doc-link:only-child { flex-basis: auto; }
  .article-nav .doc-link-next:only-child { margin-left: 0; }
  .profile-comparison-row { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .profile-choice-cards { grid-template-columns: minmax(0, 1fr); }
  .profile-comparison-row h3 { padding-bottom: 8px; border-bottom: 1px solid var(--border); }
  .multipath-sequence { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .tools-grid, .config-grid { grid-template-columns: minmax(0, 1fr); }
  .tool-card, .panel { min-width: 0; }
  .site-header-inner { gap: 8px; padding: 0 14px; }
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 10px;
    right: 10px;
    padding: 10px;
    border: 1px solid color-mix(in srgb, var(--media-text) 16%, transparent);
    border-radius: 12px;
    background: color-mix(in srgb, var(--media-bg) 97%, transparent);
    box-shadow: var(--media-shadow);
    flex-direction: column;
  }
  .main-nav.is-open { display: flex; }
  .main-nav .nav-link { padding: 11px 12px; font-size: 15px; }
  .nav-toggle { display: inline-flex; order: 3; min-width: 44px; min-height: 44px; }
  .site-header-inner { justify-content: space-between; }
  .conn { margin-left: auto; min-width: 0; order: 2; }
  .site-header .brand { order: 1; min-height: 44px; }
  .conn-pill { min-height: 44px; padding: 7px 10px; font-size: 12px; }
  .conn-connected { box-sizing: border-box; max-width: 100%; }
  .conn-connected .js-device-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; }

  .field input:not([type="checkbox"]):not([type="range"]),
  .field select,
  .field select.mono-input,
  .field textarea {
    min-height: 44px;
    font-size: 16px;
  }
  .field-port-tls .check,
  .btn-primary,
  .btn-secondary,
  .btn-ghost,
  .btn-danger,
  .btn-danger-ghost,
  .btn-disconnect,
  .link-btn {
    min-height: 44px;
    box-sizing: border-box;
  }
  .footer-links a {
    display: inline-flex;
    align-items: center;
  }
  .footer-links a { min-height: 32px; }
  .legal-identity > div { grid-template-columns: minmax(0, 1fr); gap: 4px; }

  .hero-frame { object-position: 64% center; }
  .hero-scrim {
    background:
      linear-gradient(90deg, rgba(4, 5, 7, .9) 0%, rgba(4, 5, 7, .45) 100%),
      linear-gradient(0deg, rgba(4, 5, 7, .96) 0%, rgba(4, 5, 7, .36) 62%, rgba(4, 5, 7, .42) 100%);
  }
  .scrolly-caption.scrolly-hero-content { padding: 126px 22px 30px; }
  .hero-content h1 {
    font-size: clamp(43px, 14vw, 62px);
    line-height: .98;
    letter-spacing: -.045em;
  }
  .hero-sub { max-width: 480px; font-size: 18px; }
  .hero-actions { margin-top: 24px; }
  .hero-cta { flex: 1; min-width: 170px; }
  .hero-proof { gap: 6px 14px; }
  .hero-proof span:not(:last-child)::after { margin-left: 14px; }
  .scrolly-inner { padding: 28px 22px 34px; }
  .scrolly-progress { top: calc(var(--header-height) + 18px); right: 22px; }
  .scrolly-caption {
    left: 22px;
    bottom: 58px;
    width: calc(100vw - 44px);
  }
  .scrolly-caption h2 { font-size: clamp(42px, 13vw, 60px); }
  .scrolly-caption > p { font-size: 15px; margin-bottom: 22px; }
  .scene-ui { width: 100%; }
  .scene-integrations { margin-top: -9px; }
  .scrolly-nav { right: 12px; }
  .scrolly-cue,
  .scrolly-skip { right: 22px; bottom: 4px; font-size: 9px; }

  .home-action-inner { padding: calc(var(--header-height) + 48px) 18px 32px; gap: 20px; }
  .home-tool-grid { grid-template-columns: 1fr; }
  .home-tool-card { min-height: 0; padding: 22px; }
  .home-resource-links { grid-template-columns: 1fr; }
