/* ============================================================
   Casey Ohngren — Portfolio
   Design system: warm off-white, warm ink, single evergreen accent
   Type: Hanken Grotesk + JetBrains Mono
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Hanken+Grotesk:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  /* Warm neutrals (Claude-like off-white, never pure white) */
  --bg:        oklch(0.974 0.006 84);
  --bg-sunk:   oklch(0.958 0.008 82);
  --surface:   oklch(0.992 0.004 86);
  --ink:       oklch(0.255 0.013 70);
  --ink-2:     oklch(0.452 0.012 72);
  --ink-3:     oklch(0.605 0.010 74);
  --ink-4:     oklch(0.72 0.008 78);
  --line:      oklch(0.905 0.008 80);
  --line-soft: oklch(0.935 0.007 82);

  /* Single muted evergreen accent */
  --accent:      oklch(0.515 0.072 162);
  --accent-deep: oklch(0.435 0.070 162);
  --accent-tint: oklch(0.945 0.022 162);

  /* Code block (light, refined) */
  --code-bg:   oklch(0.972 0.006 86);
  --code-kw:   oklch(0.50 0.13 300);   /* keyword - violet */
  --code-str:  oklch(0.50 0.10 150);   /* string - green */
  --code-num:  oklch(0.55 0.13 40);    /* number - amber/red */
  --code-fn:   oklch(0.50 0.10 250);   /* fn - blue */
  --code-com:  oklch(0.66 0.01 80);    /* comment - muted */
  --code-punc: var(--ink-3);

  --shadow-sm: 0 1px 2px oklch(0.4 0.02 70 / 0.05), 0 2px 6px oklch(0.4 0.02 70 / 0.05);
  --shadow-md: 0 4px 14px oklch(0.35 0.02 70 / 0.06), 0 18px 48px oklch(0.35 0.02 70 / 0.09);
  --shadow-lg: 0 8px 24px oklch(0.3 0.02 70 / 0.08), 0 40px 90px oklch(0.3 0.02 70 / 0.13);

  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;

  --maxw: 1180px;
  --gutter: clamp(20px, 5vw, 64px);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }

body{
  margin:0;
  font-family:'Hanken Grotesk', system-ui, sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  font-feature-settings:"ss01","cv01";
  overflow-x:hidden;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
::selection{ background:var(--accent-tint); color:var(--accent-deep); }

/* ---------- layout ---------- */
.wrap{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:var(--gutter); }
.section{ padding-block:clamp(72px, 11vw, 152px); position:relative; }
.section--sunk{ background:var(--bg-sunk); }
.divider{ height:1px; background:var(--line-soft); border:0; margin:0; }

/* ---------- type ---------- */
.eyebrow{
  font-family:'JetBrains Mono', monospace;
  font-size:12px; font-weight:500;
  letter-spacing:0.18em; text-transform:uppercase;
  color:var(--accent-deep);
  margin:0 0 22px;
  display:inline-flex; align-items:center; gap:10px;
}
.eyebrow::before{ content:""; width:22px; height:1px; background:var(--accent); opacity:0.7; }
.eyebrow--plain::before{ display:none; }

h1,h2,h3,h4{ margin:0; font-weight:700; letter-spacing:-0.02em; line-height:1.04; color:var(--ink); }
.display{ font-size:clamp(2.6rem, 6.2vw, 5rem); font-weight:700; letter-spacing:-0.035em; line-height:0.98; }
.h2{ font-size:clamp(2rem, 4.2vw, 3.3rem); letter-spacing:-0.03em; }
.h3{ font-size:clamp(1.35rem, 2.4vw, 1.95rem); letter-spacing:-0.02em; line-height:1.12; }
.lede{ font-size:clamp(1.05rem, 1.7vw, 1.32rem); line-height:1.55; color:var(--ink-2); font-weight:400; }
.measure{ max-width:38ch; }
.measure-wide{ max-width:60ch; }
.mono{ font-family:'JetBrains Mono', monospace; }
.muted{ color:var(--ink-2); }
.faint{ color:var(--ink-3); }

