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0}.settings-item:last-child{border-radius:0 0 var(--radius-lg) var(--radius-lg)}.settings-item:only-child{border-radius:var(--radius-lg)}.settings-item+.settings-item{border-top:1px solid #ffffff0a}.settings-left{flex:1;align-items:center;gap:12px;display:flex}.toggle-switch{flex-shrink:0;width:44px;height:24px;display:inline-block;position:relative}.toggle-switch input{display:none}.toggle-slider{background:var(--color-surface-highest);cursor:pointer;border-radius:99px;transition:background .3s;position:absolute;top:0;right:0;bottom:0;left:0}.toggle-slider:before{content:"";background:var(--color-on-surface);border-radius:50%;width:18px;height:18px;transition:transform .3s;position:absolute;top:3px;left:3px}.toggle-switch input:checked+.toggle-slider{background:var(--color-primary-container)}.toggle-switch 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var(--color-error)}.toast-info{border-left:3px solid var(--color-primary)}.exam-header-bar{border-bottom:1px solid #ffffff0a;justify-content:space-between;align-items:center;margin-bottom:16px;padding:16px 0;display:flex}.exam-header-bar .timer{font-family:var(--font-family-heading);color:var(--color-primary);font-size:24px;font-weight:700}.time-warning{color:var(--color-error)!important}.two-col{grid-template-columns:1fr 1fr;align-items:start;gap:32px;display:grid}.code-input{font-family:var(--font-family-heading),monospace;text-align:center;letter-spacing:4px;text-transform:uppercase;font-size:20px;font-weight:700}.empty-state{text-align:center;color:var(--color-on-surface-dim);flex-direction:column;justify-content:center;align-items:center;padding:48px 24px;display:flex}.empty-state 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spin}.loading-spinner.sm{border-width:2px;width:20px;height:20px}.loading-spinner.lg{border-width:4px;width:48px;height:48px}.loading-center{justify-content:center;align-items:center;width:100%;padding:48px 24px;display:flex}@keyframes spin{to{transform:rotate(360deg)}}.skeleton{background:var(--color-surface-high);border-radius:var(--radius-sm);animation:1.5s ease-in-out infinite shimmer;position:relative;overflow:hidden}.skeleton:after{content:"";background:linear-gradient(90deg,#0000,#ffffff0a,#0000);animation:1.5s ease-in-out infinite shimmerSlide;position:absolute;top:0;right:0;bottom:0;left:0}@keyframes shimmer{0%,to{opacity:.6}50%{opacity:1}}@keyframes shimmerSlide{0%{transform:translate(-100%)}to{transform:translate(100%)}}.skeleton-text{height:14px;margin-bottom:8px}.skeleton-text.w-75{width:75%}.skeleton-text.w-50{width:50%}.skeleton-text.w-30{width:30%}.skeleton-circle{border-radius:50%}.skeleton-card{border-radius:var(--radius-lg);height:120px;margin-bottom:16px}@keyframes fadeIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.4s ease-out fadeIn}@keyframes scaleIn{0%{opacity:0;transform:scale(.8)}to{opacity:1;transform:scale(1)}}.scale-in{animation:.5s ease-out scaleIn}@keyframes slideUp{0%{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}.slide-up{animation:.5s ease-out slideUp}.stagger>*{opacity:0;animation:.4s ease-out forwards fadeIn}.stagger>:first-child{animation-delay:50ms}.stagger>:nth-child(2){animation-delay:.1s}.stagger>:nth-child(3){animation-delay:.15s}.stagger>:nth-child(4){animation-delay:.2s}.stagger>:nth-child(5){animation-delay:.25s}.stagger>:nth-child(6){animation-delay:.3s}.stagger>:nth-child(7){animation-delay:.35s}.stagger>:nth-child(8){animation-delay:.4s}.stagger>:nth-child(n+9){animation-delay:.45s}.offline-bar{text-align:center;background:var(--color-error);color:#fff;z-index:300;padding:10px 20px;font-size:13px;font-weight:600;transition:transform .3s;position:fixed;bottom:0;left:0;right:0;transform:translateY(100%)}.offline-bar.show{transform:translateY(0)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--color-surface-highest);border-radius:99px}@media(max-width:1024px){.sidebar-right{transform:translate(100%)}.sidebar-left{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-toggle{display:flex}.main-content-right,.main-content-left{margin-left:0;margin-right:0}.page-header{padding-right:72px}.stats-grid,.