:root{--color-bg:#f8fafc;--color-bg-card:#fff;--color-bg-hover:#f1f5f9;--color-text:#1e293b;--color-text-secondary:#64748b;--color-text-muted:#94a3b8;--color-primary:#3b82f6;--color-primary-hover:#2563eb;--color-primary-light:#3b82f614;--color-border:#e2e8f0;--color-border-light:#f1f5f9;--color-success:#10b981;--color-success-light:#10b9811a;--color-warning:#f59e0b;--color-warning-light:#f59e0b1a;--color-error:#ef4444;--color-error-light:#ef44441a;--color-info:#3b82f6;--color-info-light:#3b82f61a;--sidebar-bg:#0f172a;--sidebar-width:260px;--sidebar-text:#ffffffb3;--sidebar-text-hover:#fff;--sidebar-active-bg:#3b82f626;--sidebar-active-text:#60a5fa;--radius-sm:6px;--radius-md:10px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px;--shadow-xs:0 1px 2px #0000000a;--shadow-sm:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 6px -1px #00000012, 0 2px 4px -2px #0000000d;--shadow-lg:0 10px 15px -3px #00000014, 0 4px 6px -4px #0000000a;--shadow-xl:0 20px 25px -5px #0000001a, 0 8px 10px -6px #0000000a;--shadow-card:0 1px 3px #0000000a, 0 0 0 1px #00000005;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-base:.2s cubic-bezier(.4, 0, .2, 1);--transition-slow:.3s cubic-bezier(.4, 0, .2, 1);--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-12:48px;--bottom-nav-height:64px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth;font-size:14px}body{background-color:var(--color-bg);color:var(--color-text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6;overflow-x:hidden}a{color:inherit;text-decoration:none}ul,ol{list-style:none}img{max-width:100%;display:block}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-text-muted)}.app-layout{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);z-index:100;flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0;overflow:hidden}.sidebar:before{content:"";z-index:1;background:linear-gradient(90deg,#3b82f6,#8b5cf6,#ec4899);height:3px;position:absolute;top:0;left:0;right:0}.sidebar-logo{border-bottom:1px solid #ffffff0f;align-items:center;gap:12px;padding:24px 24px 20px;display:flex}.sidebar-logo-icon{border-radius:var(--radius-md);color:#fff;background:linear-gradient(135deg,#3b82f6,#8b5cf6);flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;display:flex}.sidebar-logo h1{color:#fff;letter-spacing:-.03em;font-size:1.3rem;font-weight:700}.sidebar-nav{padding:var(--space-4) var(--space-3);flex-direction:column;flex:1;gap:2px;display:flex;overflow-y:auto}.sidebar-nav a{align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);color:var(--sidebar-text);transition:all var(--transition-base);font-size:.9rem;font-weight:500;display:flex;position:relative}.sidebar-nav a:hover{color:var(--sidebar-text-hover);background:#ffffff0f}.sidebar-nav a.active{background:var(--sidebar-active-bg);color:var(--sidebar-active-text);font-weight:600}.sidebar-nav a.active:before{content:"";background:var(--color-primary);border-radius:0 var(--radius-full) var(--radius-full) 0;width:3px;height:20px;position:absolute;top:50%;left:0;transform:translateY(-50%)}.sidebar-nav a svg{width:20px;height:20px;transition:transform var(--transition-fast);flex-shrink:0}.sidebar-nav a:hover svg{transform:scale(1.08)}.sidebar-nav a span{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.sidebar-footer{padding:var(--space-4);justify-content:space-between;align-items:center;gap:var(--space-3);border-top:1px solid #ffffff0f;margin-top:auto;display:flex}.sidebar-user{align-items:center;gap:var(--space-3);min-width:0;display:flex}.sidebar-avatar{border-radius:var(--radius-full);border:2px solid #ffffff1a;flex-shrink:0;width:32px;height:32px}.sidebar-username{color:#ffffffd9;white-space:nowrap;text-overflow:ellipsis;font-size:.85rem;font-weight:500;overflow:hidden}.sidebar-logout{color:#fff6;cursor:pointer;padding:var(--space-2);border-radius:var(--radius-sm);transition:all