:root {
  --ink: #17181a;
  --ink-2: #3d3f43;
  --ink-3: #6c6e72;
  --line: rgba(23, 24, 26, 0.16);
  --sand: #e9e1d2;
  --head: 'Barlow Semi Condensed', 'Barlow', system-ui, sans-serif;
  --text: 'Barlow', system-ui, sans-serif;
  --mark: 'Michroma', 'Barlow', sans-serif;
  --pad: clamp(18px, 4.2vw, 64px);
  --ease: cubic-bezier(0.22, 0.8, 0.2, 1);
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; background: #e8ecec; color: var(--ink); font-family: var(--text); }
body { -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

#gl { position: fixed; inset: 0; width: 100vw; height: 100vh; display: block; outline: none; }
.grain {
  position: fixed; inset: -50%; pointer-events: none; opacity: 0.07; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.3 0 0 0 0 0.25 0 0 0 0 0.2 0 0 0 1 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 1.2s steps(6) infinite;
}
@keyframes grain { 0% { transform: translate(0, 0); } 33% { transform: translate(-3%, 2%); } 66% { transform: translate(2%, -3%); } 100% { transform: translate(0, 0); } }

.frame { position: fixed; inset: 0; pointer-events: none; }
.frame a, .frame button, .frame .progress, .frame .list li { pointer-events: auto; }

/* ------------------------------------------------------------------ top */
.top { position: absolute; top: 0; left: 0; right: 0; display: flex; align-items: center; justify-content: space-between; padding: 26px var(--pad); }
.brand { display: flex; align-items: center; gap: 16px; }
.tag { font: 600 9.5px/1 var(--text); letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-2); padding: 5px 8px 4px; border: 1px solid rgba(23, 24, 26, 0.28); border-radius: 3px; }
.logo { font-family: var(--mark); font-size: 15px; letter-spacing: 0.62em; margin-right: -0.62em; }
.models { display: flex; gap: 4px; position: absolute; left: 50%; transform: translateX(-50%); }
.models button { white-space: nowrap; font: 600 12.5px/1 var(--text); letter-spacing: 0.06em; text-transform: uppercase; padding: 9px 13px; border-radius: 4px; color: var(--ink-2); transition: background 0.3s, color 0.3s; }
.models button:hover { background: rgba(23, 24, 26, 0.06); }
.models button[aria-current='true'] { color: var(--ink); background: rgba(255, 255, 255, 0.55); box-shadow: 0 0 0 1px rgba(23,24,26,0.06) inset; }
.util { display: flex; align-items: center; gap: 26px; }
.util-link { font: 600 12.5px/1 var(--text); letter-spacing: 0.06em; text-transform: uppercase; }
.menu { width: 20px; height: 14px; display: grid; align-content: space-between; }
.menu span { display: block; height: 2px; background: var(--ink); }

/* ----------------------------------------------------------------- hero */
.hero { position: absolute; left: 0; right: 0; top: 15.5vh; text-align: center; }
.word { width: min(640px, 78vw); height: auto; overflow: visible; display: block; margin: 0 auto; }
.word text {
  font-family: var(--mark); font-size: 74px; letter-spacing: 0.14em; fill: var(--ink); stroke: var(--ink); stroke-width: 1.4;
  fill-opacity: 0; stroke-dasharray: 900; stroke-dashoffset: 900;
}
.hero.is-in .word text { animation: draw 1.6s var(--ease) 0.15s forwards, fillin 0.8s ease 1.1s forwards; }
.hero.is-out .word text { transition: opacity 0.4s; opacity: 0; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fillin { to { fill-opacity: 1; stroke-width: 0; } }
.tagline { margin: 18px 0 0; font: 600 clamp(12px, 1.15vw, 15.5px)/1.55 var(--text); letter-spacing: 0.11em; text-transform: uppercase; }
.tagline span { display: block; overflow: hidden; }
.tagline span i { display: block; font-style: normal; transform: translateY(110%); transition: transform 0.9s var(--ease); }
.hero.is-in .tagline span i { transform: none; }
.hero.is-in .tagline .l1 i { transition-delay: 0.55s; }
.hero.is-in .tagline .l2 i { transition-delay: 0.68s; }
.hero.is-out .tagline span i { transform: translateY(-110%); transition-duration: 0.45s; transition-delay: 0s; }

