/* RAY · raydivers.com
   Apple's layout and rhythm, RAY's type, colour and voice.
   Tokens follow ray-brand/brand/colour/tokens.css and brand/docs/guideline.md. */

:root{
  /* the brand side: light, on Daylight */
  --day:#F2F6F5; --card:#FFFFFF; --hair:#DCE5E3;
  --ink:#031419; --ink-soft:#0E3A44; --grey:#55666A;
  --reef-deep:#0E9C91;           /* the wave, on light grounds. Never for text */
  --deep-orange:#A8360A;         /* orange text on light grounds */
  /* the product side: in the water */
  --light:#E4EEE9; --muted:#9FC2BE; --tick:#7FA6A2;
  --panel:rgba(3,20,25,.58); --panel-line:rgba(228,238,233,.14);
  --reef:#1FD1C1;                /* the wave and focus, on dark grounds */
  --sand:#E3C98F;                /* a measurement, and nothing else */
  --smb:#FF6A2B;                 /* one action per screen */
  --w0:#8EE3DA; --w5:#3FBFC4; --w15:#1A86A6; --w30:#0D5476; --w45:#07304A; --w62:#031419;
  /* type */
  --display:"Alexandria","IBM Plex Sans Arabic",system-ui,sans-serif;
  --body:"IBM Plex Sans","IBM Plex Sans Arabic",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  /* rhythm */
  --nav-h:48px; --gutter:16px; --max:1280px; --tile-gap:12px; --radius:22px;
  /* strong curves, after Emil Kowalski's animation rules in .claude/skills/animate: ease-out to enter or leave, ease-in-out to move */
  --ease-out:cubic-bezier(0.23,1,0.32,1); --ease-in-out:cubic-bezier(0.77,0,0.175,1); --ease:var(--ease-out);
  color-scheme:light;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--day);color:var(--ink);font:400 17px/1.55 var(--body);overflow-x:hidden}
html{-webkit-tap-highlight-color:transparent}
a,button{touch-action:manipulation}
button{-webkit-user-select:none;user-select:none}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--display);font-weight:300;margin:0;letter-spacing:-.01em;line-height:1.08}
.h-xl,.h-l{letter-spacing:-.02em;line-height:1.02}
.h-s,h3{letter-spacing:0}
p{margin:0}
[dir=rtl] h1,[dir=rtl] h2,[dir=rtl] h3{letter-spacing:0}

/* language: one page, both languages. The other language is hidden, never removed. */
[data-l]{display:none}
html[lang=en] [data-l=en],html[lang=ar] [data-l=ar]{display:inline}
html[lang=en] p[data-l=en],html[lang=ar] p[data-l=ar],
html[lang=en] div[data-l=en],html[lang=ar] div[data-l=ar],
html[lang=en] li[data-l=en],html[lang=ar] li[data-l=ar]{display:block}
.num{font-variant-numeric:tabular-nums;direction:ltr;unicode-bidi:isolate}

/* ---------- global nav: thin, translucent, blurred ---------- */
.nav{position:sticky;top:0;z-index:50;height:var(--nav-h);background:rgba(242,246,245,.72);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(3,20,25,.06);box-shadow:inset 0 1px 0 rgba(255,255,255,.5)}
@media (prefers-reduced-transparency:reduce){.nav,.local,.nav[data-open]{background:var(--day);-webkit-backdrop-filter:none;backdrop-filter:none}}
.nav .in{max-width:var(--max);margin-inline:auto;height:100%;padding-inline:var(--gutter);display:flex;align-items:center;gap:28px}
.nav .mark{display:flex;align-items:center;gap:9px;margin-inline-end:auto;font:400 17px/1 var(--display);color:var(--ink)}
.nav .mark svg{width:26px;height:26px}
[dir=rtl] .nav .mark svg{transform:scaleX(-1)}
.nav a.link{font:400 13px/1 var(--body);color:var(--ink);opacity:.82;padding:6px 0;transition:opacity 150ms var(--ease-out)}
.nav a.link[aria-current=page]{opacity:1}
@media (hover:hover) and (pointer:fine){.nav a.link:hover,.nav .lang:hover{opacity:1}}
.nav .lang{font:400 13px/1 var(--body);color:var(--ink);background:none;border:0;padding:6px 0;cursor:pointer;opacity:.82}
.nav .menu{display:none}
@media (max-width:760px){
  .nav .in{gap:18px}
  .nav a.link{display:none}
  .nav .menu{display:block;background:none;border:0;padding:6px;cursor:pointer;color:var(--ink)}
  .nav[data-open] a.link{display:block}
  .nav[data-open] .in{flex-wrap:wrap;height:auto;padding-bottom:14px}
  .nav[data-open] .in > :not(.link){height:var(--nav-h);display:flex;align-items:center}
  .nav[data-open]{height:auto;background:rgba(242,246,245,.96)}
  .nav[data-open] a.link{order:10;width:100%;font-size:22px;font-family:var(--display);font-weight:300;padding:8px 0;border-top:1px solid rgba(3,20,25,.08)}
}

