/* =========================================================
   Skyline L-490 — landing page
   ========================================================= */
:root {
  --bg: #050608;
  --bg-2: #0b0d11;
  --bg-3: #12151b;
  --line: rgba(255, 255, 255, .09);
  --line-2: rgba(255, 255, 255, .16);
  --text: #f5f5f7;
  --muted: #9a9ca3;
  --dim: #6b6e76;
  --accent: #3b9bff;
  --accent-2: #7cc4ff;
  --signal: #ffd23f;           /* the drone's yellow LED strips */
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1240px;
  --gutter: clamp(20px, 4vw, 40px);
  --ease: cubic-bezier(.2, .7, .1, 1);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 600; letter-spacing: -.02em; line-height: 1.08; }
p { margin: 0; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- type ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 18px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before { content: ""; width: 18px; height: 1px; background: currentColor; opacity: .7; }
.display { font-size: clamp(38px, 6.2vw, 80px); font-weight: 700; letter-spacing: -.035em; line-height: 1.02; }
.lead { font-size: clamp(17px, 1.5vw, 20px); color: var(--muted); max-width: 640px; margin-top: 22px; }
.muted { color: var(--dim); }
.grad {
  background: linear-gradient(100deg, #fff 10%, var(--accent-2) 55%, var(--accent) 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-2);
}
.section-head { margin-bottom: clamp(48px, 7vw, 88px); }
.section-head.center { text-align: center; }
.section-head.center .lead { margin-left: auto; margin-right: auto; }

section { position: relative; }
section + section { border-top: 1px solid transparent; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 50px; padding: 0 26px;
  border-radius: 999px;
  font-size: 15.5px; font-weight: 500;
  border: 1px solid transparent;
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: #5aacff; }
.btn--ghost { border-color: var(--line-2); color: var(--text); background: rgba(255,255,255,.04); backdrop-filter: blur(8px); }
.btn--ghost:hover { border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.08); }
.btn--sm { height: 36px; padding: 0 16px; font-size: 13.5px; }

/* ---------- nav ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background .4s var(--ease), border-color .4s var(--ease), transform .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(5, 6, 8, .72);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-color: var(--line);
}
.nav.is-hidden { transform: translateY(-100%); }
.nav__inner {
  max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter);
  height: 64px; display: flex; align-items: center; gap: 32px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand__mark { width: 26px; height: 26px; color: var(--text); }
.brand__name { font-weight: 700; letter-spacing: .22em; font-size: 14.5px; }
.nav__links { display: flex; gap: 28px; margin-left: auto; }
.nav__links a { font-size: 13.5px; color: var(--muted); transition: color .2s; }
.nav__links a:hover, .nav__links a.is-active { color: var(--text); }
.nav__toggle { display: none; background: none; border: 0; width: 40px; height: 40px; position: relative; margin-left: auto; }
.nav__toggle span { position: absolute; left: 10px; right: 10px; height: 1.5px; background: var(--text); transition: transform .3s var(--ease), top .3s var(--ease); }
.nav__toggle span:nth-child(1) { top: 16px; }
.nav__toggle span:nth-child(2) { top: 23px; }
.nav.is-open .nav__toggle span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { top: 20px; transform: rotate(-45deg); }
.nav__sheet { display: none; }

