:root{--bg-primary: #0a0a1a;--bg-secondary: #111128;--bg-tertiary: #1a1a3e;--bg-card: rgba(255, 255, 255, .04);--bg-card-hover: rgba(255, 255, 255, .08);--accent: #00d4ff;--accent-glow: rgba(0, 212, 255, .25);--accent-secondary: #7c3aed;--text-primary: #ffffff;--text-secondary: #94a3b8;--text-muted: #64748b;--border-subtle: rgba(255, 255, 255, .08);--border-accent: rgba(0, 212, 255, .3);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--shadow-glow: 0 0 40px rgba(0, 212, 255, .15);--shadow-card: 0 4px 24px rgba(0, 0, 0, .4);--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--max-width: 1200px}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{opacity:.85}.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;font-family:var(--font);font-size:.95rem;font-weight:700;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all .25s ease}.btn-primary{background:var(--accent);color:var(--bg-primary)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border-subtle)}.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--border-accent)}.btn-sm{padding:6px 16px;font-size:.8rem}.btn-link{background:none;border:none;color:var(--accent);cursor:pointer;font-family:var(--font);font-size:.85rem;font-weight:600;padding:0}.btn-link:hover{text-decoration:underline}.glass-card{background:var(--bg-card);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:32px;transition:transform .3s,border-color .3s,background .3s}.glass-card:hover{transform:translateY(-4px);border-color:var(--border-accent);background:var(--bg-card-hover)}.spinner{width:32px;height:32px;border:3px solid var(--border-subtle);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin:40px auto}@keyframes spin{to{transform:rotate(360deg)}}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(ellipse at 30% 20%,rgba(0,212,255,.06) 0%,transparent 50%),radial-gradient(ellipse at 70% 80%,rgba(124,58,237,.04) 0%,transparent 50%),var(--bg-primary)}.login-card{max-width:440px;width:100%;text-align:center}.login-logo{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:48px}.login-logo svg{width:32px;height:32px}.login-logo span{font-size:1.3rem;font-weight:800}.login-card h1{font-size:2rem;font-weight:800;margin-bottom:8px;letter-spacing:-.02em}.login-subtitle{color:var(--text-secondary);margin-bottom:32px}.login-form{display:flex;flex-direction:column;gap:12px}.login-form input[type=email]{padding:14px 20px;font-family:var(--font);font-size:1rem;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-primary);outline:none;transition:border-color .2s;text-align:center}.login-form input[type=email]::placeholder{color:var(--text-muted)}.login-form input[type=email]:focus{border-color:var(--accent)}.login-success{padding:32px;background:#00d4ff0f;border:1px solid rgba(0,212,255,.15);border-radius:var(--radius-lg)}.login-success .success-icon{width:56px;height:56px;background:#00d4ff1a;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:1.5rem;color:var(--accent)}.login-success h2{font-size:1.3rem;margin-bottom:12px}.login-success p{color:var(--text-secondary);font-size:.95rem}.login-hint{font-size:.85rem!important;color:var(--text-muted)!important;margin-top:12px}.login-error{padding:12px 20px;background:#ff50501a;border:1px solid rgba(255,80,80,.2);border-radius:var(--radius-md);color:#ff5050;font-size:.9rem;margin-top:12px}.login-footer{margin-top:48px;font-size:.8rem;color:var(--text-muted);line-height:1.8}.viewer-shell,.admin-shell,.doc-list-page{min-height:100vh;display:flex;flex-direction:column}.viewer-nav{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:56px;background:#0a0a1aeb;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-subtle)}.viewer-nav-left{display:flex;align-items:center;gap:10px}.viewer-logo{width:24px;height:24px}.viewer-doc-title{font-size:.9rem;font-weight:700}.viewer-nav-right{display:flex;align-items:center;gap:12px}.viewer-user{font-size:.8rem;color:var(--text-muted)}.viewer-content{flex:1;padding:0;overflow-y:auto}.viewer-document{max-width:900px;margin:0 auto;padding:40px 32px;background:var(--bg-secondary);min-height:100vh}.viewer-iframe{width:100%;height:calc(100vh - 88px);border:none;background:#000}.viewer-loading{text-align:center;padding:80px 24px}.viewer-loading p{color:var(--text-muted);margin-top:16px;font-size:.9rem}.viewer-error{text-align:center;padding:80px 