.skip-nav{background:var(--cyan);color:#000;z-index:9999;border-radius:6px;padding:8px 14px;font-weight:700;text-decoration:none;position:absolute;top:-9999px;left:6px}.skip-nav:focus{top:6px}:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}:root{--bg:#080f17;--panel:#101d2c;--panel-2:#14253a;--ink:#dbeafe;--muted:#8fb1cb;--cyan:#00d4ff;--gold:gold;--purple:#9d4edd;--green:#0f8;--red:#f36;--amber:#fa0;--line:#1f3650;color:var(--ink);background:radial-gradient(1300px 900px at 15% -5%, #19314a, transparent), radial-gradient(1200px 900px at 95% -15%, #281b42, transparent), var(--bg);font-family:Space Grotesk,Avenir Next,Futura,Segoe UI,sans-serif}*{box-sizing:border-box}body{background:0 0;min-height:100vh;margin:0}#app{min-height:100vh}.shell{width:min(1240px,94vw);margin:0 auto;padding:24px 0 40px}.cl-hero{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:clamp(1rem,4vw,3rem);margin:clamp(1rem,3vw,2rem) 0 1.5rem;display:flex}.cl-hero-main{flex:22rem;min-width:min(100%,20rem)}.cl-hero-title{letter-spacing:.01em;margin:0;font-size:clamp(1.6rem,3.8vw,2.7rem);font-weight:700;line-height:1.1}.cl-hero-sub{letter-spacing:.01em;color:var(--muted);margin:.4rem 0 0;font-size:clamp(.9rem,1.6vw,1.05rem)}.cl-hero-desc{color:var(--muted);max-width:60ch;margin:.55rem 0 0;font-size:1rem;line-height:1.5}.cl-hero-why{border:1px solid var(--line);background:color-mix(in oklab,var(--cyan) 6%,transparent);border-radius:10px;flex:0 min(40%,26rem);min-width:min(100%,15rem);padding:.85rem 1.05rem}.cl-hero-why-label{letter-spacing:.14em;color:var(--muted);font-size:.68rem;font-weight:700;display:block}.cl-hero-why-text{color:var(--ink);margin:.35rem 0 0;font-size:.95rem;line-height:1.5}@media (width<=640px){.cl-hero{flex-direction:column}.cl-hero-why{flex-basis:auto;width:100%}}.framing{border:1px solid var(--line);background:linear-gradient(180deg, var(--panel), var(--panel-2));border-radius:16px;margin-bottom:14px;padding:16px 18px}.framing-lead{color:var(--ink);margin:0;font-size:1.05rem;line-height:1.55}.framing-order{color:var(--muted);margin:10px 0 0;font-size:.9rem;line-height:1.5}.glossary{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:6px 16px;margin:12px 0 0;display:grid}.glossary>div{align-items:baseline;gap:8px;display:flex}.glossary dt{color:var(--cyan);flex:none;font-family:IBM Plex Mono,Consolas,monospace;font-size:.9rem;font-weight:700}.glossary dd{color:var(--muted);margin:0;font-size:.86rem;line-height:1.4}.gloss{color:var(--muted);font-size:.82rem;font-weight:400}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.panel{border:1px solid var(--line);background:linear-gradient(180deg, var(--panel), var(--panel-2));border-radius:16px;padding:16px}#exhibit-5{grid-column:span 2}h2{margin:0 0 8px;font-size:1.12rem}h3{margin:0 0 8px}.muted{color:var(--muted)}.controls{flex-wrap:wrap;align-items:center;gap:8px;margin-top:12px;display:flex}.controls.stacked{flex-direction:column;align-items:stretch}.row{gap:8px;display:flex}label{color:var(--muted);flex-direction:column;gap:5px;font-size:.95rem;display:flex}input,textarea,button{font:inherit}input,textarea{color:var(--ink);background:#0b1725;border:1px solid #274868;border-radius:8px;padding:8px 10px}textarea{resize:vertical;width:100%;min-height:120px}button{color:var(--ink);cursor:pointer;background:linear-gradient(#173a58,#14253a);border:1px solid #2f5679;border-radius:10px;min-width:44px;min-height:44px;padding:8px 12px}button:hover:not(:disabled){border-color:var(--cyan)}button:disabled{opacity:.5;cursor:not-allowed}button.warn{border-color:var(--amber)}.danger-btn{border-color:var(--red)}.mono{font-family:IBM Plex Mono,Consolas,monospace;font-size:.9rem}.kv p{margin:7px 0}.note{background:#112337;border:1px solid #2f5679;border-radius:8px;margin-top:10px;padding:8px}.ok{color:var(--green)}.amber{color:var(--amber)}.critical{color:var(--red)}.leaf-grid{border:1px solid var(--line);background:#0a1320;border-radius:10px;grid-template-columns:repeat(32,minmax(0,1fr));gap:2px;max-height:300px;margin-top:10px;padding:4px;display:grid;overflow:auto}.leaf{border:1px solid #0000;border-radius:2px;min-height:18px;padding:0;font-size:.55rem}.leaf.fresh{color:#b8f6ff;background:#00d4ff40}.leaf.used{color:#8893a0;background:#8b8e9647;text-decoration:line-through}.leaf.current{border-color:var(--gold);background:#ffd70059;animation:1.1s ease-in-out infinite pulse}@keyframes pulse{0%{box-shadow:0 0 #ffd70070}to{box-shadow:0 0 0 8px #ffd70000}}.meter{border:1px solid var(--line);background:#0a1320;border-radius:999px;height:10px;margin-top:8px;overflow:hidden}.meter .fill{background:linear-gradient(90deg, var(--cyan), var(--purple));height:100%}.sig{white-space:pre-wrap;word-break:break-all;background:#0a1320;border:1px