/* Shared styles for the Gallium website (index.html and themes.html) */
:root{
  --bg:#fbfbfd; --ink:#1d1d1f; --mute:#6e6e73; --soft:#f5f5f7; --line:rgba(0,0,0,.1);
  --blue:#0071e3; --blue-h:#0077ed; --link:#0066cc; --link-d:#2997ff;
  --ease:cubic-bezier(.22,.8,.2,1);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Inter","Segoe UI Variable Text","Segoe UI",system-ui,sans-serif;
  --display:-apple-system,BlinkMacSystemFont,"SF Pro Display","Inter","Segoe UI Variable Display","Segoe UI",system-ui,sans-serif;
  --nav:48px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav)}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.47 var(--font);letter-spacing:-.022em;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1024px;margin:0 auto;padding:0 22px}
.wide{max-width:1280px;margin:0 auto;padding:0 22px}

/* ---- nav ---- */
nav{position:sticky;top:0;z-index:20;height:var(--nav);background:rgba(251,251,253,.72);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid transparent;transition:border-color .3s,background .4s}
nav.lined{border-color:var(--line)}
nav.dk{background:rgba(22,22,23,.74)}
nav.dk .brand,nav.dk .links a{color:#f5f5f7}
nav.dk.lined{border-color:rgba(255,255,255,.1)}
nav .wrap{height:100%;display:flex;align-items:center;gap:30px;max-width:1080px}
nav .brand{display:flex;align-items:center;gap:8px;font:600 18px var(--display);color:var(--ink);letter-spacing:-.02em;margin-right:auto}
nav .brand img{width:20px;height:20px;border-radius:5px}
nav .brand:hover{text-decoration:none}
nav .links{display:flex;gap:28px}
nav .links a{color:var(--ink);opacity:.72;font-size:12.5px;letter-spacing:-.005em;transition:opacity .2s}
nav .links a:hover,nav .links a.on{opacity:1;text-decoration:none}
.pill{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:980px;background:var(--blue);color:#fff;font-weight:500;letter-spacing:-.01em;transition:background .2s,transform .2s}
.pill:hover{background:var(--blue-h);text-decoration:none}
.pill:active{transform:scale(.98)}
.pill.sm{font-size:12px;padding:4px 12px}
.pill.lg{font-size:17px;padding:12px 24px}
.pill svg{width:16px;height:16px}
.more{font-size:17px;white-space:nowrap}
.more::after{content:"\00a0›"}

/* ---- hero ---- */
.hero{text-align:center;padding:84px 0 0;overflow:hidden}
.eyebrow{font:600 21px var(--display);margin:0 0 4px;letter-spacing:-.015em;
  background:linear-gradient(90deg,#86868b,#1d1d1f 40%,#86868b);-webkit-background-clip:text;background-clip:text;color:transparent}
h1{font:700 clamp(52px,8.6vw,104px)/1.02 var(--display);letter-spacing:-.05em;margin:0}
.lead{font:400 clamp(19px,2.1vw,24px)/1.38 var(--display);color:var(--mute);max-width:640px;margin:20px auto 32px;letter-spacing:-.02em}
.ctas{display:flex;gap:30px;justify-content:center;align-items:center;flex-wrap:wrap}
.note{font-size:12px;color:var(--mute);margin-top:16px;letter-spacing:-.005em}
.also{font-size:12.5px;color:var(--mute);margin:6px 0 0}
.also a{color:var(--link)}
.frame{position:relative;border-radius:16px;overflow:hidden;background:#d9d9de;
  box-shadow:0 0 0 1px rgba(0,0,0,.07),0 40px 90px -30px rgba(0,0,0,.45),0 18px 36px -18px rgba(0,0,0,.25)}
.frame img{width:100%}
.stage{perspective:1800px;margin:70px auto 0;max-width:1240px;padding:0 22px}
.stage .frame{transform-origin:50% 0;transform:rotateX(var(--rx,18deg)) scale(var(--sc,.88));will-change:transform}