.section-head{ max-width:760px; margin-bottom:clamp(40px, 6vw, 76px); }
.section-head .lede{ margin-top:18px; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:9px;
  font-family:inherit; font-size:0.97rem; font-weight:600;
  padding:13px 22px; border-radius:999px;
  border:1px solid transparent; cursor:pointer;
  transition:transform .35s var(--ease), background .25s var(--ease), border-color .25s, color .25s, box-shadow .35s var(--ease);
  white-space:nowrap;
}
.btn .arrow{ transition:transform .35s var(--ease); }
.btn:hover .arrow{ transform:translateX(4px); }
.btn--primary{ background:var(--ink); color:var(--bg); }
.btn--primary:hover{ background:var(--accent-deep); transform:translateY(-2px); box-shadow:var(--shadow-md); }
.btn--ghost{ background:transparent; color:var(--ink); border-color:var(--line); }
.btn--ghost:hover{ border-color:var(--ink); transform:translateY(-2px); }
.linkish{ color:var(--accent-deep); font-weight:600; display:inline-flex; align-items:center; gap:7px; }
.linkish .arrow{ transition:transform .3s var(--ease); }
.linkish:hover .arrow{ transform:translateX(4px); }

/* ---------- site header ---------- */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:60;
  transition:background .4s var(--ease), border-color .4s, backdrop-filter .4s;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:oklch(0.974 0.006 84 / 0.82);
  backdrop-filter:saturate(1.4) blur(14px);
  -webkit-backdrop-filter:saturate(1.4) blur(14px);
  border-bottom-color:var(--line-soft);
}
.nav{ display:flex; align-items:center; justify-content:space-between; height:70px; }
.brand{ display:flex; align-items:baseline; gap:11px; font-weight:700; letter-spacing:-0.02em; font-size:1.02rem; }
.brand .dot{ width:8px; height:8px; border-radius:50%; background:var(--accent); transform:translateY(-1px); }
.brand small{ font-family:'JetBrains Mono', monospace; font-size:11px; color:var(--ink-3); font-weight:500; letter-spacing:0.04em; }
.nav-links{ display:flex; align-items:center; gap:30px; }
.nav-links a{ font-size:0.92rem; color:var(--ink-2); transition:color .2s; position:relative; }
.nav-links a:hover{ color:var(--ink); }
.nav-links .btn{ padding:9px 18px; }
.site-header .nav-links .btn--primary,
.site-header .nav-links .btn--primary:hover{ color:var(--bg) !important; }
@media (max-width:860px){ .nav-links a:not(.btn){ display:none; } }

/* scroll progress */
.progress{ position:fixed; top:0; left:0; height:2px; width:100%; transform-origin:0 50%; transform:scaleX(0); background:var(--accent); z-index:70; }

/* ---------- hero ---------- */
.hero{ padding-top:clamp(120px, 17vh, 200px); padding-bottom:clamp(40px,6vw,80px); position:relative; }
.hero-grid{ display:grid; grid-template-columns:1.06fr 0.94fr; gap:clamp(32px,5vw,72px); align-items:center; }
@media (max-width:940px){ .hero-grid{ grid-template-columns:1fr; gap:48px; } }
.hero h1{ margin-bottom:26px; }
.hero .lede{ max-width:46ch; }
.hero-ctas{ display:flex; align-items:center; gap:14px; margin-top:34px; flex-wrap:wrap; }
.proof-row{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:1px; margin-top:clamp(48px,7vw,80px); background:var(--line-soft); border:1px solid var(--line-soft); border-radius:var(--r-md); overflow:hidden; }
.proof-row .cell{ background:var(--bg); padding:18px 20px; }
.proof-row .cell .k{ font-family:'JetBrains Mono',monospace; font-size:0.72rem; letter-spacing:0.04em; color:var(--ink-3); text-transform:uppercase; }
.proof-row .cell .v{ font-weight:600; font-size:0.98rem; margin-top:4px; letter-spacing:-0.01em; }
@media (max-width:520px){ .proof-row{ grid-template-columns:1fr 1fr; } }

