@import url("tokens.css");
:root {
  /* brand colors, spacing scale, and fonts live in tokens.css, shared with the homepage */
  --text-4:#5a4d40;
  --ease:cubic-bezier(.22,.61,.36,1);
  /* one content grid for the whole page */
  --container-w:1180px;
}
* { box-sizing:border-box; }
html { font-size:17px; scroll-behavior:smooth; -webkit-font-smoothing:antialiased; background:var(--bg); color:var(--text); }
body {
  margin:0; font-family:var(--font-body);
  background:
    radial-gradient(ellipse 75% 65% at 110% 10%,rgba(208,146,58,0.08),transparent 55%),
    radial-gradient(ellipse 60% 50% at -10% 90%,rgba(208,146,58,0.06),transparent 55%),
    var(--bg);
  background-attachment:fixed; min-height:100vh; line-height:1.55;
}
h1,h2,h3 { font-family:var(--font-display); line-height:1.15; margin:0; color:var(--text); letter-spacing:-.01em; }
h1 { font-size:clamp(2.4rem,5vw,3.6rem); font-weight:500; letter-spacing:-.02em; max-width:22ch; }
h2 { font-size:clamp(1.9rem,4vw,2.6rem); letter-spacing:-.015em; max-width:20ch; }
h3 { font-size:1.05rem; margin:0 0 .4rem; }
p { margin:0; color:var(--text-2); }
a { color:var(--text-2); text-decoration:none; transition:color 280ms var(--ease); }
a:hover { color:var(--accent); }
img { max-width:100%; display:block; }

/* ── one content grid, used by every section ── */
.container { max-width:var(--container-w); margin:0 auto; padding:0 1.5rem; }
@media (min-width:1024px) { .container { padding:0 2.5rem; } }
.prose { max-width:640px; margin-inline:auto; }
.prose p + p { margin-top:var(--sp-4); }

.section { padding:var(--sp-8) 0; }
.section-alt { padding:var(--sp-8) 0; background:var(--bg-2); }
.divider { height:1px; background:linear-gradient(90deg,transparent,rgba(255,255,255,0.08) 30%,rgba(208,146,58,0.22) 50%,rgba(255,255,255,0.08) 70%,transparent); }

/* ── standard section header: eyebrow + h2 + lede, identical rhythm everywhere ── */
.section-head { margin-bottom:var(--sp-6); }
.eyebrow { font-family:var(--font-mono); font-size:.72rem; color:var(--accent); text-transform:uppercase; letter-spacing:.14em; margin-bottom:var(--sp-3); }
.lede { margin-top:var(--sp-4); max-width:62ch; font-size:1.02rem; color:var(--text-2); }
.lede + .lede { margin-top:var(--sp-4); }

/* nav */
.cs-nav { position:fixed; top:0; left:0; right:0; z-index:100; padding:.9rem 0; background:rgba(13,4,4,0.72); backdrop-filter:blur(24px) saturate(180%); border-bottom:1px solid var(--border); }
.cs-nav-inner { display:flex; align-items:center; justify-content:space-between; max-width:var(--container-w); margin:0 auto; padding:0 1.5rem; }
@media (min-width:1024px) { .cs-nav-inner { padding:0 2.5rem; } }
.cs-logo { font-family:var(--font-display); font-size:1.35rem; font-weight:500; color:var(--text); }
.cs-back { display:inline-flex; align-items:center; min-height:var(--touch-target-min,44px); font-family:var(--font-mono); font-size:.72rem; letter-spacing:.12em; text-transform:uppercase; color:var(--text-3); }
.cs-back:hover { color:var(--accent); }

/* tags + metrics */
.tag { display:inline-flex; align-items:center; padding:.22rem .6rem; border-radius:999px; font-family:var(--font-mono); font-size:.7rem; letter-spacing:.08em; text-transform:uppercase; background:var(--accent-muted); color:var(--accent); border:1px solid rgba(208,146,58,0.15); }
.tag-row { display:flex; gap:.4rem; flex-wrap:wrap; margin-bottom:var(--sp-5); }
.metric { display:inline-flex; align-items:baseline; gap:.45rem; padding:.45rem .85rem; background:var(--accent-muted); border:1px solid rgba(208,146,58,0.18); border-radius:.65rem; }
.metric-value { font-family:var(--font-display); font-size:1.75rem; line-height:1; color:var(--accent); }
.metric-label { font-family:var(--font-mono); font-size:.68rem; color:var(--text-3); text-transform:uppercase; letter-spacing:.07em; }
.metric-row { display:flex; gap:.75rem; flex-wrap:wrap; margin-top:var(--sp-6); }