/* ---- sections ---- */
section{padding:150px 0}
.center{text-align:center}
h2{font:700 clamp(40px,6vw,76px)/1.04 var(--display);letter-spacing:-.045em;margin:0}
h3{font:700 clamp(26px,2.8vw,40px)/1.08 var(--display);letter-spacing:-.035em;margin:0 0 12px}
.kicker{font:600 clamp(17px,1.6vw,21px) var(--display);color:var(--mute);margin:0 0 8px;letter-spacing:-.015em}
.dark{background:#000;color:#f5f5f7}
.dark .lead,.dark .mute{color:#a1a1a6}
.dark .kicker{color:#86868b}
.dark a{color:var(--link-d)}
.grey{background:var(--soft)}

/* ---- scroll story: the picture stays put, the words scroll past and swap it ---- */
.story{position:relative;padding:0;transition:background .8s var(--ease),color .8s var(--ease)}
.story.is-dark{background:#04050d;color:#f5f5f7}
/* aurora behind the dark chapters (React Bits Aurora, rbits.js); pinned to the screen while the story scrolls */
.story-aurora{position:sticky;top:0;height:100vh;margin-bottom:-100vh;opacity:0;pointer-events:none;transition:opacity 1.2s var(--ease)}
.story.is-dark .story-aurora{opacity:1}
.story-head,.story-grid{position:relative;z-index:1}
.rb-canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.story-head{text-align:center;padding:150px 22px 40px}
.story-grid{display:grid;grid-template-columns:minmax(260px,1fr) 2.1fr;gap:56px;max-width:1360px;margin:0 auto;padding:0 32px}
.chapters{padding-bottom:30vh}
.chapter{min-height:92vh;display:flex;flex-direction:column;justify-content:center;opacity:.25;transition:opacity .6s var(--ease)}
.chapter.on{opacity:1}
.chapter .n{font:600 13px var(--font);color:var(--blue);letter-spacing:.02em;margin-bottom:12px}
.story.is-dark .chapter .n{color:var(--link-d)}
.chapter p{margin:0;font-size:19px;line-height:1.45;color:var(--mute);max-width:380px}
.story.is-dark .chapter p{color:#a1a1a6}
.chapter .m-only{display:none}
.sticky{position:sticky;top:calc(var(--nav) + 6vh);height:calc(88vh - var(--nav));display:flex;align-items:center}
.sticky .frame{width:100%;aspect-ratio:16/10}
.sticky .frame img{position:absolute;inset:0;height:100%;object-fit:cover;opacity:0;transform:scale(1.035);transition:opacity .8s var(--ease),transform 1.2s var(--ease)}
.sticky .frame img.on{opacity:1;transform:none}
.story.is-dark .frame{box-shadow:0 0 0 1px rgba(255,255,255,.12),0 40px 100px -30px rgba(0,0,0,.9)}
.dots{position:absolute;right:-26px;top:50%;transform:translateY(-50%);display:grid;gap:8px}
.dots i{width:6px;height:6px;border-radius:6px;background:currentColor;opacity:.2;transition:height .4s var(--ease),opacity .3s}
.dots i.on{height:20px;opacity:.75}