/* hero OS diagram */
.os{ position:relative; aspect-ratio:1/1.04; width:100%; max-width:520px; margin-inline:auto;
  border:1px solid var(--line); border-radius:var(--r-lg); background:
    radial-gradient(120% 120% at 80% 0%, oklch(0.985 0.006 86) 0%, var(--surface) 55%);
  box-shadow:var(--shadow-md); overflow:hidden; }
.os::before{ /* subtle grid */
  content:""; position:absolute; inset:0;
  background-image:linear-gradient(var(--line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:34px 34px; opacity:0.45; mask-image:radial-gradient(120% 90% at 50% 30%, #000 30%, transparent 90%);
}
.os-label{ position:absolute; top:16px; left:18px; font-family:'JetBrains Mono',monospace; font-size:10.5px; letter-spacing:0.1em; text-transform:uppercase; color:var(--ink-4); z-index:3; }
.os-label .live{ color:var(--accent-deep); }
.os-stage{ position:absolute; left:50%; transform:translateX(-50%); display:flex; align-items:center; gap:10px;
  background:var(--surface); border:1px solid var(--line); border-radius:999px; padding:8px 15px 8px 12px;
  font-size:0.82rem; font-weight:500; box-shadow:var(--shadow-sm); z-index:3; white-space:nowrap;
  opacity:0; }
.os-stage .ix{ font-family:'JetBrains Mono',monospace; font-size:0.66rem; color:var(--ink-4); }
.os-stage .pip{ width:7px; height:7px; border-radius:50%; background:var(--ink-4); transition:background .4s, box-shadow .4s; }
.os-stage.lit .pip{ background:var(--accent); box-shadow:0 0 0 4px var(--accent-tint); }
.os-stage.lit{ border-color:oklch(0.84 0.04 162); }
.os-svg{ position:absolute; inset:0; width:100%; height:100%; z-index:2; pointer-events:none; }
.os-svg path{ fill:none; stroke:var(--line); stroke-width:1.5; }
.os-svg path.flow{ stroke:var(--accent); stroke-width:1.6; stroke-dasharray:5 130; opacity:0.9; }

/* ---------- marquee ---------- */
.marquee{ border-block:1px solid var(--line-soft); background:var(--surface); padding-block:22px; overflow:hidden; position:relative; }
.marquee::before,.marquee::after{ content:""; position:absolute; top:0; bottom:0; width:14%; z-index:2; pointer-events:none; }
.marquee::before{ left:0; background:linear-gradient(90deg, var(--surface), transparent); }
.marquee::after{ right:0; background:linear-gradient(270deg, var(--surface), transparent); }
.marquee-track{ display:flex; gap:0; width:max-content; animation:scroll-x 48s linear infinite; }
.marquee:hover .marquee-track{ animation-play-state:paused; }
.marquee-track .item{ display:inline-flex; align-items:center; font-size:0.98rem; color:var(--ink-2); font-weight:500; white-space:nowrap; }
.marquee-track .item::after{ content:""; width:5px; height:5px; border-radius:50%; background:var(--accent); opacity:0.6; margin-inline:28px; }
@keyframes scroll-x{ to{ transform:translateX(-50%); } }
@media (prefers-reduced-motion: reduce){ .marquee-track{ animation:none; } }

/* ---------- work index ---------- */
.work-index{ display:flex; flex-direction:column; border-top:1px solid var(--line); margin-top:8px; }
.work-row{ display:grid; grid-template-columns:48px 1fr auto; gap:24px; align-items:center; padding:22px 6px; border-bottom:1px solid var(--line); color:var(--ink); transition:background .3s, padding .35s var(--ease); }
.work-row:hover{ background:var(--surface); padding-left:16px; }
.work-row .num{ font-family:'JetBrains Mono',monospace; font-size:0.8rem; color:var(--ink-4); }
.work-row .ttl{ font-size:clamp(1.05rem,1.8vw,1.45rem); font-weight:600; letter-spacing:-0.02em; }
.work-row .meta{ font-size:0.82rem; color:var(--ink-3); display:flex; gap:10px; align-items:center; }
.work-row .wt{ font-family:'JetBrains Mono',monospace; font-size:0.72rem; color:var(--accent-deep); }
@media (max-width:680px){ .work-row{ grid-template-columns:32px 1fr; } .work-row .meta{ grid-column:2; } }