dashed #2e5273;border-radius:8px;margin-top:10px;padding:8px}.steps{margin:10px 0 0;padding-left:18px}.steps li{margin-bottom:6px}.decision{white-space:pre-line;background:#0a1320;border:1px solid #2e5273;border-radius:10px;padding:10px}.bullets{margin:10px 0;padding-left:18px}.danger{border-top:1px solid #36587a;margin-top:10px;padding-top:10px}.span-2{grid-column:span 2}#exhibit-forgery{border-color:var(--red);background:linear-gradient(#1a1320,#201526)}input[type=range]{accent-color:var(--red);width:100%;padding:0}.reach{border:1px solid var(--line);background:#0a1320;border-radius:10px;margin-top:12px;padding:10px 12px}.reach-label{color:var(--muted);margin:0 0 8px;font-size:.85rem}.reach-row{align-items:center;gap:10px;margin:6px 0;display:flex}.reach-name{color:var(--muted);flex:0 0 90px;font-size:.78rem}.reach-bar{border:1px solid var(--line);background:#11202f;border-radius:999px;flex:1;height:12px;overflow:hidden}.reach-fill{width:0;height:100%;transition:width .5s}.reach-fill.single{background:linear-gradient(90deg, #2f5679, var(--cyan))}.reach-fill.many{background:linear-gradient(90deg, var(--amber), var(--red))}.reach-pct{text-align:right;flex:0 0 52px;font-size:.82rem}.verdict{border-radius:10px;margin-top:12px;padding:12px 14px;font-weight:700;line-height:1.4}.verdict:empty{display:none}.verdict.bad{border:1px solid var(--red);color:#ffd0db;background:#ff336629}.verdict.warnish{border:1px solid var(--amber);color:#ffe2ad;background:#ffaa001f}.tree-climb{flex-direction:column;gap:6px;margin-top:10px;display:flex}.climb-start,.climb-root{color:var(--muted);border:1px solid var(--line);background:#0a1320;border-radius:8px;padding:6px 8px;font-size:.82rem}.climb-row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.climb-level{color:var(--cyan);flex:0 0 28px;font-size:.78rem}.climb-pair{gap:2px;display:inline-flex}.climb-node{border:1px solid var(--line);border-radius:6px;padding:4px 8px;font-family:IBM Plex Mono,Consolas,monospace;font-size:.72rem}.climb-node.cur{border-color:var(--cyan);color:#b8f6ff;background:#00d4ff2e}.climb-node.sib{border-color:var(--gold);color:#ffe9a8;background:#ffd70024}.climb-arrow{color:var(--muted);font-size:.74rem}.ots-legend{color:var(--muted);flex-wrap:wrap;align-items:center;gap:6px 14px;margin-top:10px;font-size:.76rem;display:flex}.ots-swatch{border:1px solid var(--line);vertical-align:-1px;border-radius:3px;width:12px;height:12px;margin-right:2px;display:inline-block}.ots-swatch.known{background:var(--green);border-color:var(--green)}.ots-swatch.reach{border-color:var(--cyan);background:#00d4ff4d}.ots-swatch.locked{background:#8b8e9659}.ots-chains{flex-direction:column;gap:5px;margin-top:12px;display:flex}.chain-caption{color:var(--muted);margin:2px 0;font-size:.78rem;line-height:1.45}.chain-row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.chain-pos{color:var(--muted);flex:0 0 46px;font-size:.72rem}.chain-track{flex:240px;gap:2px;min-width:200px;display:inline-flex}.chain-cell{border:1px solid var(--line);border-radius:2px;flex:1 1 0;height:14px}.chain-cell.locked{background:#8b8e9652}.chain-cell.reach{background:#00d4ff47;border-color:#00d4ff80}.chain-cell.known{background:var(--green);border-color:var(--green)}.chain-cell.need{outline:2px solid var(--purple);outline-offset:1px}.chain-depth{color:var(--ink);flex:none;font-size:.72rem}.chain-verdict{flex:none;font-size:.72rem}.chain-verdict.reachable{color:var(--green)}.chain-verdict.blocked{color:var(--amber)}.reach-plain{color:var(--ink);margin:10px 0 0;font-size:.86rem;line-height:1.5}.auth-tree{flex-direction:column;gap:6px;margin-top:10px;display:flex}.atn-caption{color:var(--muted);margin:2px 0;font-size:.78rem;line-height:1.45}.atn-row{align-items:center;gap:10px;display:flex}.atn-lname{color:var(--cyan);flex:0 0 62px;font-size:.72rem}.atn-cells{flex:1;justify-content:center;gap:6px;display:flex}.atn{border:1px solid var(--line);color:var(--muted);text-align:center;background:#0a1320;border-radius:6px;min-width:46px;padding:4px 6px;font-family:IBM Plex Mono,Consolas,monospace;font-size:.68rem}.atn-leaf{border-color:var(--green);color:#b6ffd9;background:#00ff8829}.atn-path{border-color:var(--cyan);color:#b8f6ff;background:#00d4ff2e}.atn-sib{border-color:var(--gold);color:#ffe9a8;background:#ffd70029}@media (width<=1024px){.grid{grid-template-columns:1fr}#exhibit-5,.span-2{grid-column:auto}.leaf-grid{grid-template-columns:repeat(16,minmax(0,1fr));max-height:220px}}@media (width<=600px){.shell{width:100%;padding:12px 10px 32px}.leaf-grid{grid-template-columns:repeat(8,minmax(0,1fr));max-height:180px}.leaf{min-height:22px}.row{flex-direction:column}.controls{gap:10px}textarea{min-height:80px}}