/* ---- welcome ---- */
#welcome{background:#000;padding-top:0}
.w-band{position:relative;height:min(94vh,920px);display:grid;place-items:center;overflow:hidden;margin-bottom:20px}
.w-band::after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(60% 46% at 50% 50%,rgba(0,0,0,.62),transparent 75%),linear-gradient(#000,transparent 16%,transparent 72%,#000)}
.w-title{position:relative;z-index:2;max-width:820px;padding:0 22px;text-shadow:0 2px 30px rgba(0,0,0,.6)}
.w-title h2{font-size:clamp(56px,9vw,128px);letter-spacing:-.055em;line-height:1;margin:6px 0 22px}
.w-title .lead{color:#d2d2d7;max-width:620px;margin:0 auto}
.rb-word{display:inline-block;will-change:transform,filter}
/* shiny text (after React Bits ShinyText): a highlight sweeps across the letters */
.shiny{background:linear-gradient(110deg,#8d8d93 38%,#fff 50%,#8d8d93 62%) 0 0/250% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shine 4.5s linear infinite;text-shadow:none}
@keyframes shine{from{background-position:150% 0}to{background-position:-100% 0}}
/* spotlight cards (after React Bits SpotlightCard): a soft light and a lit edge follow the pointer */
.rb-spot{position:relative;isolation:isolate;overflow:hidden;border-radius:24px;background:#0b0b0d;box-shadow:0 30px 70px -40px rgba(0,0,0,.9)}
.rb-spot__light,.rb-spot__border,.rb-spot__edge{position:absolute;inset:0;border-radius:inherit;pointer-events:none;transition:opacity .4s var(--ease)}
.rb-spot__light{z-index:-1;opacity:0;background:radial-gradient(420px circle at var(--sx,50%) var(--sy,50%),rgba(130,160,255,.2),transparent 62%)}
.rb-spot__border,.rb-spot__edge{z-index:1;padding:1px;-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask:linear-gradient(#000 0 0) content-box exclude,linear-gradient(#000 0 0)}
.rb-spot__border{background:rgba(255,255,255,.08)}
.rb-spot__edge{opacity:0;background:radial-gradient(260px circle at var(--sx,50%) var(--sy,50%),rgba(255,255,255,.7),transparent 60%)}
.rb-spot:hover .rb-spot__light,.rb-spot:hover .rb-spot__edge{opacity:1}
.film{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.film figure{margin:0;padding:10px 10px 18px}
.film .frame{border-radius:15px;background:#111}
.film figcaption{margin:16px 8px 0;font-size:14px;color:#a1a1a6;text-align:left}
.film figcaption i{display:block;font:500 11px ui-monospace,Menlo,monospace;color:#6e6e73;margin-bottom:10px;font-style:normal;letter-spacing:.08em}
.film figcaption b{display:block;color:#f5f5f7;font-weight:600;font-size:16px;margin-bottom:3px}
.sound{display:inline-flex;align-items:center;gap:10px;margin-top:40px;padding:11px 20px;border-radius:980px;background:#111113;box-shadow:inset 0 0 0 1px rgba(255,255,255,.1);color:#d2d2d7;font-size:14px}
.sound svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round}
.duo{display:grid;grid-template-columns:1.3fr 1fr;gap:56px;align-items:center;margin-top:110px;text-align:left;padding:18px 48px 18px 18px}
.duo .frame{border-radius:14px}
.steps{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:16px}
.steps li{display:flex;gap:14px;align-items:baseline;color:#a1a1a6}
.steps li b{color:#f5f5f7;font-weight:600}
.steps li span{flex:none;width:26px;height:26px;border-radius:50%;border:1px solid #424245;color:#f5f5f7;font-size:12px;display:grid;place-items:center;transform:translateY(5px)}
@media (prefers-reduced-motion:reduce){ .shiny{animation:none} }

/* ---- features ---- */
.feats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:64px;text-align:left}
.feat{background:#fff;border-radius:24px;padding:28px 26px 30px;box-shadow:0 0 0 1px rgba(0,0,0,.04);transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.feat:hover{transform:translateY(-4px);box-shadow:0 0 0 1px rgba(0,0,0,.04),0 24px 50px -24px rgba(0,0,0,.25)}
.feat .ic{width:44px;height:44px;border-radius:12px;background:var(--soft);display:grid;place-items:center;margin-bottom:18px}
.feat svg{width:24px;height:24px;stroke:var(--blue);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.feat b{display:block;font:600 19px var(--display);margin-bottom:6px;letter-spacing:-.025em}
.feat p{margin:0;font-size:14.5px;color:var(--mute);line-height:1.45}

/* ---- specs ---- */
.specs{margin-top:56px;border-top:1px solid var(--line);text-align:left}
.spec{display:grid;grid-template-columns:240px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}
.spec dt{font:600 17px var(--display);letter-spacing:-.02em}
.spec dd{margin:0;color:var(--mute)}

/* ---- end ---- */
.end{text-align:center;padding:140px 0 150px}
.end .drop{width:min(520px,80vw);margin:0 auto 34px;border-radius:50%;overflow:hidden;aspect-ratio:1;
  -webkit-mask-image:radial-gradient(closest-side,#000 62%,transparent 100%);mask-image:radial-gradient(closest-side,#000 62%,transparent 100%)}
.end .drop img{width:100%;height:100%;object-fit:cover;transform:scale(1.15)}
footer{background:var(--soft);color:var(--mute);font-size:12px;padding:20px 0 34px;letter-spacing:-.005em}
footer .wrap{max-width:1080px}
footer .row{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:16px;border-top:1px solid var(--line)}
footer p{margin:0 0 14px}
footer a{color:#424245}