/* ---------- case study ---------- */
.case{ position:relative; }
.case + .case{ border-top:1px solid var(--line); }
.case-head{ display:grid; grid-template-columns:1fr; gap:0; margin-bottom:clamp(36px,5vw,64px); }
.case-kicker{ display:flex; align-items:center; gap:16px; margin-bottom:24px; flex-wrap:wrap; }
.case-no{ font-family:'JetBrains Mono',monospace; font-size:0.78rem; color:var(--ink-4); letter-spacing:0.08em; }
.tag{ font-family:'JetBrains Mono',monospace; font-size:0.7rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--accent-deep); background:var(--accent-tint); border-radius:999px; padding:5px 11px; }
.tag--ghost{ color:var(--ink-3); background:transparent; border:1px solid var(--line); }
.case-title{ font-size:clamp(1.7rem,3.4vw,2.8rem); letter-spacing:-0.03em; line-height:1.05; max-width:20ch; }
.case-sub{ margin-top:18px; font-size:clamp(1.02rem,1.5vw,1.2rem); color:var(--ink-2); max-width:54ch; }

.case-body{ display:grid; grid-template-columns:240px 1fr; gap:clamp(28px,4vw,64px); align-items:start; }
@media (max-width:880px){ .case-body{ grid-template-columns:1fr; gap:32px; } }

/* sticky meta rail (within a case) */
.rail{ position:sticky; top:96px; display:flex; flex-direction:column; gap:24px; }
@media (max-width:880px){ .rail{ position:static; flex-direction:row; flex-wrap:wrap; gap:28px; } }
.rail-block .rk{ font-family:'JetBrains Mono',monospace; font-size:0.68rem; text-transform:uppercase; letter-spacing:0.1em; color:var(--ink-3); margin-bottom:10px; }
.rail-block ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:6px; }
.rail-block li{ font-size:0.9rem; color:var(--ink-2); }
.rail-block .big{ font-size:1.5rem; font-weight:700; letter-spacing:-0.02em; color:var(--ink); }

.case-content{ display:flex; flex-direction:column; gap:clamp(30px,4vw,52px); }
.prose p{ margin:0 0 16px; color:var(--ink-2); max-width:62ch; }
.prose p strong{ color:var(--ink); font-weight:600; }
.block-label{ font-family:'JetBrains Mono',monospace; font-size:0.72rem; text-transform:uppercase; letter-spacing:0.1em; color:var(--ink-3); margin-bottom:14px; display:flex; align-items:center; gap:10px; }
.block-label::before{ content:""; width:14px; height:1px; background:var(--accent); }

/* ---------- figures / screenshots ---------- */
figure{ margin:0; }
.shot{ border-radius:var(--r-md); overflow:hidden; box-shadow:var(--shadow-md); border:1px solid var(--line-soft); background:var(--surface); }
.shot img{ width:100%; }
figcaption{ margin-top:13px; font-size:0.85rem; color:var(--ink-3); display:flex; gap:8px; align-items:baseline; }
figcaption .mono{ color:var(--ink-4); font-size:0.76rem; }
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(14px,2vw,24px); }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:clamp(14px,2vw,22px); }
@media (max-width:720px){ .grid-2,.grid-3{ grid-template-columns:1fr; } }

