:root{font-family:Aptos,Segoe UI,Helvetica Neue,Arial,sans-serif;color:#f7fbff;line-height:1.5;font-weight:400;color-scheme:dark}*{box-sizing:border-box}body{margin:0;min-width:320px;background:radial-gradient(circle at top left,rgba(255,181,108,.28),transparent 30%),radial-gradient(circle at top right,rgba(86,224,197,.18),transparent 25%),linear-gradient(135deg,#08111d,#0f1f30,#1a2238);background-attachment:fixed}button,input,textarea{font:inherit}button{cursor:pointer}#root{min-height:100vh}.app-shell{max-width:1500px;margin:0 auto;padding:32px 24px 40px}.hero-card{border:1px solid rgba(157,215,255,.18);border-radius:28px;padding:28px 32px;margin-bottom:24px;background:linear-gradient(145deg,#091423e0,#112439b8);box-shadow:0 24px 60px #00000047}.hero-credit{margin:0 0 10px;text-align:right;color:#bdd0df;font-size:.92rem}.eyebrow{margin:0 0 8px;text-transform:uppercase;letter-spacing:.18em;font-size:.78rem;color:#ffb349}.hero-card h1{margin:0;font-family:Aptos,Segoe UI,Helvetica Neue,Arial,sans-serif;font-size:clamp(2.2rem,4vw,3.8rem);line-height:.95;font-weight:800}.hero-copy{max-width:760px;margin:14px 0 0;color:#c2d7ea}.workspace-grid{display:grid;grid-template-columns:minmax(0,560px) minmax(0,1fr);gap:24px;align-items:start;width:100%}.left-column,.right-column{display:grid;gap:24px;min-width:0;position:relative;width:100%;max-width:100%}.panel{border:1px solid rgba(126,247,198,.14);border-radius:24px;padding:20px;background:#08141fbd;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);box-shadow:0 18px 40px #0000002e;min-width:0;max-width:100%}.section-header{display:flex;justify-content:space-between;align-items:start;gap:16px;margin-bottom:16px}.section-header h2{margin:0;font-family:Aptos,Segoe UI,Helvetica Neue,Arial,sans-serif;font-size:1.5rem;font-weight:750}.section-header p{margin:6px 0 0;color:#bdd0df}.mode-toggle{display:inline-grid;grid-template-columns:repeat(2,1fr);gap:8px;padding:6px;border-radius:999px;background:#ffffff0f;margin-bottom:18px;width:fit-content}.mode-button,.ghost-button,.danger-button,.checkpoint-actions button{border:none;border-radius:999px;padding:10px 18px;background:#ffffff14;color:#f7fbff;transition:background-color .14s ease,border-color .14s ease,color .14s ease;white-space:nowrap}.mode-button.active{background:linear-gradient(135deg,#ffb349,#ff7d6d);color:#112132}.mode-button:hover,.ghost-button:hover,.danger-button:hover,.checkpoint-actions button:hover{background:#ffffff24}.mode-button.active:hover{background:linear-gradient(135deg,#ffbf66,#ff936f);color:#112132}.ghost-button{background:#7ef7c61f}.ghost-button:hover{background:#7ef7c633}.danger-button{background:#ff8ca824}.danger-button:hover{background:#ff8ca83d}.range-row{display:grid;grid-template-columns:minmax(110px,auto) minmax(0,1fr) auto;align-items:center;gap:16px;margin-bottom:18px;min-width:0}.range-row strong{min-width:2ch;text-align:right}.config-grid{display:grid;grid-template-columns:1fr;gap:12px;margin-bottom:18px}.point-grid{display:grid;grid-template-columns:1fr;gap:16px;min-width:0}.point-card{margin:0;border:1px solid rgba(157,215,255,.14);border-radius:18px;padding:14px;min-width:0}.point-card legend{padding:0 8px;color:#ffb349}.coordinate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;min-width:0}label{display:grid;gap:6px;min-width:0}label span{font-size:.86rem;color:#bdd0df}.checkbox-row{display:flex;align-items:center;gap:10px}.checkbox-row input{width:auto}input,select,textarea{border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:10px 12px;background:#030a13cc;color:#f7fbff;width:100%;min-width:0}select{-webkit-appearance:none;-moz-appearance:none;appearance:none}textarea{resize:vertical}.checkpoint-list{display:grid;gap:14px}.checkpoint-item{border:1px