/* ---------- hero ---------- */
.hero {
  min-height: 100svh;
  display: flex; flex-direction: column;
  padding: 104px var(--gutter) 0;
  overflow: hidden; isolation: isolate;
}
.hero__bg { position: absolute; inset: -8% -4% 0; z-index: -3; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 60%; filter: blur(14px) brightness(.38) saturate(.9); transform: scale(1.08); }
.hero__shade {
  position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(55% 45% at 50% 62%, rgba(59,155,255,.16), transparent 70%),
    linear-gradient(180deg, rgba(5,6,8,.75) 0%, rgba(5,6,8,.35) 40%, rgba(5,6,8,.6) 75%, var(--bg) 100%);
}
.hero__content { text-align: center; max-width: var(--container); margin: 0 auto; width: 100%; position: relative; z-index: 2; }
.hero__title { font-size: clamp(54px, 9vw, 128px); font-weight: 700; letter-spacing: -.05em; line-height: .92; }
.hero__title .thin { font-weight: 300; color: rgba(255,255,255,.72); }
.hero__sub {
  margin-top: 14px;
  font-size: clamp(22px, 2.6vw, 34px); font-weight: 600; letter-spacing: -.02em;
  background: linear-gradient(90deg, var(--accent-2), #fff 60%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__ctas { margin-top: 28px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero__stage { position: relative; flex: 1; display: flex; align-items: center; justify-content: center; min-height: 340px; margin-top: 8px; }
.hero__glow { position: absolute; left: 50%; top: 52%; width: min(900px, 95vw); aspect-ratio: 2 / 1; transform: translate(-50%, -50%); background: radial-gradient(closest-side, rgba(124,196,255,.22), rgba(59,155,255,.06) 60%, transparent); filter: blur(10px); }
.hero__drone { position: relative; width: min(760px, 92vw, max(380px, calc((100svh - 470px) * 1.34))); animation: float 7s ease-in-out infinite, droneIn 1.6s var(--ease) both; }
.hero__drone > img { width: 100%; height: auto; filter: drop-shadow(0 40px 40px rgba(0,0,0,.6)) brightness(1.05) contrast(1.05); }
@keyframes float { 0%, 100% { translate: 0 0; } 50% { translate: 0 -14px; } }
@keyframes droneIn { from { opacity: 0; transform: translateY(60px) scale(.94); } to { opacity: 1; transform: none; } }
.hero__floor { position: absolute; left: 50%; bottom: 4%; width: min(620px, 80vw); height: 40px; transform: translateX(-50%); background: radial-gradient(closest-side, rgba(0,0,0,.65), transparent); filter: blur(6px); }
.scan { position: absolute; left: var(--x); top: var(--y); width: 0; height: 0; z-index: -1; }
.scan i { position: absolute; left: 50%; top: 50%; width: 760px; height: 280px; margin: -140px 0 0 -380px; border: 1.5px solid rgba(124,196,255,.55); border-radius: 50%; transform: scale(.05); opacity: 0; animation: scan 4.5s cubic-bezier(.25,.6,.3,1) infinite; }
.scan i:nth-child(2) { animation-delay: 1.5s; }
.scan i:nth-child(3) { animation-delay: 3s; }
@keyframes scan { 0% { transform: scale(.05); opacity: 0; } 12% { opacity: .9; } 100% { transform: scale(1.3); opacity: 0; } }
.hero__stats {
  max-width: var(--container); width: 100%; margin: 0 auto;
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-2); position: relative; z-index: 2;
}
.stat { padding: 24px 8px 30px; text-align: center; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat__value { display: block; font-size: clamp(24px, 2.6vw, 34px); font-weight: 600; letter-spacing: -.02em; }
.stat__value b { font-weight: 600; }
.stat__label { display: block; margin-top: 4px; font-size: 13px; color: var(--muted); }

/* ---------- statement ---------- */
.statement { padding: clamp(110px, 16vw, 200px) 0 clamp(80px, 10vw, 140px); }
.statement__text {
  font-size: clamp(30px, 4.6vw, 62px); font-weight: 600; letter-spacing: -.03em; line-height: 1.12;
  max-width: 1080px;
}
.statement__text .w { color: rgba(255,255,255,.16); transition: color .5s var(--ease); }
.statement__text .w.on { color: var(--text); }
.problem-grid { margin-top: clamp(64px, 9vw, 110px); display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.problem { background: var(--bg); padding: 36px 32px 40px; }
.problem__num { font-family: var(--mono); font-size: 12px; color: var(--signal); letter-spacing: .1em; }
.problem h3 { margin: 18px 0 12px; font-size: 22px; }
.problem p { color: var(--muted); font-size: 15.5px; }