/* reveal on scroll */
.rv{opacity:0;transform:translateY(40px) scale(.98);filter:blur(10px);transition:opacity 1s var(--ease),transform 1.2s var(--ease),filter 1s var(--ease)}
.rv.in{opacity:1;transform:none;filter:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}

@media (max-width:900px){
  nav .links{display:none}
  section{padding:100px 0}
  .story-head{padding-top:100px}
  .story-grid{grid-template-columns:1fr;padding:0 16px}
  .sticky{display:none}
  .chapter{min-height:auto;opacity:1;padding:40px 0}
  .chapter .m-only{display:block;margin-top:24px}
  .chapters{padding-bottom:60px}
  .film{grid-template-columns:1fr 1fr}
  .duo{grid-template-columns:1fr;gap:28px;padding:14px 14px 28px}
  .feats{grid-template-columns:1fr 1fr}
  .spec{grid-template-columns:1fr;gap:4px}
  .wrap,.wide,.stage{padding-left:16px;padding-right:16px}
}
@media (max-width:520px){ .feats,.film{grid-template-columns:1fr} }
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto!important}
  .rv{opacity:1;transform:none}
  .stage .frame{transform:none}
}

/* ================= motion scenes (index.html) ================= */
/* hero: live Liquid Glass behind the headline */
.split .w{display:inline-block;vertical-align:top}
.split .w>span{display:inline-block;transform:translateY(105%) rotate(4deg);opacity:0;filter:blur(8px);transition:transform 1.1s var(--ease),opacity .9s var(--ease),filter .9s var(--ease);transition-delay:calc(.15s + var(--i) * .09s)}
.split.in .w>span{transform:none;opacity:1;filter:none}

/* zoom: the browser grows from a tilted card to full width */
.zoom{position:relative;height:260vh;background:var(--bg)}
.zoom-pin{position:sticky;top:var(--nav);height:calc(100vh - var(--nav));display:grid;place-items:center;overflow:hidden;perspective:1600px}
.zoom-frame{width:100vw;height:calc(100vh - var(--nav));transform:rotateX(var(--rx,22deg)) scale(var(--s,.58));border-radius:var(--r,28px);overflow:hidden;
  box-shadow:0 60px 120px -40px rgba(0,0,0,.5),0 0 0 1px rgba(0,0,0,.06);will-change:transform}
.zoom-frame img{width:100%;height:100%;object-fit:cover;filter:blur(calc(var(--cap,0) * 8px)) saturate(calc(1 + var(--cap,0) * .2));transform:scale(calc(1 + var(--cap,0) * .04))}
.zoom-cap{position:absolute;inset:0;display:grid;place-items:center;pointer-events:none;background:rgba(0,0,0,calc(var(--cap,0) * .45));opacity:var(--cap,0)}
.zoom-cap h2{color:#fff;text-align:center;text-shadow:0 6px 50px rgba(0,0,0,.5);transform:translateY(calc((1 - var(--cap,0)) * 40px)) scale(calc(.94 + var(--cap,0) * .06))}

/* statement: words light up as you read */
.statement{height:200vh;position:relative}
.statement-pin{position:sticky;top:0;height:100vh;display:grid;place-items:center;padding:0 22px}
.words{max-width:1000px;margin:0;font:700 clamp(32px,4.6vw,64px)/1.15 var(--display);letter-spacing:-.04em}
.words span{opacity:.14;transition:opacity .25s linear}

/* horizontal wallpaper gallery */
.hgal{position:relative;background:#000;color:#f5f5f7}
.hgal-pin{position:sticky;top:0;height:100vh;overflow:hidden;display:flex;flex-direction:column;justify-content:center;gap:5vh}
.hgal-head{max-width:1080px;margin:0 auto;width:100%}
.hgal-head .lead{margin:16px 0 0;max-width:560px;color:#a1a1a6}
.hgal-track{display:flex;gap:28px;padding:0 max(22px,calc((100vw - 1080px) / 2));will-change:transform}
.hgal figure{margin:0;flex:none;width:min(58vw,820px)}
.hg-img{aspect-ratio:16/10;border-radius:22px;overflow:hidden;box-shadow:0 40px 80px -30px rgba(0,0,0,.9),0 0 0 1px rgba(255,255,255,.08)}
.hg-img img{width:100%;height:100%;object-fit:cover;transform:scale(1.12)}
.hgal figcaption{margin-top:14px;font:600 19px var(--display);letter-spacing:-.02em;color:#f5f5f7}