/* role/timeline meta strip */
.meta-strip { display:flex; flex-wrap:wrap; gap:.6rem; margin-top:var(--sp-6); padding-top:var(--sp-5); border-top:1px solid var(--border); }
.meta-item { font-family:var(--font-mono); font-size:.72rem; letter-spacing:.05em; color:var(--text-3); padding:.4rem .8rem; background:var(--bg-3); border:1px solid var(--border); border-radius:.5rem; }
.meta-item strong { color:var(--text-2); font-weight:600; text-transform:none; letter-spacing:0; font-family:var(--font-body); }

/* buttons */
.btn { display:inline-flex; align-items:center; gap:.5rem; padding:.65rem 1.1rem; border-radius:.65rem; font-family:var(--font-body); font-size:.8rem; font-weight:600; letter-spacing:.06em; text-transform:uppercase; border:none; cursor:pointer; text-decoration:none; transition:all 280ms var(--ease); }
.btn-primary { background:var(--accent); color:#110500; box-shadow:0 5px 18px rgba(208,146,58,0.25); padding:.65rem .65rem .65rem 1.1rem; }
.btn-primary:hover { background:var(--accent-soft); transform:translateY(-2px); color:#110500; }
.btn-primary svg { width:1.6rem; height:1.6rem; padding:.4rem; box-sizing:border-box; border-radius:50%; background:#110500; color:var(--accent); flex-shrink:0; }
.btn-ghost { background:transparent; color:var(--accent); border:1px solid rgba(208,146,58,0.35); padding:.65rem .65rem .65rem 1.1rem; }
.btn-ghost svg { width:1.6rem; height:1.6rem; padding:.4rem; box-sizing:border-box; border-radius:50%; border:1px solid rgba(208,146,58,0.4); color:var(--accent); flex-shrink:0; }
.btn-ghost:hover svg { border-color:rgba(208,146,58,0.7); }
.btn-ghost:hover { background:var(--accent-muted); border-color:rgba(208,146,58,0.65); color:var(--accent); }
.btn-row { display:flex; gap:.75rem; flex-wrap:wrap; margin-top:var(--sp-6); }

/* generic quote-inline (Problem section) */
.quote-inline { border-left:3px solid var(--accent); padding:.6rem 0 .6rem 1.2rem; }
.quote-inline + .quote-inline { margin-top:var(--sp-5); }
.quote-inline p { font-size:.95rem; color:var(--text-2); font-style:italic; }
.quote-inline cite { font-family:var(--font-mono); font-size:.68rem; color:var(--text-3); text-transform:uppercase; letter-spacing:.08em; margin-top:.45rem; display:block; font-style:normal; }

/* research insight cards (3-up, or 2-up via .cols-2) */
.insight-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:var(--sp-6); margin-top:var(--sp-6); }
@media (max-width:760px) { .insight-grid { grid-template-columns:1fr; } }
.insight-grid.cols-2 { grid-template-columns:repeat(2,1fr); }
@media (max-width:640px) { .insight-grid.cols-2 { grid-template-columns:1fr; } }
.insight-card { background:var(--bg-3); border:1px solid var(--border); border-radius:1rem; padding:var(--sp-5); }
.insight-num { font-family:var(--font-display); font-size:2.1rem; line-height:1; color:var(--accent); margin-bottom:var(--sp-3); }
.insight-card h3 { font-size:1rem; }
.insight-card p { font-size:.9rem; margin-top:.35rem; }