var(--transition-base);background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;display:flex}.sidebar-logout:hover{color:#fff;background:#ffffff1a}.main-content{margin-left:var(--sidebar-width);padding:var(--space-8);min-height:100vh;animation:fadeIn var(--transition-slow) ease;flex:1;overflow-y:auto}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);transition:box-shadow var(--transition-base), transform var(--transition-base);overflow:hidden}.card:hover{box-shadow:var(--shadow-md)}.card-header{padding:var(--space-5) var(--space-6);border-bottom:1px solid var(--color-border-light)}.card-header h3{color:var(--color-text);letter-spacing:-.01em;font-size:.95rem;font-weight:600}.card-body{padding:var(--space-6)}.card-glass{-webkit-backdrop-filter:blur(12px);background:#ffffffb3;border:1px solid #fff6}.table-wrapper{-webkit-overflow-scrolling:touch;overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.875rem}table thead th{background:var(--color-bg);border-bottom:1px solid var(--color-border);padding:var(--space-3) var(--space-4);text-align:left;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em;white-space:nowrap;font-size:.78rem;font-weight:600;position:sticky;top:0}table tbody td{padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-border-light);color:var(--color-text);transition:background var(--transition-fast)}table tbody tr:hover td{background:var(--color-bg-hover)}table tbody tr:last-child td{border-bottom:none}.table-empty{text-align:center;padding:var(--space-12) var(--space-6);color:var(--color-text-muted);font-size:.875rem}.btn{justify-content:center;align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);white-space:nowrap;border:none;outline:none;font-family:inherit;font-size:.875rem;font-weight:500;line-height:1.5;display:inline-flex}.btn:focus-visible{box-shadow:0 0 0 2px var(--color-bg), 0 0 0 4px var(--color-primary)}.btn:disabled{opacity:.5;cursor:not-allowed;pointer-events:none}.btn:active:not(:disabled){transform:scale(.97)}.btn-primary{color:#fff;background:linear-gradient(135deg,#3b82f6,#2563eb);box-shadow:0 1px 2px #3b82f64d}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg,#2563eb,#1d4ed8);transform:translateY(-1px);box-shadow:0 2px 8px #3b82f666}.btn-secondary{color:var(--color-text);border:1px solid var(--color-border);background:0 0}.btn-secondary:hover:not(:disabled){background:var(--color-bg-hover);border-color:var(--color-text-muted)}.btn-danger{color:#fff;background:linear-gradient(135deg,#ef4444,#dc2626);box-shadow:0 1px 2px #ef44444d}.btn-danger:hover:not(:disabled){background:linear-gradient(135deg,#dc2626,#b91c1c);transform:translateY(-1px);box-shadow:0 2px 8px #ef444466}.btn-ghost{color:var(--color-text-secondary);background:0 0;border:none}.btn-ghost:hover:not(:disabled){background:var(--color-bg-hover);color:var(--color-text)}.btn-sm{padding:var(--space-1) var(--space-3);border-radius:var(--radius-sm);font-size:.8rem}.btn-lg{padding:var(--space-3) var(--space-6);border-radius:var(--radius-lg);font-size:1rem}input[type=text],input[type=email],input[type=password],input[type=number],input[type=url],input[type=search],select,textarea{width:100%;padding:var(--space-2) var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);transition:border-color var(--transition-base), box-shadow var(--transition-base);background:#fff;outline:none;font-family:inherit;font-size:.875rem}input:focus,select:focus,textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}input::placeholder,textarea::placeholder{color:var(--color-text-muted)}textarea{resize:vertical;min-height:80px}label{color:var(--color-text-secondary);margin-bottom:var(--space-1);letter-spacing:.02em;font-size:.8rem;font-weight:600;display:block}.form-group{margin-bottom:var(--space-4)}.badge{align-items:center;gap:var(--space-1);border-radius:var(--radius-full);white-space:nowrap;letter-spacing:.01em;padding:3px 