/* -------------------------------------------------------------- chapter */
.chapter { position: absolute; inset: 0; }
.chapter .left { position: absolute; left: calc(var(--pad) + 2.2vw); top: 22vh; width: min(340px, 30vw); }
.chapter .right { position: absolute; right: calc(var(--pad) + 2.2vw); top: 22vh; width: min(360px, 28vw); }
.num { font: 700 clamp(28px, 2.6vw, 40px)/1 var(--head); overflow: hidden; }
.num span { display: block; }
.title { margin: 22px 0 18px; font: 700 clamp(30px, 3.3vw, 50px)/0.98 var(--head); text-transform: uppercase; letter-spacing: 0.005em; }
.title span { display: block; overflow: hidden; padding-bottom: 0.04em; }
.title span i { display: block; font-style: normal; }
.body { margin: 0; font: 500 12.5px/1.65 var(--text); color: var(--ink-2); max-width: 300px; }

.specs { margin: 0; }
.specs .row { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 12px; padding: 14px 0 13px; border-bottom: 1px solid var(--line); }
.specs .row:first-child { padding-top: 0; }
.specs dt { font: 600 11px/1.3 var(--text); letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); padding-bottom: 4px; }
.specs dt small { display: block; font-weight: 500; letter-spacing: 0.04em; text-transform: none; font-size: 11px; }
.specs dd { margin: 0; text-align: right; font: 600 clamp(22px, 2vw, 30px)/1 var(--head); white-space: nowrap; }
.specs dd small { font: 600 11px/1 var(--text); letter-spacing: 0.06em; text-transform: uppercase; margin-left: 6px; color: var(--ink-2); }
.specs dd.wordy { font-size: clamp(16px, 1.4vw, 20px); white-space: normal; max-width: 220px; line-height: 1.12; }
.specs dd.wordy small { display: block; margin: 4px 0 0; }

.list { list-style: none; margin: 0; padding: 0; }
.list li { position: relative; padding: 9px 0 9px 22px; cursor: pointer; color: var(--ink-3); transition: color 0.35s; }
.list li b { display: block; font: 600 clamp(15px, 1.35vw, 19px)/1.1 var(--head); text-transform: uppercase; letter-spacing: 0.01em; }
.list li span { display: block; font: 500 12px/1.4 var(--text); max-height: 0; opacity: 0; overflow: hidden; transition: max-height 0.45s var(--ease), opacity 0.35s, margin 0.35s; }
.list li::before { content: ''; position: absolute; left: 0; top: 11px; width: 2px; height: 18px; background: var(--ink); transform: scaleY(0); transition: transform 0.4s var(--ease); }
.list li.on { color: var(--ink); }
.list li.on span { max-height: 40px; opacity: 1; margin-top: 4px; color: var(--ink-2); }
.list li.on::before { transform: scaleY(1); }

.more { display: inline-block; margin-top: 26px; font: 600 11px/1 var(--text); letter-spacing: 0.14em; text-transform: uppercase; padding-bottom: 6px; border-bottom: 2px solid var(--ink); }

/* reveal choreography: every [data-r] child slides up out of a mask */
.chapter [data-r] { transform: translateY(105%); opacity: 0; transition: transform 0.85s var(--ease), opacity 0.6s ease; }
.chapter.is-in [data-r] { transform: none; opacity: 1; }
.chapter.is-out [data-r] { transform: translateY(-60%); opacity: 0; transition-duration: 0.45s, 0.35s; transition-delay: 0s !important; }
.chapter .row[data-r], .chapter .list li[data-r], .chapter .more[data-r], .chapter .body[data-r] { transform: translateY(18px); }
.chapter.is-in .row[data-r], .chapter.is-in .list li[data-r], .chapter.is-in .more[data-r], .chapter.is-in .body[data-r] { transform: none; }
.chapter.is-out .row[data-r], .chapter.is-out .list li[data-r], .chapter.is-out .more[data-r], .chapter.is-out .body[data-r] { transform: translateY(-10px); }

