@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Noto+Sans+SC:wght@400;500;600;700&display=swap";:root{--bg-main:#f8fafc;--bg-surface:#fff;--bg-subtle:#f1f5f9;--text-primary:#0f172a;--text-secondary:#475569;--text-tertiary:#94a3b8;--border-light:#e2e8f0;--border-medium:#cbd5e1;--color-primary:#3b82f6;--color-primary-hover:#2563eb;--color-success:#10b981;--color-success-hover:#059669;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000000d, 0 2px 4px -1px #00000008;--shadow-lg:0 10px 15px -3px #0000000d, 0 4px 6px -2px #00000006;--shadow-float:0 20px 25px -5px #0000001a, 0 10px 10px -5px #0000000a;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-main);color:var(--text-primary);-webkit-font-smoothing:antialiased;font-family:Inter,Noto Sans SC,system-ui,-apple-system,sans-serif;font-size:13px;line-height:1.5}#root{width:100%;min-height:100svh}.app{max-width:1520px;margin:0 auto;padding:32px 24px}.header{background:var(--bg-surface);border:1px solid var(--border-light);border-radius:var(--radius-lg) var(--radius-lg) 0 0;border-bottom:none;justify-content:space-between;align-items:center;gap:16px;padding:16px 24px;display:flex;box-shadow:0 -2px 10px #00000003}.header-left h1{color:var(--text-primary);letter-spacing:-.01em;margin:0;font-size:18px;font-weight:700}.header-subtitle{color:var(--text-secondary);margin-top:4px;font-size:12px;font-weight:500}.header-right{align-items:center;gap:12px;display:flex}.stat-badge{border-radius:var(--radius-md);background:var(--bg-subtle);color:var(--text-secondary);border:1px solid var(--border-light);padding:5px 12px;font-size:12px;font-weight:600}.btn-add{border-radius:var(--radius-md);cursor:pointer;background:var(--text-primary);color:#fff;box-shadow:var(--shadow-sm);border:none;padding:7px 16px;font-size:13px;font-weight:600;transition:all .2s cubic-bezier(.4,0,.2,1)}.btn-add:hover{box-shadow:var(--shadow-md);background:#1e293b;transform:translateY(-1px)}.btn-add:active{transform:translateY(0)}.btn-export{border-radius:var(--radius-md);cursor:pointer;background:var(--bg-surface);color:var(--text-primary);border:none;border:1px solid var(--border-medium);box-shadow:var(--shadow-sm);padding:7px 16px;font-size:13px;font-weight:600;transition:all .2s}.btn-export:hover{background:var(--bg-subtle);border-color:var(--text-tertiary)}.btn-export:active{transform:translateY(1px)}.btn-import-general{border-radius:var(--radius-md);cursor:pointer;background:var(--bg-surface);color:#2563eb;box-shadow:var(--shadow-sm);border:1px solid #bfdbfe;padding:7px 16px;font-size:13px;font-weight:600;transition:all .2s}.btn-import-general:hover{background:#eff6ff;border-color:#93c5fd}.btn-import-general:active{transform:translateY(1px)}.map-grid{background:var(--bg-surface);border:1px solid var(--border-light);border-bottom:none;border-radius:0;overflow:hidden}.col-sems{background:var(--bg-main);border-bottom:1px solid var(--border-light);grid-template-columns:130px repeat(8,1fr);display:grid}.sem-col{border-right:1px solid var(--border-light);flex-direction:column;display:flex}.sem-col:last-child{border-right:none}.sem-col:first-child{background:var(--bg-subtle)}.sem-label{text-align:center;color:var(--text-primary);padding:5px 8px;font-size:12px;font-weight:700}.sem-hours{text-align:center;color:var(--text-secondary);border-top:1px dashed var(--border-light);padding:3px 8px 5px;font-size:10px;font-weight:500}.map-section{border-bottom:1px solid var(--border-light)}.map-section:last-of-type{border-bottom:none}.section-label{text-align:center;letter-spacing:.05em;word-break:keep-all;font-size:11px;font-weight:700;line-height:1.6}.semester-row{grid-template-columns:130px repeat(8,1fr);min-height:60px;display:grid}.semester-cell{border-right:1px dashed var(--border-light);flex-direction:column;gap:4px;min-height:60px;padding:5px;transition:background .2s,border-color .2s;display:flex}.semester-cell:last-child{border-right:none}.semester-cell--over{background:#f0fdf4;border-color:#4ade80}.semester-cell.spacer-cell{background:var(--bg-subtle);border-right:1px solid var(--border-light);justify-content:center;align-items:center}.course-card{border-radius:var(--radius-sm);border:1px solid #ffffff26;flex-direction:column;gap:1px;padding:4px 7px;font-size:11px;font-weight:600;line-height:1.3;transition:all .2s cubic-bezier(.4,0,.2,1);display:flex;position:relative;box-shadow:0 1px 2px #00000014}.course-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.course-card:active{cursor:grabbing;transform:scale(.98)}.course-name{letter-spacing:.01em;font-size:11px;font-weight:700}.course-meta{opacity:.9;gap:6px;font-size:10px;font-weight:500;display:flex}.course-badge{color:#fff;border:2px solid var(--bg-surface);border-radius:12px;padding:3px 8px;font-size:10px;font-weight:800;position:absolute;top:-8px;right:-8px;box-shadow:0 2px 4px #00000026}.course-delete{width:22px;height:22px;color:var(--text-primary);cursor:pointer;opacity:0;box-shadow:var(--shadow-sm);background:#ffffffe6;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:14px;transition:all .2s;display:flex;position:absolute;top:6px;right:6px}.course-card:hover .course-delete{opacity:1}.course-delete:hover{color:#ef4444;background:#fee2e2}.legend-bar{background:var(--bg-subtle);border:1px solid var(--border-light);border-radius:0 0 var(--radius-lg) var(--radius-lg);flex-wrap:wrap;align-items:center;gap:14px 24px;padding:16px 28px;display:flex;box-shadow:0 4px 10px #00000008}.legend-title{color:var(--text-secondary);font-size:13px;font-weight:700}.legend-item{color:var(--text-primary);align-items:center;gap:8px;font-size:13px;font-weight:600;display:flex}.legend-dot{border-radius:50%;width:14px;height:14px;box-shadow:inset 0 0 0 1px #00000014}.legend-separator{background:var(--border-medium);opacity:.5;width:1px;height:18px}.legend-badge{color:#fff;border-radius:4px;padding:3px 8px;font-size:10px;font-weight:700}.legend-hint{color:var(--text-tertiary);margin-left:auto;font-size:12px;font-weight:500}.modal-overlay{z-index:1000;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f172a80;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.modal-content{background:var(--bg-surface);border-radius:var(--radius-xl);width:500px;max-width:100%;box-shadow:var(--shadow-float);padding:36px;animation:.25s cubic-bezier(.16,1,.3,1) modalIn}@keyframes modalIn{0%{opacity:0;transform:scale(.96)translateY(12px)}to{opacity:1;transform:scale(1)translateY(0)}}.modal-header{justify-content:space-between;align-items:center;margin-bottom:28px;display:flex}.modal-header h2{color:var(--text-primary);letter-spacing:-.02em;font-size:22px;font-weight:800}.modal-close{background:var(--bg-subtle);cursor:pointer;width:36px;height:36px;color:var(--text-secondary);border:none;border-radius:50%;justify-content:center;align-items:center;font-size:18px;transition:all .2s;display:flex}.modal-close:hover{color:var(--text-primary);background:#e2e8f0;transform:rotate(90deg)}.modal-form{flex-direction:column;gap:20px;display:flex}.modal-form label{color:var(--text-secondary);flex-direction:column;gap:8px;font-size:14px;font-weight:600;display:flex}.required{color:#ef4444}.modal-form input,.modal-form select{border:1px solid var(--border-medium);border-radius:var(--radius-md);background:var(--bg-surface);color:var(--text-primary);padding:12px 16px;font-family:inherit;font-size:15px;font-weight:500;transition:all .2s}.modal-form input:focus,.modal-form select:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 4px #3b82f626}.modal-actions{border-top:1px solid var(--border-light);justify-content:flex-end;gap:12px;margin-top:16px;padding-top:24px;display:flex}.btn-cancel,.btn-submit{border-radius:var(--radius-md);cursor:pointer;border:none;padding:12px 28px;font-size:14px;font-weight:700;transition:all .2s}.btn-cancel{background:var(--bg-subtle);color:var(--text-secondary)}.btn-cancel:hover{color:var(--text-primary);background:#e2e8f0}.btn-submit{background:var(--text-primary);color:#fff;box-shadow:var(--shadow-sm)}.btn-submit:hover:not(:disabled){box-shadow:var(--shadow-md);background:#1e293b;transform:translateY(-1px)}.btn-submit:disabled{background:var(--border-medium);color:#fff;cursor:not-allowed;box-shadow:none}#dndkit-drag-overlay .course-card{box-shadow:var(--shadow-float);opacity:.9;transform:scale(1.08)rotate(3deg)}.header-center{flex:1;justify-content:center;align-items:center;gap:10px;display:flex}.major-select{background:var(--bg-subtle);color:var(--text-primary);border:1px solid var(--border-light);border-radius:var(--radius-md);cursor:pointer;appearance:none;box-shadow:var(--shadow-sm);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23475569' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-position:right 14px center;background-repeat:no-repeat;padding:8px 36px 8px 14px;font-size:13px;font-weight:700;transition:all .2s}.major-select:hover{border-color:var(--border-medium);background:#e2e8f0}.major-select:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 4px #3b82f626}.view-tabs{background:var(--bg-subtle);border-radius:var(--radius-md);border:1px solid var(--border-light);padding:4px;display:flex}.tab-btn{border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;background:0 0;border:none;padding:6px 16px;font-size:12px;font-weight:600;transition:all .2s}.tab-btn:hover{color:var(--text-primary)}.tab-btn--active{box-shadow:var(--shadow-sm);background:var(--bg-surface)!important;color:var(--color-primary)!important}.loading-state{background:var(--bg-surface);border:1px solid var(--border-light);border-radius:0 0 var(--radius-lg) var(--radius-lg);text-align:center;color:var(--text-secondary);border-top:none;padding:100px;font-size:16px;font-weight:600}.stats-panel{background:var(--bg-surface);border:1px solid var(--border-light);border-radius:0 0 var(--radius-lg) var(--radius-lg);border-top:none;padding:40px;box-shadow:0 4px 10px #00000008}.stats-summary{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;margin-bottom:48px;display:grid}.stats-card{border-radius:var(--radius-xl);color:#fff;text-align:center;box-shadow:var(--shadow-md);flex-direction:column;justify-content:center;align-items:center;padding:28px 24px;transition:transform .2s,box-shadow .2s;display:flex;position:relative;overflow:hidden}.stats-card:after{content:"";pointer-events:none;background:linear-gradient(#ffffff26 0%,#fff0 100%);position:absolute;inset:0}.stats-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.stats-card--blue{background:linear-gradient(135deg,#3b82f6 0%,#1d4ed8 100%)}.stats-card--teal{background:linear-gradient(135deg,#0ea5e9 0%,#0369a1 100%)}.stats-card--purple{background:linear-gradient(135deg,#8b5cf6 0%,#6d28d9 100%)}.stats-card--orange{background:linear-gradient(135deg,#f59e0b 0%,#b45309 100%)}.stats-card--green{background:linear-gradient(135deg,#10b981 0%,#047857 100%)}.stats-card--red{background:linear-gradient(135deg,#ef4444 0%,#b91c1c 100%)}.stats-card-value{letter-spacing:-.03em;text-shadow:0 2px 4px #0000001a;margin-bottom:12px;font-size:36px;font-weight:800;line-height:1}.stats-card-label{opacity:.95;font-size:14px;font-weight:600}.stats-tables{grid-template-columns:1fr 1fr;gap:40px;margin-bottom:32px;display:grid}@media (width<=1100px){.stats-tables{grid-template-columns:1fr}}.stats-table-title{color:var(--text-primary);border-bottom:2px solid var(--bg-subtle);margin-bottom:20px;padding-bottom:12px;font-size:18px;font-weight:800}.stats-table{border-collapse:separate;border-spacing:0;border:1px solid var(--border-light);border-radius:var(--radius-md);width:100%;font-size:14px;overflow:hidden}.stats-table th{background:var(--bg-subtle);color:var(--text-secondary);text-align:right;border-bottom:1px solid var(--border-light);padding:14px 20px;font-weight:700}.stats-table th:first-child{text-align:left}.stats-table td{text-align:right;color:var(--text-primary);border-bottom:1px solid var(--border-light);padding:14px 20px;font-weight:500}.stats-table tr:last-child td{border-bottom:none}.stats-table td:first-child{text-align:left}.stats-table tr:hover td{background:#f8fafc}.stats-highlight{color:var(--color-primary);font-weight:700}.stats-total-row td{background:var(--bg-main);color:var(--text-primary);border-top:2px solid var(--border-medium);font-weight:800}.stats-sem-label{font-weight:700}.section-dot{vertical-align:middle;border-radius:50%;flex-shrink:0;width:12px;height:12px;margin-right:10px;display:inline-block;box-shadow:inset 0 0 0 1px #0000001a}.stats-note{color:var(--text-secondary);background:var(--bg-main);border-radius:var(--radius-lg);align-items:center;gap:12px;margin-top:24px;padding:20px;font-size:13px;font-weight:500;display:flex}.stats-note:before{content:"ℹ️";font-size:16px}.modal-content--wide{width:720px}.modal-row{gap:16px;display:grid}.modal-row--2col{grid-template-columns:2fr 1fr}.modal-row--3col{grid-template-columns:2fr 1fr 1fr}.modal-row--4col{grid-template-columns:repeat(4,1fr)}.modal-field{flex-direction:column;gap:6px;min-width:0;display:flex}.modal-hint{color:#0369a1;border-radius:var(--radius-md);background:#f0f9ff;border:1px solid #bae6fd;align-items:center;gap:10px;margin-bottom:12px;padding:12px 16px;font-size:13px;font-weight:500;display:flex}.modal-hint:before{content:"💡";font-size:16px}