/* local nav: the page name and one action, Apple style */
.local{position:sticky;top:var(--nav-h);z-index:40;background:rgba(242,246,245,.82);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid rgba(3,20,25,.06)}
.local .in{max-width:var(--max);margin-inline:auto;padding:10px var(--gutter);display:flex;align-items:center;gap:22px}
.local .name{font:300 21px/1 var(--display);margin-inline-end:auto}
.local a.link{font:400 12px/1 var(--body);opacity:.8;white-space:nowrap}
@media (hover:hover) and (pointer:fine){.local a.link:hover{opacity:1}}
@media (max-width:760px){.local a.link:not(.btn){display:none}}

/* ---------- buttons and links ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font:400 14px/1 var(--body);padding:11px 18px;border-radius:999px;background:var(--ink);color:var(--light);transition:transform 160ms var(--ease-out),background 160ms var(--ease-out);white-space:nowrap}
.btn:active{transform:scale(.97)}
@media (hover:hover) and (pointer:fine){.btn:hover{background:var(--ink-soft)}}
.btn .dot{width:8px;height:8px;border-radius:50%;background:var(--smb);flex:none}
.btn.small{padding:7px 13px;font-size:12px}
.more{display:inline-flex;align-items:center;gap:4px;font:400 15px/1 var(--body);color:var(--ink);border-bottom:1px solid transparent;transition:border-color 150ms var(--ease-out)}
@media (hover:hover) and (pointer:fine){.more:hover{border-bottom-color:var(--ink)}}
.more::after{content:"›";font-family:var(--display);font-size:1.25em;line-height:0;transform:translateY(-1px)}
[dir=rtl] .more::after{content:"‹"}
.on-dark .more{color:var(--light)}
@media (hover:hover) and (pointer:fine){.on-dark .more:hover{border-bottom-color:var(--light)}}

/* ---------- layout ---------- */
.wrap{max-width:var(--max);margin-inline:auto;padding-inline:var(--gutter)}
.narrow{max-width:760px;margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:96px}
@media (max-width:760px){.section{padding-block:64px}}
.eyebrow{font:500 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--grey)}
[dir=rtl] .eyebrow{letter-spacing:0;font-family:var(--body);font-size:13px}
.h-xl{font-size:clamp(44px,7.4vw,88px)}
.h-l{font-size:clamp(36px,5.2vw,64px)}
.h-m{font-size:clamp(28px,3.6vw,44px)}
.h-s{font-size:clamp(22px,2.4vw,28px)}
.sub{font:300 clamp(19px,2.2vw,26px)/1.3 var(--display);color:var(--ink-soft);margin-top:12px}
.on-dark .sub{color:var(--muted)}
.lede{font-size:19px;line-height:1.6;color:var(--ink-soft);max-width:60ch}
.lede.center{margin-inline:auto}
.center{text-align:center}
.center .lede{margin-inline:auto}
.actions{display:flex;gap:26px;align-items:center;flex-wrap:wrap;margin-top:28px}
.center .actions{justify-content:center}
.on-dark{color:var(--light)}
.on-dark .lede{color:var(--muted)}
.on-dark .eyebrow{color:var(--muted)}

