:root {
  color-scheme: light dark;
  --bg: #151719;
  --bg-soft: #1d2022;
  --surface: #25282a;
  --surface-raised: #303436;
  --text: #f3f1eb;
  --muted: #afb1ae;
  --line: rgba(255, 255, 255, 0.11);
  --accent: #e9aa35;
  --accent-strong: #f0b33e;
  --accent-ink: #1b160d;
  --radius-card: 24px;
  --radius-control: 12px;
  --shadow: 0 34px 90px rgba(5, 7, 8, 0.46);
  --shell: min(1180px, calc(100vw - 48px));
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #d7d9d8;
    --bg-soft: #c8cbca;
    --surface: #e8eae8;
    --surface-raised: #f3f4f2;
    --text: #202324;
    --muted: #5f6463;
    --line: rgba(30, 35, 35, 0.15);
    --accent: #d8941f;
    --accent-strong: #e3a12d;
    --accent-ink: #18130a;
    --shadow: 0 34px 90px rgba(44, 50, 50, 0.2);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--bg) 91%, transparent), color-mix(in srgb, var(--bg) 97%, transparent)),
    url("assets/art/thermal-airflow.png") center top / cover fixed no-repeat,
    var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }
.shell { width: var(--shell); margin-inline: auto; }
.section { padding-block: clamp(88px, 10vw, 148px); }

.skip-link {
  position: fixed;
  left: 16px;
  top: 10px;
  z-index: 100;
  transform: translateY(-150%);
  padding: 10px 14px;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 8px;
  font-weight: 700;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(22px) saturate(145%);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
}

.nav {
  min-height: 70px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 28px;
}

.wordmark { display: inline-flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 760; letter-spacing: -0.03em; }
.wordmark-mark {
  display: grid;
  place-items: center;
  width: 32px;
  aspect-ratio: 1;
  border-radius: 9px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 850;
}
.nav-links { display: flex; align-items: center; gap: 30px; color: var(--muted); font-size: 14px; font-weight: 600; }
.nav-links a, .footer a { transition: color 180ms ease; }
.nav-links a:hover, .footer a:hover { color: var(--text); }
.nav-download { justify-self: end; padding: 9px 15px; border: 1px solid var(--line); border-radius: var(--radius-control); font-size: 14px; font-weight: 700; }

.hero {
  position: relative;
  isolation: isolate;
  min-height: min(760px, calc(100dvh - 96px));
  overflow: hidden;
  margin-block: 28px 44px;
  padding: clamp(70px, 8vw, 104px) clamp(34px, 6vw, 76px);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 30px;
  background: #171a1c;
  box-shadow: var(--shadow);
}
.eyebrow { margin: 0 0 16px; color: var(--accent); font-size: 12px; font-weight: 760; letter-spacing: 0.13em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 760px; margin-bottom: 24px; font-size: clamp(54px, 6.4vw, 94px); line-height: 0.96; letter-spacing: -0.065em; font-weight: 760; }
.hero-copy { position: relative; z-index: 3; width: min(390px, 36%); color: #f3f1eb; }
.hero-copy h1 { font-size: clamp(56px, 5.4vw, 78px); }
.hero-intro { max-width: 590px; margin-bottom: 32px; color: var(--muted); font-size: clamp(18px, 2vw, 23px); line-height: 1.45; letter-spacing: -0.02em; }
.hero-copy .hero-intro, .hero-copy .compatibility { color: #b9bcb9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 0 20px; border-radius: var(--radius-control); font-size: 15px; font-weight: 740; transition: transform 180ms ease, background 180ms ease, border-color 180ms ease; }
.button:hover { transform: translateY(-2px); }
.button:active { transform: scale(0.98); }
.button-primary { background: var(--accent); color: var(--accent-ink); }
.button-primary:hover { background: var(--accent-strong); }
.button-secondary { border: 1px solid var(--line); background: color-mix(in srgb, var(--surface) 66%, transparent); }
.hero-copy .button-secondary { border-color: rgba(255,255,255,0.19); background: rgba(32,35,36,0.7); }
.button:focus-visible, .nav a:focus-visible, .text-link:focus-visible, .footer a:focus-visible, button:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 70%, white); outline-offset: 3px; }
.compatibility { margin: 20px 0 0; color: var(--muted); font-family: "SFMono-Regular", Consolas, monospace; font-size: 11px; }

