:root{--bg: #0a1422;--bg-2: #0f1d31;--panel: rgba(255, 255, 255, .04);--panel-border: rgba(255, 255, 255, .1);--ink: #eaf1fb;--ink-dim: #9fb0c6;--accent: #38bdf8;--accent-2: #22d3ee;--warn: #f59e0b;--good: #34d399;--danger: #fb7185;--radius: 18px;font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--ink)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:radial-gradient(1100px 700px at 80% -10%,rgba(56,189,248,.1),transparent 60%),radial-gradient(900px 600px at -10% 110%,rgba(34,211,238,.08),transparent 60%),var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}a{color:var(--accent)}button{font-family:inherit}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid transparent;border-radius:12px;background:linear-gradient(100deg,var(--accent),var(--accent-2));color:#04121f;font-weight:700;padding:11px 18px;font-size:15px;cursor:pointer;transition:filter .15s ease,transform .05s ease}.btn:hover{filter:brightness(1.07)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.ghost{background:transparent;border-color:var(--panel-border);color:var(--ink)}.btn.subtle{background:#ffffff0f;color:var(--ink)}.btn.danger{background:linear-gradient(100deg,#fb7185,#f43f5e);color:#1a0509}.input{width:100%;background:#ffffff0d;border:1px solid var(--panel-border);border-radius:12px;color:var(--ink);padding:12px 14px;font-size:15px;outline:none}.input:focus{border-color:var(--accent)}label.field{display:block;margin-bottom:12px}label.field span{display:block;font-size:13px;color:var(--ink-dim);margin-bottom:6px}.panel{background:var(--panel);border:1px solid var(--panel-border);border-radius:var(--radius);padding:20px}.muted{color:var(--ink-dim)}.error{color:var(--danger);font-size:14px}.pill{display:inline-block;font-size:12px;padding:3px 9px;border-radius:999px;border:1px solid var(--panel-border);color:var(--ink-dim)}.pill.warn{color:var(--warn);border-color:#f59e0b66;background:#f59e0b14}.pill.good{color:var(--good);border-color:#34d39966;background:#34d39914}.center-wrap{min-height:100%;display:grid;place-items:center;padding:24px}.auth-card{width:100%;max-width:420px}.brand-mark{font-size:26px;font-weight:800;letter-spacing:-.02em;color:var(--accent)}.brand-sub{color:var(--ink-dim);font-size:14px;margin-top:4px}.tabs{display:flex;gap:8px;margin:18px 0}.tabs .btn{flex:1}.admin-shell{min-height:100%;display:grid;grid-template-columns:232px 1fr}.admin-nav{background:var(--bg-2);border-right:1px solid var(--panel-border);padding:22px 16px}.admin-nav .nav-brand{font-weight:800;color:var(--accent);margin-bottom:22px;font-size:19px}.admin-nav a{display:block;padding:10px 12px;border-radius:10px;color:var(--ink-dim);text-decoration:none;margin-bottom:4px;font-size:15px}.admin-nav a.active,.admin-nav a:hover{background:#ffffff0f;color:var(--ink)}.admin-main{padding:28px 32px;overflow:auto}.admin-main h1{font-size:24px;margin:0 0 4px}.row{display:flex;gap:12px;align-items:center}.spread{display:flex;justify-content:space-between;align-items:center}table.grid{width:100%;border-collapse:collapse}table.grid th{text-align:left;font-size:12px;color:var(--ink-dim);padding:8px 10px;font-weight:600}table.grid td{padding:12px 10px;border-top:1px solid var(--panel-border);font-size:14px}table.grid tr.clickable{cursor:pointer}table.grid tr.clickable:hover td{background:#ffffff08}.subtabs{display:flex;gap:8px;margin:16px 0;border-bottom:1px solid var(--panel-border)}.subtabs button{background:none;border:none;color:var(--ink-dim);padding:10px 4px;cursor:pointer;border-bottom:2px solid transparent;font-size:15px}.subtabs button.active{color:var(--ink);border-bottom-color:var(--accent)}.bubble{padding:10px 14px;border-radius:14px;margin:6px 0;max-width:80%;font-size:15px;line-height:1.4}.bubble.nova{background:#38bdf81f;border:1px solid rgba(56,189,248,.25)}.bubble.student{background:#ffffff0f;margin-left:auto}.kiosk{min-height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:28px;text-align:center}.kiosk h1{font-size:clamp(28px,5vw,48px);margin:0 0 8px}.kiosk .lead{color:var(--ink-dim);font-size:clamp(16px,2.4vw,22px);margin-bottom:28px}.name-grid{display:grid;gap:16px;width:100%;max-width:920px;grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}.name-tile{font-size:clamp(20px,3vw,28px);font-weight:700;padding:28px 16px;border-radius:22px;background:#ffffff0d;border:1px solid var(--panel-border);color:var(--ink);cursor:pointer;transition:transform .06s ease,background .15s ease}.name-tile:hover{background:#38bdf81f}.name-tile:active{transform:scale(.97)}.talk-stage{display:flex;flex-direction:column;align-items:center;gap:26px}.talk-caption{min-height:64px;max-width:760px;font-size:clamp(18px,2.6vw,26px);line-height:1.4}.talk-btn{width:clamp(150px,26vw,230px);height:clamp(150px,26vw,230px);border-radius:50%;border:none;cursor:pointer;color:#04121f;font-size:22px;font-weight:800;background:radial-gradient(circle at 50% 35%,#7dd3fc,#22d3ee 70%);box-shadow:0 18px 60px #38bdf859;transition:transform .08s ease}.talk-btn:active{transform:scale(.97)}.talk-btn.listening{background:radial-gradient(circle at 50% 35%,#fca5a5,#fb7185 70%);box-shadow:0 18px 60px #fb718566}.talk-btn:disabled{filter:grayscale(.4) brightness(.8);cursor:default}.kiosk-foot{position:fixed;bottom:14px;right:16px}.linkish{background:none;border:none;color:var(--ink-dim);cursor:pointer;font-size:13px;text-decoration:underline}