/* ============================================================
   Lumi docs — styles. Light theme is the ORIGINAL design, verbatim.
   Dark theme + command palette are additive.
   ============================================================ */
:root{
  --bg:#F4EFE6;
  --bg-2:#EBE4D6;
  --ink:#15130F;
  --ink-2:#2A2722;
  --ink-3:#4A4438;
  --muted:#6E685C;
  --line:#DDD4C2;
  --line-soft:#E6DEC9;
  --card:#FFFDF9;
  --code-bg:#15130F;
  --accent:oklch(0.72 0.14 40);
  --accent-soft:oklch(0.88 0.07 55);
  --accent-deep:oklch(0.55 0.15 30);
  --hue-a:70;
  --hue-b:30;
  --hue-c:22;
}
/* ---- Dark theme (additive) ---- */
:root[data-theme="dark"]{
  --bg:#15120D;
  --bg-2:#1E1A13;
  --ink:#F4EFE6;
  --ink-2:#E7DFCE;
  --ink-3:#C9BFA8;
  --muted:#9C927E;
  --line:#352E22;
  --line-soft:#2A251C;
  --card:#1C180F;
  --code-bg:#0E0C08;
  --accent:oklch(0.76 0.14 48);
  --accent-soft:oklch(0.82 0.09 58);
  --accent-deep:oklch(0.80 0.13 52);
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:'Inter',system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit}
.mono{font-family:'JetBrains Mono',ui-monospace,monospace}
.serif{font-family:'Instrument Serif',serif;font-weight:400;letter-spacing:-0.01em}

/* Subtle grain overlay to match landing */
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:100;background-image:radial-gradient(rgba(20,15,10,.04) 1px,transparent 1px);background-size:3px 3px;mix-blend-mode:multiply;opacity:.5}
:root[data-theme="dark"] body::before{background-image:radial-gradient(rgba(255,255,255,.03) 1px,transparent 1px);mix-blend-mode:screen}

/* ============ TOP NAV ============ */
.topbar{position:sticky;top:0;z-index:40;background:rgba(244,239,230,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
:root[data-theme="dark"] .topbar{background:rgba(21,18,13,.82)}
.nav{max-width:1360px;margin:0 auto;padding:14px 28px;display:flex;align-items:center;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-family:'Instrument Serif',serif;font-size:22px;letter-spacing:-0.02em}
.logo-mark{width:28px;height:28px;border-radius:8px;background:radial-gradient(120% 80% at 25% 20%,oklch(0.90 0.08 var(--hue-a)) 0%,transparent 55%),radial-gradient(100% 80% at 75% 70%,oklch(0.68 0.18 var(--hue-b)) 0%,transparent 60%),linear-gradient(160deg,oklch(0.78 0.13 55),oklch(0.50 0.15 22));position:relative;overflow:hidden}
.logo-mark::after{content:"";position:absolute;inset:-20%;background:conic-gradient(from 210deg,transparent 0deg,rgba(255,255,255,.35) 20deg,transparent 40deg,transparent 160deg,rgba(255,255,255,.25) 180deg,transparent 210deg);mix-blend-mode:screen;filter:blur(2px)}

.tabs{display:flex;align-items:center;gap:4px;margin-left:16px;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:4px}
.tabs a{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;font-size:13.5px;color:var(--ink-2)}
.tabs a.on{background:var(--ink);color:var(--bg)}
.tabs a .dot{width:5px;height:5px;border-radius:50%;background:currentColor;opacity:.5}

.nav-right{margin-left:auto;display:flex;align-items:center;gap:10px}
.search{display:inline-flex;align-items:center;gap:10px;padding:8px 14px;background:var(--card);border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--muted);min-width:240px;cursor:text}
.search .kbd{margin-left:auto;font-family:'JetBrains Mono',monospace;font-size:10.5px;color:var(--muted);border:1px solid var(--line);padding:1px 6px;border-radius:5px;background:var(--bg)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;font-size:13.5px;font-weight:500;border:1px solid var(--line);background:var(--card);color:var(--ink);cursor:pointer;transition:transform .2s ease}
.btn:hover{transform:translateY(-1px)}
.btn-icon{width:36px;height:36px;padding:0;justify-content:center}
.btn-primary{background:var(--ink);color:var(--bg);border-color:var(--ink);position:relative;overflow:hidden}
.btn-primary::after{content:"";position:absolute;right:-8px;top:-8px;bottom:-8px;width:56px;background:radial-gradient(ellipse at right,var(--accent-soft),var(--accent) 45%,transparent 72%);filter:blur(6px);opacity:.95;pointer-events:none}
.btn-primary > *{position:relative;z-index:1}

