:root{--bg-primary:#0a0e1a;--bg-secondary:#111827;--bg-card:#111827;--bg-input:#0d1117;--border:#1e293b;--border-hover:#334155;--text-primary:#e2e8f0;--text-secondary:#94a3b8;--text-muted:#64748b;--blue-500:#3b82f6;--blue-600:#2563eb;--blue-400:#60a5fa;--blue-glow:rgba(59,130,246,.15);--green-500:#10b981;--green-glow:rgba(16,185,129,.15);--red-500:#ef4444;--red-glow:rgba(239,68,68,.15);--yellow-500:#f59e0b;--yellow-glow:rgba(245,158,11,.15);--radius:8px;--radius-lg:12px;--radius-xl:16px;--shadow:0 4px 24px rgba(0,0,0,.3);--transition:all .2s ease}
*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6}a{color:var(--blue-400);text-decoration:none;transition:var(--transition)}a:hover{color:var(--blue-500)}
.navbar{background:rgba(17,24,39,.8);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}
.navbar-brand{font-size:20px;font-weight:700;background:linear-gradient(135deg,var(--blue-500),var(--blue-400));-webkit-background-clip:text;-webkit-text-fill-color:transparent;text-decoration:none}
.navbar-nav{display:flex;align-items:center;gap:12px}
.navbar-user{display:flex;align-items:center;gap:10px;color:var(--text-secondary);font-size:14px}
.navbar-user .user-avatar{width:32px;height:32px;background:linear-gradient(135deg,var(--blue-500),var(--blue-400));border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:600;font-size:13px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:none;border-radius:var(--radius);font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:var(--transition);text-decoration:none;line-height:1}
.btn-sm{padding:6px 14px;font-size:13px}.btn-xs{padding:4px 10px;font-size:12px}.btn-lg{padding:14px 28px;font-size:16px}.btn-block{width:100%}
.btn-primary{background:var(--blue-500);color:#fff}.btn-primary:hover{background:var(--blue-600);box-shadow:0 0 20px var(--blue-glow)}
.btn-success{background:var(--green-500);color:#fff}.btn-success:hover{background:#059669}
.btn-danger{background:var(--red-500);color:#fff}.btn-danger:hover{background:#dc2626}
.btn-warning{background:var(--yellow-500);color:#000}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text-secondary)}.btn-outline:hover{border-color:var(--blue-500);color:var(--blue-400)}
.btn-ghost{background:transparent;color:var(--text-secondary);padding:8px 12px}.btn-ghost:hover{background:rgba(255,255,255,.05);color:var(--text-primary)}
.form-group{margin-bottom:16px}.form-label{display:block;font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:6px}
.form-control{width:100%;padding:10px 14px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-primary);font-size:14px;font-family:inherit;outline:none;transition:var(--transition)}
.form-control:focus{border-color:var(--blue-500);box-shadow:0 0 0 3px var(--blue-glow)}.form-control::placeholder{color:var(--text-muted)}.form-control-lg{padding:14px 18px;font-size:16px}
textarea.form-control{resize:vertical;min-height:80px}select.form-control{cursor:pointer}
.form-hint{font-size:12px;color:var(--text-muted);margin-top:4px}.form-row{display:flex;gap:12px}.form-row .form-group{flex:1}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:24px;transition:var(--transition)}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.card-header h2,.card-header h3{font-size:18px;font-weight:600}
.card-stat{text-align:center;padding:20px}.card-stat .stat-value{font-size:32px;font-weight:700;color:var(--blue-400);line-height:1}.card-stat .stat-label{font-size:13px;color:var(--text-muted);margin-top:4px}
.alert{padding:12px 16px;border-radius:var(--radius);font-size:14px;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.alert-success{background:var(--green-glow);border:1px solid rgba(16,185,129,.2);color:#6ee7b7}
.alert-error{background:var(--red-glow);border:1px solid rgba(239,68,68,.2);color:#fca5a5}
.alert-warning{background:var(--yellow-glow);border:1px solid rgba(245,158,11,.2);color:#fcd34d}
.alert-info{background:var(--blue-glow);border:1px solid rgba(59,130,246,.2);color:#93c5fd}
.table-wrapper{overflow-x:auto}table{width:100%;border-collapse:collapse}
th{text-align:left;font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;padding:12px 16px;border-bottom:1px solid var(--border)}
td{padding:12px 16px;font-size:14px;border-bottom:1px solid rgba(30,41,59,.5);vertical-align:middle}tr:hover td{background:rgba(59,130,246,.03)}
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:500}
.badge-blue{background:var(--blue-glow);color:var(--blue-400)}.badge-green{background:var(--green-glow);color:var(--green-500)}
.badge-red{background:var(--red-glow);color:var(--red-500)}.badge-yellow{background:var(--yellow-glow);color:var(--yellow-500)}
.badge-gray{background:rgba(100,116,139,.15);color:var(--text-muted)}
.hero{text-align:center;padding:80px 24px 60px;max-width:720px;margin:0 auto}
.hero h1{font-size:48px;font-weight:700;line-height:1.1;margin-bottom:16px}
.hero h1 .gradient{background:linear-gradient(135deg,var(--blue-500),var(--blue-400),#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:18px;color:var(--text-secondary);max-width:500px;margin:0 auto 40px}
.shortener-box{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:32px;max-width:600px;margin:0 auto}
.shortener-input-group{display:flex;gap:8px;margin-bottom:12px}.shortener-input-group .form-control{flex:1}
