:root {
  color-scheme: dark;
  --bg: #07080d;
  --surface: #101117;
  --text: #f4f2ed;
  --muted: #9b9da5;
  --gold: #f0a928;
  --blue: #415dff;
  --line: rgba(255, 255, 255, .14);
  --max: 1240px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Manrope, "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }

.site-header {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  height: 72px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 28px;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  background: rgba(7, 8, 13, .78);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; }
.brand-mark { width: 18px; height: 18px; border: 2px solid var(--gold); position: relative; }
.brand-mark::after { content: ""; position: absolute; width: 6px; height: 6px; right: -4px; bottom: -4px; background: var(--blue); }
nav { display: flex; gap: 28px; color: var(--muted); }
nav a:hover, nav a:focus-visible, footer a:hover { color: var(--text); }
.portfolio-link { justify-self: end; color: var(--gold); font-weight: 600; }

.hero {
  position: relative;
  min-height: min(860px, 92vh);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7,8,13,.96) 0%, rgba(7,8,13,.72) 42%, rgba(7,8,13,.12) 75%), linear-gradient(0deg, rgba(7,8,13,.8), transparent 55%); }
.hero-content {
  position: relative;
  z-index: 2;
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
  padding-top: clamp(180px, 25vh, 245px);
}
.eyebrow { margin: 0 0 18px; color: var(--gold); font-size: .78rem; font-weight: 700; letter-spacing: 0; }
h1, h2, h3, p { letter-spacing: 0; }
h1 { max-width: 760px; margin: 0; font-size: clamp(3.2rem, 7vw, 6.7rem); line-height: .98; font-weight: 600; }
.hero-copy { max-width: 660px; margin: 32px 0 38px; color: #d3d1cd; font-size: clamp(1.05rem, 1.7vw, 1.35rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0; }
.hero-actions span { padding: 10px 18px; border: 1px solid var(--line); border-right: 0; background: rgba(7,8,13,.45); }
.hero-actions span:last-child { border-right: 1px solid var(--line); }
.hero-index { position: absolute; z-index: 2; right: max(24px, calc((100vw - var(--max)) / 2)); bottom: 34px; color: var(--muted); font-size: .8rem; }

.statement { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; padding: 70px 0; display: grid; grid-template-columns: 1.4fr 1fr; gap: 60px; align-items: end; border-bottom: 1px solid var(--line); }
.statement > p { margin: 0; max-width: 800px; font-size: clamp(1.7rem, 3vw, 3rem); line-height: 1.3; }
.statement-meta { display: flex; justify-content: flex-end; gap: 22px; color: var(--muted); font-size: .9rem; }

.section { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; padding: 128px 0; }
.section-heading { display: grid; grid-template-columns: .8fr 1.7fr; gap: 40px; align-items: start; margin-bottom: 64px; }
h2 { margin: 0; font-size: clamp(2.2rem, 4.7vw, 4.6rem); line-height: 1.12; font-weight: 600; }
h3 { margin: 0; font-size: 1.25rem; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.steps li { min-height: 290px; padding: 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.steps li:first-child { border-left: 1px solid var(--line); }
.step-number, .quality-grid article > span { display: block; margin-bottom: 70px; color: var(--gold); font-size: .78rem; }
.steps p, .quality-grid p, .systems-copy > p, .platform-intro > p { color: var(--muted); }