/* ---------- product reveal ---------- */
.reveal-product { padding: clamp(80px, 10vw, 140px) 0; background: radial-gradient(60% 50% at 50% 45%, rgba(59,155,255,.12), transparent 70%); }
.details { display: grid; grid-template-columns: 1.15fr 1fr; grid-template-rows: 1fr 1fr; gap: 20px; max-width: 1180px; margin: 0 auto; }
.detail { position: relative; margin: 0; border-radius: 24px; overflow: hidden; background: var(--bg-3); min-height: 280px; box-shadow: 0 40px 100px -50px rgba(59,155,255,.4); }
.detail--a { grid-row: span 2; min-height: 600px; }
.detail img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease); }
.detail:hover img { transform: scale(1.04); }
.detail::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 45%, rgba(5,6,8,.88)); }
.detail figcaption { position: absolute; left: 24px; right: 24px; bottom: 22px; z-index: 1; font-size: 14.5px; color: rgba(245,245,247,.75); max-width: 420px; }
.detail figcaption b { display: block; font-size: 20px; color: var(--text); margin-bottom: 4px; letter-spacing: -.01em; }
.feature-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 64px; }
.feature { padding: 32px; border-radius: var(--radius); background: linear-gradient(180deg, var(--bg-3), var(--bg-2)); border: 1px solid var(--line); }
.feature__icon { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: rgba(59,155,255,.12); margin-bottom: 22px; }
.feature__icon svg { width: 24px; height: 24px; fill: none; stroke: var(--accent-2); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.feature h3 { font-size: 21px; margin-bottom: 10px; }
.feature p { color: var(--muted); font-size: 15.5px; }

/* ---------- interactive 3D ---------- */
.explore { padding: clamp(80px, 10vw, 140px) 0; }
.explore__head { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 5vw, 80px); align-items: end; margin-bottom: clamp(36px, 5vw, 56px); }
.explore__head .lead { margin-top: 0; }
.explore__stage {
  position: relative; height: clamp(460px, 78vh, 760px);
  border-radius: 28px; overflow: hidden;
  border: 1px solid var(--line);
  background:
    radial-gradient(60% 55% at 50% 55%, rgba(59,155,255,.16), transparent 70%),
    radial-gradient(120% 80% at 50% 100%, #0b0f16, var(--bg-2) 60%);
  box-shadow: 0 50px 120px -60px rgba(59,155,255,.45);
}
.explore__stage::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.05) 1px, transparent 0);
  background-size: 26px 26px;
  mask-image: radial-gradient(70% 70% at 50% 60%, #000, transparent);
  -webkit-mask-image: radial-gradient(70% 70% at 50% 60%, #000, transparent);
}
.explore__stage iframe { position: relative; display: block; width: 100%; height: 100%; border: 0; background: transparent; color-scheme: dark; }
.explore__open {
  position: absolute; top: 16px; right: 16px; z-index: 2;
  display: inline-flex; align-items: center; gap: 6px; height: 36px; padding: 0 14px;
  border-radius: 999px; font-size: 13px; font-weight: 500;
  background: rgba(10,12,16,.62); border: 1px solid var(--line-2); backdrop-filter: blur(14px);
  transition: border-color .2s, background .2s;
}
.explore__open:hover { border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.08); }
.explore__open svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.explore__specs { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 28px; border-top: 1px solid var(--line-2); }
.explore__specs div { padding: 22px 8px 4px; }
.explore__specs div + div { border-left: 1px solid var(--line); padding-left: 24px; }
.explore__specs b { display: block; font-size: clamp(18px, 1.8vw, 24px); font-weight: 600; letter-spacing: -.02em; }
.explore__specs span { font-size: 13.5px; color: var(--muted); }
.explore__note { margin-top: 18px; font-size: 12.5px; color: var(--dim); }

/* ---------- film ---------- */
.film { height: 100svh; min-height: 560px; overflow: hidden; display: flex; align-items: flex-end; }
.film__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.film__shade { position: absolute; inset: 0; background: linear-gradient(180deg, var(--bg) 0%, rgba(5,6,8,.1) 22%, rgba(5,6,8,.15) 55%, rgba(5,6,8,.92) 100%), linear-gradient(90deg, rgba(5,6,8,.6), transparent 60%); }
.film__content { position: relative; padding-bottom: clamp(60px, 10vw, 120px); }
.film__content .lead { color: rgba(245,245,247,.8); }