/* ---------- home hero: full height, a window into the water ---------- */
.hero{position:relative;min-height:calc(100svh - var(--nav-h));display:grid;align-items:start;overflow:hidden;background:var(--day);color:var(--light);border-radius:0}
.hero .bg{position:absolute;inset:0}
.hero .bg img{width:100%;height:100%;object-fit:cover;object-position:center 45%}
/* the photo darkens under the message and dissolves into the page at its foot, so it never reads as a block */
.hero .bg::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,20,25,.62) 0%,rgba(3,20,25,.28) 38%,rgba(3,20,25,0) 60%)}
.hero .bg::after{content:"";position:absolute;inset:auto 0 0 0;height:34%;background:linear-gradient(180deg,rgba(242,246,245,0),var(--day))}
.hero.in-water{background:var(--w62)}
/* the home hero dissolves into the surface water, where the descent begins */
.hero.to-surface{background:var(--w0)}
.hero.to-surface .bg::after{background:linear-gradient(180deg,rgba(142,227,218,0),var(--w0))}
.hero.in-water .bg::after{background:linear-gradient(180deg,rgba(3,20,25,0),var(--w62))}
.hero .copy{position:relative;padding:clamp(56px,9vh,110px) var(--gutter) 40px;max-width:var(--max);margin-inline:auto;width:100%;text-align:center;display:grid;justify-items:center}
.hero h1{max-width:14ch}
.hero .sub{color:var(--light);opacity:.88;max-width:48ch}
.hero .actions{justify-content:center}
.hero .scale{position:absolute;inset-inline-end:var(--gutter);bottom:72px;font:500 11px/1 var(--mono);color:var(--muted);letter-spacing:.08em;display:grid;gap:6px;justify-items:end}
[dir=rtl] .hero .scale{justify-items:start}
.hero .scale i{display:block;width:1px;height:72px;background:var(--light);opacity:.5}
@media (max-width:760px){.hero .scale{display:none}.hero .copy{padding-bottom:56px}}

/* ---------- tiles: one idea each, two up ---------- */
.chapter{position:relative;overflow:hidden;text-align:center;background:var(--day);color:var(--ink)}
.chapter .copy{position:relative;z-index:2;max-width:760px;margin-inline:auto;padding:88px var(--gutter) 0}
.chapter h2{font-size:clamp(36px,5.2vw,64px)}
.chapter .sub{margin-top:12px}
.chapter .actions{margin-top:22px;justify-content:center}
.chapter .bleed{position:relative;margin-top:28px;height:clamp(360px,62vh,720px)}
.chapter .bleed img{width:100%;height:100%;object-fit:cover;-webkit-mask-image:linear-gradient(180deg,transparent 0%,#000 22%,#000 78%,transparent 100%);mask-image:linear-gradient(180deg,transparent 0%,#000 22%,#000 78%,transparent 100%)}
.chapter.water{background:linear-gradient(180deg,var(--w15),var(--w45));color:var(--light)}
.chapter.water .sub{color:var(--muted)}
.chapter.abyss{background:var(--ink);color:var(--light)}
.chapter.abyss .sub{color:var(--muted)}
.chapter.no-art{padding-bottom:88px}
.chapter + .chapter{margin-top:0}
@media (max-width:760px){.chapter .copy{padding-top:64px}.chapter .bleed{height:52vh;margin-top:18px}}
.tiles{display:grid;gap:var(--tile-gap);grid-template-columns:repeat(2,minmax(0,1fr));padding-inline:var(--tile-gap);max-width:calc(var(--max) + 2*var(--tile-gap));margin-inline:auto}
.tiles.one{grid-template-columns:1fr}
@media (max-width:760px){.tiles{grid-template-columns:1fr}}
.tile{position:relative;overflow:hidden;border-radius:var(--radius);background:var(--card);min-height:520px;display:grid;grid-template-rows:auto 1fr;text-align:center;isolation:isolate;transition:transform 200ms var(--ease-out)}
a.tile:active{transform:scale(.99)}
.tile.wide{grid-column:1 / -1;min-height:620px}
.tile .copy{padding:52px 24px 0;position:relative;z-index:2}
.tile .copy h2{font-size:clamp(32px,3.2vw,44px)}
.tile .copy .sub{font-size:clamp(17px,1.6vw,22px);margin-top:8px}
.tile .copy .actions{margin-top:18px;justify-content:center}
.tile .art{position:relative;min-height:260px}
.tile .art img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.tile.water{color:var(--light);background:linear-gradient(180deg,var(--w5),var(--w30) 55%,var(--w62))}
.tile.water .sub{color:var(--muted)}
.tile.water .art::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,var(--w15) 0%,rgba(13,84,118,0) 40%)}
.tile.abyss{background:var(--ink);color:var(--light)}
.tile.abyss .sub{color:var(--muted)}
.tile .label{position:absolute;inset-inline-start:18px;bottom:16px;z-index:2;font:500 10px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);opacity:.8}
[dir=rtl] .tile .label{letter-spacing:0;font-family:var(--body);font-size:12px}
@media (max-width:760px){.tile{min-height:460px}.tile.wide{min-height:520px}}