.hero-visual { position: absolute; inset: 0; z-index: 1; }
.hero-visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(16,18,19,0.97) 0%, rgba(16,18,19,0.78) 29%, rgba(16,18,19,0.12) 58%, transparent 78%), linear-gradient(0deg, rgba(13,15,16,0.32), transparent 42%); pointer-events: none; }
.airflow-art { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; object-position: center; opacity: 1; filter: saturate(0.86) contrast(1.03); }
.app-shot { position: absolute; z-index: 2; left: 36%; bottom: 42px; width: min(260px, 23%); overflow: hidden; border: 1px solid rgba(255,255,255,0.27); border-radius: 22px; background: rgba(237, 235, 229, 0.9); box-shadow: 0 32px 76px rgba(0,0,0,0.5); transform: rotate(-1.4deg); }
.app-shot-topbar { height: 36px; display: flex; align-items: center; gap: 7px; padding: 0 14px; background: rgba(255,255,255,0.72); border-bottom: 1px solid rgba(20,20,20,0.1); color: #24241f; }
.app-shot-topbar span { width: 9px; height: 9px; border-radius: 50%; background: rgba(30,30,26,0.18); }
.app-shot-topbar strong { margin-left: auto; font-size: 11px; }
.app-shot-viewport { height: 342px; overflow: hidden; }
.app-shot-viewport img { width: 100%; height: auto; }

.proof { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; padding: 26px 28px; border: 1px solid var(--line); border-radius: var(--radius-card); background: color-mix(in srgb, var(--surface) 72%, transparent); }
.proof div { padding: 4px 28px; border-right: 1px solid var(--line); }
.proof div:first-child { padding-left: 0; }
.proof div:last-child { border-right: 0; }
.proof strong, .proof span { display: block; }
.proof strong { margin-bottom: 5px; font-size: 14px; }
.proof span { color: var(--muted); font-size: 13px; }

.section-heading { max-width: 760px; margin-bottom: 54px; }
h2 { margin-bottom: 22px; font-size: clamp(38px, 5vw, 68px); line-height: 1.02; letter-spacing: -0.052em; font-weight: 730; }
.section-heading > p:last-child, .telemetry-copy > p, .safety-heading > p:last-child { max-width: 640px; color: var(--muted); font-size: 18px; }

.profile-rail { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.profile-rail article { min-height: 242px; padding: 25px 18px 28px; border-right: 1px solid var(--line); }
.profile-rail article:last-child { border-right: 0; }
.profile-rail span { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700; }
.profile-rail strong { display: block; margin: 48px 0 10px; font-size: 20px; letter-spacing: -0.03em; }
.profile-rail p { margin: 0; color: var(--muted); font-size: 14px; }
.profile-rail .profile-featured { background: var(--accent); color: var(--accent-ink); }
.profile-rail .profile-featured span, .profile-rail .profile-featured p { color: color-mix(in srgb, var(--accent-ink) 72%, transparent); }

.telemetry { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(340px, 0.85fr); align-items: center; gap: clamp(58px, 9vw, 130px); }
.context-frame { width: min(100%, 520px); margin-inline: auto; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-card); background: var(--surface); box-shadow: var(--shadow); }
.context-frame img { width: 100%; height: auto; }
.metric-list { margin: 40px 0 0; }
.metric-list div { display: grid; grid-template-columns: 110px 1fr; gap: 20px; padding: 17px 0; border-bottom: 1px solid var(--line); }
.metric-list dt { font-weight: 700; }
.metric-list dd { margin: 0; color: var(--muted); }

