:root{--bg: #0b0d0c;--bg-raised: #131614;--bg-input: #181b19;--border: #262a27;--border-focus: #3a8f6b;--text: #e9ece9;--text-dim: #8a9189;--text-faint: #565c58;--signal: #4fae84;--signal-bright: #6fd6a3;--danger: #c1654f;--font-display: "IBM Plex Sans", system-ui, -apple-system, sans-serif;--font-body: "Inter", system-ui, -apple-system, sans-serif;--font-mono: "IBM Plex Mono", "SF Mono", Consolas, monospace}@media (prefers-reduced-motion: no-preference){.pulse{animation:pulse 2.4s ease-in-out infinite}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.45}}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:var(--font-body);font-size:15px;line-height:1.5}body{min-height:100vh;display:flex;flex-direction:column}a{color:var(--signal-bright);text-decoration:none}a:hover{text-decoration:underline}:focus-visible{outline:2px solid var(--border-focus);outline-offset:2px}.shell{max-width:480px;width:100%;margin:0 auto;padding:48px 24px;flex:1;display:flex;flex-direction:column;justify-content:center}.shell-wide{max-width:880px}.brand{font-family:var(--font-mono);font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-faint);margin-bottom:32px;display:flex;align-items:center;gap:8px}.brand:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--signal)}h1{font-family:var(--font-display);font-size:28px;font-weight:600;letter-spacing:-.01em;margin:0 0 8px}h2{font-family:var(--font-display);font-size:18px;font-weight:600;margin:0 0 4px}p.lead{color:var(--text-dim);margin:0 0 32px}label{display:block;font-size:13px;color:var(--text-dim);margin-bottom:6px}input[type=email],input[type=password],input[type=text]{width:100%;background:var(--bg-input);border:1px solid var(--border);border-radius:6px;padding:11px 13px;color:var(--text);font-family:var(--font-body);font-size:15px;margin-bottom:18px;transition:border-color .15s ease}input::placeholder{color:var(--text-faint)}input:focus{border-color:var(--border-focus);outline:none}.field-code input{font-family:var(--font-mono);font-size:22px;letter-spacing:.08em;text-align:center;text-transform:uppercase}button{font-family:var(--font-body);font-size:15px;font-weight:500;border-radius:6px;border:none;cursor:pointer;padding:12px 20px;transition:opacity .15s ease,transform .05s ease}button:active{transform:scale(.99)}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--signal);color:#07140d;width:100%}.btn-primary:hover:not(:disabled){background:var(--signal-bright)}.btn-secondary{background:transparent;color:var(--text);border:1px solid var(--border);width:100%}.btn-secondary:hover{border-color:var(--text-dim)}.btn-danger-ghost{background:transparent;color:var(--danger);border:1px solid var(--border)}.switch-line{text-align:center;margin-top:20px;font-size:14px;color:var(--text-dim)}.error-banner{background:#c1654f1f;border:1px solid rgba(193,101,79,.35);color:#e0a293;border-radius:6px;padding:10px 13px;font-size:13.5px;margin-bottom:18px;display:none}.error-banner.show{display:block}.card{background:var(--bg-raised);border:1px solid var(--border);border-radius:10px;padding:24px}.code-display{font-family:var(--font-mono);font-size:36px;letter-spacing:.1em;text-align:center;color:var(--signal-bright);background:var(--bg-input);border:1px dashed var(--border);border-radius:8px;padding:24px;margin:20px 0}.muted-mono{font-family:var(--font-mono);font-size:12px;color:var(--text-faint)}.device-row{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--border)}.device-row:last-child{border-bottom:none}.device-name{font-weight:500}.device-meta{font-size:13px;color:var(--text-faint);font-family:var(--font-mono)}.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:6px}.status-dot.online{background:var(--signal)}.status-dot.offline{background:var(--text-faint)}.topbar{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border)}.empty-state{text-align:center;padding:48px 24px;color:var(--text-dim)}.viewer-frame{width:100%;aspect-ratio:16 / 9;background:#000;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--text-faint);font-family:var(--font-mono);font-size:13px}