/* Audio Citra site: dark lacquer base; each product page sets --accent (Shunya flips to a pale room) */
:root{
  --bg:#0c0b10; --panel:#16141d; --line:#2a2733; --fg:#ece9f2; --mute:#8d8899;
  --spanda:#c58bff; --galana:#ffb35c; --akasa:#e895a0; --shunya:#1f6a82; --shunya-lt:#5fb0cc; --agni:#ff6a3d; --lahari:#5fd4b4;
  --on-accent:#111; --nav-h:56px;
  --pale:#eef0ee; --pale-fg:#1d2124; --pale-mute:#5f676c;
  --display:"Syne",system-ui,sans-serif; --body:"Instrument Sans",system-ui,sans-serif; --mono:"JetBrains Mono",ui-monospace,monospace;
  --accent:var(--fg);
  color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
.sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;border:0;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.55}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
.wrap{max-width:1200px;margin:0 auto;padding-inline:max(16px,env(safe-area-inset-left,0px))}
nav{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);padding-block:0;gap:16px}
.skip{position:absolute;left:12px;top:-80px;z-index:20;padding:10px 16px;border-radius:999px;background:var(--fg);color:var(--bg);font:600 14px var(--body);text-decoration:none}
.skip:focus{top:8px}
.logo{font:800 19px var(--display);letter-spacing:.04em;text-decoration:none}
nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0;font-size:14px;flex-wrap:nowrap;min-width:0}
nav ul a{color:var(--mute);text-decoration:none;display:block;padding-block:8px;white-space:nowrap}
nav ul a:hover,nav ul a[aria-current]{color:var(--fg)}
h1,h2,h3{font-family:var(--display);text-wrap:balance;margin:0}
.eyebrow{font:500 12px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--mute)}
.btn{display:inline-block;padding:12px 22px;border-radius:999px;font-weight:600;font-size:15px;text-decoration:none;border:1px solid var(--line)}
.btn.solid{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.btn:focus-visible,button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* hero */
.hero{padding-block:72px 40px;display:grid;gap:24px}
.hero h1{font-size:clamp(40px,7vw,92px);font-weight:800;line-height:.98;letter-spacing:-.02em;max-width:15ch}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero p{color:var(--mute);max-width:56ch;font-size:18px;margin:0}
.hero.hero-tight{padding-block:48px 24px}
.hero.hero-tight h1{font-size:clamp(36px,5vw,68px)}
.soon{display:inline-block;margin:0;padding:11px 22px;border-radius:999px;border:1px dashed var(--line);background:var(--panel);color:var(--mute);font:600 15px var(--body);cursor:default;user-select:none}
.row{display:flex;gap:12px;flex-wrap:wrap}
.plate{border-radius:20px;overflow:hidden;border:1px solid #ffffff14;background:#000;box-shadow:0 40px 80px -30px #000c}
.plate img{width:100%}
.cap{font:400 12px var(--mono);color:var(--mute);margin-top:10px;letter-spacing:.04em}

/* product cards on home */
.bays{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px;padding-block:24px 96px}
.bay{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px;display:grid;gap:12px;min-width:0;text-decoration:none;transition:border-color .2s,transform .2s}
.bay:hover{border-color:var(--c);transform:translateY(-2px)}
.bay h3{font-size:28px}
.bay p{margin:0;color:var(--mute);font-size:14px}
.tag{font:500 12px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--c)}
.thumb{aspect-ratio:16/10;border-radius:12px;overflow:hidden;background:#000}
.thumb img{width:100%;height:100%;object-fit:cover}

