/* Halcyon — Case study styles. Brand tokens mirror index.html. */
:root {
  --obsidian:#0C0C0C; --charcoal:#161616; --smoke:#2C2C2C;
  --gold:#C49A38; --offwhite:#F0EEEA; --stone:#888480; --teal:#1E7A72;
  --body:#b8b4ae; --faint:#5f5c58; --gold-dim:#4a3f1e; --hairline:#1c1c1c;
  --gold-hover:#d4ab48;
  --font-display:'Cormorant Garamond',Georgia,serif;
  --font-ui:'Jost',system-ui,sans-serif;
  --ease:cubic-bezier(0.4,0,0.2,1);
  --ease-out:cubic-bezier(0.23,1,0.32,1);
}
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body { background:var(--obsidian); color:var(--offwhite); font-family:var(--font-ui); font-weight:300; -webkit-font-smoothing:antialiased; overflow-x:hidden; }
a { color:var(--gold); text-decoration:none; }
a:hover { color:var(--gold-hover); }
::selection { background:rgba(196,154,56,0.22); }
svg { display:block; }
.wrap { max-width:1080px; margin:0 auto; padding:0 clamp(20px,5vw,56px); }
.narrow { max-width:760px; }

.eyebrow { font-family:var(--font-ui); font-weight:400; font-size:13px; letter-spacing:0.24em; text-transform:uppercase; color:var(--teal); }
h1,h2,h3 { font-family:var(--font-display); font-weight:300; color:var(--offwhite); letter-spacing:-0.01em; }
h2 { font-size:clamp(30px,4.4vw,46px); line-height:1.08; }
h3 { font-family:var(--font-display); font-weight:400; font-size:22px; letter-spacing:0; }
p { font-size:16px; line-height:1.8; color:var(--body); }

/* Header */
header.site { position:sticky; top:0; z-index:40; display:flex; align-items:center; justify-content:space-between;
  padding:18px clamp(20px,5vw,56px); border-bottom:1px solid var(--hairline);
  background:rgba(12,12,12,0.85); backdrop-filter:blur(16px) saturate(160%); -webkit-backdrop-filter:blur(16px) saturate(160%); }
.brand { display:flex; align-items:center; gap:13px; }
.brand .wm { font-family:var(--font-display); font-weight:300; font-size:18px; letter-spacing:0.34em; padding-left:0.34em; color:var(--offwhite); }
.back { font-family:var(--font-ui); font-size:13px; letter-spacing:0.06em; color:var(--stone); transition:color .18s var(--ease); }
.back:hover { color:var(--offwhite); }

/* Hero */
.case-hero { padding:clamp(54px,8vw,92px) 0 clamp(40px,5vw,60px); border-bottom:1px solid var(--hairline); }
.crumb { font-size:12px; letter-spacing:0.06em; color:var(--faint); margin-bottom:26px; }
.crumb a { color:var(--stone); }
.crumb a:hover { color:var(--offwhite); }
.tagrow { display:flex; align-items:center; gap:11px; flex-wrap:wrap; margin-bottom:20px; }
.pill { font-family:var(--font-ui); font-weight:400; font-size:11.5px; letter-spacing:0.12em; text-transform:uppercase; border-radius:4px; padding:5px 11px; }
.pill.sector { color:var(--teal); border:1px solid rgba(30,122,114,0.4); }
.pill.live { color:var(--teal); border:1px solid rgba(30,122,114,0.4); }
.client { font-size:13px; color:var(--stone); }
.case-hero h1 { font-size:clamp(38px,6.6vw,72px); line-height:1.03; }
.case-lede { margin-top:26px; font-size:clamp(17px,2vw,20px); line-height:1.75; color:var(--body); max-width:640px; }

/* Stat strip */
.stat-strip { display:grid; grid-template-columns:repeat(4,1fr); border:1px solid var(--hairline); margin-top:52px; }
.stat { padding:26px 22px; border-left:1px solid var(--hairline); }
.stat:first-child { border-left:none; }
.stat-v { font-family:var(--font-display); font-weight:400; font-size:clamp(28px,3.5vw,40px); line-height:1; color:var(--gold); white-space:nowrap; }
.stat-l { margin-top:13px; font-family:var(--font-ui); font-weight:500; font-size:11px; letter-spacing:0.03em; color:var(--offwhite); }
.stat-d { margin-top:7px; font-size:11px; line-height:1.6; color:var(--stone); }