24px}.viewer-error h1,.viewer-error h2{font-size:1.5rem;margin-bottom:12px}.viewer-error p{color:var(--text-secondary);margin-bottom:24px}.viewer-hint{font-size:.85rem;color:var(--text-muted)}.viewer-confidential{text-align:center;padding:12px;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.15em;color:var(--text-muted);border-top:1px solid var(--border-subtle)}.watermark-overlay{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:9998;overflow:hidden;display:flex;flex-direction:column;justify-content:space-around}.watermark-line{font-size:1.2rem;font-family:var(--font);font-weight:600;color:#ffffff08;white-space:nowrap;transform:rotate(-35deg);text-align:center;letter-spacing:.15em;-webkit-user-select:none;user-select:none}.doc-list-content{max-width:800px;margin:0 auto;padding:60px 24px}.doc-list-content h1{font-size:1.8rem;margin-bottom:8px;letter-spacing:-.02em}.doc-list-subtitle{color:var(--text-secondary);margin-bottom:40px}.doc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.doc-card{display:block;color:var(--text-primary);text-decoration:none;cursor:pointer}.doc-card:hover{opacity:1}.doc-card-icon{font-size:2rem;margin-bottom:16px}.doc-card h3{font-size:1.1rem;font-weight:700;margin-bottom:8px}.doc-card p{font-size:.9rem;color:var(--text-secondary)}.admin-content{max-width:var(--max-width);margin:0 auto;padding:40px 24px}.admin-section{margin-bottom:48px}.admin-section h2{font-size:1.3rem;font-weight:700;margin-bottom:20px;letter-spacing:-.01em}.admin-section h3{font-size:1rem;font-weight:600;margin:20px 0 12px;color:var(--text-secondary)}.admin-table-container{overflow-x:auto}.admin-table{width:100%;border-collapse:collapse;font-size:.85rem}.admin-table th{text-align:left;padding:10px 16px;font-weight:600;font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);border-bottom:1px solid var(--border-subtle)}.admin-table td{padding:12px 16px;color:var(--text-secondary);border-bottom:1px solid var(--border-subtle)}.admin-table tr:hover td{background:var(--bg-card)}.admin-empty{color:var(--text-muted);font-size:.9rem;padding:24px 0}.admin-error{color:#ff5050;font-size:.9rem}.monospace{font-family:SF Mono,Fira Code,monospace;font-size:.8rem}.invite-form{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.admin-select{padding:10px 16px;font-family:var(--font);font-size:.9rem;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-primary);outline:none}.invite-form input[type=email]{flex:1;min-width:200px;padding:10px 16px;font-family:var(--font);font-size:.9rem;background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-primary);outline:none}.invite-form input[type=email]::placeholder{color:var(--text-muted)}.invite-form input[type=email]:focus,.admin-select:focus{border-color:var(--accent)}.invite-result{margin-top:12px;padding:12px 20px;border-radius:var(--radius-md);font-size:.85rem}.invite-success{background:#00d4ff14;border:1px solid rgba(0,212,255,.15);color:var(--accent)}.invite-error{background:#ff50501a;border:1px solid rgba(255,80,80,.2);color:#ff5050}.admin-badge{display:inline-flex;align-items:center;justify-content:center;min-width:22px;height:22px;padding:0 6px;background:#ff5050;color:#fff;font-size:.7rem;font-weight:700;border-radius:11px;margin-left:8px;vertical-align:middle}.admin-badge:empty{display:none}.login-requested{padding:32px;background:#7c3aed0f;border:1px solid rgba(124,58,237,.15);border-radius:var(--radius-lg)}.login-requested h2{font-size:1.3rem;margin-bottom:12px}.login-requested p{color:var(--text-secondary);font-size:.95rem}.heatmap{display:flex;flex-direction:column;gap:4px}.heatmap-bar{display:flex;align-items:center;gap:8px;height:28px}.heatmap-page{width:32px;font-size:.7rem;font-weight:600;color:var(--text-muted);text-align:right;flex-shrink:0}.heatmap-fill{height:20px;background:linear-gradient(90deg,#00d4ff26,rgba(0,212,255,calc(.15 + var(--intensity) * .6)));border-radius:4px;min-width:4px;transition:width .3s ease}.heatmap-time{font-size:.7rem;color:var(--text-muted);white-space:nowrap}@media(max-width:768px){.viewer-nav{padding:0 12px;height:48px}.viewer-user{display:none}.viewer-document{padding:20px 16px}.doc-grid{grid-template-columns:1fr}.invite-form{flex-direction:column}.invite-form input[type=email]{width:100%}}