/* sections */
section{padding-block:88px;border-top:1px solid var(--line)}
.head{display:grid;gap:14px;max-width:760px;margin-bottom:40px}
.head h2{font-size:clamp(32px,5vw,60px);font-weight:800;letter-spacing:-.02em;line-height:1.02}
.head h2 em{font-style:normal;color:var(--accent)}
.lede{font-size:18px;color:var(--mute);margin:0;max-width:58ch}
.split{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center}
.split.flip{grid-template-columns:1fr 1.4fr}
.split.flip .plate{order:2}
.feats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:36px;margin-top:48px}
.feat{display:grid;gap:6px;min-width:0;align-content:start}
.feat h3,.feat h4{margin:0;font:600 18px var(--body)}
.feat p{margin:0;color:var(--mute);font-size:15px}
.spec{font:400 13px var(--mono);color:var(--mute);font-variant-numeric:tabular-nums}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* module tabs (Spanda) */
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:20px}
.tabs button,.seg button{font:500 13px var(--mono);padding:9px 16px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--fg);cursor:pointer}
.tabs button[aria-selected="true"],.seg button[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.seg{display:inline-flex;gap:6px;flex-wrap:wrap}
.mod{display:none}
.mod.on{display:grid}

/* before/after skin slider */
.compare{position:relative;border-radius:20px;overflow:hidden;border:1px solid #ffffff14;aspect-ratio:16/9;background:#000;touch-action:pan-y;user-select:none}
.compare img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.compare .top{clip-path:inset(0 0 0 var(--x,50%))}
.compare .bar{position:absolute;top:0;bottom:0;left:var(--x,50%);width:2px;background:#fff;box-shadow:0 0 12px #000}
.compare .bar::after{content:"⇆";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:40px;height:40px;border-radius:50%;background:#fff;color:#111;display:grid;place-items:center;font-size:18px}
.compare .lbl{position:absolute;bottom:14px;font:500 12px var(--mono);background:#000a;padding:6px 10px;border-radius:999px}
.compare input{position:absolute;inset:0;opacity:0;cursor:ew-resize;width:100%;height:100%;margin:0;touch-action:pan-y}
.compare:has(input:focus-visible) .bar::after{box-shadow:0 0 0 3px #000,0 0 0 6px var(--accent)}
@supports not selector(:has(*)){.compare:focus-within .bar::after{box-shadow:0 0 0 3px #000,0 0 0 6px var(--accent)}}

/* placeholder for renders still in production */
.pending{aspect-ratio:16/9;border-radius:20px;border:1px dashed color-mix(in srgb,var(--accent) 45%,var(--line));
  background:radial-gradient(90% 80% at 30% 10%,color-mix(in srgb,var(--accent) 22%,transparent),transparent 70%),var(--panel);
  display:grid;place-content:center;text-align:center;gap:8px;padding:24px}
.pending b{font:700 clamp(20px,3vw,30px) var(--display)}
.pending span{font:400 12px var(--mono);color:var(--mute);letter-spacing:.06em;max-width:46ch}
.skins{display:flex;gap:0;flex-wrap:wrap;margin-top:14px;font:500 12px var(--mono);color:var(--mute);cursor:default}
.skins span{padding:0}
.skins span+span::before{content:"·";margin:0 10px;color:var(--line)}
.skins span.d3{color:var(--fg)}

/* measurements */
.meas-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,460px),1fr));gap:20px}
.meas{margin:0;background:#0c0b10;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.meas img{width:100%}
.meas figcaption{display:grid;gap:4px;padding:12px 16px 16px;color:#ece9f2}
.meas figcaption span{color:#b3aebd;font-size:14px}
.meas figcaption small{font:400 12px var(--mono);color:#8d8899}

/* listen */
.listen{display:grid;gap:12px}
.ab-card{display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.ab-card .play{width:46px;height:46px;border-radius:50%;border:0;background:var(--accent);color:var(--on-accent);font-size:16px;cursor:pointer}
.ab-meta{display:grid;gap:2px;min-width:0}
.ab-meta small{font:400 12px var(--mono);color:var(--mute)}
@media (max-width:600px){.ab-card{grid-template-columns:auto 1fr}.ab-card .seg{grid-column:1/-1}}