/* the ruled depth scale, on light grounds: confirmed, so ruled */
.scale-rule{display:grid;gap:8px;max-width:420px;margin:28px auto 0;font:500 11px/1 var(--mono);color:var(--grey);letter-spacing:.08em}
.scale-rule .bar{position:relative;height:14px;border-bottom:1px solid var(--ink)}
.scale-rule .bar i{position:absolute;bottom:-1px;height:5px;background:var(--sand)}
.scale-rule .bar b{position:absolute;bottom:-1px;width:1px;height:6px;background:var(--ink)}
.scale-rule .ends{display:flex;justify-content:space-between;direction:ltr}

/* ---------- card rows: scroll sideways, like Apple's galleries ---------- */
.row-head{display:flex;align-items:end;justify-content:space-between;gap:16px 24px;margin-bottom:28px;flex-wrap:wrap}
.row-head h2{font-size:clamp(30px,3.4vw,44px)}
.row-head .more{margin-bottom:6px}
.row{display:grid;grid-auto-flow:column;grid-auto-columns:min(78vw,340px);gap:var(--tile-gap);overflow-x:auto;scroll-snap-type:x mandatory;padding:4px var(--gutter) 20px;margin-inline:calc(-1*var(--gutter));scrollbar-width:none;-webkit-overflow-scrolling:touch}
.row::-webkit-scrollbar{display:none}
.row > *{scroll-snap-align:start}
.row.pad-end::after{content:"";width:1px}

/* a wreck card sits in the water of its own depth */
.wcard{position:relative;border-radius:18px;padding:22px 20px 20px;min-height:300px;display:grid;grid-template-rows:auto 1fr auto;gap:14px;color:var(--light);border:1px solid var(--panel-line);transition:transform 200ms var(--ease-out),border-color 150ms var(--ease-out)}
.wcard:active{transform:scale(.985)}
@media (hover:hover) and (pointer:fine){.wcard:hover{transform:translateY(-4px);border-color:rgba(228,238,233,.3)}}
.wcard .place{padding-inline-end:84px;font:500 10.5px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
[dir=rtl] .wcard .place{padding-inline-end:84px;letter-spacing:0;font-family:var(--body);font-size:12px;text-transform:none}
.wcard h3{font-size:26px;margin-top:6px}
.wcard p{font-size:14px;line-height:1.5;color:var(--light);opacity:.86}
.wcard .meta{display:flex;gap:18px;font:500 11px/1 var(--mono);letter-spacing:.08em;color:var(--muted)}
.wcard .meta b{display:block;font:300 20px/1 var(--display);color:var(--light);letter-spacing:0;margin-top:5px}
.wcard .meta b.sand{color:var(--sand)}
[dir=rtl] .wcard .meta{letter-spacing:0;font-family:var(--body);font-size:12px}
.wcard .gauge{position:relative;height:3px;background:rgba(228,238,233,.16);border-radius:2px;overflow:hidden}
.wcard .gauge i{position:absolute;top:0;bottom:0;background:var(--sand);border-radius:2px}
.wcard .ctry{position:absolute;inset-inline-end:16px;top:18px;font:500 10px/1 var(--mono);letter-spacing:.12em;color:var(--muted);opacity:.85}
[dir=rtl] .wcard .ctry{letter-spacing:0;font-family:var(--body);font-size:11px}

/* a plain light card for sites, seasons, partners */
.card{border-radius:18px;background:var(--card);padding:26px 24px;display:grid;gap:10px;align-content:start;min-height:220px;border:1px solid var(--hair)}
.card h3{font-size:24px}
.card p{font-size:15px;color:var(--ink-soft);line-height:1.55}
.card .k{font:500 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--grey)}
[dir=rtl] .card .k{letter-spacing:0;font-family:var(--body);font-size:12px;text-transform:none}
.grid-3{display:grid;gap:var(--tile-gap);grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2{display:grid;gap:var(--tile-gap);grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:900px){.grid-3{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.grid-3,.grid-2{grid-template-columns:1fr}}