/* pivot callout */
.pivot-box { background:linear-gradient(135deg,rgba(208,146,58,0.08),rgba(208,146,58,0.04)); border:1px solid rgba(208,146,58,0.22); border-radius:1rem; padding:var(--sp-5) var(--sp-6); margin-top:var(--sp-5); max-width:800px; margin-inline:auto; }
.pivot-box h3 { color:var(--accent); margin-bottom:.5rem; font-size:1rem; }
.pivot-box p { font-size:.95rem; }
.pivot-box p + p { margin-top:var(--sp-4); }

/* generic image+note grid — used for lo-fi wireframe archives */
.note-media-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:var(--sp-6); margin-top:var(--sp-6); align-items:start; }
@media (max-width:640px) { .note-media-grid { grid-template-columns:1fr; } }
.note-media-item { display:flex; flex-direction:column; gap:var(--sp-4); }
.note-media-grid.four-col { grid-template-columns:repeat(4,1fr); }
@media (max-width:900px) { .note-media-grid.four-col { grid-template-columns:repeat(2,1fr); } }
.note-rationale { display:flex; gap:.65rem; align-items:flex-start; }
.rationale-bar { width:3px; flex-shrink:0; background:var(--accent); border-radius:2px; margin-top:.2rem; align-self:stretch; }
.rationale-text { font-size:.88rem; color:var(--text-2); line-height:1.5; }
.rationale-text strong { color:var(--accent); display:block; margin-bottom:.25rem; font-size:.8rem; font-weight:500; font-family:var(--font-mono); text-transform:uppercase; letter-spacing:.1em; }

/* text-only insight notes (replaces removed sketch images) */
.note-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:var(--sp-6); margin-top:var(--sp-6); }
@media (max-width:700px) { .note-grid { grid-template-columns:1fr; } }
.note-card { background:var(--bg-3); border:1px solid var(--border); border-radius:1rem; padding:var(--sp-5); }
.note-card h3 { font-family:var(--font-mono); font-size:.78rem; text-transform:uppercase; letter-spacing:.08em; color:var(--accent); margin-bottom:.5rem; }
.note-card p { font-size:.9rem; }

/* generic card (Bins & Deals role/scope/accessibility grids) */
.card { background:var(--bg-3); border:1px solid var(--border); border-radius:1rem; padding:var(--sp-5); }
.card p { font-size:.92rem; }
.card-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:var(--sp-6); margin-top:var(--sp-6); }
@media (max-width:640px) { .card-grid { grid-template-columns:1fr; } }
.constraint-note { margin-top:var(--sp-5); color:var(--text-3); font-size:.88rem; max-width:70ch; }
.constraint-note strong { color:var(--text-2); }

/* numbered process list (Bins & Deals IA mapping / process) */
.process-list { margin-top:var(--sp-4); max-width:800px; }
.process-row { display:grid; grid-template-columns:40px 1fr; gap:1rem; padding:var(--sp-5) 0; border-top:1px solid var(--border); }
.process-row:first-child { border-top:none; padding-top:0; }
.proc-num { width:36px; height:36px; border-radius:.55rem; display:grid; place-items:center; font-family:var(--font-display); font-size:1.1rem; color:#140900; background:var(--accent); flex-shrink:0; }
.process-row p { font-size:.92rem; }

/* design decisions (3-up) */
.decision-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:var(--sp-6); margin-top:var(--sp-6); }
@media (max-width:900px) { .decision-grid { grid-template-columns:repeat(2,1fr); } }
@media (max-width:640px) { .decision-grid { grid-template-columns:1fr; } }
.decision-card { background:var(--bg-3); border:1px solid var(--border); border-radius:1rem; padding:var(--sp-5); }
.decision-num { font-family:var(--font-display); font-size:1.5rem; line-height:1; color:var(--accent); margin-bottom:.5rem; }
.decision-card h3 { font-size:.95rem; margin-bottom:.35rem; }
.decision-card p { font-size:.88rem; }
/* Bins & Deals renders decision cards with the generic .card, decision-num stays a shared style */
.decision-grid .card strong { color:var(--accent); display:block; margin-bottom:.4rem; font-size:1rem; font-family:var(--font-body); }
.decision-grid .card p { font-size:.9rem; }