/* teardown: pinned exploded view */
.td{position:relative;height:calc((var(--n,5) + 2) * 72vh);border-top:1px solid var(--line)}
.td-pin{position:sticky;top:0;height:100vh;height:100svh;display:grid;align-items:center;overflow:hidden;padding-top:var(--nav-h);
  background-image:linear-gradient(color-mix(in srgb,var(--fg) 5%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--fg) 5%,transparent) 1px,transparent 1px);
  background-size:48px 48px;background-position:center}
.td-grid{display:grid;grid-template-columns:minmax(260px,.75fr) 1.5fr;gap:40px;align-items:center;width:100%}
.td-copy{display:grid;gap:14px;align-content:center;min-width:0}
.td-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.td-schem{font:500 12px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--mute);border:1px solid var(--line);border-radius:999px;padding:2px 9px}
.td-copy h2{font-size:clamp(28px,3.8vw,50px);font-weight:800;letter-spacing:-.02em;line-height:1.02}
.td-copy h2 em{font-style:normal;color:var(--accent)}
.td-list{list-style:none;margin:6px 0 0;padding:0;display:grid;gap:0;border-top:1px solid var(--line);position:relative}
.td-list li{border-bottom:1px solid var(--line)}
.td-list button{all:unset;box-sizing:border-box;width:100%;cursor:pointer;display:grid;grid-template-columns:30px 26px 1fr;gap:8px;align-items:center;padding:8px 2px;
  font:500 12.5px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--mute);transition:color .2s}
.td-list button:hover,.td-list button[aria-current="true"]{color:var(--fg)}
.td-list button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.td-plus{color:var(--accent)}
.td-n{font:500 12px var(--mono);color:var(--mute);letter-spacing:.1em}
.td-detail{display:grid;gap:6px;min-height:170px;align-content:start}
.td-detail h3,.td-detail h4{margin:0;font:700 22px var(--display);letter-spacing:-.01em}
.td-detail p{margin:0;color:var(--mute);font-size:15px;max-width:44ch}
.td-hint{font:400 12px var(--mono);letter-spacing:.08em}
.td-link{font:500 13px var(--mono);color:var(--accent);text-decoration:none;margin-top:4px}
.td-stage{position:relative;display:grid;place-items:center;height:calc(100svh - 120px);perspective:2000px}
.td-stack{position:relative;width:74%;aspect-ratio:var(--aspect,16/9);transform-style:preserve-3d;--e:0;--gap:60px;--lift-x:26%;
  transform:translateY(calc(var(--e) * 4%)) rotateX(calc(var(--e) * 64deg)) rotateZ(calc(var(--e) * -32deg))}
.td-layer{position:absolute;inset:0;border-radius:10px;overflow:hidden;color:var(--accent);
  background:color-mix(in srgb,var(--bg) 93%,var(--accent));border:1px solid color-mix(in srgb,var(--accent) 55%,transparent);
  box-shadow:0 0 0 1px #0003,0 20px 40px -20px #000a;backface-visibility:hidden;
  transform:translate3d(calc(var(--lift,0) * var(--e) * var(--lift-x)),0,calc((var(--mid) - var(--i) + var(--open,0)) * var(--e) * var(--gap)));
  transition:opacity .35s,filter .35s}
/* the explode tracks scroll directly; only the active-layer change (--lift / --open) animates */
.td.settled .td-layer{transition:transform .45s cubic-bezier(.2,.7,.2,1),opacity .35s,filter .35s}
.td.near .td-stack{will-change:transform}
.td-layer.img{background:#000}
.td-layer img{width:100%;height:100%;object-fit:cover}
.td-layer svg{width:100%;height:100%;display:block;font:500 8.5px var(--mono);letter-spacing:.08em;fill:currentColor}  /* drawing units: scales with the plate */
.td-layer svg text{fill:currentColor;opacity:.75;stroke:none}
.td-tag{position:absolute;left:10px;top:8px;font:500 12px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:#fff;background:#000a;padding:3px 7px;border-radius:999px}
.td.stepping .td-layer{opacity:.38;filter:saturate(.4)}
.td.stepping .td-layer.above{opacity:.12;--open:.9}
.td.stepping .td-layer.on{opacity:1;filter:none;--lift:1;border-color:var(--accent);box-shadow:0 0 0 1px var(--accent),0 0 48px -8px var(--accent)}
body.pale .td-layer{background:color-mix(in srgb,#fff 94%,var(--accent));box-shadow:0 20px 40px -24px #0005}
body.pale .td-layer.img{background:#000}
@media (max-width:820px){
  .td-grid{grid-template-columns:minmax(0,1fr);gap:8px;align-content:center}
  .td-stage{order:-1;aspect-ratio:auto;height:36svh;width:100%}
  .td-stack{width:min(70%,calc(36svh * 1.3));--lift-x:7%}
  .td-copy{gap:8px}
  .td-copy h2{font-size:24px}
  .td-list{display:flex;flex-wrap:nowrap;gap:6px;border:0;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
  .td-list::-webkit-scrollbar{display:none}
  .td-list li{border:0;flex:0 0 auto}
  .td-list button{grid-template-columns:auto auto;padding:5px 9px;border:1px solid var(--line);border-radius:999px;width:auto}
  .td-list .td-plus{display:none}
  .td-list .td-name{display:none}
  .td-list button[aria-current="true"]{border-color:var(--accent)}
  .td-list button[aria-current="true"] .td-name{display:inline}
  .td-detail{min-height:0}
  .td-detail h3,.td-detail h4{font-size:19px}
  .td-detail p{font-size:14px}
}
@media (prefers-reduced-motion:reduce){.td-stack{--e:1}.td-layer,.td.settled .td-layer{transition:none}}