/* Sections */
section.band { padding:clamp(64px,8vw,104px) 0; border-bottom:1px solid var(--hairline); }
section.band.charcoal { background:var(--charcoal); }
.sec-head { margin-bottom:44px; }
.sec-head h2 { margin-top:16px; }
.sec-head p { margin-top:20px; max-width:640px; }

/* Problem / change list */
.split { display:grid; grid-template-columns:1fr 1fr; gap:clamp(28px,4vw,52px); }
.panel { border:1px solid var(--hairline); padding:32px; border-radius:12px; }
.panel.before { background:transparent; }
.panel.after { background:var(--obsidian); border-color:var(--gold-dim); }
.panel-cap { font-family:var(--font-ui); font-size:11px; letter-spacing:0.18em; text-transform:uppercase; color:var(--stone); margin-bottom:18px; }
.panel.after .panel-cap { color:var(--gold); }
.plist { display:flex; flex-direction:column; gap:14px; }
.pitem { display:flex; gap:13px; font-size:14.5px; line-height:1.7; color:var(--body); }
.pitem .b { flex:none; width:5px; height:5px; border-radius:50%; background:var(--gold-dim); margin-top:9px; }
.panel.after .pitem .b { background:var(--gold); }

/* Numbered flow */
.flow { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; margin-top:12px; }
.fstep { border-top:1px solid var(--hairline); padding-top:22px; }
.fstep .n { font-family:var(--font-display); font-weight:300; font-size:38px; line-height:1; color:var(--gold); }
.fstep h3 { margin:14px 0 9px; font-size:20px; }
.fstep p { font-size:14px; line-height:1.7; }

/* Metrics grid */
.mgrid { display:grid; grid-template-columns:repeat(3,1fr); border-top:1px solid var(--hairline); border-left:1px solid var(--hairline); }
.mcell { border-right:1px solid var(--hairline); border-bottom:1px solid var(--hairline); padding:30px 26px; }
.mcell .v { font-family:var(--font-display); font-weight:400; font-size:clamp(26px,3vw,34px); line-height:1.05; color:var(--gold); }
.mcell .l { margin-top:11px; font-size:13px; color:var(--offwhite); }
.mcell .d { margin-top:6px; font-size:12px; line-height:1.6; color:var(--stone); }

/* Chart */
.chart { margin-top:16px; }
.chart-bars { display:flex; align-items:flex-end; gap:clamp(8px,1.6vw,18px); height:190px; padding-top:10px; border-bottom:1px solid var(--hairline); }
.cbar { flex:1; display:flex; flex-direction:column; justify-content:flex-end; align-items:center; height:100%; }
.cbar .fillwrap { width:100%; display:flex; align-items:flex-end; height:100%; }
.cbar .fill { width:100%; background:var(--gold-dim); border-top:1px solid var(--gold); transform:scaleY(0); transform-origin:bottom; transition:transform .9s var(--ease-out); }
.chart.in .cbar .fill { transform:scaleY(1); }
.cbar .val { font-family:var(--font-display); font-size:15px; color:var(--gold); margin-bottom:8px; opacity:0; transition:opacity .5s var(--ease) .4s; }
.chart.in .cbar .val { opacity:1; }
.chart-x { display:flex; gap:clamp(8px,1.6vw,18px); margin-top:12px; }
.chart-x span { flex:1; text-align:center; font-family:var(--font-ui); font-size:10.5px; letter-spacing:0.04em; color:var(--faint); }
.chart-cap { margin-top:18px; font-size:12.5px; color:var(--stone); }

/* Device / UI schematic */
.demo { display:grid; grid-template-columns:1fr 1fr; gap:clamp(30px,5vw,64px); align-items:center; }
.demo-copy h3 { margin-bottom:14px; }
.demo-steps { display:flex; flex-direction:column; gap:4px; margin-top:24px; }
.dstep { display:flex; gap:14px; padding:13px 0; border-top:1px solid var(--hairline); opacity:0.38; transition:opacity .4s var(--ease); }
.dstep.on { opacity:1; }
.dstep .dn { font-family:var(--font-ui); font-size:11px; letter-spacing:0.1em; color:var(--gold); padding-top:3px; min-width:20px; }
.dstep .dt { font-size:14px; line-height:1.65; color:var(--body); }
.dstep.on .dt { color:var(--offwhite); }