.systems { display: grid; grid-template-columns: .82fr 1.18fr; gap: 88px; align-items: center; }
.systems-copy > p:not(.eyebrow) { max-width: 520px; }
.mode-switch { display: inline-flex; margin-top: 28px; border: 1px solid var(--line); }
.mode-switch button { min-width: 118px; padding: 11px 18px; border: 0; color: var(--muted); background: transparent; cursor: pointer; }
.mode-switch button.active { color: var(--bg); background: var(--gold); }
.device-stage { min-width: 0; }
.device { position: relative; width: 100%; aspect-ratio: 16 / 10; background: #090b12; border: 1px solid rgba(255,255,255,.22); box-shadow: 0 35px 90px rgba(0,0,0,.46); overflow: hidden; }
.device-bar { height: 8%; display: flex; align-items: center; gap: 7px; padding: 0 16px; border-bottom: 1px solid var(--line); }
.device-bar i { width: 6px; height: 6px; border-radius: 50%; background: #3b3d44; }
.desktop-layout { display: grid; grid-template-columns: 1fr .72fr .52fr; gap: 10px; height: 92%; padding: 12px; }
.desktop-layout > div { border: 1px solid var(--line); background: #0c1420; }
.input-block { padding: 16px; }
.input-block b { display: block; height: 14%; margin-bottom: 10px; border: 1px solid rgba(65,93,255,.4); background: rgba(65,93,255,.1); }
.preview-block { display: grid; place-items: center; }
.preview-block span { width: 58%; aspect-ratio: 1; border: 1px solid rgba(240,169,40,.6); transform: rotate(45deg); box-shadow: 0 0 30px rgba(240,169,40,.14); }
.queue-block { padding: 10px; }
.queue-block b { display: block; height: 20%; margin-bottom: 8px; border-left: 2px solid var(--gold); background: rgba(255,255,255,.05); }
.device.phone-device { width: 48%; margin: 0 auto; aspect-ratio: 9 / 18.5; border-radius: 28px; padding: 38px 18px 20px; }
.phone-device::before { content: ""; position: absolute; top: 12px; left: 36%; width: 28%; height: 7px; border-radius: 8px; background: #2b2d35; }
.phone-ui b { display: block; height: 44px; margin-bottom: 14px; border: 1px solid var(--line); }
.phone-ui b:first-child { height: 140px; }
.phone-ui b:last-child { margin-top: 28px; background: var(--blue); border-color: var(--blue); }
.device-caption { display: flex; justify-content: space-between; gap: 24px; margin-top: 22px; color: var(--muted); }
.device-caption strong { color: var(--text); }

.quality { border-top: 1px solid var(--line); }
.quality-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.quality-grid article { min-height: 300px; padding: 28px; background: var(--surface); border: 1px solid var(--line); }
.quality-grid article:nth-child(2) { border-top-color: var(--gold); }
.quality-grid article:nth-child(3) { border-top-color: var(--blue); }

.platforms { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; border-top: 1px solid var(--line); }
.platform-list { display: grid; grid-template-columns: 1fr 1fr; align-content: start; }
.platform-list span { padding: 18px 0; border-bottom: 1px solid var(--line); color: #d9d7d2; }
.platform-list span:nth-child(odd) { border-right: 1px solid var(--line); }
.platform-list span:nth-child(even) { padding-left: 24px; }

footer { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; padding: 54px 0 70px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: start; }
footer p { margin: 4px 0 0; color: var(--muted); }
footer a { color: var(--gold); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 820px) {
  .site-header { grid-template-columns: 1fr auto; height: 64px; padding: 0 20px; }
  .site-header nav { display: none; }
  .portfolio-link { font-size: .82rem; }
  .hero { min-height: 780px; }
  .hero > img { object-position: 66% center; }
  .hero-shade { background: linear-gradient(0deg, rgba(7,8,13,.94) 0%, rgba(7,8,13,.56) 70%, rgba(7,8,13,.2)); }
  .hero-content { width: calc(100% - 40px); padding-top: 190px; }
  h1 { font-size: clamp(3rem, 15vw, 4.8rem); }
  .hero-copy { margin-top: 24px; }
  .statement, .section-heading, .systems, .platforms { grid-template-columns: 1fr; }
  .statement { gap: 34px; }
  .statement-meta { justify-content: flex-start; flex-wrap: wrap; }
  .section { width: calc(100% - 40px); padding: 88px 0; }
  .section-heading { gap: 10px; margin-bottom: 42px; }
  .steps, .quality-grid { grid-template-columns: 1fr; }
  .steps li { min-height: 230px; border-left: 1px solid var(--line); }
  .step-number, .quality-grid article > span { margin-bottom: 46px; }
  .systems { gap: 48px; }
  .desktop-layout { grid-template-columns: 1fr .72fr; }
  .queue-block { display: none; }
  .device.phone-device { width: 64%; }
  .device-caption { flex-direction: column; gap: 3px; }
  .platforms { gap: 44px; }
  footer { width: calc(100% - 40px); flex-direction: column; gap: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}