/* PARTS (Spanda) */
.parts-bar{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:10px}
.parts-count{margin:0;font:500 13px var(--mono);color:var(--mute);letter-spacing:.06em}
.parts-count b{font:800 30px var(--display);color:var(--fg);letter-spacing:0;margin-right:4px}
.parts-note{margin:0 0 28px;color:var(--mute);font-size:14px;max-width:70ch}
.slots{list-style:none;margin:0;padding:0;display:grid;gap:16px;position:relative}
.slots::before{content:"";position:absolute;left:19px;top:20px;bottom:20px;width:1px;background:linear-gradient(var(--accent),color-mix(in srgb,var(--accent) 10%,transparent))}
.slot{display:grid;grid-template-columns:40px minmax(0,1fr);gap:16px;align-items:start}
.slot-n{width:40px;height:40px;border-radius:50%;border:1px solid var(--accent);background:var(--bg);display:grid;place-items:center;font:500 12px var(--mono);position:relative;margin-top:14px}
.slot-body{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:14px 22px;transition:opacity .25s}
.slot-body.off .slot-art,.slot-body.off .slot-strip{opacity:.4}
.slot-art{margin:0;border-radius:10px;overflow:hidden;background:#000;aspect-ratio:1600/538}
.slot-art img{width:100%;height:100%;object-fit:cover}
.slot-info{display:grid;gap:6px;align-content:start;min-width:0}
.slot-info p{margin:0;font-size:14.5px;color:var(--fg)}
.slot-info .slot-guide{color:var(--mute);font-size:13px}
.opt-name{font:800 26px var(--display);letter-spacing:-.01em;line-height:1.1}
.slot-info .use span{font:500 12px var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-right:8px}
.slot-info .bg{color:var(--mute);font-size:13px}
.slot-info .why{font:500 12px var(--mono);color:var(--accent)}
.slot-strip{grid-column:1/-1;display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
.slot-strip button{flex:0 0 auto;width:128px;padding:0;border:1px solid var(--line);border-radius:8px;background:#000;color:#ece9f2;cursor:pointer;overflow:hidden;text-align:left;transition:border-color .2s}
.slot-strip button:hover{border-color:color-mix(in srgb,var(--accent) 60%,var(--line))}
.slot-strip button[aria-pressed="true"]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.slot-strip img{width:100%;aspect-ratio:1600/538;object-fit:cover}
.slot-strip span{display:block;font:500 12px var(--mono);padding:5px 7px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.build{position:static;bottom:12px;z-index:5;margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;padding:12px 14px;border-radius:14px;
  border:1px solid var(--line);background:color-mix(in srgb,var(--panel) 90%,transparent);backdrop-filter:blur(12px);box-shadow:0 20px 40px -20px #000c}
.build .chips{display:flex;flex-wrap:wrap;gap:6px;flex:1 1 360px;min-width:0}
.build .chips span{font:500 12px var(--mono);padding:4px 9px;border-radius:999px;border:1px solid color-mix(in srgb,var(--accent) 55%,var(--line))}
.build .chips span.off{opacity:.4;text-decoration:line-through}
.build .recipes{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.build .recipes small{font:500 12px var(--mono);color:var(--mute);letter-spacing:.1em;text-transform:uppercase}
.build .recipes button{font:500 12px var(--mono);padding:5px 10px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--fg);cursor:pointer}
.build .recipes button[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
@media (min-width:821px){.build.pinned{position:sticky}}
@media (max-width:820px){.slot-body{grid-template-columns:1fr}.slot{grid-template-columns:28px minmax(0,1fr);gap:10px}.slot-n{width:28px;height:28px;font-size:12px}.slots::before{left:13.5px}
  .build{position:static}}

