:root{--font-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-heading: "Outfit", sans-serif;--bg-primary: #0b0f19;--bg-secondary: #111827;--bg-card: rgba(17, 24, 39, .7);--bg-card-hover: rgba(31, 41, 55, .85);--bg-glass: rgba(17, 24, 39, .65);--border-color: rgba(255, 255, 255, .12);--border-active: rgba(99, 102, 241, .6);--text-primary: #f9fafb;--text-secondary: #d1d5db;--text-muted: #9ca3af;--accent-primary: #6366f1;--accent-secondary: #8b5cf6;--accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);--accent-glow: rgba(99, 102, 241, .35);--vacation-bg: rgba(245, 158, 11, .08);--vacation-border: rgba(245, 158, 11, .35);--vacation-text: #fbbf24;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .2);--shadow-md: 0 4px 20px rgba(0, 0, 0, .35);--shadow-lg: 0 10px 30px rgba(0, 0, 0, .55);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 20px;--transition-fast: .15s ease;--transition-normal: .3s cubic-bezier(.16, 1, .3, 1)}[data-theme=light]{--bg-primary: #f8fafc;--bg-secondary: #ffffff;--bg-card: rgba(255, 255, 255, .85);--bg-card-hover: rgba(241, 245, 249, .95);--bg-glass: rgba(255, 255, 255, .8);--border-color: rgba(0, 0, 0, .12);--border-active: rgba(99, 102, 241, .5);--text-primary: #0f172a;--text-secondary: #334155;--text-muted: #64748b;--vacation-bg: rgba(245, 158, 11, .12);--vacation-border: rgba(245, 158, 11, .45);--vacation-text: #d97706;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .05);--shadow-md: 0 4px 20px rgba(0, 0, 0, .08);--shadow-lg: 0 10px 30px rgba(0, 0, 0, .12)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-primary);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;min-height:100vh;background-image:radial-gradient(at 0% 0%,rgba(99,102,241,.14) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(236,72,153,.1) 0px,transparent 50%);background-attachment:fixed;overflow-x:hidden;transition:background-color var(--transition-normal),color var(--transition-normal)}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);letter-spacing:-.02em}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:#9ca3af59;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#9ca3af8c}.glass-panel{background:var(--bg-card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-md);transition:background-color var(--transition-normal),border-color var(--transition-normal),box-shadow var(--transition-normal)}.app-header{position:sticky;top:0;z-index:100;background:var(--bg-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);padding:1rem 1.5rem;transition:background-color var(--transition-normal),border-color var(--transition-normal)}.header-container{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}.logo-section{display:flex;align-items:center;gap:.75rem}.logo-badge{background:var(--accent-gradient);color:#fff;width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.1rem;box-shadow:0 4px 14px var(--accent-glow)}.logo-title{font-size:1.25rem;font-weight:700;color:var(--text-primary)}.logo-subtitle{font-size:.8rem;color:var(--text-muted);font-weight:500}.nav-controls{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.5rem 1rem;font-family:var(--font-primary);font-size:.875rem;font-weight:600;border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);cursor:pointer;transition:all var(--transition-fast)}.btn:hover{border-color:var(--border-active);background:var(--bg-card-hover);transform:translateY(-1px)}.btn-primary{background:var(--accent-gradient);color:#fff;border:none;box-shadow:0 4px 14px var(--accent-glow)}.btn-primary:hover{opacity:.95;box-shadow:0 6px 20px var(--accent-glow)}.search-input-wrapper{position:relative;display:flex;align-items:center}.search-input-wrapper svg.search-icon{position:absolute;left:.75rem;color:var(--text-muted);width:18px;height:18px;pointer-events:none}.search-input{padding:.5rem 2rem .5rem 2.25rem;border-radius:var(--radius-sm);border:1px solid var(--border-color);background:var(--bg-secondary);color:var(--text-primary);font-size:.875rem;outline:none;transition:all