.control { border-top: 1px solid var(--line); }
.control-copy { max-width: 820px; }
.control-grid { display: grid; grid-template-columns: 1.3fr 0.8fr; gap: 18px; margin-top: 54px; }
.control-grid article { min-height: 260px; padding: 30px; border: 1px solid var(--line); border-radius: var(--radius-card); background: color-mix(in srgb, var(--surface) 86%, transparent); }
.control-grid article:first-child { grid-row: span 2; min-height: 538px; padding: 40px; background: linear-gradient(150deg, color-mix(in srgb, var(--accent) 18%, var(--surface)), var(--surface) 58%); }
.control-label { display: flex; justify-content: space-between; gap: 18px; font-size: 13px; }
.control-label span { color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700; }
.control-label strong { text-align: right; }
.control-grid article > p { max-width: 48ch; margin: 54px 0 0; color: var(--muted); font-size: 18px; }
.control-scale { position: relative; height: 8px; margin-top: 130px; border-radius: 8px; background: color-mix(in srgb, var(--text) 12%, transparent); }
.control-scale::before { content: ""; display: block; width: 48%; height: 100%; border-radius: inherit; background: var(--accent); }
.control-scale span { position: absolute; left: var(--position); top: 50%; width: 28px; height: 28px; transform: translate(-50%, -50%); border: 6px solid var(--surface-raised); border-radius: 50%; background: var(--accent); box-shadow: 0 8px 20px rgba(0,0,0,0.2); }
.control-meta { display: flex; justify-content: space-between; margin-top: 18px; color: var(--muted); font-size: 13px; }
.control-meta strong { color: var(--text); font-family: "SFMono-Regular", Consolas, monospace; }
.number-lockup { display: flex; align-items: baseline; gap: 10px; margin-top: 48px; }
.number-lockup strong { font-family: "SFMono-Regular", Consolas, monospace; font-size: 50px; letter-spacing: -0.06em; }
.number-lockup span { color: var(--muted); font-size: 12px; font-weight: 700; }
.countdown { display: flex; align-items: center; gap: 14px; margin-top: 46px; }
.countdown i { width: 54px; height: 54px; border: 8px solid color-mix(in srgb, var(--accent) 25%, transparent); border-top-color: var(--accent); border-radius: 50%; }
.countdown span { font-family: "SFMono-Regular", Consolas, monospace; font-size: 30px; }

.safety { display: grid; grid-template-columns: 0.8fr 1.2fr; column-gap: clamp(60px, 10vw, 140px); border-top: 1px solid var(--line); }
.safety-heading { position: sticky; top: 118px; align-self: start; }
.safety-list > div { display: grid; grid-template-columns: 180px 1fr; gap: 24px; padding: 25px 0; border-bottom: 1px solid var(--line); }
.safety-list h3 { margin: 0; font-size: 17px; }
.safety-list p { margin: 0; color: var(--muted); font-size: 14px; }
.text-link { display: inline-block; grid-column: 2; width: fit-content; margin-top: 30px; padding-bottom: 4px; border-bottom: 1px solid var(--accent); font-weight: 700; }

.install { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(60px, 10vw, 140px); align-items: center; }
.install ol { margin: 40px 0 0; padding: 0; list-style: none; }
.install li { display: grid; grid-template-columns: 100px 1fr; padding: 15px 0; border-bottom: 1px solid var(--line); }
.install li span { color: var(--muted); }
.install-panel { padding: 34px; border: 1px solid var(--line); border-radius: var(--radius-card); background: color-mix(in srgb, var(--surface) 88%, transparent); }
.install-panel > p { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 700; }
.command-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: start; margin: 20px 0 28px; padding: 18px; border-radius: var(--radius-control); background: var(--bg); }
.command-row code { overflow-wrap: anywhere; font-family: "SFMono-Regular", Consolas, monospace; font-size: 12px; color: var(--muted); }
.command-row button { border: 0; color: var(--text); background: transparent; font-size: 12px; font-weight: 700; cursor: pointer; }
.install-panel .button { width: 100%; }
.install-panel small { display: block; margin-top: 16px; color: var(--muted); line-height: 1.5; }