  .home-resource-links a + a { border-top: 1px solid var(--border); border-left: 0; }
  .home-license-cta { align-items: stretch; flex-direction: column; gap: 20px; }
  .home-license-cta > a { justify-content: center; text-align: center; }
  .error-page { padding-top: calc(var(--header-height) + 32px); }
  .error-logo { width: 100px; height: 100px; }
  .error-logo img { width: 84px; height: 84px; }
  .error-page > .home-action-group { margin-top: 28px; }
  .docs-start { align-items: stretch; flex-direction: column; gap: 24px; padding: 22px; }
  .docs-start-actions { min-width: 0; }
  .docs-paths, .docs-link-grid, .api-map, .example-picker, .runtime-port-notes { grid-template-columns: 1fr; }
  .docs-path { min-height: 0; }
  .security-guidelines ul { grid-template-columns: 1fr; }
  .docs-step { grid-template-columns: 36px minmax(0, 1fr); gap: 10px; }
  .page-toc { padding: 0; }
  .page-toc summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 16px;
    cursor: pointer;
    list-style: none;
  }
  .page-toc summary::-webkit-details-marker { display: none; }
  .page-toc summary::after {
    content: '+';
    color: var(--accent);
    font-family: 'Instrument Sans', sans-serif;
    font-size: 18px;
    line-height: 1;
  }
  .page-toc[open] summary::after { content: '−'; }
  .page-toc nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
    padding: 0 16px 14px;
  }
  .page-toc nav strong { display: none; }
  .api-lifecycle { flex-direction: column; }
  .api-lifecycle > div { min-width: 0; }
  .api-lifecycle > div:not(:last-child)::after {
    right: auto;
    left: 50%;
    top: auto;
    bottom: -13px;
    transform: translateX(-50%) rotate(90deg);
  }
  .media-section .guide-card { min-height: 0; }
  .media-submit { align-items: flex-start; flex-direction: column; }
  .roadmap-vision { min-height: 650px; margin: 0 -6px 56px; border-radius: 18px; }
  .roadmap-vision > picture img { object-position: 70% center; }
  .roadmap-vision-scrim {
    background:
      linear-gradient(90deg, rgba(4, 5, 7, .88) 0%, rgba(4, 5, 7, .28) 100%),
      linear-gradient(0deg, rgba(4, 5, 7, .96) 0%, rgba(4, 5, 7, .44) 72%, rgba(4, 5, 7, .22) 100%);
  }
  .roadmap-vision-copy { padding: 34px 24px; }
  .roadmap-vision h1 { font-size: clamp(43px, 13vw, 60px); }
  .roadmap-vision-copy > p { font-size: 15px; }
  .roadmap-principles { gap: 7px 14px; }
  .roadmap-principles span:not(:last-child)::after { margin-left: 14px; }
  .roadmap-foundation { margin-bottom: 72px; padding: 24px; }
  .roadmap-foundation-head { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .roadmap-foundation-version { font-size: 44px; }
  .roadmap-foundation-grid { grid-template-columns: minmax(0, 1fr); }
  .roadmap-direction { margin-bottom: 72px; }
  .roadmap-section-head-wide { margin-bottom: 30px; }
  .roadmap-chapters { gap: 20px; }
  .roadmap-chapter-copy { padding: 28px 24px; }
  .roadmap-chapter-meta { margin-bottom: 38px; }
  .roadmap-chapter h3 { font-size: clamp(30px, 10vw, 40px); }
  .roadmap-chapter-media { min-height: 280px; }
  .roadmap-release-sequence { padding: 10px 24px; }
  .roadmap-release-sequence li { grid-template-columns: 52px minmax(0, 1fr); gap: 10px; }
  .roadmap-research { margin: 0 -6px 56px; padding: 30px 24px; }
  .roadmap-research-list { grid-template-columns: minmax(0, 1fr); }
  .roadmap-research-list article,
  .roadmap-research-list article:nth-child(odd),
  .roadmap-research-list article:nth-child(even) { padding: 21px 0; border-right: 0; }