var(--transition-fast);width:220px}.search-input:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-glow);width:260px}.search-clear-btn{position:absolute;right:.5rem;background:transparent;border:none;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;padding:2px;border-radius:4px}.search-clear-btn:hover{color:var(--text-primary);background:var(--bg-card-hover)}.main-container{max-width:1400px;margin:1.5rem auto;padding:0 1.5rem;display:grid;grid-template-columns:320px 1fr;gap:1.5rem}.mobile-filter-trigger{display:none}@media (max-width: 1024px){.main-container{grid-template-columns:1fr}.mobile-filter-trigger{display:inline-flex}.sidebar-panel{position:fixed;top:0;left:0;bottom:0;width:320px;z-index:250;background:var(--bg-primary);padding:1.5rem;overflow-y:auto;box-shadow:var(--shadow-lg);transform:translate(-100%);transition:transform var(--transition-normal)}.sidebar-panel.open{transform:translate(0)}.drawer-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:240}}.sidebar-panel{display:flex;flex-direction:column;gap:1.25rem}.semester-tab-group{display:flex;background:var(--bg-secondary);padding:4px;border-radius:var(--radius-sm);border:1px solid var(--border-color)}.semester-tab{flex:1;padding:.5rem;text-align:center;font-size:.85rem;font-weight:600;border-radius:6px;cursor:pointer;color:var(--text-secondary);transition:all var(--transition-fast);border:none;background:transparent}.semester-tab.active{background:var(--accent-primary);color:#fff;box-shadow:var(--shadow-sm)}.course-selector-card{padding:1.25rem;max-height:calc(100vh - 240px);overflow-y:auto;display:flex;flex-direction:column;gap:1rem}.group-header{font-size:.8rem;font-weight:800;text-transform:uppercase;color:var(--accent-primary);padding:.4rem .2rem;border-bottom:1px solid var(--border-color);margin-top:.5rem;display:flex;align-items:center;justify-content:space-between}.section-header{display:flex;align-items:center;justify-content:space-between}.section-title{font-size:1rem;font-weight:700;display:flex;align-items:center;gap:.5rem}.preset-btn-group{display:flex;gap:.5rem;margin-bottom:.5rem}.preset-btn{font-size:.75rem;padding:.25rem .5rem;border-radius:4px}.course-item{display:flex;align-items:flex-start;gap:.75rem;padding:.6rem;border-radius:var(--radius-sm);border:1px solid transparent;transition:all var(--transition-fast);cursor:pointer;background:#ffffff05}.course-item:hover{background:var(--bg-card-hover);border-color:var(--border-color)}.course-checkbox{margin-top:3px;accent-color:var(--accent-primary);width:16px;height:16px;cursor:pointer}.course-info{flex:1}.course-code-tag{font-size:.7rem;font-weight:700;padding:2px 6px;border-radius:4px;color:#fff;display:inline-block;margin-bottom:2px}.course-item-title{font-size:.85rem;font-weight:600;line-height:1.3}.course-item-meta{font-size:.75rem;color:var(--text-muted);margin-top:2px}.calendar-view-panel{display:flex;flex-direction:column;gap:1rem}.view-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem;padding:1rem 1.25rem}.current-month-title{font-size:1.5rem;font-weight:800}.view-switcher{display:flex;gap:4px;background:var(--bg-secondary);padding:4px;border-radius:var(--radius-sm);border:1px solid var(--border-color)}.view-tab{padding:.4rem .8rem;font-size:.85rem;font-weight:600;border-radius:6px;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast)}.view-tab.active{background:var(--bg-card-hover);color:var(--text-primary);box-shadow:var(--shadow-sm)}.month-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}.month-weekday-header{text-align:center;font-size:.8rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;padding:.5rem 0}.month-day-cell{min-height:135px;padding:.8rem;display:flex;flex-direction:column;gap:6px;border-radius:var(--radius-sm);background:var(--bg-card);border:1px solid var(--border-color);transition:all var(--transition-fast);cursor:pointer;position:relative}.month-day-cell:hover{border-color:var(--border-active);background:var(--bg-card-hover)}.month-day-cell.other-month{opacity:.35}.month-day-cell.vacation-day{background:var(--vacation-bg)!important;border:1px