/* ---------- tech ---------- */
.tech { padding: clamp(100px, 13vw, 170px) 0; }
.arch {
  display: grid; grid-template-columns: 1fr 70px 1fr 70px 1fr; align-items: center;
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--line); border-radius: 28px;
  background:
    linear-gradient(var(--bg-2), var(--bg-2)) padding-box,
    radial-gradient(80% 120% at 50% 0%, rgba(59,155,255,.35), transparent 60%) border-box;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.06) 1px, transparent 0);
  background-size: 22px 22px;
  background-color: var(--bg-2);
}
.arch__col { display: grid; gap: 14px; }
.arch__node { padding: 18px 20px; border-radius: var(--radius-sm); background: var(--bg-3); border: 1px solid var(--line); }
.arch__node b { display: block; font-size: 17px; margin-top: 6px; font-weight: 600; }
.arch__node small { color: var(--muted); font-size: 13.5px; }
.arch__node--core { padding: 34px 24px; text-align: center; border-color: rgba(59,155,255,.5); background: linear-gradient(180deg, rgba(59,155,255,.16), rgba(59,155,255,.04)); box-shadow: 0 0 60px -10px rgba(59,155,255,.35); }
.arch__node--core b { font-size: 22px; }
.arch__link { height: 2px; position: relative; background: var(--line-2); overflow: hidden; margin: 0 8px; }
.arch__link span { position: absolute; top: 0; left: -40%; width: 40%; height: 100%; background: linear-gradient(90deg, transparent, var(--accent-2), transparent); animation: flow 2.2s linear infinite; }
@keyframes flow { to { left: 100%; } }

.compare { display: grid; grid-template-columns: 1fr 1.4fr; gap: clamp(32px, 6vw, 80px); margin-top: clamp(80px, 10vw, 130px); align-items: start; }
.compare__intro h3 { font-size: clamp(28px, 3.2vw, 42px); letter-spacing: -.03em; }
.compare__intro p { margin-top: 16px; color: var(--muted); }
.bars { display: grid; gap: 34px; }
.bar__head { display: flex; justify-content: space-between; gap: 16px; font-size: 15px; margin-bottom: 12px; }
.bar__delta { font-family: var(--mono); font-size: 12.5px; color: var(--signal); white-space: nowrap; }
.bar__track { height: 34px; border-radius: 8px; background: rgba(255,255,255,.03); margin-top: 6px; overflow: hidden; }
.bar__fill {
  height: 100%; width: 0; border-radius: 8px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; padding: 0 12px;
  transition: width 1.4s var(--ease) .2s;
}
.bar__fill--old { background: rgba(255,255,255,.12); }
.bar__fill em { font-style: normal; font-size: 13px; font-weight: 500; white-space: nowrap; }
.bar.is-in .bar__fill { width: var(--w); }

/* ---------- apps rail ---------- */
.apps { padding: clamp(100px, 13vw, 170px) 0 clamp(80px, 10vw, 120px); background: var(--bg-2); }
.rail, .reel {
  display: flex; gap: 20px;
  overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 0 max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter)));
  scroll-padding: 0 max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter)));
  scrollbar-width: none;
}
.rail::-webkit-scrollbar, .reel::-webkit-scrollbar { display: none; }
.card {
  flex: 0 0 clamp(270px, 30vw, 380px);
  aspect-ratio: 3 / 4.2;
  border-radius: var(--radius);
  overflow: hidden; position: relative;
  scroll-snap-align: start;
  background: var(--bg-3);
}
.card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.card:hover img { transform: scale(1.06); }
.card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(5,6,8,0) 35%, rgba(5,6,8,.92) 100%); }
.card__body { position: absolute; left: 0; right: 0; bottom: 0; padding: 26px; z-index: 1; }
.card__body h3 { font-size: 24px; margin: 8px 0 8px; }
.card__body p { font-size: 14.5px; color: rgba(245,245,247,.72); }
.rail-controls { display: flex; justify-content: flex-end; gap: 10px; margin-top: 28px; }
.round-btn { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line-2); background: transparent; display: grid; place-items: center; transition: background .2s, border-color .2s; }
.round-btn:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.35); }
.round-btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- how ---------- */
.how { padding: clamp(100px, 13vw, 170px) 0; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: s; }
.step__media { aspect-ratio: 16 / 10; border-radius: var(--radius); overflow: hidden; background: var(--bg-3); border: 1px solid var(--line); margin-bottom: 26px; }
.step__media img, .step__media video { width: 100%; height: 100%; object-fit: cover; }
.step__num { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--accent); color: var(--accent-2); font-family: var(--mono); font-size: 13px; margin-bottom: 14px; }
.step h3 { font-size: 23px; margin-bottom: 10px; }
.step p { color: var(--muted); font-size: 15.5px; }

