/* Research Replay — scientific session archive. */
:root{color-scheme:dark;--bg:#080d18;--panel:#101a2b;--border:#26324a;--text:#ecf0fc;--muted:#96a5c0;--accent:#a691ff;--pass:#68dfb6;--fail:#ff8c9e}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:radial-gradient(ellipse at 75% 0%,#6753ad14,transparent 45%),var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:13px;line-height:1.5}
.replay-page{width:min(1440px,calc(100% - 64px));margin:auto;padding:0 0 24px}
.replay-topbar{height:76px;display:flex;align-items:center;gap:28px;border-bottom:1px solid #ffffff0d;margin-bottom:28px}
.replay-brand{display:flex;align-items:center;gap:0;color:#f4f2ff;font-size:22px;font-weight:800;text-decoration:none;letter-spacing:-.8px}
.replay-brand>span:last-child{color:#bc9cff}
.replay-brand-mark{display:grid;place-items:center;width:32px;height:36px;margin-right:10px;font-size:30px;color:#a29aff;text-shadow:0 0 20px #8a71ff44}
.replay-topbar-context{font-size:9px;letter-spacing:2px;color:#7c8da9}
.replay-saved{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:11px;color:#a5b4ca}
.replay-saved i{width:6px;height:6px;background:#76d3b9;border-radius:50%}
.replay-header{position:relative;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:28px 30px;margin-bottom:20px;border:1px solid #57478066;border-radius:20px;background:radial-gradient(ellipse at 95% 0%,#7e55d826,transparent 60%),linear-gradient(120deg,#151c31,#101726);overflow:hidden}
.replay-header:before{content:"";position:absolute;top:0;left:30px;width:100px;height:2px;background:linear-gradient(90deg,#b498ff,transparent)}
.eyebrow,.label{display:block;color:#9cabc4;font-size:10px;font-weight:650;letter-spacing:1.6px}
.replay-header .eyebrow{color:#b5a1ec;display:flex;align-items:center;gap:8px}
.replay-kicker-icon{font-size:19px;line-height:1}
h1{margin:9px 0;font-size:clamp(24px,2.6vw,36px);font-weight:700;letter-spacing:-1.1px;line-height:1.2}
.replay-description{margin:0 0 12px;color:#aebbd1;font-size:13px}
#replay-subtitle{margin:0;font-family:ui-monospace,SFMono-Regular,monospace;font-size:10px;color:#7e8eac;overflow-wrap:anywhere}
.header-actions{display:flex;gap:10px;flex-shrink:0}
.replay-button{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 17px;border:1px solid #8870db;border-radius:10px;background:#7460c9;color:#fff;font:inherit;font-size:12px;font-weight:600;text-decoration:none;cursor:pointer;transition:background .18s,border-color .18s}
.replay-button.secondary{background:#131d30;border-color:#36435c;color:#cfdaee}
.replay-button:hover{background:#8872e1;border-color:#b9a2ff}
.replay-button.secondary:hover{background:#202c44}
a:focus-visible,button:focus-visible{outline:2px solid #c9b7ff;outline-offset:4px}
.hero-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:20px}
.hero-card,.panel{min-width:0;border:1px solid var(--border);border-radius:15px;background:linear-gradient(135deg,#121c2d,#0e1624);box-shadow:inset 0 1px 0 #ffffff03}
.hero-card{position:relative;padding:19px 20px;overflow:hidden}
.metric-icon{position:absolute;right:16px;top:16px;display:grid;place-items:center;width:32px;height:32px;border:1px solid #a48afe26;border-radius:10px;background:#a48afe0c;color:#b49bff;font-size:21px}
.hero-card .label{padding-right:35px;font-size:9px;letter-spacing:1.4px}
.hero-card strong{display:block;margin:10px 0 4px;font-size:25px;line-height:1.2;font-weight:650;overflow-wrap:anywhere;letter-spacing:-.5px}
.hero-card:last-child strong{font-size:20px;color:#d7c6ff;min-height:30px;display:flex;align-items:center}
.metric-description{font-size:10px;color:#889ab6}
.replay-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-bottom:16px}
.panel{padding:21px 22px}