.phone { width:100%; max-width:290px; margin:0 auto; border:1px solid var(--smoke); border-radius:22px; padding:12px; background:var(--charcoal); }
.pscreen { background:var(--obsidian); border:1px solid var(--hairline); border-radius:14px; padding:16px; min-height:430px; display:flex; flex-direction:column; gap:11px; }
.ptop { display:flex; justify-content:space-between; align-items:center; padding-bottom:11px; border-bottom:1px solid var(--hairline); }
.ptop .t { font-family:var(--font-display); font-size:15px; color:var(--offwhite); }
.ptop .s { font-family:var(--font-ui); font-size:9px; letter-spacing:0.14em; text-transform:uppercase; color:var(--teal); }
.pcard { border:1px solid var(--hairline); border-radius:8px; padding:12px; opacity:0; transform:translateY(8px); transition:opacity .45s var(--ease-out), transform .45s var(--ease-out), border-color .45s var(--ease); }
.pcard.on { opacity:1; transform:none; }
.pcard.hot { border-color:var(--gold-dim); }
.pk { font-family:var(--font-ui); font-size:9px; letter-spacing:0.14em; text-transform:uppercase; color:var(--stone); }
.pv { font-family:var(--font-ui); font-size:13px; color:var(--offwhite); margin-top:5px; }
.pv .g { color:var(--gold); }
.pmono { font-family:var(--font-ui); font-size:11px; color:var(--body); margin-top:4px; letter-spacing:0.02em; }
.pbar { height:3px; background:var(--hairline); border-radius:2px; margin-top:9px; overflow:hidden; }
.pbar i { display:block; height:100%; background:var(--gold); width:0; transition:width 1.1s var(--ease-out); }
.pcard.on .pbar i { width:var(--w,60%); }
.pthumbs { display:flex; gap:6px; margin-top:9px; }
.pthumbs i { flex:1; height:30px; border:1px solid var(--hairline); border-radius:4px; background:var(--charcoal); }
.pbtn { margin-top:auto; text-align:center; border:1px solid var(--gold); color:var(--gold); border-radius:8px; padding:11px; font-family:var(--font-ui); font-size:11.5px; letter-spacing:0.14em; text-transform:uppercase; opacity:0; transform:translateY(8px); transition:opacity .45s var(--ease-out), transform .45s var(--ease-out), background .3s, color .3s; }
.pbtn.on { opacity:1; transform:none; }
.pbtn.done { background:var(--gold); color:var(--obsidian); }

/* Doc frame (quotation) */
.docframe { width:100%; border:1px solid var(--smoke); border-radius:12px; background:var(--charcoal); padding:12px; }
.docscreen { background:var(--obsidian); border:1px solid var(--hairline); border-radius:8px; padding:20px; min-height:430px; display:flex; flex-direction:column; gap:10px; }
.drow { display:flex; justify-content:space-between; align-items:baseline; gap:12px; padding:9px 0; border-bottom:1px solid var(--hairline); opacity:0; transform:translateY(6px); transition:opacity .4s var(--ease-out), transform .4s var(--ease-out); }
.drow.on { opacity:1; transform:none; }
.drow .k { font-family:var(--font-ui); font-size:10px; letter-spacing:0.12em; text-transform:uppercase; color:var(--stone); }
.drow .v { font-family:var(--font-ui); font-size:13px; color:var(--offwhite); text-align:right; }
.dtotal { margin-top:auto; padding-top:16px; border-top:1px solid var(--gold-dim); display:flex; justify-content:space-between; align-items:baseline; opacity:0; transition:opacity .5s var(--ease); }
.dtotal.on { opacity:1; }
.dtotal .k { font-family:var(--font-ui); font-size:10px; letter-spacing:0.14em; text-transform:uppercase; color:var(--gold); }
.dtotal .v { font-family:var(--font-display); font-size:28px; color:var(--gold); }
.dnote { font-size:11px; color:var(--faint); margin-top:10px; text-align:center; }

.replay { margin-top:18px; background:none; border:1px solid var(--hairline); color:var(--stone); font-family:var(--font-ui); font-size:11px; letter-spacing:0.12em; text-transform:uppercase; padding:9px 16px; border-radius:6px; cursor:pointer; transition:color .2s, border-color .2s; }
.replay:hover { color:var(--gold); border-color:var(--gold-dim); }

/* Try the demo */
.hero-demo { display:inline-flex; align-items:center; gap:10px; margin-top:26px;
  font-family:var(--font-ui); font-weight:400; font-size:14px; color:var(--gold); }
.hero-demo::after { content:''; width:24px; height:1px; background:currentColor; transition:width .25s var(--ease-out); }
.hero-demo:hover::after { width:34px; }