/* ---------- maps ---------- */
.maps { padding: clamp(80px, 10vw, 140px) 0; background: linear-gradient(180deg, var(--bg), #04121f 50%, var(--bg)); }
.maps__grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.map { margin: 0; grid-column: span 2; border-radius: var(--radius); overflow: hidden; position: relative; background: #000; border: 1px solid var(--line); }
.map--wide { grid-column: span 3; }
.map img { width: 100%; height: 100%; min-height: 280px; max-height: 440px; object-fit: cover; transition: transform 1.2s var(--ease); }
.map:hover img { transform: scale(1.04); }
.map figcaption { position: absolute; left: 16px; bottom: 16px; right: 16px; font-size: 13.5px; color: rgba(245,245,247,.85); background: rgba(5,6,8,.6); backdrop-filter: blur(10px); padding: 10px 14px; border-radius: 10px; width: fit-content; }

/* ---------- validation ---------- */
.validation { padding: clamp(100px, 13vw, 170px) 0; }
.case { display: grid; grid-template-columns: 1.15fr 1fr; gap: 24px; }
.case__media { position: relative; border-radius: var(--radius); overflow: hidden; background: #062038; border: 1px solid var(--line); }
.case__media img { width: 100%; height: 100%; object-fit: cover; }
.case__chip { position: absolute; left: 16px; top: 16px; font-family: var(--mono); font-size: 11.5px; letter-spacing: .08em; padding: 8px 12px; border-radius: 999px; background: rgba(5,6,8,.65); backdrop-filter: blur(8px); border: 1px solid var(--line-2); }
.case__stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.kpi { background: var(--bg-2); padding: 30px 26px; display: flex; flex-direction: column; justify-content: space-between; gap: 18px; }
.kpi__value { font-size: clamp(36px, 4vw, 54px); font-weight: 600; letter-spacing: -.04em; line-height: 1; }
.kpi__value b { font-weight: 600; }
.kpi__value small { font-size: .4em; font-weight: 500; color: var(--muted); margin-left: 4px; letter-spacing: 0; }
.kpi__label { font-size: 14px; color: var(--muted); line-height: 1.45; }
.case2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 24px; }
.case2 figure { margin: 0; }
.case2 img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--line); }
.case2 figcaption { margin-top: 14px; font-size: 14.5px; color: var(--muted); }
.footnote { margin-top: 36px; font-size: 13px; color: var(--dim); }

/* ---------- footage ---------- */
.footage { padding: clamp(100px, 13vw, 170px) 0; background: var(--bg-2); }
.reel { align-items: stretch; }
.clip { margin: 0; flex: 0 0 auto; height: clamp(420px, 60vh, 620px); border-radius: var(--radius); overflow: hidden; position: relative; scroll-snap-align: start; background: #000; }
.clip--tall { aspect-ratio: 9 / 16; }
.clip--wide { aspect-ratio: 16 / 9; }
.clip video { width: 100%; height: 100%; object-fit: cover; }
.clip figcaption { position: absolute; left: 14px; bottom: 14px; font-family: var(--mono); font-size: 11.5px; letter-spacing: .06em; padding: 8px 12px; border-radius: 999px; background: rgba(5,6,8,.6); backdrop-filter: blur(8px); }

/* ---------- specs ---------- */
.specs { padding: clamp(100px, 13vw, 170px) 0; }
.specs__layout { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(32px, 6vw, 80px); align-items: start; }
.specs__img { position: sticky; top: 100px; }
.specs__img img { width: 100%; border-radius: var(--radius); border: 1px solid var(--line); }
.specs__img p { margin-top: 14px; font-size: 14px; color: var(--muted); }
.spec-list { margin: 0; border-top: 1px solid var(--line-2); }
.spec { display: grid; grid-template-columns: 1fr 1.3fr; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.spec dt { color: var(--muted); font-size: 15px; }
.spec dd { margin: 0; font-size: 16.5px; font-weight: 500; }