/* feature cards lean toward the pointer */
.feat.tilt{transition:transform .35s var(--ease),box-shadow .5s var(--ease),opacity 1s var(--ease),filter 1s var(--ease);will-change:transform}

/* counting numbers */
.stats{padding:110px 0;background:#000;color:#f5f5f7}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;max-width:1080px}
.stats b{display:block;font:700 clamp(54px,7vw,96px)/1 var(--display);letter-spacing:-.05em;
  background:linear-gradient(180deg,#fff,#a1a1a6);-webkit-background-clip:text;background-clip:text;color:transparent;font-variant-numeric:tabular-nums}
.stats span{display:block;margin-top:10px;color:#a1a1a6;font-size:17px}

/* a strip of themes drifting past */
.marquee{overflow:hidden;margin-top:56px;-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.mq{display:flex;gap:12px;width:max-content;animation:mq 40s linear infinite}
.mq span{display:flex;align-items:center;gap:10px;height:44px;padding:0 18px 0 8px;border-radius:999px;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.06);font-weight:500;font-size:15px;white-space:nowrap}
.mq span::before{content:"";width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--a),var(--b));box-shadow:inset 0 0 0 1px rgba(0,0,0,.1)}
@keyframes mq{to{transform:translateX(-50%)}}
.marquee:hover .mq{animation-play-state:paused}

@media (max-width:900px){
  .stats-grid{grid-template-columns:1fr 1fr;gap:40px 16px}
  .hgal figure{width:78vw}
  .zoom{height:200vh}
}
@media (prefers-reduced-motion:reduce){
  .split .w>span{transform:none;opacity:1;filter:none}
  .mq{animation:none}
  .zoom-frame{transform:none;border-radius:0}
  .words span{opacity:1}
}

/* hero: Gallium on an interactive 3D MacBook Pro */
.hero4{text-align:center;padding:80px 0 30px;background:#f5f5f7;overflow:hidden}
.hero4 h1{font-size:clamp(52px,8.6vw,104px);max-width:13ch;margin:0 auto}
.mac{position:relative;width:min(1280px,100%);margin:10px auto 0;aspect-ratio:16/9;max-height:78vh}
.mac canvas{position:absolute;inset:0;width:100%;height:100%;display:block;opacity:0;transition:opacity 1s var(--ease)}
.mac.ready canvas{opacity:1}
.mac-load{position:absolute;inset:0;display:grid;place-items:center;align-content:center;gap:14px;color:var(--mute);font-size:14px;transition:opacity .6s}
.mac-load span{width:28px;height:28px;border-radius:50%;border:2.5px solid rgba(0,0,0,.12);border-top-color:var(--blue);animation:macspin .9s linear infinite}
@keyframes macspin{to{transform:rotate(360deg)}}
.mac.ready .mac-load{opacity:0;pointer-events:none}
.mac.failed .mac-load{background:#f5f5f7 url(img/home-glass.jpg) center/70% no-repeat;font-size:0}
.mac.failed .mac-load span{display:none}
/* short screens (most laptops): headline, laptop and buttons all fit in the first screen */
@media (min-width:900px) and (max-height:960px){
  .hero4{padding-top:66px}
  .hero4 h1{font-size:clamp(44px,8vh,92px);max-width:none}
  .hero4 .lead{font-size:clamp(17px,2.4vh,22px);max-width:780px;margin:12px auto 20px}
  .hero4 .note{margin-top:10px}
  .mac{aspect-ratio:auto;max-height:none;height:max(320px,calc(100svh - 370px));margin-top:-5.5vh;pointer-events:none}
  .mac-bar{margin-top:-3.5vh;position:relative}
}
.mac-bar{display:flex;flex-direction:column;align-items:center;gap:14px;margin-top:6px}
.screens{display:inline-flex;flex-wrap:wrap;justify-content:center;gap:4px;padding:4px;border-radius:24px;background:rgba(0,0,0,.06)}
.screens button{border:0;background:none;font:500 14px var(--font);color:var(--ink);padding:8px 16px;border-radius:999px;cursor:pointer;transition:background .25s,box-shadow .25s}
.screens button.on{background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.12)}