/* ── comparison frame: forces identical width+height for paired/grid screenshots ── */
.frame { position:relative; width:100%; aspect-ratio:var(--ar,8/5); background:var(--bg-4); border-radius:.75rem; border:1px solid var(--border-strong); overflow:hidden; }
.frame img, .frame video { width:100%; height:100%; object-fit:contain; display:block; }
.frame.ar-portrait { --ar:1/2; }
.frame.ar-killed { --ar:8/5; }

/* evolution / before-after pairs */
.pair-label { font-family:var(--font-mono); font-size:.7rem; color:var(--accent); text-transform:uppercase; letter-spacing:.1em; margin:0 0 var(--sp-4); }
.pair-block + .pair-label { margin-top:var(--sp-7); }
.evolution-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:var(--sp-6); align-items:start; max-width:900px; margin-inline:auto; }
@media (max-width:640px) { .evolution-grid { grid-template-columns:1fr; } }
.evolution-step { display:flex; flex-direction:column; gap:var(--sp-3); }
.evolution-label { display:inline-flex; align-items:center; gap:.5rem; font-family:var(--font-mono); font-size:.68rem; text-transform:uppercase; letter-spacing:.12em; color:var(--text-3); }
.evolution-label .dot { width:7px; height:7px; border-radius:50%; background:var(--accent); flex-shrink:0; }
.evolution-step p { font-size:.85rem; color:var(--text-3); line-height:1.45; }
.evolution-grid.mobile-pair { max-width:520px; }

/* final UI grids — all cells share one frame aspect, so no ragged rows */
.shot-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:var(--sp-6); margin-top:var(--sp-5); }
@media (max-width:820px) { .shot-grid { grid-template-columns:repeat(2,1fr); } }
@media (max-width:480px) { .shot-grid { grid-template-columns:1fr; } }
.shot-grid.four-col { grid-template-columns:repeat(4,1fr); max-width:900px; margin-inline:auto; }
@media (max-width:900px) { .shot-grid.four-col { grid-template-columns:repeat(2,1fr); } }
.shot-item { display:flex; flex-direction:column; gap:var(--sp-3); }
.shot-cap { font-family:var(--font-mono); font-size:.65rem; color:var(--text-3); text-transform:uppercase; letter-spacing:.08em; }

/* quote */
.quote-block { position:relative; padding:var(--sp-6) var(--sp-7) var(--sp-5); background:linear-gradient(180deg,rgba(208,146,58,0.10) 0%,transparent 100%),var(--bg-3); border:1px solid var(--border); border-radius:1rem; max-width:800px; margin-inline:auto; }
.quote-block::before { content:'"'; position:absolute; left:.8rem; top:-.75rem; font-family:var(--font-display); font-size:6rem; color:rgba(208,146,58,0.20); line-height:1; }
.quote-block p { font-size:1.05rem; }
.quote-source { font-family:var(--font-mono); font-size:.68rem; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); margin-top:var(--sp-4); }

/* reflection */
.reflection-list { display:grid; gap:1.25rem; margin-top:var(--sp-5); max-width:800px; margin-inline:auto; }
.reflection-item { display:flex; gap:1rem; align-items:flex-start; padding:var(--sp-4) var(--sp-5); background:var(--bg-3); border:1px solid var(--border); border-radius:.85rem; }
.reflection-num { font-family:var(--font-display); font-size:1.4rem; line-height:1; color:var(--accent); flex-shrink:0; margin-top:.1rem; }
.reflection-item p { font-size:.92rem; }

