:root{--bg-color: #f0f2f5;--card-bg: rgba(255, 255, 255, .85);--text-primary: #1f2937;--text-secondary: #6b7280;--text-tertiary: #9ca3af;--accent-color: #6366f1;--accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);--border-color: #e5e7eb;--hover-bg: #f3f4f6;--danger-color: #ef4444;--success-color: #10b981;--warning-color: #f59e0b;--info-color: #3b82f6;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05);--glass-border: 1px solid rgba(255, 255, 255, .5);--backdrop-blur: blur(12px);--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-full: 9999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .3s cubic-bezier(.4, 0, .2, 1);--font-family: "Inter", system-ui, -apple-system, sans-serif}[data-theme=dark]{--bg-color: #0f172a;--card-bg: rgba(30, 41, 59, .7);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-tertiary: #64748b;--border-color: #334155;--hover-bg: #334155;--glass-border: 1px solid rgba(255, 255, 255, .1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-primary);min-height:100vh;display:flex;justify-content:center;transition:background-color var(--transition-normal),color var(--transition-normal);overflow-x:hidden}.app-background{position:fixed;top:0;left:0;width:100%;height:100%;z-index:-1;overflow:hidden}.shape{position:absolute;border-radius:50%;filter:blur(80px);opacity:.6;animation:float 20s infinite ease-in-out}.shape-1{top:-10%;left:-10%;width:50vw;height:50vw;background:radial-gradient(circle,#6366f166,#0000 70%);animation-delay:0s}.shape-2{bottom:-10%;right:-10%;width:40vw;height:40vw;background:radial-gradient(circle,#8b5cf666,#0000 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fadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.stats-nav{display:flex;padding:.75rem;gap:.5rem;border-bottom:1px solid var(--border-color)}.stats-nav-btn{flex:1;background:transparent;border:none;color:var(--text-secondary);font-weight:600;font-size:.875rem;padding:.75rem 1rem;cursor:pointer;border-radius:var(--radius-md);transition:all var(--transition-fast);font-family:var(--font-family)}.stats-nav-btn:hover{color:var(--text-primary);background-color:var(--hover-bg)}.stats-nav-btn.active{color:var(--accent-color);background-color:#6366f11a}.stats-view{display:flex;flex-direction:column;flex:1;min-height:0;overflow:hidden}.history-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;border-bottom:1px solid var(--border-color)}.history-header h3{font-size:1rem;font-weight:600;color:var(--text-primary);margin:0}.reset-btn{background:transparent;border:1px solid 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var(--border-color)}.stat-card{display:flex;flex-direction:column;gap:.5rem}.stat-label{font-size:.75rem;color:var(--text-tertiary);font-weight:500;text-transform:uppercase;letter-spacing:.05em}.stat-value{font-size:1.5rem;font-weight:700;color:var(--text-primary)}.stats-chart-container{padding:1.5rem 1.5rem .5rem}.stats-tips{padding:1rem 1.5rem;margin-top:auto;border-top:1px solid var(--border-color);background:#6366f108}.stats-tips h4{font-size:.875rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem}.stats-tips ul{list-style:none;padding:0;margin:0}.stats-tips li{font-size:.8rem;color:var(--text-secondary);padding:.25rem 0;line-height:1.4}.stats-chart-container h3{font-size:.875rem;font-weight:600;color:var(--text-secondary);margin-bottom:1rem}.completion-chart{height:200px;display:flex;align-items:flex-end;justify-content:space-between;padding-bottom:2rem;padding-top:1rem;border-bottom:1px solid var(--border-color)}.chart-bar-wrapper{display:flex;flex-direction:column;align-items:center;flex:1;height:100%;justify-content:flex-end;position:relative}.chart-bar{width:100%;background:var(--accent-gradient);border-radius:4px 4px 0 0;min-height:2px;opacity:.8;transition:opacity var(--transition-fast),height .5s ease-out}.chart-bar-wrapper:hover .chart-bar{opacity:1}.chart-date{font-size:.65rem;color:var(--text-tertiary);margin-top:.5rem;white-space:nowrap;position:absolute;bottom:-2rem;left:50%;transform:translate(-50%) rotate(-45deg);transform-origin:top center}.chart-tooltip{position:absolute;top:-3rem;left:50%;transform:translate(-50%);background:var(--text-primary);color:var(--bg-color);font-size:.75rem;padding:.4rem .6rem;border-radius:6px;opacity:0;transition:opacity .2s;pointer-events:none;white-space:nowrap;z-index:10;text-align:center;line-height:1.4;box-shadow:0 2px 8px #00000026}.chart-tooltip strong{font-weight:700;font-size:.85rem}.chart-bar-wrapper:hover .chart-tooltip{opacity:1}.chart-bar.bar-excellent{background:linear-gradient(135deg,#10b981,#34d399)}.chart-bar.bar-good{background:linear-gradient(135deg,#f59e0b,#fbbf24)}.chart-bar.bar-partial{background:linear-gradient(135deg,#f97316,#fb923c)}#recurrence-badge{position:absolute;top:-4px;right:-4px;width:8px;height:8px;background-color:var(--accent-color);border-radius:50%;border:2px solid var(--card-bg)}