.proof{margin:-64px 0 96px;max-width:70ch;color:var(--mute);font-size:15px;border-left:2px solid var(--accent);padding-left:14px}
.req{font-size:14px}
/* module gallery: renders differ in aspect, so hold one frame while skins swap */
.mod .plate{aspect-ratio:16/9}.mod .plate img{width:100%;height:100%;object-fit:cover}
.cta{text-align:center;display:grid;gap:18px;justify-items:center}
.cta h2{font-size:clamp(30px,5vw,56px)}
footer{padding-block:48px;color:var(--mute);font-size:13px;border-top:1px solid var(--line)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* the Shunya accent is darkened for the pale page; dark pages (home cards) use the light variant */
body:not(.pale){--shunya:var(--shunya-lt)}

/* pale room (Shunya) */
body.pale{--on-accent:#fff;--bg:var(--pale);--panel:#e3e7e5;--line:#cdd3d1;--fg:var(--pale-fg);--mute:var(--pale-mute);color-scheme:light}
body.pale .hero h1,body.pale .head h2{font-weight:500;letter-spacing:-.01em}
body.pale .plate,body.pale .compare{box-shadow:0 30px 60px -30px #0004}

@media (max-width:820px){.split,.split.flip,.grid2{grid-template-columns:1fr}.split.flip .plate{order:0}}
@media (max-width:600px){
  :root{--nav-h:48px}
  nav .wrap{gap:12px}
  .logo{font-size:15px;flex:0 0 auto}
  nav ul{gap:14px;font-size:13px;flex:1 1 auto;justify-content:flex-start;overflow-x:auto;scrollbar-width:none}
  nav ul::-webkit-scrollbar{display:none}
  .hero{padding-block:48px 28px}.hero.hero-tight{padding-block:32px 20px}section{padding-block:64px}
}

/* credits page */
.credits{list-style:none;margin:0 0 24px;padding:0;display:grid;gap:12px;max-width:760px}
.credits li{padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--panel);color:var(--fg);font-size:15px}
.credits a,.hero p a{color:var(--accent)}
footer a{color:var(--mute)}
footer a:hover{color:var(--fg)}