.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}
.panel-heading .eyebrow{font-size:9px;color:#9f8bda;letter-spacing:1.5px}
h2{margin:5px 0 0;font-size:17px;font-weight:650;letter-spacing:-.3px}
.badge{flex-shrink:0;padding:5px 10px;border:1px solid #a790ed25;border-radius:7px;background:#a790ed09;color:#b8acd5;font-size:9px;font-weight:600;letter-spacing:.4px}
.empty{grid-column:1 / -1;width:100%;padding:24px 16px;border:1px dashed #35425b;border-radius:10px;background:#09111e55;color:#93a1b9;font-size:12px;text-align:center}
.operation-list,.verification-list{display:grid;gap:8px}
.operation,.verification-item{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:11px 13px;border:1px solid #2b3850;border-radius:9px;background:#16203366;font-size:12px;overflow-wrap:anywhere}
.operation-symbol{font-weight:650;color:#d5dff4}.pass{color:var(--pass)}.fail{color:var(--fail)}
.character-grid,.multiplicity-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.character,.multiplicity{padding:12px 8px;border:1px solid #303d57;border-radius:9px;text-align:center;background:#16203366;overflow-wrap:anywhere}
.character span,.multiplicity span{display:block;color:var(--muted);font-size:11px;margin-bottom:4px}
.character strong{font-size:21px;font-weight:600}
.reduction-summary{display:flex;align-items:center;min-height:78px;padding:18px;border:1px solid #7660b54d;border-radius:11px;background:linear-gradient(110deg,#7560bb15,#10192a);color:#dbceff;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:18px;overflow-wrap:anywhere}
.multiplicity-grid:not(:empty){margin-top:12px}.basis-functions:not(:empty){margin-top:14px;color:var(--muted);font-size:12px}
.timeline-panel{margin-top:20px}
.timeline{display:grid;gap:0;margin-left:6px}
.timeline-item{position:relative;margin-left:4px;padding:0 12px 22px 25px;border-left:1px solid #69539366;overflow-wrap:anywhere}
.timeline-item:last-child{padding-bottom:2px}
.timeline-item:before{content:"";position:absolute;left:-5px;top:4px;width:9px;height:9px;border:2px solid #ae96f3;border-radius:50%;background:#161c2e;box-shadow:0 0 0 5px #121b2c}
.timeline-version{font-size:9px;letter-spacing:1px;font-weight:650;color:#ab93e7;text-transform:uppercase}
.timeline-title{margin-top:4px;font-size:13px;font-weight:550;color:#dce5f6}
.timeline-detail{margin-top:4px;color:#92a1ba;font-size:11px}
.replay-footer{display:flex;justify-content:space-between;gap:12px;margin-top:25px;padding-top:16px;border-top:1px solid #ffffff0a;color:#72839f;font-size:10px}
.replay-footer>span:first-child{font-size:9px;letter-spacing:1.3px}.replay-footer b{padding:0 7px;color:#9d83dc}
@media(min-width:1600px){.replay-page{padding-top:8px}.replay-header{padding:32px}.panel{padding:24px}}
@media(max-width:900px){.replay-page{width:calc(100% - 36px)}.replay-topbar-context{display:none}.hero-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.replay-header{padding:23px}.replay-grid{grid-template-columns:1fr}.replay-header{align-items:flex-start}.header-actions{flex-direction:column}}
@media(max-width:560px){.replay-page{width:calc(100% - 24px)}.replay-topbar{height:64px;margin-bottom:18px}.replay-header{flex-direction:column;gap:18px;padding:20px}.header-actions{flex-direction:row;width:100%}.header-actions>*{flex:1}.hero-grid{gap:10px}.hero-card{padding:15px 13px}.metric-icon{width:25px;height:25px;right:10px;top:12px;font-size:17px}.hero-card .label{font-size:8px;letter-spacing:.8px;padding-right:22px}.panel{padding:18px 15px}.character-grid,.multiplicity-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.replay-footer{flex-direction:column}.operation,.verification-item{flex-wrap:wrap}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}