/* before/after */
.ba{ display:grid; grid-template-columns:1fr 1fr; gap:18px; align-items:end; }
@media (max-width:720px){ .ba{ grid-template-columns:1fr; } }
.ba .badge{ font-family:'JetBrains Mono',monospace; font-size:0.7rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--ink-3); margin-bottom:10px; display:inline-flex; align-items:center; gap:8px; }
.ba .badge.after{ color:var(--accent-deep); }
.ba .badge .d{ width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.7; }

/* ---------- code block ---------- */
.code{ border:1px solid var(--line); border-radius:var(--r-md); overflow:hidden; background:var(--code-bg); box-shadow:var(--shadow-sm); }
.code-bar{ display:flex; align-items:center; gap:9px; padding:11px 15px; border-bottom:1px solid var(--line-soft); }
.code-bar .lang{ font-family:'JetBrains Mono',monospace; font-size:0.74rem; color:var(--ink-2); font-weight:500; }
.code-bar .glyph{ color:var(--ink-4); display:flex; }
.code-bar .file{ margin-left:auto; font-family:'JetBrains Mono',monospace; font-size:0.72rem; color:var(--ink-4); }
.code pre{ margin:0; padding:16px 18px; overflow-x:auto; }
.code code{ font-family:'JetBrains Mono',monospace; font-size:0.82rem; line-height:1.75; color:var(--ink); white-space:pre; }
.tok-kw{ color:var(--code-kw); } .tok-str{ color:var(--code-str); } .tok-num{ color:var(--code-num); }
.tok-fn{ color:var(--code-fn); } .tok-com{ color:var(--code-com); font-style:italic; } .tok-punc{ color:var(--code-punc); }
.tok-attr{ color:var(--code-kw); } .tok-prop{ color:var(--code-fn); }

/* ---------- pull / stat strips ---------- */
.impact-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:var(--r-md); overflow:hidden; }
@media (max-width:760px){ .impact-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:460px){ .impact-grid{ grid-template-columns:1fr; } }
.impact-cell{ background:var(--bg); padding:clamp(24px,3vw,40px) clamp(22px,2.4vw,32px); }
.impact-cell .big{ font-size:clamp(1.6rem,3vw,2.4rem); font-weight:700; letter-spacing:-0.03em; }
.impact-cell .lbl{ margin-top:8px; color:var(--ink-2); font-size:0.95rem; }
.impact-cell.accent .big{ color:var(--accent-deep); }

/* ---------- how I work (pipeline) ---------- */
.pipe{ display:flex; flex-wrap:wrap; gap:12px; }
.pipe .step{ display:flex; align-items:center; gap:12px; }
.pipe .chip{ display:inline-flex; align-items:center; gap:10px; border:1px solid var(--line); background:var(--surface); border-radius:999px; padding:11px 18px; font-weight:500; box-shadow:var(--shadow-sm); transition:border-color .3s, transform .3s var(--ease); }
.pipe .chip .n{ font-family:'JetBrains Mono',monospace; font-size:0.7rem; color:var(--ink-4); }
.pipe .step.active .chip{ border-color:oklch(0.82 0.05 162); transform:translateY(-2px); }
.pipe .step.active .chip .n{ color:var(--accent-deep); }
.pipe .arr{ color:var(--ink-4); }
@media (max-width:620px){ .pipe .arr{ display:none; } }

.work-cols{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(28px,4vw,56px); align-items:start; }
@media (max-width:820px){ .work-cols{ grid-template-columns:1fr; gap:32px; } }

/* ---------- AI tools ---------- */
.tool-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:14px; }
@media (max-width:720px){ .tool-grid{ grid-template-columns:1fr 1fr; } }
.tool{ border:1px solid var(--line); border-radius:var(--r-md); padding:20px; background:var(--surface); transition:border-color .3s, transform .3s var(--ease), box-shadow .3s; }
.tool:hover{ border-color:var(--ink-4); transform:translateY(-3px); box-shadow:var(--shadow-md); }
.tool .nm{ font-weight:600; letter-spacing:-0.01em; display:flex; align-items:center; gap:10px; }
.tool .nm .glyph{ width:24px; height:24px; border-radius:6px; background:var(--accent-tint); color:var(--accent-deep); display:grid; place-items:center; font-family:'JetBrains Mono',monospace; font-size:0.72rem; font-weight:600; }
.tool .ds{ margin-top:10px; font-size:0.88rem; color:var(--ink-2); }