/* annotated screens */
.anno-block { max-width:920px; margin-inline:auto; }
.anno-wrap { position:relative; margin-top:var(--sp-5); }
.anno-wrap img { width:100%; height:auto; display:block; border-radius:.75rem; border:1px solid var(--border-strong); }
.anno-dot { position:absolute; transform:translate(-50%,-50%); width:28px; height:28px; border-radius:50%; background:var(--accent); color:#110500; font-family:var(--font-mono); font-size:.8rem; font-weight:700; display:flex; align-items:center; justify-content:center; box-shadow:0 0 0 4px rgba(208,146,58,0.28), 0 2px 10px rgba(0,0,0,0.45); z-index:3; }
.anno-legend { display:grid; gap:.75rem; margin-top:var(--sp-5); }
.anno-legend.two-col { grid-template-columns:repeat(2,1fr); gap:.9rem 1.75rem; }
@media (max-width:700px) { .anno-legend.two-col { grid-template-columns:1fr; } }
.anno-legend-item { display:flex; gap:.85rem; align-items:flex-start; }
.anno-legend-num { flex-shrink:0; width:24px; height:24px; border-radius:50%; background:var(--accent-muted); border:1px solid rgba(208,146,58,0.35); color:var(--accent); font-family:var(--font-mono); font-size:.72rem; font-weight:700; display:flex; align-items:center; justify-content:center; margin-top:.1rem; }
.anno-legend-item p { font-size:.9rem; }
.anno-legend-item p strong { color:var(--text); }
/* default: legend runs full width below the screenshot (FinFlow, MedBridge) */
.anno-row { display:grid; grid-template-columns:1fr; gap:var(--sp-6); margin-top:var(--sp-7); align-items:start; max-width:920px; margin-inline:auto; }
/* NAVI's mobile-coach annotation uses a fixed-width legend rail beside a narrower portrait screenshot */
.anno-row.with-legend { grid-template-columns:260px 1fr; }
@media (max-width:640px) { .anno-row, .anno-row.with-legend { grid-template-columns:1fr; } }

/* accessibility stat callouts (FinFlow, MedBridge) */
.access-grid { display:grid; grid-template-columns:1fr 1fr; gap:var(--sp-6); align-items:center; }
@media (max-width:820px) { .access-grid { grid-template-columns:1fr; } }
.access-stats { display:grid; grid-template-columns:repeat(2,1fr); gap:var(--sp-4); }
.access-stat { background:var(--bg-3); border:1px solid var(--border); border-radius:.85rem; padding:var(--sp-4) var(--sp-5); }
.access-stat b { display:block; font-family:var(--font-display); font-size:1.6rem; color:var(--accent); }
.access-stat span { font-size:.78rem; color:var(--text-3); }

/* killed idea */
/* default: even split (NAVI's killed-dashboard comparison) */
.killed-grid { display:grid; grid-template-columns:1fr 1fr; gap:var(--sp-6); align-items:start; }
/* FinFlow's audit-log sitemap comparison gives the image panel more room */
.killed-grid.image-lead { grid-template-columns:1.3fr 1fr; }
@media (max-width:820px) { .killed-grid, .killed-grid.image-lead { grid-template-columns:1fr; } }
.killed-tag { position:absolute; top:0; right:0; background:#2a2a2a; color:#f0e4d3; font-family:var(--font-mono); font-size:.65rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase; padding:.4rem .7rem; z-index:2; }
.killed-copy p { font-size:.95rem; }
.killed-copy p + p { margin-top:var(--sp-4); }
.killed-reason { border-left:3px solid var(--accent); padding:.1rem 0 .1rem 1.1rem; margin-top:var(--sp-5); }
.killed-reason h3 { font-family:var(--font-mono); font-size:.75rem; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); margin-bottom:.3rem; }
.killed-reason p { font-size:.92rem; }

/* guided tour video */
.tour-frame { max-width:900px; margin-top:var(--sp-5); margin-inline:auto; }

/* full process archive (collapsible) */
.archive-details { margin-top:0; }
.archive-summary { cursor:pointer; font-family:var(--font-mono); font-size:.8rem; letter-spacing:.1em; text-transform:uppercase; color:var(--accent); padding:var(--sp-5); background:var(--bg-3); border:1px solid rgba(208,146,58,0.22); border-radius:.75rem; display:flex; align-items:center; justify-content:space-between; gap:1rem; list-style:none; user-select:none; }
.archive-summary::-webkit-details-marker { display:none; }
.archive-summary::marker { content:''; }
.archive-summary .archive-toggle-icon { font-family:var(--font-body); font-size:1.1rem; transition:transform 280ms var(--ease); flex-shrink:0; }
.archive-details[open] .archive-toggle-icon { transform:rotate(45deg); }
.archive-body { padding-top:var(--sp-7); }
.archive-block + .archive-block { margin-top:var(--sp-7); padding-top:var(--sp-7); border-top:1px solid var(--border); }