10px;font-size:.75rem;font-weight:600;display:inline-flex}.badge-success{background:var(--color-success-light);color:var(--color-success)}.badge-warning{background:var(--color-warning-light);color:var(--color-warning)}.badge-error{background:var(--color-error-light);color:var(--color-error)}.badge-info{background:var(--color-info-light);color:var(--color-info)}.badge-default{color:var(--color-text-secondary);background:#0000000d}.badge-info:before{content:"";background:currentColor;border-radius:50%;width:6px;height:6px;animation:1.5s ease-in-out infinite pulse}@keyframes pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}.spinner-wrapper{padding:var(--space-12);justify-content:center;align-items:center;display:flex}.loading-spinner,.spinner{border:3px solid var(--color-border);background:conic-gradient(from 0deg, transparent, var(--color-primary));border-top-color:#0000;border-radius:50%;width:36px;height:36px;animation:.8s linear infinite spin;-webkit-mask:radial-gradient(farthest-side,#0000 calc(100% - 3px),#000 calc(100% - 3px));mask:radial-gradient(farthest-side,#0000 calc(100% - 3px),#000 calc(100% - 3px))}@keyframes spin{to{transform:rotate(360deg)}}.loading-fullscreen{justify-content:center;align-items:center;width:100%;height:100vh;display:flex}.modal-overlay{-webkit-backdrop-filter:blur(4px);z-index:1000;padding:var(--space-5);animation:modalOverlayIn var(--transition-base) ease;background:#0f172a80;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}@keyframes modalOverlayIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--color-bg-card);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);width:100%;max-width:560px;max-height:85vh;animation:modalScaleIn var(--transition-slow) cubic-bezier(.16, 1, .3, 1);overflow-y:auto}@keyframes modalScaleIn{0%{opacity:0;transform:scale(.95)translateY(10px)}to{opacity:1;transform:scale(1)translateY(0)}}.modal-header{padding:var(--space-5) var(--space-6);border-bottom:1px solid var(--color-border-light);justify-content:space-between;align-items:center;display:flex}.modal-header h3{letter-spacing:-.01em;font-size:1.05rem;font-weight:600}.modal-close{cursor:pointer;color:var(--color-text-muted);padding:var(--space-2);border-radius:var(--radius-sm);transition:all var(--transition-base);background:0 0;border:none;justify-content:center;align-items:center;display:flex}.modal-close:hover{background:var(--color-bg-hover);color:var(--color-text)}.modal-body{padding:var(--space-6)}.audio-player{padding:var(--space-4);background:var(--color-bg);border:1px solid var(--color-border-light);border-radius:var(--radius-lg);transition:all var(--transition-base)}.audio-player:hover{border-color:var(--color-border);box-shadow:var(--shadow-sm)}.audio-player-title{color:var(--color-text-secondary);margin-bottom:var(--space-2);font-size:.8rem;font-weight:600}.audio-player audio{border-radius:var(--radius-sm);width:100%;height:36px}.page-header{margin-bottom:var(--space-6);justify-content:space-between;align-items:center;gap:var(--space-4);flex-wrap:wrap;display:flex}.page-header h2{color:var(--color-text);letter-spacing:-.02em;font-size:1.5rem;font-weight:700}.login-container{min-height:100vh;padding:var(--space-5);background:linear-gradient(135deg,#0f172a 0%,#1e1b4b 50%,#1e293b 100%);justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.login-container:before{content:"";pointer-events:none;background:radial-gradient(circle,#3b82f61f,#0000 70%);width:500px;height:500px;position:absolute;top:-100px;right:-100px}.login-container:after{content:"";pointer-events:none;background:radial-gradient(circle,#8b5cf61a,#0000 