.slug-preview{display:flex;align-items:center;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.slug-preview .prefix{padding:10px 12px;color:var(--text-muted);font-size:14px;border-right:1px solid var(--border);white-space:nowrap;background:rgba(30,41,59,.3)}
.slug-preview input{border:none;background:transparent;padding:10px 12px;color:var(--text-primary);font-size:14px;font-family:inherit;outline:none;flex:1;min-width:0}
.slug-status{font-size:12px;margin-top:4px;min-height:18px}.slug-status.available{color:var(--green-500)}.slug-status.taken{color:var(--red-500)}
.result-box{display:none;background:rgba(16,185,129,.05);border:1px solid rgba(16,185,129,.2);border-radius:var(--radius-lg);padding:24px;margin-top:20px;text-align:center}
.result-box .short-url{font-size:22px;font-weight:700;color:var(--blue-400);word-break:break-all;margin-bottom:12px}
.result-actions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:12px}
.result-qr{margin-top:16px}.result-qr img{border-radius:var(--radius);background:#fff;padding:8px}
.dashboard-layout{display:flex;min-height:calc(100vh - 64px)}
.sidebar{width:240px;background:var(--bg-secondary);border-right:1px solid var(--border);padding:20px 0;flex-shrink:0}
.sidebar-nav{list-style:none}
.sidebar-nav a{display:flex;align-items:center;gap:10px;padding:10px 24px;color:var(--text-secondary);font-size:14px;transition:var(--transition)}
.sidebar-nav a:hover{background:rgba(59,130,246,.05);color:var(--text-primary)}
.sidebar-nav a.active{background:rgba(59,130,246,.1);color:var(--blue-400);border-right:2px solid var(--blue-500)}
.sidebar-nav .nav-section{font-size:11px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;padding:20px 24px 8px}
.dashboard-content{flex:1;padding:24px;overflow-y:auto}
.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.page-header h1{font-size:24px;font-weight:600}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.modal-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);z-index:1000;align-items:center;justify-content:center}
.modal-overlay.active{display:flex}
.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-xl);padding:32px;width:100%;max-width:480px;max-height:90vh;overflow-y:auto;position:relative}
.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.modal-header h3{font-size:18px;font-weight:600}
.modal-close{background:none;border:none;color:var(--text-muted);font-size:24px;cursor:pointer;padding:4px}.modal-close:hover{color:var(--text-primary)}
.pagination{display:flex;gap:4px;justify-content:center;margin-top:20px}
.pagination a,.pagination span{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius);font-size:14px;color:var(--text-secondary);background:var(--bg-card);border:1px solid var(--border);transition:var(--transition)}
.pagination a:hover{border-color:var(--blue-500);color:var(--blue-400)}
.pagination .active{background:var(--blue-500);color:#fff;border-color:var(--blue-500)}
.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.auth-box{width:100%;max-width:420px}.auth-box .card{padding:32px}
.auth-header{text-align:center;margin-bottom:24px}.auth-header h2{font-size:22px;font-weight:600;margin-bottom:4px}.auth-header p{color:var(--text-muted);font-size:14px}
.auth-footer{text-align:center;margin-top:16px;font-size:14px;color:var(--text-muted)}
.features{max-width:900px;margin:0 auto 60px;padding:0 24px}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;transition:var(--transition)}
.feature-card:hover{border-color:var(--border-hover);transform:translateY(-2px)}
.feature-icon{font-size:28px;margin-bottom:12px}.feature-card h3{font-size:16px;font-weight:600;margin-bottom:6px}.feature-card p{font-size:14px;color:var(--text-secondary)}
.footer{border-top:1px solid var(--border);padding:24px;text-align:center;font-size:13px;color:var(--text-muted)}
.footer a{color:var(--text-secondary)}.footer a:hover{color:var(--blue-400)}
@media(max-width:768px){.hero h1{font-size:32px}.hero p{font-size:16px}.shortener-input-group{flex-direction:column}.sidebar{display:none}.dashboard-content{padding:16px}.form-row{flex-direction:column}.page-header{flex-direction:column;gap:12px;align-items:flex-start}.stats-grid{grid-template-columns:repeat(2,1fr)}.navbar{padding:0 16px}}
.text-center{text-align:center}.text-muted{color:var(--text-muted)}.text-small{font-size:13px}.text-blue{color:var(--blue-400)}.text-green{color:var(--green-500)}.text-red{color:var(--red-500)}
.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}
.d-flex{display:flex}.align-center{align-items:center}.justify-between{justify-content:space-between}.w-full{width:100%}.hidden{display:none!important}
.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:250px}
.spinner{display:inline-block;width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--blue-500);border-radius:50%;animation:spin .6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.copy-feedback{position:fixed;top:20px;right:20px;background:var(--green-500);color:#fff;padding:10px 20px;border-radius:var(--radius);font-size:14px;font-weight:500;z-index:2000;animation:fadeInOut 2s ease forwards}
@keyframes fadeInOut{0%{opacity:0;transform:translateY(-10px)}15%{opacity:1;transform:translateY(0)}85%{opacity:1}100%{opacity:0}}