/* next */
.next-section { padding:var(--sp-7) 0 var(--sp-8); }
.next-label { font-family:var(--font-mono); font-size:.72rem; color:var(--text-3); text-transform:uppercase; letter-spacing:.14em; margin-bottom:var(--sp-3); }
.next-link { font-family:var(--font-display); font-size:clamp(2rem,5vw,3.4rem); font-weight:500; color:var(--text); letter-spacing:-.015em; display:inline-flex; align-items:baseline; gap:.75rem; transition:color 280ms var(--ease); }
.next-link:hover { color:var(--accent); }
.next-link span { display:inline-block; transition:transform 300ms var(--ease); }
.next-link:hover span { transform:translateX(8px); }
.next-sub { margin-top:.6rem; color:var(--text-3); font-size:.9rem; max-width:62ch; }

/* footer */
.cs-footer { padding:var(--sp-6) 0 var(--sp-7); border-top:1px solid var(--border); }
.footer-row { display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:1rem; font-family:var(--font-mono); font-size:.72rem; color:var(--text-4); }
.footer-links { display:flex; gap:1.25rem; }
.footer-links a { color:var(--text-3); letter-spacing:.08em; text-transform:uppercase; }
.footer-links a:hover { color:var(--accent); }

.skip-link { position:fixed; top:-40px; left:1rem; z-index:200; background:var(--accent); color:#110500; padding:.55rem 1rem; border-radius:.5rem; font-family:var(--font-body); font-size:.85rem; font-weight:600; transition:top 200ms var(--ease); }
.skip-link:focus { top:.75rem; }

/* image lightbox — full-screen, native-resolution zoom for case study screenshots */
.frame.zoomable { cursor:zoom-in; }
.cs-lightbox { position:fixed; inset:0; z-index:999; display:none; align-items:center; justify-content:center; padding:5vh 5vw; background:rgba(6,2,1,0.94); cursor:zoom-out; }
.cs-lightbox.open { display:flex; }
.cs-lightbox img { max-width:100%; max-height:100%; width:auto; height:auto; object-fit:contain; border-radius:.6rem; box-shadow:0 40px 100px rgba(0,0,0,.55); cursor:default; }
.cs-lightbox-close, .cs-lightbox-nav { position:fixed; background:var(--bg-3); border:1px solid var(--border-strong); color:var(--text); border-radius:50%; cursor:pointer; display:flex; align-items:center; justify-content:center; transition:background 200ms var(--ease), color 200ms var(--ease); z-index:1000; }
.cs-lightbox-close:hover, .cs-lightbox-nav:hover { background:var(--bg-4); color:var(--accent); }
.cs-lightbox-close { top:1.25rem; right:1.5rem; width:2.75rem; height:2.75rem; font-size:1.15rem; }
.cs-lightbox-nav { top:50%; transform:translateY(-50%); width:3rem; height:3rem; }
.cs-lightbox-prev { left:1.25rem; }
.cs-lightbox-next { right:1.25rem; }
.cs-lightbox-count { position:fixed; bottom:1.5rem; left:50%; transform:translateX(-50%); font-family:var(--font-mono); font-size:.72rem; letter-spacing:.08em; color:rgba(255,255,255,.65); z-index:1000; }
@media (max-width:640px) { .cs-lightbox-nav { width:2.5rem; height:2.5rem; } .cs-lightbox-prev { left:.5rem; } .cs-lightbox-next { right:.5rem; } }

:focus-visible { outline:2px solid rgba(208,146,58,0.55); outline-offset:3px; border-radius:.35rem; }
@media (prefers-reduced-motion:reduce) { * { animation-duration:.01ms!important; transition-duration:.01ms!important; scroll-behavior:auto!important; } }
::selection { background:rgba(208,146,58,0.25); color:var(--text); }
::-webkit-scrollbar { width:10px; } ::-webkit-scrollbar-track { background:#141414; } ::-webkit-scrollbar-thumb { background:#2e2e2e; border-radius:99px; border:2px solid #141414; } ::-webkit-scrollbar-thumb:hover { background:#3d3d3d; }