/* ---------- feature rows: text beside an image ---------- */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.feature.flip > .art{order:-1}
.feature .art{aspect-ratio:4/3}
.feature .art img{width:100%;height:100%;object-fit:cover;-webkit-mask-image:radial-gradient(ellipse 70% 70% at 50% 50%,#000 55%,transparent 100%);mask-image:radial-gradient(ellipse 70% 70% at 50% 50%,#000 55%,transparent 100%)}
.feature h2{font-size:clamp(30px,3.4vw,46px)}
.feature .lede{margin-top:14px;font-size:17px}
@media (max-width:860px){.feature{grid-template-columns:1fr;gap:24px}.feature.flip > .art{order:0}}

/* ---------- the scroll story: a sticky stage whose picture changes ---------- */
.story{position:relative}
.story .stage{position:sticky;top:var(--nav-h);height:calc(100svh - var(--nav-h));overflow:hidden;background:var(--ink);color:var(--light)}
.story .stage .frame{position:absolute;inset:0;opacity:0;transition:opacity 500ms var(--ease-out)}
.story .stage .frame.on{opacity:1}
.story .stage .frame img{width:100%;height:100%;object-fit:cover}
.story .stage .frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,var(--day) 0%,rgba(242,246,245,0) 14%,rgba(3,20,25,.35) 70%,rgba(3,20,25,.7) 100%)}
.story .stage .tag{position:absolute;inset-inline-start:22px;bottom:20px;z-index:2;font:500 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
[dir=rtl] .story .stage .tag{letter-spacing:0;font-family:var(--body);font-size:12px;text-transform:none}
.story .stage .water{position:absolute;inset:0}
.story .steps{position:relative;z-index:2;margin-top:calc(-100svh + var(--nav-h))}
.story .step{min-height:100svh;display:grid;align-items:center;padding:0 var(--gutter)}
.story .step .box{max-width:440px;background:rgba(242,246,245,.92);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-radius:18px;padding:28px 26px;margin-inline-start:clamp(16px,6vw,96px);box-shadow:0 10px 40px rgba(3,20,25,.18)}
.story .step h3{font-size:30px;margin-bottom:10px}
.story .step p{font-size:16px;color:var(--ink-soft);line-height:1.55}
.story .step .line{height:1px;background:var(--ink);margin:12px 0 6px;max-width:120px}
.story .step .brush{height:9px;max-width:120px;margin:12px 0 6px;background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 9'><path d='M1 6 C20 2 30 8 50 5 S85 1 119 4' fill='none' stroke='%230E9C91' stroke-width='3.2' stroke-linecap='round'/></svg>") no-repeat left/contain}
@media (max-width:760px){.story .step .box{margin-inline:0;max-width:none}}

/* ---------- reveal on scroll ---------- */
.rv{opacity:0;transform:translateY(16px);transition:opacity 600ms var(--ease-out),transform 600ms var(--ease-out)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:60ms}.rv.d2{transition-delay:120ms}.rv.d3{transition-delay:180ms}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .wcard,.btn{transition:none}
  .story .stage .frame{transition:none}
}

/* ---------- footnotes and footer ---------- */
.notes{padding:40px var(--gutter) 0;max-width:var(--max);margin-inline:auto}
.notes ol{margin:0;padding-inline-start:18px;font-size:12px;line-height:1.6;color:var(--grey);columns:2;column-gap:40px}
.notes li{break-inside:avoid;margin-bottom:6px}
@media (max-width:760px){.notes ol{columns:1}}
.notes a{color:var(--ink-soft);text-decoration:underline;text-decoration-color:var(--hair)}
.foot{margin-top:48px;background:#E9EFED;border-top:1px solid var(--hair);color:var(--grey);font-size:12px}
.foot .in{max-width:var(--max);margin-inline:auto;padding:36px var(--gutter) 28px}
.foot .cols{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding-bottom:28px;border-bottom:1px solid var(--hair)}
.foot .cols h4{font:400 12px/1 var(--body);color:var(--ink);margin-bottom:12px}
.foot .cols a{display:block;padding:4px 0;color:var(--grey)}
@media (hover:hover) and (pointer:fine){.foot .cols a:hover{color:var(--ink)}}
@media (max-width:760px){.foot .cols{grid-template-columns:1fr 1fr}}
.foot .legal{display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;padding-top:18px}
.foot .legal .copy{margin-inline-end:auto}
.foot .legal button{background:none;border:0;padding:0;color:var(--grey);cursor:pointer;font:inherit;text-decoration:underline;text-decoration-color:var(--hair)}
.foot .mark{display:flex;align-items:center;gap:8px;font:400 14px/1 var(--display);color:var(--ink);margin-bottom:22px}
.foot .mark svg{width:22px;height:22px}
[dir=rtl] .foot .mark svg{transform:scaleX(-1)}

