:root{--bg: #0f1117;--surface: #1a1d27;--border: #2a2d3a;--text: #e2e8f0;--text-muted: #6c7a9c;--accent: #4f8ef7;--accent-hover: #3a7ae0;--danger: #e05252;--success: #3fb950;--radius: 6px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:14px;line-height:1.5;min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;border:none;border-radius:var(--radius);padding:8px 16px;font-size:14px;font-family:var(--font);background:var(--accent);color:#fff;transition:background .15s}button:hover{background:var(--accent-hover)}button:disabled{opacity:.5;cursor:not-allowed}button.secondary{background:var(--surface);border:1px solid var(--border);color:var(--text)}button.secondary:hover{background:var(--border)}button.danger{background:var(--danger)}input,select{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:14px;font-family:var(--font);padding:8px 12px;width:100%;outline:none}input:focus,select:focus{border-color:var(--accent)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.page{max-width:640px;margin:32px auto;padding:0 16px}.error{color:var(--danger);font-size:13px;margin-top:6px}.auth-page{display:flex;align-items:center;justify-content:center;height:100%}.auth-card{width:100%;max-width:360px}.auth-card h1{font-size:20px;font-weight:600;margin-bottom:24px}.form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.form-group label{font-size:13px;color:var(--text-muted)}.auth-card button[type=submit]{width:100%;margin-top:8px}.auth-footer{margin-top:16px;text-align:center;color:var(--text-muted);font-size:13px}.create-lobby-wrapper{display:flex;flex-direction:column;align-items:center;padding:40px 16px 48px;width:100%}.create-lobby-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:32px}.create-lobby-heading{text-align:center;margin-bottom:28px}.create-lobby-heading h1{font-size:22px;font-weight:700;margin-bottom:6px}.create-lobby-subtitle{color:var(--text-muted);font-size:13px}.drop-zone{border:2px dashed var(--border);border-radius:10px;padding:36px 24px;text-align:center;cursor:pointer;background:var(--bg);transition:border-color .15s,background .15s;margin-bottom:20px}.drop-zone:hover,.drop-zone--active{border-color:var(--accent);background:#4f8ef70d}.drop-zone--has-file{border-color:var(--success);background:#3fb9500d}.drop-zone-icon{font-size:28px;color:var(--text-muted);margin-bottom:12px;display:block}.drop-zone-icon--ready{color:var(--success)}.drop-zone-label{font-size:15px;font-weight:500;margin-bottom:4px}.drop-zone-filename{font-size:14px;font-weight:500;margin-bottom:4px;word-break:break-all}.drop-zone-hint{font-size:12px;color:var(--text-muted)}.create-lobby-field{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}.create-lobby-submit{width:100%;padding:12px;font-size:15px;font-weight:600;border-radius:8px}.lobby-header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:24px}.lobby-header-left{flex:1;min-width:0}.lobby-header h1{font-size:22px;font-weight:700;line-height:1.35;word-break:break-word;margin-bottom:4px}.lobby-id{font-size:12px;color:var(--text-muted);font-family:monospace}.participant-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}.participant-row{display:flex;align-items:center;gap:12px;padding:10px 12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}.participant-name{flex:1;font-size:14px}.participant-progress{flex:2}.share-link-box{display:flex;gap:8px;align-items:center;margin-top:12px}.share-link-box input{font-family:monospace;font-size:12px}.copy-link-btn{white-space:nowrap;display:flex;align-items:center;gap:8px;padding:8px 16px}.participants-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 24px;text-align:center;gap:12px}.participants-empty-icon{width:56px;height:56px;border-radius:50%;background:var(--border);display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--text-muted);margin-bottom:4px}.participants-empty-title{font-size:15px;font-style:italic;color:var(--text)}.participants-empty-subtitle{font-size:13px;color:var(--text-muted)}.section-label{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);font-weight:600;margin-bottom:8px}.progress-bar-track{background:var(--border);border-radius:4px;height:6px;overflow:hidden}.progress-bar-fill{background:var(--accent);height:100%;border-radius:4px;transition:width .15s ease}.status-badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;padding:3px 10px;border-radius:12px}.status-badge.waiting{background:#6c7a9c26;color:var(--text-muted)}.status-badge.ready{background:#4f8ef726;color:var(--accent)}.status-badge.done{background:#3fb95026;color:var(--success)}.status-badge.failed{background:#e0525226;color:var(--danger)}.status-badge.disconnected{background:#6c7a9c26;color:var(--text-muted)}.admin-page h1{font-size:20px;font-weight:600;margin-bottom:24px}.admin-section{margin-bottom:32px}.admin-section h2{font-size:15px;font-weight:600;margin-bottom:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:12px}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border);font-size:13px}.data-table th{color:var(--text-muted);font-weight:500}.data-table tr:last-child td{border-bottom:none}.table-actions{display:flex;gap:8px;align-items:center;margin-bottom:12px}.table-actions input{max-width:240px}.badge{display:inline-block;padding:2px 8px;border-radius:12px;font-size:11px;font-weight:500}.badge.used{background:var(--border);color:var(--text-muted)}.badge.active{background:#3fb95026;color:var(--success)}.navbar{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 24px;background:var(--surface);border-bottom:1px solid var(--border)}.navbar-logo{display:flex;align-items:center;gap:10px;text-decoration:none}.navbar-logo:hover{text-decoration:none;opacity:.85}.navbar-logo img{display:block;flex-shrink:0}.navbar-brand{font-size:15px;font-weight:600;color:var(--text);letter-spacing:-.01em;white-space:nowrap}.navbar-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.navbar-email{color:var(--text-muted);font-size:13px;margin-right:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:200px}@media (max-width: 600px){.navbar-email,.navbar-btn-label{display:none}.navbar-btn{padding:8px 10px}}.footer{border-top:1px solid var(--border);padding:20px 24px;text-align:center;color:var(--text-muted);font-size:12px}#app-root{display:grid;grid-template-rows:auto 1fr auto;min-height:100vh}