:root{--text:#4b5563;--text-h:#0b0e14;--muted:#8a93a3;--bg:#f4f5f7;--panel:#fff;--border:#e2e5ea;--code-bg:#f0f1f4;--accent:#aa3bff;--accent-bg:#aa3bff1a;--good:#16a34a;--good-bg:#16a34a1a;--bad:#dc2626;--bad-bg:#dc26261f;--shadow:#10121b0f 0 1px 3px, #10121b0a 0 4px 12px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:15px/1.45 var(--sans);color:var(--text);background:var(--bg);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--text:#b4bccb;--text-h:#f2f4f8;--muted:#7d8696;--bg:#0f1115;--panel:#181b22;--border:#2a2e38;--code-bg:#1f232c;--accent:#c084fc;--accent-bg:#c084fc29;--good:#4ade80;--good-bg:#4ade8024;--bad:#f87171;--bad-bg:#f8717129;--shadow:#0006 0 1px 3px, #0000004d 0 4px 12px}}*{box-sizing:border-box}body{margin:0}#root{min-height:100svh}h1,h2,h3{color:var(--text-h);margin:0;font-weight:600}code{font-family:var(--mono);background:var(--code-bg);color:var(--text-h);border-radius:4px;padding:2px 5px;font-size:.85em}.app{flex-direction:column;height:100svh;display:flex}.topbar{background:var(--panel);border-bottom:1px solid var(--border);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:12px 20px;display:flex}.title h1{letter-spacing:-.3px;font-size:20px}.subtitle{color:var(--muted);font-size:13px}.actions{gap:8px;display:flex}button{font:inherit;color:var(--text-h);background:var(--panel);border:1px solid var(--border);cursor:pointer;border-radius:8px;padding:7px 12px;font-size:13px;font-weight:500;transition:background .12s,border-color .12s}button:hover{border-color:var(--accent)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.toggle.on{background:var(--accent-bg);border-color:var(--accent);color:var(--accent)}.layout{flex:1;min-height:0;display:flex}.board{flex-direction:column;flex:1;gap:24px;padding:20px;display:flex;overflow-y:auto}.empty-board{color:var(--muted);margin:auto}.year-head{align-items:center;gap:10px;margin-bottom:10px;display:flex}.year-head h2{font-size:17px}.remove-year{color:var(--muted);background:0 0;border-color:#0000;padding:2px 8px;font-size:12px}.remove-year:hover{color:var(--bad);border-color:var(--bad)}.semesters{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.sem{background:var(--panel);border:1px solid var(--border);border-radius:12px;flex-direction:column;min-height:140px;transition:border-color .12s,background .12s,box-shadow .12s;display:flex}.sem-head{color:var(--text-h);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:8px 12px;font-weight:600;display:flex}.sem-credits{color:var(--muted);font-size:12px;font-weight:500}.sem-body{flex-direction:column;flex:1;gap:8px;padding:10px;display:flex}.sem.valid{border-color:var(--good)}.sem.invalid{opacity:.55}.sem.over.valid{background:var(--good-bg);box-shadow:inset 0 0 0 2px var(--good)}.sem.over.invalid{background:var(--bad-bg);box-shadow:inset 0 0 0 2px var(--bad)}.sem.over{box-shadow:inset 0 0 0 2px var(--accent)}.sidebar{background:var(--panel);border-left:1px solid var(--border);flex-direction:column;flex-shrink:0;width:340px;min-height:0;display:flex}.sidebar-head{border-bottom:1px solid var(--border);padding:14px 16px}.sidebar-head h2{margin-bottom:8px;font-size:15px}.sidebar-head input{width:100%;font:inherit;border:1px solid var(--border);background:var(--bg);color:var(--text-h);border-radius:8px;padding:7px 10px;font-size:13px}.sidebar-head input:focus{border-color:var(--accent);outline:none}.sidebar-body{flex-direction:column;gap:14px;padding:12px;display:flex;overflow-y:auto}.empty{color:var(--muted);text-align:center;padding:16px 0;font-size:13px}.group{flex-direction:column;gap:6px;display:flex}.group-head{text-transform:uppercase;letter-spacing:.4px;border-left:4px solid var(--cat,var(--accent));background:var(--cat-bg,var(--accent-bg));color:var(--text-h);border-radius:6px;justify-content:space-between;align-items:center;padding:4px 8px;font-size:12px;display:flex}.group-head span{color:var(--muted);font-weight:600}.card{background:var(--panel);border:1px solid var(--border);border-left:4px solid var(--cat,var(--accent));cursor:grab;box-shadow:var(--shadow);-webkit-user-select:none;user-select:none;border-radius:8px;padding:8px 10px}.card:active{cursor:grabbing}.card.dragging{opacity:.4}.card.overlay{cursor:grabbing;transform:rotate(1.5deg);box-shadow:0 8px 24px #00000047}.card-name{color:var(--text-h);font-size:13px;font-weight:600;line-height:1.3}.card-meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px;margin-top:6px;font-size:11px;display:flex}.card-meta .code{font-family:var(--mono)}.card-meta .cp{font-weight:600}.offered{gap:3px;margin-left:auto;display:inline-flex}.sem-badge{background:var(--code-bg);width:22px;height:16px;color:var(--muted);border-radius:4px;justify-content:center;align-items:center;font-size:10px;font-weight:600;display:inline-flex}.sem-badge.on{background:var(--good-bg);color:var(--good)}.card.flash{animation:.7s flash-bad}@keyframes flash-bad{0%,to{border-color:var(--border);background:var(--panel)}15%,60%{border-color:var(--bad);background:var(--bad-bg);transform:translate(0)}25%{transform:translate(-5px)}40%{transform:translate(5px)}}.cat-core{--cat:#2563eb;--cat-bg:#2563eb1a}.cat-core-option{--cat:#0891b2;--cat-bg:#0891b21a}.cat-elective{--cat:#ca8a04;--cat-bg:#ca8a041f}.cat-painting-studio{--cat:#dc2626;--cat-bg:#dc26261a}.cat-photography-studio{--cat:#7c3aed;--cat-bg:#7c3aed1a}.cat-sculpture-studio{--cat:#059669;--cat-bg:#0596691a}.modal-backdrop{z-index:10;background:#080a1080;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--panel);border:1px solid var(--border);width:560px;max-width:100%;box-shadow:var(--shadow);border-radius:14px;padding:22px}.modal h2{margin-bottom:8px;font-size:18px}.modal p{color:var(--muted);margin-bottom:12px;font-size:13px}.modal textarea{width:100%;font-family:var(--mono);border:1px solid var(--border);background:var(--bg);color:var(--text-h);resize:vertical;border-radius:8px;padding:10px;font-size:12px}.modal-actions{justify-content:flex-end;gap:8px;margin-top:14px;display:flex}@media (width<=720px){.semesters{grid-template-columns:1fr}.sidebar{border-left:none;border-top:1px solid var(--border);z-index:5;width:100%;height:38svh;position:fixed;inset:auto 0 0;box-shadow:0 -4px 16px #0000002e}.sidebar-head{padding:10px 12px}.sidebar-body{gap:10px;padding:10px}.sidebar .card{padding:6px 9px}.board{padding-bottom:40svh}}