.trydemo { border:1px solid var(--gold-dim); border-radius:12px; padding:clamp(26px,3.6vw,42px);
  display:grid; grid-template-columns:1fr auto; gap:clamp(24px,3vw,40px); align-items:center;
  transition:border-color .24s var(--ease); }
.trydemo:hover { border-color:var(--gold); }
.trydemo .k { font-family:var(--font-ui); font-size:11px; letter-spacing:0.2em; text-transform:uppercase; color:var(--gold); }
.trydemo h3 { margin:14px 0 12px; font-size:clamp(24px,3vw,32px); font-weight:300; }
.trydemo p { font-size:15px; line-height:1.75; max-width:52ch; }
.trydemo .note { margin-top:14px; font-size:12.5px; color:var(--faint); }
.trydemo-cta { display:flex; flex-direction:column; gap:12px; align-items:stretch; }
@media (max-width:760px) {
  .trydemo { grid-template-columns:1fr; }
  .trydemo-cta { align-items:flex-start; }
}

/* Quote */
.pullquote { max-width:760px; }
.pullquote p { font-family:var(--font-display); font-style:italic; font-weight:300; font-size:clamp(24px,3.4vw,34px); line-height:1.4; color:var(--offwhite); }

/* Method note */
.method { border:1px solid var(--hairline); border-radius:12px; padding:30px; }
.method .cap { font-family:var(--font-ui); font-size:11px; letter-spacing:0.2em; text-transform:uppercase; color:var(--stone); margin-bottom:14px; }
.method p { font-size:14px; line-height:1.85; }
.method p + p { margin-top:14px; }

/* CTA */
.cta { text-align:center; }
.cta h2 { margin-bottom:22px; }
.btn { display:inline-flex; align-items:center; justify-content:center; height:52px; padding:0 32px;
  font-family:var(--font-ui); font-weight:500; font-size:13.5px; letter-spacing:0.02em;
  border:1px solid var(--gold); background:var(--gold); color:var(--obsidian); border-radius:6px; cursor:pointer;
  transition:background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease), transform .12s var(--ease-out); }
.btn:hover { background:var(--gold-hover); border-color:var(--gold-hover); color:var(--obsidian); }
.btn:active { transform:scale(0.98); }
.btn-ghost { background:transparent; color:var(--offwhite); border-color:var(--smoke); }
.btn-ghost:hover { background:transparent; color:var(--gold); border-color:var(--gold); }
.ctarow { display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

/* Next case */
.nextcase { display:flex; justify-content:space-between; align-items:center; gap:20px; flex-wrap:wrap;
  border:1px solid var(--hairline); border-radius:12px; padding:28px 32px; transition:border-color .24s var(--ease); }
.nextcase:hover { border-color:var(--stone); }
.nextcase .k { font-family:var(--font-ui); font-size:11px; letter-spacing:0.18em; text-transform:uppercase; color:var(--stone); }
.nextcase .t { font-family:var(--font-display); font-size:26px; color:var(--offwhite); margin-top:8px; }
.nextcase .arw { font-family:var(--font-ui); font-size:13px; color:var(--gold); }

footer.site { border-top:1px solid var(--hairline); padding:44px clamp(20px,5vw,56px); display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:20px; }
.f-tag { font-family:var(--font-display); font-style:italic; font-size:14px; color:var(--stone); margin-left:8px; }
.f-meta { font-size:12px; color:var(--faint); text-align:right; line-height:1.7; }

/* Reveal. Scoped to .js so content stays visible if scripting fails. */
.js [data-reveal] { opacity:0; transform:translateY(20px); transition:opacity .6s var(--ease-out), transform .6s var(--ease-out); }
.js [data-reveal].in { opacity:1; transform:none; }

/* Responsive */
@media (max-width:900px) {
  .split, .demo { grid-template-columns:1fr; }
  .flow { grid-template-columns:repeat(2,1fr); }
  .mgrid { grid-template-columns:repeat(2,1fr); }
}
@media (max-width:680px) {
  .stat-strip { grid-template-columns:repeat(2,1fr); }
  .stat:nth-child(3), .stat:nth-child(4) { border-top:1px solid var(--hairline); }
  .stat:nth-child(3) { border-left:none; }
}
@media (max-width:520px) {
  .flow, .mgrid { grid-template-columns:1fr; }
  .stat-strip { grid-template-columns:1fr; }
  .stat { border-left:none; border-top:1px solid var(--hairline); }
  .stat:first-child { border-top:none; }
  .chart-bars { height:150px; }
}

/* Reduced motion: keep opacity, drop travel */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior:auto; }
  .js [data-reveal] { transform:none; transition:opacity .3s linear; }
  .pcard, .drow, .pbtn { transform:none !important; }
  .cbar .fill { transition:none; transform:scaleY(1); }
  .btn:active { transform:none; }
}