/* simplified toolkit row (process section) */
.toolkit{ margin-top:clamp(38px,5.5vw,68px); display:flex; align-items:center; gap:22px; flex-wrap:wrap; }
.toolkit-label{ font-family:'JetBrains Mono',monospace; font-size:0.72rem; text-transform:uppercase; letter-spacing:0.1em; color:var(--ink-3); }
.tool-row{ display:flex; flex-wrap:wrap; gap:12px; }
.tool-chip{ display:inline-flex; align-items:center; gap:10px; border:1px solid var(--line); background:var(--surface); border-radius:999px; padding:10px 17px 10px 11px; font-weight:500; font-size:0.95rem; box-shadow:var(--shadow-sm); transition:border-color .3s, transform .3s var(--ease); }
.tool-chip:hover{ border-color:var(--ink-4); transform:translateY(-2px); }
.tool-chip .glyph{ width:22px; height:22px; border-radius:6px; background:var(--accent-tint); color:var(--accent-deep); display:grid; place-items:center; font-family:'JetBrains Mono',monospace; font-size:0.7rem; font-weight:600; }

/* ---------- experience ---------- */
.exp{ display:flex; flex-direction:column; border-top:1px solid var(--line); }
.exp-row{ display:grid; grid-template-columns:0.8fr 1.4fr 0.5fr; gap:24px; padding:26px 6px; border-bottom:1px solid var(--line); transition:background .3s, padding .35s var(--ease); }
.exp-row:hover{ background:var(--surface); padding-left:14px; }
.exp-row.feat{ background:var(--surface); }
.exp-row .co{ font-size:1.15rem; font-weight:600; letter-spacing:-0.01em; }
.exp-row .ro{ color:var(--ink-2); font-size:0.95rem; }
.exp-row .ro .lead{ color:var(--ink); font-weight:500; display:block; margin-bottom:4px; }
.exp-row .yr{ font-family:'JetBrains Mono',monospace; font-size:0.8rem; color:var(--ink-4); text-align:right; }
@media (max-width:720px){ .exp-row{ grid-template-columns:1fr; gap:8px; } .exp-row .yr{ text-align:left; } }

/* ---------- contact ---------- */
.contact{ text-align:center; }
.contact h2{ margin-bottom:22px; }
.contact .lede{ margin-inline:auto; }
.contact-actions{ display:flex; gap:14px; justify-content:center; margin-top:38px; flex-wrap:wrap; }
.contact-mail{ font-size:clamp(1.4rem,3.6vw,2.6rem); font-weight:600; letter-spacing:-0.03em; margin-top:46px; display:inline-block; border-bottom:2px solid transparent; transition:border-color .3s; }
.contact-mail:hover{ border-bottom-color:var(--accent); }

/* ---------- footer ---------- */
.foot{ border-top:1px solid var(--line); padding-block:40px; }
.foot-inner{ display:flex; justify-content:space-between; align-items:center; gap:20px; flex-wrap:wrap; color:var(--ink-3); font-size:0.85rem; }
.foot-inner .mono{ font-size:0.76rem; }

