/* Checkpoint 80 — Stable Sequence, Dynamic Expression */
.vn80-panel{max-width:1180px;margin:42px auto;padding:clamp(22px,4vw,42px);border:1px solid rgba(201,169,110,.22);border-radius:24px;background:linear-gradient(145deg,rgba(201,169,110,.075),rgba(183,160,216,.055) 52%,rgba(80,144,184,.045));box-shadow:0 24px 70px rgba(0,0,0,.18)}
.vn80-panel *{box-sizing:border-box}.vn80-kicker{margin:0 0 8px;color:#c9a96e;font:600 11px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.1em;text-transform:uppercase}.vn80-panel h2{max-width:880px;margin:0;color:rgba(255,255,255,.94);font:400 clamp(26px,4vw,42px)/1.08 Georgia,'Times New Roman',serif}.vn80-lead{max-width:850px;margin:14px 0 0;color:rgba(255,255,255,.72);font-size:clamp(15px,1.7vw,18px);line-height:1.72}.vn80-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:24px}.vn80-card{min-width:0;padding:17px;border:1px solid rgba(255,255,255,.09);border-radius:16px;background:rgba(8,7,20,.48)}.vn80-card b{display:block;margin-bottom:7px;color:rgba(255,255,255,.9);font-size:14px}.vn80-card span,.vn80-card p{display:block;margin:0;color:rgba(255,255,255,.58);font-size:13px;line-height:1.62}.vn80-boundary{margin:20px 0 0;padding:14px 16px;border-left:3px solid #b7a0d8;background:rgba(183,160,216,.07);color:rgba(255,255,255,.68);font-size:13px;line-height:1.65}.vn80-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.vn80-actions a,.vn80-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 15px;border:1px solid rgba(201,169,110,.34);border-radius:999px;background:rgba(201,169,110,.08);color:#ead7b8;text-decoration:none;font:600 12px/1.2 ui-monospace,SFMono-Regular,Consolas,monospace}.vn80-actions a:hover,.vn80-button:hover{background:rgba(201,169,110,.15);color:#fff}.vn80-status{display:inline-flex;margin:0 0 12px;padding:5px 9px;border:1px solid rgba(80,144,184,.35);border-radius:999px;color:#8ebfe0;font:600 10px/1.2 ui-monospace,SFMono-Regular,Consolas,monospace;text-transform:uppercase;letter-spacing:.05em}.vn80-defs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:22px}.vn80-defs div{padding:15px;border:1px solid rgba(255,255,255,.08);border-radius:14px;background:rgba(255,255,255,.025)}.vn80-defs dt{color:#ead7b8;font-weight:650}.vn80-defs dd{margin:5px 0 0;color:rgba(255,255,255,.59);font-size:13px;line-height:1.6}.vn80-page{min-height:100vh;background:#080713;color:rgba(255,255,255,.88);font-family:system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}.vn80-wrap{width:min(1100px,calc(100% - 36px));margin:0 auto;padding:54px 0 100px}.vn80-hero{padding:clamp(25px,6vw,70px) 0 36px}.vn80-hero h1{max-width:920px;margin:12px 0 14px;font:400 clamp(42px,8vw,80px)/.98 Georgia,'Times New Roman',serif;color:#f5efe4}.vn80-hero p{max-width:760px;color:rgba(255,255,255,.66);font-size:clamp(17px,2vw,21px);line-height:1.65}.vn80-section{padding:34px 0;border-top:1px solid rgba(255,255,255,.08)}.vn80-section h2{margin:0 0 14px;font:400 clamp(27px,4vw,42px)/1.1 Georgia,'Times New Roman',serif;color:#f1e7d8}.vn80-section h3{margin:24px 0 8px;color:#d8c29f}.vn80-section p,.vn80-section li{max-width:850px;color:rgba(255,255,255,.67);line-height:1.78}.vn80-section strong{color:rgba(255,255,255,.9)}.vn80-table{width:100%;border-collapse:collapse;margin-top:18px}.vn80-table th,.vn80-table td{padding:12px 14px;border:1px solid rgba(255,255,255,.09);vertical-align:top;text-align:left}.vn80-table th{color:#d9c49f;background:rgba(201,169,110,.06)}.vn80-table td{color:rgba(255,255,255,.64)}
.vn80-trace-form{display:grid;gap:18px}.vn80-field{display:grid;gap:7px}.vn80-field label,.vn80-field legend{color:#ead7b8;font-weight:650}.vn80-field small{color:rgba(255,255,255,.45)}.vn80-field input,.vn80-field textarea,.vn80-field select{width:100%;padding:12px 13px;border:1px solid rgba(255,255,255,.14);border-radius:12px;background:rgba(255,255,255,.045);color:#fff;font:inherit}.vn80-field textarea{min-height:110px;resize:vertical}.vn80-trace-actions{display:flex;flex-wrap:wrap;gap:10px}.vn80-output{margin-top:26px;padding:20px;border:1px solid rgba(122,184,152,.25);border-radius:18px;background:rgba(122,184,152,.055)}.vn80-output h2{font-size:24px}.vn80-output pre{white-space:pre-wrap;color:rgba(255,255,255,.68);font:13px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace}.vn80-note{padding:15px;border:1px solid rgba(183,160,216,.2);border-radius:14px;background:rgba(183,160,216,.055);color:rgba(255,255,255,.64);line-height:1.65}.vn80-skip{position:absolute;left:-9999px;top:8px;z-index:999;padding:10px 14px;background:#fff;color:#111}.vn80-skip:focus{left:8px}
@media(max-width:760px){.vn80-grid,.vn80-defs{grid-template-columns:1fr}.vn80-wrap{width:min(100% - 24px,1100px);padding-top:30px}.vn80-panel{margin:28px 12px;padding:22px}.vn80-table{font-size:13px}.vn80-table th,.vn80-table td{padding:9px}}