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}.two-col{grid-template-columns:1fr}}@media(max-width:640px){.stats-grid,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.page-header h1{font-size:20px}.page-body{padding:16px}.categories-grid{grid-template-columns:1fr}}.landing-nav{z-index:100;-webkit-backdrop-filter:blur(16px);background:#0b0d1ed9;border-bottom:1px solid #ffffff0a;position:fixed;top:0;left:0;right:0}.landing-nav-inner{justify-content:space-between;align-items:center;max-width:1120px;height:64px;margin:0 auto;padding:0 24px;display:flex}.landing-brand{color:var(--color-on-surface);align-items:center;gap:10px;text-decoration:none;display:flex}.landing-brand:hover{text-decoration:none}.landing-nav-links{align-items:center;gap:24px;display:flex}.landing-nav-links a{color:var(--color-on-surface-dim);font-size:14px;font-weight:500;text-decoration:none;transition:color .15s}.landing-nav-links a:hover{color:var(--color-primary);text-decoration:none}.landing-hero{text-align:center;justify-content:center;align-items:center;min-height:100vh;padding:100px 24px 60px;display:flex}.landing-hero-inner{max-width:680px}.landing-hero-title{font-family:var(--font-family-heading);margin-bottom:20px;font-size:clamp(32px,5vw,52px);font-weight:800;line-height:1.15}.landing-hero-desc{color:var(--color-on-surface-dim);max-width:520px;margin:0 auto 36px;font-size:17px;line-height:1.7}.landing-hero-cta{flex-wrap:wrap;justify-content:center;gap:16px;display:flex}.landing-section{padding:80px 24px}.landing-section-alt{background:var(--color-surface-low)}.landing-container{max-width:1120px;margin:0 auto}.landing-section-title{font-family:var(--font-family-heading);text-align:center;margin-bottom:8px;font-size:32px;font-weight:800}.landing-section-sub{color:var(--color-on-surface-dim);text-align:center;margin-bottom:48px;font-size:16px}.landing-features-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.landing-feature-card{background:var(--color-surface-container);border-radius:var(--radius-lg);border:1px solid #ffffff0a;padding:28px 24px;transition:transform .2s,box-shadow .2s}.landing-feature-card:hover{transform:translateY(-4px);box-shadow:0 8px 32px #0000004d}.landing-feature-icon{color:#fff;border-radius:12px;justify-content:center;align-items:center;width:48px;height:48px;margin-bottom:16px;display:flex}.landing-feature-icon .material-symbols-outlined{font-size:24px}.landing-feature-card h3{font-family:var(--font-family-heading);margin-bottom:8px;font-size:17px;font-weight:700}.landing-feature-card p{color:var(--color-on-surface-dim);font-size:14px;line-height:1.6}.landing-steps{flex-wrap:wrap;justify-content:center;align-items:center;gap:24px;display:flex}.landing-step{background:var(--color-surface-container);border-radius:var(--radius-lg);text-align:center;border:1px solid #ffffff0a;flex:1;min-width:220px;max-width:300px;padding:32px 28px}.landing-step-num{background:var(--color-primary-container);color:#fff;width:48px;height:48px;font-family:var(--font-family-heading);border-radius:50%;justify-content:center;align-items:center;margin:0 auto 16px;font-size:20px;font-weight:800;display:flex}.landing-step h3{font-family:var(--font-family-heading);margin-bottom:8px;font-size:17px;font-weight:700}.landing-step p{color:var(--color-on-surface-dim);font-size:14px;line-height:1.6}.landing-step-arrow{color:var(--color-primary-dim);font-size:28px}.landing-step-arrow .material-symbols-outlined{font-size:32px}.landing-stats-grid{grid-template-columns:repeat(4,1fr);gap:24px;display:grid}.landing-stat{background:var(--color-surface-container);border-radius:var(--radius-lg);text-align:center;border:1px solid #ffffff0a;padding:32px 20px}.landing-stat-num{font-family:var(--font-family-heading);color:var(--color-primary);margin-bottom:4px;font-size:36px;font-weight:800}.landing-stat-label{color:var(--color-on-surface-dim);font-size:14px}.landing-cta{background:linear-gradient(135deg,#3d5afe14,#9ba8ff0f);padding:80px 24px}.landing-footer{background:var(--color-surface);border-top:1px solid #ffffff0a;padding:48px 24px 24px}.landing-footer-grid{grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:32px;display:grid}.landing-footer-bottom{color:var(--color-on-surface-dim);border-top:1px solid #ffffff0a;padding-top:20px;font-size:12px}@media(max-width:1024px){.landing-features-grid,.landing-stats-grid{grid-template-columns:repeat(2,1fr)}.landing-footer-grid{grid-template-columns:1fr;gap:24px}}@media(max-width:640px){.landing-features-grid{grid-template-columns:1fr}.landing-stats-grid{grid-template-columns:repeat(2,1fr)}.landing-steps{flex-direction:column}.landing-step-arrow{transform:rotate(90deg)}.landing-nav-links a:not(.btn){display:none}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}