  .roadmap-source { align-items: flex-start; flex-direction: column; gap: 22px; padding: 24px; }
  .roadmap-source-links { width: 100%; }
  .consent-banner { align-items: stretch; flex-direction: column; gap: 14px; left: 12px; right: 12px; bottom: 12px; }
  .consent-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .consent-actions button { width: 100%; }
  .device-live-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 480px) {
  .empty-state { padding: 32px 20px; }
  .direct-connect-manual { grid-template-columns: minmax(0, 1fr); }
  .direct-connect-manual .btn-secondary { width: 100%; }
  .mqtt-device-control { grid-template-columns: minmax(0, 1fr); }
  .mqtt-device-control .btn-primary { width: 100%; }
  .mqtt-connect-card .broker-host-control { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .mqtt-connect-card .broker-host-control select,
  .mqtt-connect-card .broker-host-control input { margin-left: 0; border-radius: 9px; }
  [data-page="tool-configure"] .field-row { grid-template-columns: minmax(0, 1fr); }
  .game-stage { margin: 0 -8px; padding: 14px; }
  .game-status { top: 10px; right: 10px; width: min(210px, calc(100% - 116px)); padding: 7px 8px 8px; }
  .game-status-head { gap: 7px; }
  .game-score { gap: 4px; }
  .game-score strong { font-size: 20px; }
  .game-status-row { gap: 6px; margin-top: 6px; padding-top: 6px; }
  .game-status-row strong { font-size: 12px; }
  .game-screen[data-phase="done"] .game-status {
    top: 45%;
    width: min(330px, calc(100% - 40px));
    padding: 12px 16px 14px;
  }
  .game-screen[data-phase="done"] .game-screen-badge { margin-bottom: 5px; }
  .game-screen[data-phase="done"] .game-score strong { font-size: clamp(44px, 14vw, 62px); }
  .game-screen[data-phase="done"] .game-status-row { display: none; }
  .game-screen[data-phase="done"] .game-play { bottom: 10px; }
  .game-screen-controls { top: 10px; left: 10px; }
  .game-screen:fullscreen .game-status,
  .game-screen:-webkit-full-screen .game-status { width: min(210px, calc(100% - 148px)); }
  .game-screen:fullscreen .game-screen-controls,
  .game-screen:-webkit-full-screen .game-screen-controls { left: 28px; }
  .device-connect-card .field-row { grid-template-columns: minmax(0, 1fr); }
  .mqtt-host-port-row { grid-template-columns: minmax(0, 1fr); }
  .device-banner-actions { margin-left: 0; width: 100%; }
  [data-page="tool-configure"] .device-banner-actions button { width: 100%; }
  .ota-details-grid { grid-template-columns: 1fr; }
  .modal-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .modal-actions button { width: 100%; }
  .matter-modal-actions { grid-template-columns: 1fr; }
  .device-motion-state { font-size: 34px; }
  .device-motion-score strong { font-size: 20px; }
  .live-controls-grid { grid-template-columns: minmax(0, 1fr); }
  .live-control-wide { grid-column: auto; }
  .live-calibration { align-items: stretch; flex-direction: column; }
  .device-live-diagnostics > summary { align-items: flex-start; flex-direction: column; gap: 4px; position: relative; }
  .device-live-diagnostics > summary small { margin-left: 0; padding-right: 24px; }
  .device-live-diagnostics > summary::after { position: absolute; right: 18px; top: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-frame-connected {
    opacity: 1;
    transition: none;
  }
  .scrolly-scene,
  .scrolly-caption,
  .scrolly-nav span,
  .scrolly-cue,
  .scrolly-skip { transition: none; }
  .scene-ui-dot,
  .pulse,
  .spinner,
  .field input.is-invalid { animation: none !important; }
}