:root{color-scheme:dark;--bg: #0b1020;--panel: rgba(16, 22, 40, .92);--border: rgba(140, 170, 220, .28);--text: #e8eefc;--muted: #9aabc8;--accent: #6cb6ff;--btn: #1a2744;--btn-hover: #243656;font-family:IBM Plex Sans,Segoe UI,sans-serif}*{box-sizing:border-box}html,body{margin:0;height:100%;background:radial-gradient(ellipse at 30% 20%,#152044 0%,var(--bg) 55%);color:var(--text);overflow:hidden}#app{position:relative;width:100%;height:100%}#bloch-canvas{display:block;width:100%;height:100%}#panel{position:absolute;top:16px;right:16px;width:min(320px,calc(100vw - 32px));max-height:calc(100vh - 32px);overflow:auto;padding:16px;border:1px solid var(--border);border-radius:12px;background:var(--panel);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:0 12px 40px #00000059}#panel h1{margin:0 0 4px;font-size:1.15rem;font-weight:600;letter-spacing:.02em}#panel .subtitle{margin:0 0 14px;color:var(--muted);font-size:.85rem;line-height:1.35}#panel h2{margin:14px 0 8px;font-size:.78rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.gate-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.gate-grid button,.actions button{appearance:none;border:1px solid var(--border);border-radius:8px;background:var(--btn);color:var(--text);padding:8px 6px;font:inherit;font-size:.9rem;cursor:pointer;transition:background .15s ease,border-color .15s ease}.gate-grid button:hover,.actions button:hover{background:var(--btn-hover);border-color:var(--accent)}.actions{display:flex;gap:6px}.actions button{flex:1}.angle-row{display:flex;align-items:center;gap:10px;margin-top:8px}.angle-row label{color:var(--muted);font-size:.85rem;white-space:nowrap}.angle-row input[type=range]{flex:1;accent-color:var(--accent)}.angle-row output{min-width:3.2rem;text-align:right;font-variant-numeric:tabular-nums;color:var(--accent);font-size:.85rem}.readout{margin-top:4px;padding:10px 12px;border-radius:8px;background:#00000047;border:1px solid var(--border);font-family:IBM Plex Mono,SF Mono,ui-monospace,monospace;font-size:.8rem;line-height:1.55;white-space:pre-wrap;word-break:break-word}#gate-matrix{white-space:pre;font-variant-numeric:tabular-nums}.hint{margin:12px 0 0;color:var(--muted);font-size:.78rem;line-height:1.4}