/* ============ LAYOUT ============ */
.shell{max-width:1360px;margin:0 auto;padding:0 28px;display:grid;grid-template-columns:256px 1fr;gap:40px}
@media (max-width:960px){.shell{grid-template-columns:1fr;gap:0}.sidebar{display:none}}

/* ============ SIDEBAR ============ */
.sidebar{position:sticky;top:64px;align-self:start;padding:32px 0 48px;height:calc(100vh - 64px);overflow-y:auto;scrollbar-width:thin}
.sidebar::-webkit-scrollbar{width:4px}
.sidebar::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px}
.side-group{margin:0 0 22px}
.side-group-title{display:flex;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;font-size:10.5px;letter-spacing:0.16em;text-transform:uppercase;color:var(--muted);margin:0 8px 10px;padding:4px 0}
.side-group-title .ic{width:14px;height:14px;display:grid;place-items:center;color:var(--accent-deep)}
.side-link{display:flex;align-items:center;gap:10px;padding:7px 12px;border-radius:10px;font-size:13.5px;color:var(--ink-2);position:relative;transition:background .15s ease,color .15s ease}
.side-link:hover{background:rgba(0,0,0,.035);color:var(--ink)}
:root[data-theme="dark"] .side-link:hover{background:rgba(255,255,255,.04)}
.side-link.on{background:var(--card);color:var(--ink);font-weight:500;box-shadow:inset 0 0 0 1px var(--line)}
.side-link.on::before{content:"";position:absolute;left:-14px;top:8px;bottom:8px;width:2px;border-radius:2px;background:var(--accent-deep)}
.side-link .chev{margin-left:auto;color:var(--muted)}
.side-link.has-sub .chev{transition:transform .2s ease}

/* ============ MAIN ============ */
.main{padding:48px 0 96px;min-width:0}
.crumbs{display:flex;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;font-size:10.5px;letter-spacing:0.14em;text-transform:uppercase;color:var(--muted);margin-bottom:18px}
.crumbs .sep{opacity:.5}
.crumbs .cur{color:var(--ink)}

.hero{position:relative;border-radius:28px;overflow:hidden;isolation:isolate;padding:88px 56px 96px;text-align:center;color:#F4EFE6;background:radial-gradient(120% 80% at 18% 20%,oklch(0.92 0.08 var(--hue-a)) 0%,transparent 55%),radial-gradient(110% 80% at 82% 35%,oklch(0.70 0.18 var(--hue-b)) 0%,transparent 60%),radial-gradient(100% 80% at 50% 95%,oklch(0.40 0.12 var(--hue-c)) 0%,transparent 60%),linear-gradient(160deg,oklch(0.72 0.15 50),oklch(0.40 0.13 22))}
.hero::before{content:"";position:absolute;inset:-10%;background:conic-gradient(from 210deg at 30% 40%,transparent 0deg,rgba(255,255,255,.18) 14deg,transparent 30deg,transparent 100deg,rgba(255,255,255,.14) 114deg,transparent 132deg,transparent 210deg,rgba(255,255,255,.18) 224deg,transparent 244deg,transparent 310deg,rgba(255,255,255,.16) 322deg,transparent 342deg);mix-blend-mode:screen;opacity:.6;filter:blur(2px);z-index:0}
.hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:4px 4px;opacity:.5;z-index:0}
.hero-art{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-art svg{position:absolute;opacity:.16}
.hero-art .a1{top:10%;left:6%;width:180px;transform:rotate(-10deg)}
.hero-art .a2{top:18%;right:8%;width:140px;transform:rotate(12deg)}
.hero-art .a3{bottom:10%;left:12%;width:150px;transform:rotate(6deg)}
.hero-art .a4{bottom:14%;right:10%;width:160px;transform:rotate(-8deg)}
.hero-inner{position:relative;z-index:1;max-width:640px;margin:0 auto}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;padding:6px 14px;border:1px solid rgba(244,239,230,.3);border-radius:999px;font-family:'JetBrains Mono',monospace;font-size:10.5px;letter-spacing:0.18em;text-transform:uppercase;background:rgba(244,239,230,.1);backdrop-filter:blur(4px);color:#F4EFE6}
.hero-eyebrow .pulse{width:6px;height:6px;border-radius:50%;background:#F4EFE6;box-shadow:0 0 0 0 rgba(244,239,230,.6);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(244,239,230,.6)}70%{box-shadow:0 0 0 10px rgba(244,239,230,0)}100%{box-shadow:0 0 0 0 rgba(244,239,230,0)}}
.hero h1{font-family:'Instrument Serif',serif;font-weight:400;font-size:clamp(52px,7vw,96px);line-height:0.98;letter-spacing:-0.02em;margin:18px 0 0;text-wrap:balance}
.hero h1 em{font-style:italic}
.hero p{max-width:480px;margin:18px auto 0;color:rgba(244,239,230,.85);font-size:16px;line-height:1.55;text-wrap:pretty}