/* ---------- small helpers ---------- */
.rec{font:500 10px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);opacity:.85}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.pill-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.pill-list span{font:400 13px/1 var(--body);padding:8px 13px;border-radius:999px;border:1px solid var(--hair);background:var(--card);color:var(--ink-soft)}
.band{background:var(--card);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.quote{font:300 clamp(24px,3vw,36px)/1.3 var(--display);color:var(--ink);max-width:30ch;margin-inline:auto}
.quote small{display:block;font:500 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--grey);margin-top:18px}
[dir=rtl] .quote small{letter-spacing:0;font-family:var(--body);font-size:12px}

/* ---------- the descent: a sticky stage whose water darkens as you scroll ---------- */
.descent{position:relative;height:500svh}
.descent .surface{position:absolute;inset:0;z-index:2;display:grid;align-items:start;justify-items:center;text-align:center;padding:clamp(56px,10vh,120px) var(--gutter) 0;color:var(--ink);transition:opacity 320ms var(--ease-out),transform 320ms var(--ease-out)}
.descent .surface .copy{display:grid;justify-items:center;max-width:var(--max)}
.descent .surface .eyebrow{color:var(--ink-soft)}
.descent .surface h1{max-width:14ch}
.descent .surface .sub{max-width:48ch;color:var(--ink-soft)}
.descent .surface .actions{justify-content:center}
.descent .stage:not(.at-surface) .surface{opacity:0;transform:translateY(-24px);pointer-events:none}
.descent .stage > .in{transition:opacity 320ms var(--ease-out),transform 320ms var(--ease-out)}
.descent .stage.at-surface > .in{opacity:0;transform:translateY(24px);pointer-events:none}
.descent .stage{position:sticky;top:var(--nav-h);height:calc(100svh - var(--nav-h));overflow:hidden;color:var(--light);background:var(--w0)}
.descent .stage > .in{position:relative;max-width:var(--max);margin-inline:auto;height:100%;padding:0 var(--gutter);display:grid;grid-template-columns:1fr auto;align-items:center;gap:32px}
.descent .big{font:300 clamp(96px,22vw,260px)/.9 var(--display);letter-spacing:-.03em;font-variant-numeric:tabular-nums;direction:ltr;unicode-bidi:isolate}
.descent .big small{font-size:.28em;letter-spacing:0;margin-inline-start:.1em;color:var(--muted)}
[dir=rtl] .descent .big{letter-spacing:0}
.descent .facts{position:relative;min-height:9em;margin-top:18px;max-width:34ch}
.descent .fact{position:absolute;inset-inline-start:0;top:0;opacity:0;transform:translateY(10px);transition:opacity 300ms var(--ease-out),transform 300ms var(--ease-out)}
.descent .fact.on{opacity:1;transform:none}
.descent .fact h3{font-size:clamp(24px,3vw,36px)}
.descent .fact p{margin-top:10px;font-size:17px;color:var(--muted);line-height:1.5}
.descent .fact .swatch{display:inline-flex;gap:5px;margin-top:14px}
.descent .fact .swatch i{width:18px;height:18px;border-radius:50%;background:var(--c);opacity:.95;transition:filter .5s,opacity .5s}
.descent .fact .swatch i.gone{filter:grayscale(1) brightness(.5);opacity:.5}
/* near the surface the water is bright, so the type turns to ink */
.descent .stage.shallow{color:var(--ink)}
.descent .stage.shallow .big small,.descent .stage.shallow .fact p,.descent .stage.shallow .ruler,.descent .stage.shallow .hint{color:var(--ink-soft)}
.descent .stage.shallow .ruler{border-color:rgba(3,20,25,.35)}
.descent .stage.shallow .ruler li.passed{color:var(--ink)}
.descent .stage.shallow .ruler li .num{color:#7A5E1E}
.descent .stage.shallow .more{color:var(--ink)}
/* the ruler: confirmed facts, so ruled */
.descent .ruler{position:relative;height:min(72svh,640px);width:200px;transition:color .4s,border-color .4s;border-inline-start:1px solid rgba(228,238,233,.5);font:500 11px/1 var(--mono);letter-spacing:.06em;color:var(--muted)}
.descent .ruler ol{list-style:none;margin:0;padding:0}
.descent .ruler li{position:absolute;inset-inline-start:0;top:calc(var(--d) / 62 * 100%);transform:translateY(-50%);display:flex;align-items:center;gap:10px;white-space:nowrap;opacity:.42;transition:opacity .4s,color .4s}
.descent .ruler li::before{content:"";width:10px;height:1px;background:currentColor}
.descent .ruler li.passed{opacity:1;color:var(--light)}
.descent .ruler li .num{color:var(--sand);min-width:3.2em;transition:color .4s}
.descent .ruler .diver{position:absolute;inset-inline-start:-5px;top:0;width:9px;height:9px;border-radius:50%;background:var(--smb);box-shadow:0 0 0 4px rgba(255,106,43,.25);transform:translateY(-50%)}
.descent .hint{position:absolute;bottom:18px;inset-inline-start:50%;transform:translateX(-50%);font:500 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:flex;gap:8px;align-items:center;opacity:.9}
[dir=rtl] .descent .hint{transform:translateX(50%);letter-spacing:0;font-family:var(--body);font-size:12px}
.descent .hint::after{content:"";width:1px;height:28px;background:currentColor;animation:drop 1.6s var(--ease) infinite}
@keyframes drop{0%{transform:scaleY(0);transform-origin:top}60%{transform:scaleY(1);transform-origin:top}100%{transform:scaleY(0);transform-origin:bottom}}
@media (max-width:860px){
  .descent{height:460svh}
  .descent .surface{padding-top:48px}
  .descent .stage > .in{grid-template-columns:1fr;align-content:start;padding-top:40px;gap:18px}
  .descent .ruler{height:34svh;width:auto;margin-top:8px}
  .descent .ruler li span:not(.num){display:none}
  .descent .ruler li .num{min-width:0}
  .descent .facts{min-height:11em}
  .descent .big{font-size:clamp(80px,26vw,140px)}
}
@media (prefers-reduced-motion:reduce){.descent .hint::after{animation:none}.descent .fact,.descent .surface,.descent .stage > .in{transition:none}}