solid rgba(255,179,73,.14);border-radius:18px;padding:14px;background:#ffffff08;min-width:0}.checkpoint-topline{display:grid;grid-template-columns:1fr;gap:12px;margin-bottom:14px;min-width:0}.checkpoint-actions{display:flex;gap:8px;flex-wrap:wrap;min-width:0}.checkpoint-add-button{width:100%;justify-content:center;margin-top:16px}.muted-note,.error-note,.warning-note{margin:0;font-size:.92rem}.muted-note{color:#bdd0df}.warning-stack{display:grid;gap:8px;margin-bottom:14px}.warning-note{padding:12px 14px;border-radius:14px;background:#ffb3491f;color:#ffe2b8}.visualizer-panel{min-height:720px;width:100%;min-width:0;max-width:100%;position:relative;z-index:0;isolation:isolate;overflow:hidden}.canvas-shell{height:680px;width:100%;max-width:100%;border-radius:20px;overflow:hidden;border:1px solid rgba(157,215,255,.14);position:relative}.canvas-shell>div,.canvas-shell canvas{display:block;width:100%!important;height:100%!important}.canvas-shell>div{overflow:hidden}.export-list{margin:0;padding:0;list-style:none;display:grid;gap:10px}.export-item{display:grid;gap:10px;padding:14px 16px;border-radius:16px;background:#030a13d6;border:1px solid rgba(157,215,255,.08);overflow-wrap:anywhere;transition:background-color .14s ease,border-color .14s ease,box-shadow .14s ease}.export-item.active{background:#244058eb;border-color:#7ef7c65c;box-shadow:inset 0 0 0 1px #7ef7c61f}.waypoint-index{color:#d8eefc;font-size:.92rem;font-weight:700;letter-spacing:.03em}.export-timestamp{color:#9fb9ce;font-size:.88rem;margin-top:-4px}.json-export-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;justify-content:flex-start;margin-bottom:12px}.export-mode-note{color:#bdd0df;font-size:.9rem}.active-action-button{background:#fff0a8;color:#182230}.json-export-textarea{min-height:260px;margin-bottom:16px;font-family:Consolas,Courier New,monospace;line-height:1.45}.export-row{display:flex;align-items:flex-start;gap:12px}.export-label{color:#ffb349;display:inline-block;flex:0 0 150px;width:150px;padding-top:6px}.export-values{display:flex;flex-wrap:wrap;gap:8px;min-width:0}.coord-chip{border:1px solid rgba(157,215,255,.18);border-radius:999px;padding:6px 10px;background:#152534eb;color:#d8eefc;cursor:pointer;font-weight:600;transition:background-color .14s ease,border-color .14s ease,color .14s ease,box-shadow .14s ease}.coord-chip:hover{background:#223a50fa;border-color:#9dd7ff57;color:#fff}.coord-chip.active{background:#fff0a8;border-color:#ffd15c;color:#182230;box-shadow:0 0 0 2px #ffd15c2e}.preview-legend{display:flex;flex-wrap:wrap;gap:10px 16px;margin-top:8px}.legend-item{display:inline-flex;align-items:center;gap:8px;color:#bdd0df;font-size:.92rem}.legend-dot{width:10px;height:10px;border-radius:999px;display:inline-block}.control-dot{background:#ffb349}.path-dot{background:#7ef7c6}.target-dot{background:#ff526d}.scene-label{padding:6px 10px;border-radius:999px;font-size:.78rem;letter-spacing:.04em;white-space:nowrap}.target-scene-label{border:1px solid rgba(255,82,109,.34);background:#0c0c14c7;color:#ffd0d8}.checkpoint-scene-label{border:1px solid rgba(255,179,73,.28);background:#15140ed1;color:#ffd8a1}@media(max-width:1100px){.workspace-grid{grid-template-columns:1fr}.visualizer-panel{min-height:480px}.canvas-shell{height:440px}}@media(max-width:720px){.app-shell{padding:18px 14px 28px}.hero-card,.panel{padding:16px;border-radius:20px}.coordinate-grid,.point-grid,.checkpoint-topline{grid-template-columns:1fr}.section-header{flex-direction:column}.preview-legend{flex-direction:column;align-items:flex-start}.export-row{flex-direction:column;gap:6px}.export-label{width:auto;flex-basis:auto;padding-top:0}}