/* --------------------------------------------------------------- bottom */
.bottom { position: absolute; left: 0; right: 0; bottom: 0; display: flex; align-items: center; justify-content: space-between; padding: 26px var(--pad) 30px; gap: 24px; }
.social { display: flex; gap: 22px; }
.social svg { width: 17px; height: 17px; fill: var(--ink); display: block; }
.progress { position: relative; flex: 0 1 560px; height: 13px; display: flex; gap: 0; cursor: pointer;
  background: repeating-linear-gradient(-55deg, rgba(23,24,26,0.32) 0 1px, transparent 1px 4px); }
.progress .seg { flex: 1; height: 100%; position: relative; }
.progress .seg.first::before { content: ''; position: absolute; left: 0; top: -4px; bottom: -4px; width: 1px; background: rgba(23,24,26,0.35); }
.progress .thumb { position: absolute; top: 0; bottom: 0; background: #4a4b4e; transition: left 0.9s var(--ease), width 0.9s var(--ease); pointer-events: none; }
.order { font: 600 11.5px/1 var(--text); letter-spacing: 0.16em; text-transform: uppercase; color: #fff; background: var(--ink); padding: 14px 22px; border-radius: 2px; transition: background 0.3s; }
.order:hover { background: #000; }
.foot { position: absolute; left: 0; right: 0; bottom: 8px; margin: 0; text-align: center; font: 500 10.5px/1 var(--text); letter-spacing: 0.04em; color: rgba(23,24,26,0.68); }

/* --------------------------------------------------------------- cursor */
.cursor { position: fixed; left: 0; top: 0; width: 26px; height: 26px; margin: -13px 0 0 -13px; border: 1.5px solid var(--ink); border-radius: 20px;
  pointer-events: none; transition: width 0.35s var(--ease), height 0.35s var(--ease), margin 0.35s var(--ease), opacity 0.3s; opacity: 0; z-index: 20; }
.cursor.show { opacity: 1; }
.cursor.scroll { height: 44px; margin-top: -22px; }
.cursor.down { width: 18px; height: 18px; margin: -9px 0 0 -9px; }
@media (hover: none) { .cursor { display: none; } }

.loader { position: fixed; inset: 0; display: grid; place-items: center; background: #e9ecea; z-index: 30; transition: opacity 0.9s ease 0.2s, visibility 0s 1.2s; }
.loader span { font: 600 11px/1 var(--text); letter-spacing: 0.3em; text-transform: uppercase; color: var(--ink-3); }
.loader.done { opacity: 0; visibility: hidden; }

/* --------------------------------------------------------------- narrow */
@media (max-width: 900px) {
  .models { position: static; transform: none; overflow-x: auto; max-width: 52vw; scrollbar-width: none; }
  .models button { padding: 8px 9px; font-size: 11px; }
  .util-link { display: none; }
}
@media (max-width: 760px) {
  .top { padding: 18px 16px; flex-wrap: wrap; row-gap: 10px; }
  .logo { font-size: 13px; }
  .tag { font-size: 8.5px; padding: 4px 6px 3px; }
  .models button { padding: 8px 6px; font-size: 10.5px; letter-spacing: 0.03em; }
  .models { order: 3; width: 100%; max-width: none; justify-content: space-between; }
  .hero { top: 19vh; }
  .chapter .left { left: 16px; right: 16px; top: 17vh; width: auto; }
  .chapter .right { left: 16px; right: 16px; top: auto; bottom: 96px; width: auto; }
  .title { margin: 10px 0 8px; font-size: 30px; }
  .num { font-size: 22px; }
  .body { font-size: 12px; max-width: 92%; }
  .specs .row { padding: 8px 0 7px; }
  .specs dd { font-size: 20px; }
  .list li { padding: 5px 0 5px 18px; }
  .list li span { display: none; }
  .more { display: none; }
  .bottom { padding: 14px 16px 26px; }
  .social { display: none; }
  .progress { flex: 1 1 auto; }
  .order { padding: 11px 14px; font-size: 10.5px; }
}