/* ---------- about ---------- */
.about { padding: clamp(100px, 13vw, 170px) 0; background: var(--bg-2); }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.why { padding: 28px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--bg); }
.why h3 { font-size: 19px; margin-bottom: 10px; }
.why p { font-size: 15px; color: var(--muted); }
.timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 80px; position: relative; }
.gen { position: relative; }
.gen__img { aspect-ratio: 3 / 2; border-radius: var(--radius); background: #e9ecf1; overflow: hidden; display: grid; place-items: center; margin-bottom: 22px; opacity: .55; filter: grayscale(1); transition: opacity .4s, filter .4s; }
.gen__img img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.gen:hover .gen__img, .gen--now .gen__img { opacity: 1; filter: none; }
.gen--now .gen__img { box-shadow: 0 0 0 1px var(--accent), 0 30px 80px -30px rgba(59,155,255,.6); }
.gen__year { font-family: var(--mono); font-size: 12px; color: var(--signal); letter-spacing: .12em; text-transform: uppercase; }
.gen h4 { font-size: 20px; margin: 8px 0 6px; }
.gen p { color: var(--muted); font-size: 15px; }
.team { margin-top: 96px; display: grid; grid-template-columns: 1fr 1.2fr; border-radius: 28px; overflow: hidden; border: 1px solid var(--line); background: var(--bg); }
.team > img { width: 100%; height: 100%; max-height: 560px; object-fit: cover; object-position: 50% 60%; }
.team__text { padding: clamp(32px, 5vw, 64px); display: flex; flex-direction: column; justify-content: center; }
.team__logo { width: 160px; margin-bottom: 28px; background: #fff; padding: 12px 16px; border-radius: 12px; }
.team__text h3 { font-size: clamp(26px, 3vw, 36px); margin-bottom: 16px; }
.team__text p { color: var(--muted); }

/* ---------- faq ---------- */
.faq { padding: clamp(100px, 13vw, 170px) 0; }
.faq__inner { display: grid; grid-template-columns: 1fr 1.5fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.acc { border-top: 1px solid var(--line-2); }
.acc details { border-bottom: 1px solid var(--line); }
.acc summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 24px 0; font-size: clamp(17px, 1.5vw, 20px); font-weight: 600; letter-spacing: -.01em; transition: color .2s; }
.acc summary:hover { color: var(--accent-2); }
.acc summary::-webkit-details-marker { display: none; }
.acc summary::after { content: ""; flex: none; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--line-2); background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f7' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M12 6v12M6 12h12'/%3E%3C/svg%3E") center / 14px no-repeat; transition: transform .3s var(--ease), background-color .3s, border-color .3s; }
.acc details[open] summary::after { transform: rotate(45deg); background-color: var(--accent); border-color: var(--accent); }
.acc details p { padding: 0 50px 26px 0; color: var(--muted); font-size: 16px; }