/* ============ CARD GRID ============ */
.grid{margin-top:32px;display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:720px){.grid{grid-template-columns:1fr}}
.dcard{position:relative;background:var(--card);border:1px solid var(--line);border-radius:22px;overflow:hidden;display:flex;flex-direction:column;min-height:320px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;cursor:pointer;isolation:isolate}
.dcard:hover{transform:translateY(-3px);box-shadow:0 22px 50px -22px rgba(40,15,0,.28);border-color:transparent}
.dcard .illus{position:relative;flex:1;min-height:200px;display:grid;place-items:center;overflow:hidden}
.dcard .illus::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(20,15,10,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(20,15,10,.05) 1px,transparent 1px);background-size:22px 22px;opacity:.6}
.dcard .illus svg{width:60%;height:auto;max-height:160px;position:relative;z-index:1;filter:drop-shadow(0 12px 20px rgba(40,15,0,.18))}
.dcard .body{padding:22px 24px 24px;border-top:1px solid var(--line);background:var(--card)}
.dcard h3{margin:0 0 6px;font-size:17px;font-weight:600;letter-spacing:-0.01em;display:flex;align-items:center;gap:10px}
.dcard h3 .arrow{margin-left:auto;color:var(--muted);transition:transform .25s ease,color .25s ease}
.dcard:hover h3 .arrow{transform:translateX(3px);color:var(--accent-deep)}
.dcard p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.55;text-wrap:pretty}

/* Illus tile palettes (mirror Lumi gradient tiles) */
.illus.a{background:radial-gradient(120% 80% at 18% 18%,oklch(0.92 0.07 var(--hue-a)) 0%,transparent 55%),radial-gradient(110% 80% at 78% 30%,oklch(0.74 0.16 var(--hue-b)) 0%,transparent 60%),linear-gradient(160deg,oklch(0.82 0.12 50),oklch(0.62 0.17 30))}
.illus.b{background:radial-gradient(120% 80% at 25% 20%,oklch(0.90 0.07 80) 0%,transparent 55%),radial-gradient(100% 80% at 80% 70%,oklch(0.70 0.14 45) 0%,transparent 60%),linear-gradient(160deg,oklch(0.78 0.11 60),oklch(0.54 0.15 25))}
.illus.c{background:radial-gradient(120% 80% at 20% 20%,oklch(0.92 0.08 var(--hue-a)) 0%,transparent 55%),radial-gradient(110% 80% at 80% 65%,oklch(0.68 0.16 22) 0%,transparent 60%),linear-gradient(160deg,oklch(0.72 0.14 45),oklch(0.48 0.14 20))}
.illus.d{background:radial-gradient(120% 80% at 25% 20%,oklch(0.88 0.08 55) 0%,transparent 55%),radial-gradient(100% 80% at 75% 60%,oklch(0.66 0.17 30) 0%,transparent 60%),linear-gradient(160deg,oklch(0.78 0.12 55),oklch(0.44 0.13 25))}

/* Section heading between grids */
.section-title{margin:80px 0 20px;display:flex;align-items:baseline;justify-content:space-between;gap:20px}
.section-title h2{font-family:'Instrument Serif',serif;font-weight:400;font-size:36px;letter-spacing:-0.02em;margin:0}
.section-title h2 em{font-style:italic;color:var(--accent-deep)}
.section-title .hint{color:var(--muted);font-size:13px}

/* Compact cards */
.grid-compact{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media (max-width:860px){.grid-compact{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.grid-compact{grid-template-columns:1fr}}
.ccard{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 20px 22px;display:flex;flex-direction:column;gap:8px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;cursor:pointer}
.ccard:hover{transform:translateY(-2px);border-color:var(--ink);box-shadow:0 14px 30px -18px rgba(40,15,0,.22)}
.ccard .ic{width:34px;height:34px;border-radius:10px;background:var(--bg-2);display:grid;place-items:center;color:var(--accent-deep);margin-bottom:4px}
.ccard h4{margin:0;font-size:14.5px;font-weight:600;letter-spacing:-0.01em}
.ccard p{margin:0;color:var(--muted);font-size:13px;line-height:1.5}

/* Footer strip */
.footer-note{margin-top:80px;padding:24px 28px;border:1px dashed var(--line);border-radius:16px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;background:linear-gradient(160deg,var(--card),var(--bg-2))}
.footer-note b{font-family:'Instrument Serif',serif;font-size:20px;letter-spacing:-0.01em}
.footer-note p{margin:0;color:var(--muted);font-size:13.5px;max-width:520px}
.footer-note .btn{margin-left:auto}

