:root {
  --obsidian: #0f1011;
  --abyss: #090a0b;
  --graphite: #1c1c1f;
  --steel: #2a2a2e;
  --silver: #cacaca;
  --fog: #6a6b6b;
  --ash: #9f9fa0;
  --cloud: #f5f5f7;
  --pure: #ffffff;
  --line: rgba(255, 255, 255, 0.1);
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans: "Inter", system-ui, sans-serif;
  --mono: "Roboto Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--obsidian); color: var(--pure); font: 400 16px/1.5 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img, video { display: block; max-width: 100%; }
:focus-visible { outline: 1px solid var(--pure); outline-offset: 3px; border-radius: 8px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 300; color: var(--cloud); }
h1 em, h2 em { font-style: italic; }
.label, .mono { font: 500 12px/2 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--ash); }

.nav { position: fixed; top: 16px; left: 50%; transform: translateX(-50%); z-index: 20; width: min(1200px, calc(100% - 32px)); display: flex; align-items: center; gap: 12px; padding: 10px 12px 10px 16px; border-radius: 14px; background: rgba(15, 16, 17, 0.45); border: 1px solid var(--line); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--serif); font-size: 24px; color: var(--cloud); }
.brand img { border-radius: 7px; }
.links { display: flex; gap: 6px; margin-left: auto; }
.ghost { padding: 7px 12px; border-radius: 8px; border: 1px solid transparent; font-size: 14px; color: var(--ash); transition: color .2s ease, border-color .2s ease; }
.ghost:hover { color: var(--pure); border-color: var(--line); }

.cta { display: inline-flex; align-items: center; gap: 10px; padding: 13px 22px; border-radius: 8px; background: var(--pure); color: #000; font-size: 16px; font-weight: 500; transition: background .2s ease; }
.cta:hover { background: #e4e4e6; }
.cta-sm { padding: 9px 14px; font-size: 14px; }
.cta-dark { background: #000; color: var(--pure); }
.cta-dark:hover { background: #1a1a1c; }

.hero { position: relative; min-height: 100svh; display: grid; place-items: center; overflow: hidden; text-align: center; }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(rgba(15, 16, 17, 0.55), rgba(15, 16, 17, 0.45) 45%, var(--obsidian) 100%); }
.hero-inner { position: relative; padding: 120px 16px 80px; display: flex; flex-direction: column; align-items: center; }
.pill { padding: 6px 22px; border-radius: 999px; background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.15); font: 500 12px/2 var(--mono); text-transform: uppercase; letter-spacing: 0.06em; color: #fafafa; transition: background .2s ease; }
.pill:hover { background: rgba(255, 255, 255, 0.2); }
.hero h1 { margin-top: 28px; font-size: clamp(64px, 11vw, 150px); line-height: 0.9; letter-spacing: -0.01em; }
.sub { margin-top: 22px; font-size: 20px; font-weight: 300; color: var(--cloud); }
.actions { margin-top: 36px; }
.hero .mono { margin-top: 14px; }
.reveal { animation: reveal 1.6s cubic-bezier(.455, .03, .515, .955) both; }
@keyframes reveal { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

section:not(.hero) { width: min(1200px, calc(100% - 32px)); margin: 0 auto; padding: 120px 0 0; text-align: center; }
section h2 { margin-top: 8px; font-size: clamp(44px, 7vw, 88px); line-height: 0.95; }

.sky { position: relative; margin-top: 48px; border-radius: 30px; overflow: hidden; background: var(--graphite); }
.sky img { width: 100%; height: auto; aspect-ratio: 16 / 10; object-fit: cover; transition: opacity .35s ease; }
.sky img.fade { opacity: 0.25; }
.chips { position: absolute; left: 50%; bottom: 20px; transform: translateX(-50%); display: flex; gap: 6px; padding: 6px; border-radius: 999px; background: rgba(15, 16, 17, 0.55); border: 1px solid var(--line); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); max-width: calc(100% - 24px); overflow-x: auto; }
.chips button { flex: none; padding: 8px 16px; border-radius: 999px; border: 0; background: transparent; color: var(--ash); font: 400 14px var(--sans); cursor: pointer; transition: background .2s ease, color .2s ease; }
.chips button:hover { color: var(--pure); }
.chips button[aria-selected="true"] { background: var(--pure); color: #000; }

.grid { margin-top: 48px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; text-align: left; }
.tile { position: relative; display: flex; flex-direction: column; border-radius: 30px; overflow: hidden; background: var(--graphite); }
.tile-wide { grid-column: span 2; }
.tile video, .tile img { width: 100%; height: 320px; object-fit: cover; background: #000; }
.tile-text { padding: 28px 32px 32px; }
.tile h3 { margin-top: 2px; font-size: 38px; line-height: 1; }
.tile ul { list-style: none; margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.tile li { padding: 5px 12px; border-radius: 999px; border: 1px solid var(--line); font-size: 14px; color: var(--ash); }
.tile-silver { background: var(--silver); justify-content: flex-end; }
.tile-silver h3 { color: #000; }
.tile-silver .label { color: #4a4a4c; }
.tile-silver li { color: #111; border-color: rgba(0, 0, 0, 0.18); }

.changes { list-style: none; margin: 40px auto 0; max-width: 720px; display: grid; gap: 1px; background: var(--line); border-radius: 16px; overflow: hidden; text-align: left; }
.changes li { padding: 18px 24px; background: var(--obsidian); color: var(--cloud); font-weight: 300; font-size: 17px; }
.changes .muted { color: var(--fog); }

.qa { margin: 40px auto 0; max-width: 720px; text-align: left; border-top: 1px solid var(--line); }
.qa details { border-bottom: 1px solid var(--line); }
.qa summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 16px; padding: 22px 4px; font-size: 18px; font-weight: 300; color: var(--cloud); }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: "+"; font-family: var(--mono); color: var(--ash); transition: transform .2s ease; }
.qa details[open] summary::after { transform: rotate(45deg); }
.qa p { padding: 0 4px 24px; color: var(--ash); }

.download { padding-bottom: 120px !important; }
.download-card { display: flex; flex-direction: column; align-items: center; gap: 28px; padding: 90px 24px; border-radius: 30px; background: var(--silver); }
.download-card h2 { color: #000; margin: 0; }
.download-card .mono { color: #4a4a4c; margin-top: -14px; }

.foot { width: min(1200px, calc(100% - 32px)); margin: 0 auto; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding: 32px 0 40px; border-top: 1px solid var(--line); font-size: 13px; color: var(--fog); }
.foot .mono { color: var(--fog); }

@media (max-width: 900px) {
  .links { display: none; }
  .nav .cta-sm { margin-left: auto; }
  .grid { grid-template-columns: 1fr; }
  .tile-wide { grid-column: auto; }
  section:not(.hero) { padding-top: 88px; }
  .tile-text { padding: 24px; }
  .tile video, .tile img { height: 220px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { animation: none; }
  * { transition: none !important; }
}