*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f0f0f;--bg-card: #1a1a1a;--bg-elevated: #222222;--border: #2a2a2a;--text-primary: #f0ede8;--text-secondary: #8a8580;--text-muted: #4a4845;--accent: #e8a030;--accent-dim: #3d2a0a;--danger: #e85030;--danger-dim: #3d1008;--success: #50c878;--success-dim: #0a3d1a;--font-display: "SF Pro Display", -apple-system, BlinkMacSystemFont, sans-serif;--font-body: "SF Pro Text", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "SF Mono", "Fira Code", monospace;--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--radius-xl: 28px;--tab-height: 82px;--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-top: env(safe-area-inset-top, 0px)}html{height:100%;-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text-primary);font-family:var(--font-body);font-size:16px;line-height:1.5;height:100%;overflow:hidden;-webkit-font-smoothing:antialiased}#app{height:100%;display:flex;flex-direction:column}.app-shell{display:flex;flex-direction:column;height:100%;padding-top:var(--safe-top)}.page-content{flex:1;overflow-y:auto;overflow-x:hidden;padding-bottom:calc(var(--tab-height) + var(--safe-bottom) + 16px);-webkit-overflow-scrolling:touch}.tab-bar{position:fixed;bottom:0;left:0;right:0;height:calc(var(--tab-height) + var(--safe-bottom));padding-bottom:var(--safe-bottom);background:#0f0f0feb;backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border-top:1px solid var(--border);display:flex;align-items:flex-start;justify-content:space-around;padding-top:12px;z-index:100}.tab-item{display:flex;flex-direction:column;align-items:center;gap:4px;flex:1;background:none;border:none;cursor:pointer;padding:4px 8px;border-radius:var(--radius-sm);transition:opacity .15s;-webkit-tap-highlight-color:transparent}.tab-item:active{opacity:.6}.tab-icon{font-size:22px;line-height:1;transition:transform .2s cubic-bezier(.34,1.56,.64,1)}.tab-item.active .tab-icon{transform:scale(1.1)}.tab-label{font-size:10px;font-weight:500;letter-spacing:.3px;color:var(--text-muted);transition:color .15s}.tab-item.active .tab-label{color:var(--accent)}.page-header{padding:20px 20px 12px;position:sticky;top:0;background:#0f0f0feb;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);z-index:50;border-bottom:1px solid var(--border)}.page-title{font-family:var(--font-display);font-size:28px;font-weight:700;letter-spacing:-.5px;color:var(--text-primary)}.page-subtitle{font-size:14px;color:var(--text-secondary);margin-top:2px}.card{background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border);overflow:hidden}.card-section{padding:20px}.task-card{display:flex;align-items:center;gap:16px;padding:16px 20px;background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border);margin:0 16px 10px;transition:border-color .15s,background .15s;-webkit-tap-highlight-color:transparent}.task-card.completed{background:var(--bg);border-color:var(--border);opacity:.5}.task-card.overdue{border-color:var(--danger-dim);background:var(--danger-dim)}.task-card.overdue .task-title{color:var(--danger)}.task-check{width:32px;height:32px;border-radius:50%;border:2px solid var(--border);background:transparent;display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:all .2s cubic-bezier(.34,1.56,.64,1);-webkit-tap-highlight-color:transparent}.task-check:active{transform:scale(.88)}.task-check.checked{background:var(--success);border-color:var(--success)}.task-check-icon{color:#0f0f0f;font-size:16px;font-weight:700;opacity:0;transform:scale(0);transition:all .2s cubic-bezier(.34,1.56,.64,1)}.task-check.checked .task-check-icon{opacity:1;transform:scale(1)}.task-info{flex:1;min-width:0}.task-title{font-size:15px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.task-meta{font-size:12px;color:var(--text-secondary);margin-top:2px}.task-tag{display:inline-block;font-size:10px;font-weight:600;letter-spacing:.5px;padding:2px 7px;border-radius:20px;margin-left:6px;vertical-align:middle}.tag-body{background:var(--accent-dim);color:var(--accent)}.tag-practice{background:#1a2a3d;color:#5090e8}.score-big{font-family:var(--font-display);font-size:72px;font-weight:800;letter-spacing:-3px;line-height:1;color:var(--accent)}.score-label{font-size:13px;color:var(--text-secondary);letter-spacing:.5px;text-transform:uppercase;margin-top:4px}.section-label{font-size:11px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--text-muted);padding:20px 20px 8px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:var(--radius-xl);font-family:var(--font-body);font-size:15px;font-weight:600;border:none;cursor:pointer;transition:all .15s;-webkit-tap-highlight-color:transparent}.btn:active{transform:scale(.96)}.btn-primary{background:var(--accent);color:#0f0f0f}.btn-secondary{background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border)}.btn-danger{background:var(--danger);color:#fff}.btn-full{width:100%}.fab{position:fixed;bottom:calc(var(--tab-height) + var(--safe-bottom) + 20px);left:50%;transform:translate(-50%);background:var(--accent);color:#0f0f0f;border:none;border-radius:var(--radius-xl);padding:14px 28px;font-size:15px;font-weight:700;display:flex;align-items:center;gap:8px;cursor:pointer;box-shadow:0 4px 24px #e8a03059;z-index:90;-webkit-tap-highlight-color:transparent;transition:all .15s}.fab:active{transform:translate(-50%) scale(.95);box-shadow:0 2px 12px #e8a03040}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 32px;text-align:center;gap:12px}.empty-icon{font-size:48px}.empty-title{font-size:18px;font-weight:600;color:var(--text-secondary)}.empty-body{font-size:14px;color:var(--text-muted);line-height:1.6}.spinner{width:24px;height:24px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.toast-container{position:fixed;top:calc(var(--safe-top) + 16px);left:50%;transform:translate(-50%);z-index:200;display:flex;flex-direction:column;gap:8px;pointer-events:none}.toast{background:var(--bg-elevated);border:1px solid var(--border);color:var(--text-primary);padding:12px 20px;border-radius:var(--radius-xl);font-size:14px;font-weight:500;white-space:nowrap;animation:toast-in .3s cubic-bezier(.34,1.56,.64,1) forwards}.toast.success{border-color:var(--success);color:var(--success)}.toast.error{border-color:var(--danger);color:var(--danger)}@keyframes toast-in{0%{opacity:0;transform:translateY(-8px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.overdue-badge{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:700;color:var(--danger);letter-spacing:.3px;padding:3px 8px;background:var(--danger-dim);border-radius:20px}.divider{height:1px;background:var(--border);margin:0 20px}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:2px}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}