/* ---------- the finder: chips that sink the cards that don't fit ---------- */
.finder{display:flex;flex-wrap:wrap;gap:4px 22px;margin:-8px 0 22px}
.finder button{font:300 17px/1 var(--display);color:var(--grey);background:none;border:0;border-bottom:1px solid transparent;padding:10px 0 6px;min-height:44px;cursor:pointer;transition:color 150ms var(--ease-out),transform 160ms var(--ease-out)}
.finder button:active{transform:scale(.97)}
.finder button[aria-pressed=true]{color:var(--ink);border-bottom-color:var(--ink)}
.finder button:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
.row .wcard.sunk{opacity:0;transform:translateY(40px) scale(.98);filter:blur(3px);pointer-events:none;transition:opacity 450ms var(--ease-out),transform 450ms var(--ease-out),filter 450ms var(--ease-out)}
.row .wcard[hidden]{display:none}
.row-note{font-size:14px;color:var(--grey);margin-top:-6px}
@media (prefers-reduced-motion:reduce){.row .wcard.sunk{transition:none;transform:none;filter:none}}

/* ---------- numbers ---------- */
.numbers{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:var(--tile-gap)}
.numbers div{background:var(--card);border:1px solid var(--hair);border-radius:18px;padding:22px 18px 18px}
.numbers b{display:block;font:300 clamp(34px,3.6vw,52px)/1 var(--display);letter-spacing:-.02em;color:var(--ink)}
.numbers b.sand{color:#9A7A2E}
.numbers span{display:block;margin-top:8px;font-size:13px;color:var(--grey);line-height:1.4}
@media (max-width:1000px){.numbers{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:560px){.numbers{grid-template-columns:repeat(2,minmax(0,1fr))}}