/* ============ DOC CONTENT PRIMITIVES ============ */
.prose h2{font-family:'Instrument Serif',serif;font-weight:400;font-size:32px;letter-spacing:-0.02em;margin:56px 0 16px;scroll-margin-top:84px}
.prose h2:first-child{margin-top:8px}
.prose h2 em{font-style:italic;color:var(--accent-deep)}
.prose h3{font-size:16px;font-weight:600;letter-spacing:-0.01em;margin:32px 0 10px;scroll-margin-top:84px}
.prose p{color:var(--ink-2);font-size:15px;line-height:1.65;max-width:680px;margin:0 0 14px;text-wrap:pretty}
.prose ul,.prose ol{color:var(--ink-2);font-size:15px;line-height:1.65;max-width:680px;margin:0 0 14px;padding-left:22px}
.prose li{margin:6px 0}
.prose ol li::marker{color:var(--accent-deep);font-family:'JetBrains Mono',monospace;font-size:.85em}
.prose a.link{color:var(--accent-deep);text-decoration:underline;text-underline-offset:2px}
code.inline{font-family:'JetBrains Mono',monospace;font-size:.86em;background:var(--bg-2);border:1px solid var(--line);border-radius:6px;padding:1px 6px;color:var(--ink-2)}

.callout{display:flex;gap:13px;padding:15px 18px;border:1px solid var(--line);border-left:3px solid var(--accent-deep);border-radius:12px;background:var(--card);font-size:14px;line-height:1.55;color:var(--ink-2);margin:20px 0;max-width:700px}
.callout.warn{border-left-color:oklch(0.68 0.16 60)}
.callout.note{border-left-color:oklch(0.55 0.12 150)}
.callout .ic{flex:none;color:var(--accent-deep);margin-top:1px}
.callout.warn .ic{color:oklch(0.62 0.16 55)}
.callout.note .ic{color:oklch(0.5 0.12 150)}
.callout p{margin:0;max-width:none}

.code{background:var(--code-bg);color:#F4EFE6;border-radius:14px;padding:16px 18px;font-family:'JetBrains Mono',monospace;font-size:12.5px;line-height:1.6;overflow-x:auto;position:relative;margin:16px 0;max-width:700px}
.code .lang{position:absolute;top:9px;right:14px;font-size:10px;color:rgba(244,239,230,.5);text-transform:uppercase;letter-spacing:0.14em}
.code pre{margin:0;white-space:pre;padding-top:6px}

.endpoint{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:11px 16px;margin:8px 0 4px;font-family:'JetBrains Mono',monospace;font-size:13.5px;max-width:700px}
.method{font-size:10.5px;font-weight:600;letter-spacing:0.06em;text-transform:uppercase;padding:3px 9px;border-radius:6px;color:#FFFDF9}
.method.get{background:oklch(0.5 0.12 150)}
.method.post{background:var(--accent-deep)}
.endpoint .path{color:var(--ink);word-break:break-all}

.ptable{width:100%;max-width:700px;border-collapse:collapse;margin:16px 0;font-size:13.5px}
.ptable th,.ptable td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.ptable th{font-family:'JetBrains Mono',monospace;font-size:10.5px;letter-spacing:0.12em;text-transform:uppercase;color:var(--muted);font-weight:500}
.ptable td{color:var(--ink-2);line-height:1.5}
.ptable td code,.ptable th code{font-family:'JetBrains Mono',monospace;font-size:12px;color:var(--ink)}

/* ============ ⌘K COMMAND PALETTE (search) ============ */
.cmdk-overlay{position:fixed;inset:0;z-index:200;display:none;align-items:flex-start;justify-content:center;padding:14vh 20px 20px;background:rgba(20,15,10,.45);backdrop-filter:blur(3px)}
.cmdk-overlay.open{display:flex}
.cmdk{width:min(560px,94vw);background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:0 30px 90px -30px rgba(0,0,0,.55);overflow:hidden}
.cmdk-top{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line);color:var(--muted)}
.cmdk-input{flex:1;border:0;background:transparent;font:inherit;font-size:15px;color:var(--ink);outline:none}
.cmdk-input::placeholder{color:var(--muted)}
.cmdk-esc{font-family:'JetBrains Mono',monospace;font-size:10px;color:var(--muted);border:1px solid var(--line);border-radius:5px;padding:2px 6px}
.cmdk-list{max-height:54vh;overflow-y:auto;padding:8px}
.cmdk-group{font-family:'JetBrains Mono',monospace;font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);padding:12px 12px 4px}
.cmdk-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:10px;cursor:pointer;color:var(--ink-2);font-size:14px}
.cmdk-item .meta{margin-left:auto;font-family:'JetBrains Mono',monospace;font-size:10px;color:var(--muted)}
.cmdk-item.active,.cmdk-item:hover{background:var(--bg-2);color:var(--ink)}
.cmdk-empty{padding:26px 16px;color:var(--muted);font-size:14px;text-align:center}