/* ============================================================
   Interactive demos (rebuilt, working)
   ============================================================ */
.demo{ border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden; background:var(--surface); box-shadow:var(--shadow-md); }
.demo-top{ display:flex; align-items:center; gap:10px; padding:12px 16px; border-bottom:1px solid var(--line-soft); background:var(--bg); }
.demo-top .dots{ display:flex; gap:6px; }
.demo-top .dots i{ width:10px; height:10px; border-radius:50%; background:var(--line); }
.demo-top .lbl{ font-family:'JetBrains Mono',monospace; font-size:0.74rem; color:var(--ink-3); margin-left:6px; }
.demo-top .badge-live{ margin-left:auto; font-family:'JetBrains Mono',monospace; font-size:0.66rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--accent-deep); display:inline-flex; align-items:center; gap:6px; }
.demo-top .badge-live .d{ width:6px; height:6px; border-radius:50%; background:var(--accent); animation:pulse 2s infinite; }
@keyframes pulse{ 0%,100%{ opacity:1; } 50%{ opacity:0.3; } }
.demo-body{ display:grid; grid-template-columns:1fr 1.05fr; gap:0; }
@media (max-width:760px){ .demo-body{ grid-template-columns:1fr; } }
.demo-controls{ padding:clamp(22px,3vw,34px); display:flex; flex-direction:column; gap:22px; border-right:1px solid var(--line-soft); }
@media (max-width:760px){ .demo-controls{ border-right:0; border-bottom:1px solid var(--line-soft); } }
.demo-stage{ padding:clamp(18px,2.4vw,28px); display:grid; place-items:center; background:
  repeating-conic-gradient(var(--bg-sunk) 0% 25%, var(--surface) 0% 50%) 50% / 22px 22px; }
.demo-stage img{ border-radius:var(--r-sm); box-shadow:var(--shadow-sm); transition:filter .15s linear, opacity .15s; max-height:300px; width:auto; object-fit:contain; }

.demo h4{ font-size:1.05rem; letter-spacing:-0.01em; }
.range{ -webkit-appearance:none; appearance:none; width:100%; height:4px; border-radius:99px; background:var(--line); outline:none; }
.range::-webkit-slider-thumb{ -webkit-appearance:none; width:20px; height:20px; border-radius:50%; background:var(--surface); border:1.5px solid var(--accent); box-shadow:var(--shadow-sm); cursor:pointer; transition:transform .15s; }
.range::-webkit-slider-thumb:hover{ transform:scale(1.12); }
.range::-moz-range-thumb{ width:20px; height:20px; border-radius:50%; background:var(--surface); border:1.5px solid var(--accent); cursor:pointer; }
.demo-stat{ display:flex; justify-content:space-between; font-size:0.84rem; }
.demo-stat .k{ color:var(--ink-3); }
.demo-stat .v{ font-family:'JetBrains Mono',monospace; font-weight:500; }
.demo-stat .v.good{ color:var(--accent-deep); }
.seg{ display:inline-flex; gap:4px; background:var(--bg-sunk); padding:4px; border-radius:10px; border:1px solid var(--line-soft); }
.seg button{ font-family:inherit; font-size:0.85rem; font-weight:500; color:var(--ink-2); background:transparent; border:0; padding:8px 16px; border-radius:7px; cursor:pointer; transition:background .25s, color .25s; }
.seg button.on{ background:var(--surface); color:var(--ink); box-shadow:var(--shadow-sm); }
.url-line{ font-family:'JetBrains Mono',monospace; font-size:0.82rem; color:var(--ink-3); word-break:break-all; }
.url-line b{ color:var(--accent-deep); font-weight:600; }

/* ---------- side-by-side equal-height code/figures ---------- */
.code-row{ align-items:stretch; }
.code-fig{ display:flex; flex-direction:column; margin:0; min-width:0; }
.code-fig .code{ flex:1 1 auto; display:flex; flex-direction:column; }
.code-fig .code pre{ flex:1 1 auto; }
a.shot{ display:block; cursor:pointer; transition:transform .35s var(--ease), box-shadow .35s var(--ease); }
a.shot:hover{ transform:translateY(-3px); box-shadow:var(--shadow-lg); }
.case-live{ margin-top:18px; }

/* ---------- reveal animation ---------- */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in{ opacity:1; transform:none; }
.reveal[data-d="1"]{ transition-delay:.08s; }
.reveal[data-d="2"]{ transition-delay:.16s; }
.reveal[data-d="3"]{ transition-delay:.24s; }
@media (prefers-reduced-motion: reduce){ .reveal{ opacity:1; transform:none; transition:none; } }