/* ---------- cta ---------- */
.cta { padding: clamp(110px, 14vw, 180px) 0; overflow: hidden; }
.cta__bg { position: absolute; inset: 0; z-index: -1; }
.cta__bg img { width: 100%; height: 100%; object-fit: cover; opacity: .28; filter: saturate(.8); }
.cta__bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, var(--bg), rgba(5,6,8,.55) 40%, var(--bg)), linear-gradient(90deg, var(--bg) 10%, transparent 70%); }
.cta__inner { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 80px); align-items: center; position: relative; }
.contact-list { list-style: none; padding: 0; margin: 40px 0 0; display: grid; gap: 12px; }
.contact-list a { display: flex; align-items: center; gap: 16px; padding: 14px 18px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: rgba(5,6,8,.5); backdrop-filter: blur(8px); transition: border-color .2s, background .2s; max-width: 420px; }
.contact-list a:hover { border-color: rgba(59,155,255,.6); background: rgba(59,155,255,.08); }
.contact-list svg { width: 22px; height: 22px; fill: var(--accent-2); flex: none; }
.contact-list span { display: flex; flex-direction: column; font-size: 15.5px; word-break: break-word; }
.contact-list small { font-size: 12px; color: var(--muted); }
.form { padding: clamp(26px, 4vw, 40px); border-radius: 28px; background: rgba(12,14,19,.82); backdrop-filter: blur(20px); border: 1px solid var(--line-2); display: grid; gap: 16px; }
.form h3 { font-size: 24px; margin-bottom: 6px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { display: grid; gap: 7px; font-size: 13px; color: var(--muted); }
.form input, .form select, .form textarea {
  font: inherit; font-size: 15.5px; color: var(--text);
  background: rgba(255,255,255,.04); border: 1px solid var(--line-2); border-radius: 12px;
  padding: 12px 14px; width: 100%; transition: border-color .2s, background .2s;
}
.form select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239a9ca3' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 18px; padding-right: 40px; }
.form select option { background: var(--bg-3); }
.form textarea { resize: vertical; min-height: 92px; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--accent); background: rgba(59,155,255,.06); }
.form .is-invalid { border-color: #ff6b6b; }
.form__actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 4px; }
.form__note { font-size: 13.5px; color: var(--muted); min-height: 1.2em; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 64px 0 32px; }
.footer__inner { display: flex; justify-content: space-between; gap: 48px; flex-wrap: wrap; }
.footer__brand p { margin-top: 14px; color: var(--muted); font-size: 14.5px; max-width: 300px; }
.footer__cols { display: flex; gap: clamp(40px, 7vw, 96px); }
.footer__cols h5 { font-size: 12.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--dim); margin-bottom: 16px; font-weight: 500; }
.footer__cols a { display: block; font-size: 14.5px; color: var(--muted); margin-bottom: 10px; transition: color .2s; }
.footer__cols a:hover { color: var(--text); }
.footer__base { margin-top: 56px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12.5px; color: var(--dim); }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.no-js .reveal { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .nav__links { display: none; }
  .nav__cta { margin-left: auto; }
  .nav__toggle { display: block; margin-left: 4px; }
  .nav__sheet {
    display: grid; gap: 4px;
    padding: 8px var(--gutter) 24px;
    max-height: 0; overflow: hidden; opacity: 0;
    transition: max-height .45s var(--ease), opacity .3s var(--ease);
  }
  .nav__sheet a { font-size: 22px; font-weight: 600; padding: 10px 0; border-bottom: 1px solid var(--line); }
  .nav__sheet .btn { margin-top: 16px; border: 0; font-size: 16px; padding: 0 26px; }
  .nav.is-open { background: rgba(5,6,8,.96); backdrop-filter: blur(18px); }
  .nav.is-open .nav__sheet { max-height: 600px; opacity: 1; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .arch { grid-template-columns: 1fr; gap: 0; }
  .arch__link { width: 2px; height: 36px; margin: 8px auto; }
  .arch__link span { left: 0; top: -40%; width: 100%; height: 40%; background: linear-gradient(180deg, transparent, var(--accent-2), transparent); animation-name: flowY; }
  @keyframes flowY { to { top: 100%; } }
  .arch__col { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
}
@media (max-width: 860px) {
  body { font-size: 16px; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
  .faq__inner, .details, .explore__head,
  .problem-grid, .feature-row, .steps, .compare, .case, .case2, .specs__layout, .team, .cta__inner, .timeline { grid-template-columns: 1fr; }
  .maps__grid { grid-template-columns: 1fr; }
  .map, .map--wide { grid-column: auto; }
  .specs__img { position: static; }
  .detail--a { grid-row: auto; min-height: 460px; }
  .details { grid-template-rows: none; }
  .timeline { gap: 40px; }
  .team > img { max-height: 420px; }
}
@media (max-width: 560px) {
  .nav__cta { display: none; }
  .nav__toggle { margin-left: auto; }
  .hero { padding-top: 92px; }
  .scan i { width: 420px; height: 160px; margin: -80px 0 0 -210px; }
  .acc details p { padding-right: 0; }
  .explore__stage { height: 520px; border-radius: 22px; }
  .explore__open { top: 70px; right: 12px; }
  .explore__specs { grid-template-columns: 1fr 1fr; }
  .explore__specs div:nth-child(3) { border-left: 0; padding-left: 8px; }
  .hero__ctas .btn { flex: 1 1 100%; }
  .why-grid, .case__stats, .form__row { grid-template-columns: 1fr; }
  .spec { grid-template-columns: 1fr; gap: 4px; }
  .clip { height: 460px; }
  .clip--wide { aspect-ratio: auto; width: 86vw; }
  .bar__head { flex-direction: column; gap: 4px; }
  .form__actions .btn { flex: 1 1 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}