dashed var(--vacation-border)!important}.vacation-badge{font-size:.68rem;font-weight:800;color:var(--vacation-text);background:#f59e0b26;border:1px solid var(--vacation-border);padding:2px 6px;border-radius:4px;display:inline-flex;align-items:center;gap:3px;width:fit-content}.no-class-label{font-size:.72rem;color:var(--text-muted);font-style:italic;margin-top:4px}.day-num{font-size:.85rem;font-weight:700;margin-bottom:2px;display:flex;align-items:center;justify-content:space-between}.event-chip{font-size:.75rem;padding:5px 8px;border-radius:6px;color:#fff;font-weight:600;line-height:1.3;white-space:normal;word-break:break-word;box-shadow:0 2px 6px #00000040;transition:transform var(--transition-fast),box-shadow var(--transition-fast);cursor:pointer;display:flex;flex-direction:column;gap:2px}.event-chip:hover{transform:translateY(-1px) scale(1.015);box-shadow:0 4px 12px #00000059}.event-chip-header{display:flex;align-items:center;justify-content:space-between;gap:4px;font-size:.68rem;opacity:.95;font-weight:700}.event-chip-title{font-weight:700;font-size:.76rem;line-height:1.25}.more-chip{font-size:.72rem;font-weight:700;color:var(--accent-primary);background:#6366f124;border:1px solid rgba(99,102,241,.35);padding:3px 8px;border-radius:4px;text-align:center;margin-top:2px;transition:all var(--transition-fast)}.more-chip:hover{background:var(--accent-primary);color:#fff}.empty-state-panel{padding:3.5rem 1.5rem;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem}.empty-state-icon{width:64px;height:64px;border-radius:50%;background:#6366f11a;color:var(--accent-primary);display:flex;align-items:center;justify-content:center}.week-grid-container{overflow-x:auto}.week-vacation-banner{background:var(--vacation-bg);border:1px solid var(--vacation-border);color:var(--vacation-text);padding:.75rem 1.25rem;border-radius:var(--radius-sm);margin-bottom:1rem;font-size:.9rem;font-weight:700;display:flex;align-items:center;gap:.5rem}.week-grid{display:grid;grid-template-columns:70px repeat(5,1fr);gap:1px;background:var(--border-color);border-radius:var(--radius-md);overflow:hidden;min-width:800px}.week-header-cell{background:var(--bg-secondary);padding:.75rem .5rem;text-align:center}.week-header-day{font-size:.8rem;color:var(--text-muted);font-weight:600}.week-header-date{font-size:1.1rem;font-weight:800}.time-slot-label{background:var(--bg-secondary);font-size:.75rem;color:var(--text-muted);text-align:center;padding:.5rem 0;font-weight:500}.week-day-slot{background:var(--bg-card);min-height:48px;padding:4px;position:relative}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000b3;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:300;display:flex;align-items:center;justify-content:center;padding:1rem}.modal-content{width:100%;max-width:520px;padding:1.75rem;animation:modalIn .25s cubic-bezier(.16,1,.3,1)}@keyframes modalIn{0%{opacity:0;transform:scale(.95) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}.modal-header{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;margin-bottom:1.25rem}.modal-title{font-size:1.25rem;font-weight:800}.close-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:4px;border-radius:6px;transition:color var(--transition-fast)}.close-btn:hover{color:var(--text-primary);background:var(--bg-secondary)}.detail-row{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem;font-size:.9rem;color:var(--text-secondary)}.detail-row svg{color:var(--accent-primary);width:20px;height:20px;flex-shrink:0}.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:20px;font-size:.75rem;font-weight:700}.badge-s1{background:#6366f126;color:#818cf8;border:1px solid rgba(99,102,241,.3)}.badge-s2{background:#ec489926;color:#f472b6;border:1px solid rgba(236,72,153,.3)}.stats-bar{grid-column:1 / -1;padding:1rem 1.5rem;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-size:.85rem;color:var(--text-secondary)}