70%);width:400px;height:400px;position:absolute;bottom:-80px;left:-80px}.login-card{-webkit-backdrop-filter:blur(20px);border-radius:var(--radius-xl);padding:var(--space-12) var(--space-8);box-shadow:var(--shadow-xl);text-align:center;z-index:1;width:100%;max-width:420px;animation:modalScaleIn var(--transition-slow) ease;background:#fffffff2;position:relative}.login-brand{justify-content:center;align-items:center;gap:var(--space-3);margin-bottom:var(--space-2);display:flex}.login-brand-icon{border-radius:var(--radius-lg);color:#fff;background:linear-gradient(135deg,#3b82f6,#8b5cf6);justify-content:center;align-items:center;width:44px;height:44px;display:flex}.login-brand h1{color:var(--color-text);letter-spacing:-.03em;font-size:2rem;font-weight:800}.login-subtitle{color:var(--color-text-secondary);margin-bottom:var(--space-8);font-size:.9rem}.login-error{background:var(--color-error-light);color:var(--color-error);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);margin-bottom:var(--space-6);border:1px solid #ef444426;font-size:.85rem;font-weight:500}.login-google-btn{justify-content:center;display:flex}.login-footer{color:var(--color-text-muted);margin-top:var(--space-8);font-size:.78rem}.alert{padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);align-items:center;gap:var(--space-3);animation:slideInDown var(--transition-slow) ease;font-size:.85rem;font-weight:500;display:flex}.alert-success{background:var(--color-success-light);color:var(--color-success);border:1px solid #10b98126}.alert-error{background:var(--color-error-light);color:var(--color-error);border:1px solid #ef444426}.alert-warning{background:var(--color-warning-light);color:var(--color-warning);border:1px solid #f59e0b26}.alert-info{background:var(--color-info-light);color:var(--color-info);border:1px solid #3b82f626}@keyframes slideInDown{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.text-secondary{color:var(--color-text-secondary)}.text-muted{color:var(--color-text-muted)}.text-sm{font-size:.8rem}.text-xs{font-size:.75rem}.mt-1{margin-top:var(--space-1)}.mt-2{margin-top:var(--space-2)}.mt-3{margin-top:var(--space-3)}.mt-4{margin-top:var(--space-4)}.mt-6{margin-top:var(--space-6)}.mb-1{margin-bottom:var(--space-1)}.mb-2{margin-bottom:var(--space-2)}.mb-3{margin-bottom:var(--space-3)}.mb-4{margin-bottom:var(--space-4)}.mb-6{margin-bottom:var(--space-6)}.gap-1{gap:var(--space-1)}.gap-2{gap:var(--space-2)}.gap-3{gap:var(--space-3)}.gap-4{gap:var(--space-4)}.flex{display:flex}.flex-col{flex-direction:column}.flex-wrap{flex-wrap:wrap}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}@media (width<=768px){.sidebar{width:100%;height:var(--bottom-nav-height);z-index:200;border-top:1px solid #ffffff14;border-right:none;flex-direction:row;position:fixed;inset:auto 0 0}.sidebar:before,.sidebar-logo{display:none}.sidebar-nav{flex-direction:row;justify-content:space-around;align-items:center;gap:0;width:100%;padding:0;overflow:visible}.sidebar-nav a{padding:var(--space-2);border-radius:var(--radius-sm);flex-direction:column;flex:1;justify-content:center;align-items:center;gap:2px;min-width:0;font-size:.65rem}.sidebar-nav a.active:before{display:none}.sidebar-nav a svg{width:22px;height:22px}.sidebar-nav a span,.sidebar-footer{display:none}.main-content{padding:var(--space-4);padding-bottom:calc(var(--bottom-nav-height) + var(--space-4));min-height:100vh;margin-left:0}.page-header{flex-direction:column;align-items:flex-start}.page-header h2{font-size:1.25rem}.table-wrapper{margin:0 calc(-1 * var(--space-4));padding:0 var(--space-4)}.card-body,.card-header{padding:var(--space-4)}.modal{max-width:100%;margin:var(--space-4);max-height:90vh}.login-card{padding:var(--space-8) var(--space-6)}}@media (width<=480px){.main-content{padding:var(--space-3);padding-bottom:calc(var(--bottom-nav-height) + var(--space-3))}}