.faq { border-top: 1px solid var(--line); }
.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 54px 90px; }
.faq-grid article { padding-top: 20px; border-top: 1px solid var(--line); }
.faq-grid h3 { margin-bottom: 12px; font-size: 18px; }
.faq-grid p { margin-bottom: 0; color: var(--muted); }

.final-cta { min-height: 340px; display: flex; align-items: center; justify-content: space-between; gap: 44px; padding-block: 70px; border-top: 1px solid var(--line); }
.final-cta h2 { max-width: 760px; margin: 0; }
.final-cta .button { flex: 0 0 auto; }
.footer { min-height: 110px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 30px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.footer p { margin: 0; }
.footer > div:last-child { justify-self: end; display: flex; gap: 22px; }

.legal { max-width: 860px; padding-block: 110px 150px; }
.legal h1 { margin-bottom: 24px; }
.legal section { padding: 42px 0; border-top: 1px solid var(--line); }
.legal section h2 { margin-bottom: 14px; font-size: 28px; }
.legal section p { max-width: 68ch; margin-bottom: 0; color: var(--muted); font-size: 17px; }
.missing { min-height: 100dvh; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; }
.missing .wordmark { margin-bottom: 70px; }
.missing h1 { max-width: 820px; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity 700ms cubic-bezier(.16,1,.3,1), transform 700ms cubic-bezier(.16,1,.3,1); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  :root { --shell: min(100% - 36px, 760px); }
  .nav { grid-template-columns: 1fr auto; }
  .nav-links { display: none; }
  .hero { min-height: 720px; padding: 64px 42px; }
  .hero-copy { width: min(390px, 52%); }
  .app-shot { left: 46%; width: 250px; }
  .proof { grid-template-columns: 1fr; }
  .proof div, .proof div:first-child { padding: 16px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .proof div:last-child { border-bottom: 0; }
  .profile-rail { grid-template-columns: 1fr 1fr; }
  .profile-rail article { min-height: 190px; border-bottom: 1px solid var(--line); }
  .profile-rail article:last-child { grid-column: span 2; }
  .telemetry, .safety, .install { grid-template-columns: 1fr; }
  .safety-heading { position: static; }
  .text-link { grid-column: 1; }
}

@media (max-width: 680px) {
  :root { --shell: calc(100% - 28px); }
  .site-header { position: static; }
  .nav { min-height: 62px; }
  .nav-download { padding: 8px 12px; }
  .hero { min-height: 730px; margin-top: 18px; padding: 48px 26px; }
  .hero-copy { width: 100%; }
  .hero-copy h1 { font-size: clamp(50px, 15vw, 66px); }
  .hero-intro { max-width: 31ch; }
  .hero-visual::after { background: linear-gradient(180deg, rgba(16,18,19,0.98) 0%, rgba(16,18,19,0.9) 38%, rgba(16,18,19,0.18) 68%, rgba(16,18,19,0.08)); }
  .airflow-art { top: auto; left: 7%; right: auto; width: 86%; height: 56%; object-position: center bottom; }
  .app-shot { display: none; }
  .profile-rail { grid-template-columns: 1fr; }
  .profile-rail article, .profile-rail article:last-child { grid-column: auto; min-height: 165px; border-right: 0; }
  .profile-rail strong { margin-top: 28px; }
  .control-grid { grid-template-columns: 1fr; }
  .control-grid article:first-child { grid-row: auto; min-height: 440px; }
  .control-grid article { min-height: 240px; }
  .control-scale { margin-top: 90px; }
  .safety-list > div { grid-template-columns: 1fr; gap: 8px; }
  .install li { grid-template-columns: 1fr; gap: 4px; }
  .faq-grid { grid-template-columns: 1fr; gap: 28px; }
  .final-cta { align-items: flex-start; flex-direction: column; }
  .footer { grid-template-columns: 1fr; padding-block: 34px; }
  .footer > div:last-child { justify-self: start; flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (prefers-reduced-transparency: reduce) {
  .site-header { background: var(--bg); backdrop-filter: none; -webkit-backdrop-filter: none; }
}