:root{--bg: #f5f6f8;--surface: #ffffff;--surface-2: #f0f2f5;--text: #1a1d21;--text-muted: #6b7280;--text-faint: #aab1bb;--border: #dde1e6;--border-strong: #c2c8d0;--head-bg: #2b3038;--head-text: #ffffff;--time-bg: #3a4049;--busy-bg: #eaf1fb;--accent: #2b6cb0;--accent-text: #ffffff;--shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .18);--radius: 8px;--divider-color: #9aa3ad;--ideal-bg: #e3f7ea;--ideal-text: #1c7a3f;--semi-bg: #fef6e0;--semi-text: #8a6400;--nicht-bg: #fdebe3;--nicht-text: #9a4a1f;--impossible-bg: #fbe3e6;--impossible-text: #9a2533;--tt-busy-bg: #f6c6c6;--tt-busy-text: #7a1f1f;--tt-current-bg: #ffe08a;--tt-current-text: #6b4e00;--tt-free-bg: #eef1f4;font-family:Segoe UI,system-ui,-apple-system,Arial,sans-serif;font-size:14px}:root[data-theme=dark]{--bg: #14171c;--surface: #1d2127;--surface-2: #252b33;--text: #e6e9ed;--text-muted: #9aa3ad;--text-faint: #5c656f;--border: #2f353d;--border-strong: #3c434c;--head-bg: #0f1216;--head-text: #e6e9ed;--time-bg: #2a3038;--busy-bg: #232c39;--accent: #4a90d9;--accent-text: #ffffff;--shadow: 0 1px 3px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 28px rgba(0, 0, 0, .6);--divider-color: #4c5560;--ideal-bg: #16331f;--ideal-text: #6fd897;--semi-bg: #332b14;--semi-text: #e3c067;--nicht-bg: #3a2418;--nicht-text: #e09a6f;--impossible-bg: #3a1c22;--impossible-text: #e07a86;--tt-busy-bg: #5a2424;--tt-busy-text: #f0b4b4;--tt-current-bg: #5c4500;--tt-current-text: #ffe08a;--tt-free-bg: #2a3038}*{box-sizing:border-box}body{margin:0;color:var(--text);background:var(--bg);transition:background .2s,color .2s}.app{max-width:1400px;margin:0 auto;padding:12px 16px 40px}.topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;border-bottom:1px solid var(--border);padding-bottom:12px}.title h1{margin:0;font-size:20px;letter-spacing:-.01em}.subtitle{color:var(--text-muted);font-size:12px}.controls{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.upload{cursor:pointer;background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius);padding:6px 12px;transition:background .15s}.upload:hover{background:var(--surface-2)}.upload input{display:none}.source{font-size:12px;color:var(--text-muted);max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.week-toggle{display:flex}.week-toggle button{border:1px solid var(--border-strong);background:var(--surface);color:var(--text);padding:6px 12px;cursor:pointer}.week-toggle button:first-child{border-radius:var(--radius) 0 0 var(--radius)}.week-toggle button:last-child{border-radius:0 var(--radius) var(--radius) 0;border-left:none}.week-toggle button.active{background:var(--accent);color:var(--accent-text);border-color:var(--accent)}.theme-toggle{border:1px solid var(--border-strong);background:var(--surface);border-radius:var(--radius);padding:6px 10px;cursor:pointer;font-size:15px;line-height:1}.theme-toggle:hover{background:var(--surface-2)}.tabs{display:flex;gap:6px;margin:16px 0;flex-wrap:wrap}.tabs button{border:1px solid var(--border);background:var(--surface);color:var(--text);padding:8px 16px;cursor:pointer;border-radius:var(--radius);transition:background .15s,border-color .15s}.tabs button:hover{background:var(--surface-2)}.tabs button.active{background:var(--accent);color:var(--accent-text);border-color:var(--accent);font-weight:600}.picker{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px}.picker-label{font-weight:600}.picker select{padding:7px 10px;min-width:260px;border:1px solid var(--border-strong);border-radius:var(--radius);background:var(--surface);color:var(--text)}.legend{color:var(--text-muted);font-size:12px;margin:6px 0 14px;line-height:1.6}.error{background:var(--impossible-bg);border:1px solid var(--border-strong);color:var(--impossible-text);padding:12px;border-radius:var(--radius)}.loading{color:var(--text-muted);padding:20px}table.schedule{width:100%;border-collapse:collapse;table-layout:fixed;background:var(--surface);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.schedule th,.schedule td{border:1px solid var(--border);text-align:center;padding:4px;vertical-align:middle;word-break:break-word}.schedule th{background:var(--head-bg);color:var(--head-text);padding:8px 4px;font-weight:600}.time-column{background:var(--time-bg);color:#fff;width:56px;font-weight:600;vertical-align:middle}.period-num{display:block;font-size:15px}.period-time{display:block;font-weight:400;font-size:10px;line-height:1.15;opacity:.85}.cell{height:54px;background:var(--surface)}.cell.busy{background:var(--busy-bg)}.schedule tr.divider td{border-bottom:3px solid var(--divider-color)}.lesson{display:flex;flex-direction:column;gap:3px;align-items:center;justify-content:center}.lesson-line{font-size:12px;line-height:1.35}.own{font-size:12px}.room{color:var(--text-muted);margin-left:4px}.none{color:var(--text-faint)}.subs{display:flex;flex-wrap:wrap;gap:4px;justify-content:center;margin-top:4px;font-size:11px}.sub{cursor:default;white-space:nowrap;color:var(--text);padding:1px 3px;border-radius:4px;transition:background .12s}.sub:hover{background:var(--accent);color:var(--accent-text)}.sub.bold{font-weight:700}.sub.italic{font-style:italic}.sub.underline{text-decoration:underline}.day-tooltip{position:fixed;z-index:50;width:184px;background:var(--surface);border:1px solid var(--border-strong);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:8px;pointer-events:none}.tt-name{font-weight:600;font-size:12px;margin-bottom:6px;color:var(--text)}.tt-strip{display:flex;flex-direction:column;gap:2px}.tt-cell{display:flex;align-items:center;gap:6px;font-size:11px;padding:2px 5px;border-radius:4px;background:var(--tt-free-bg);min-height:18px}.tt-period{flex:0 0 16px;font-weight:600;color:var(--text-muted);text-align:right}.tt-content{flex:1;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.tt-busy{background:var(--tt-busy-bg)}.tt-busy .tt-content,.tt-busy .tt-period{color:var(--tt-busy-text)}.tt-current{background:var(--tt-current-bg);outline:2px solid var(--tt-current-text)}.tt-current .tt-content,.tt-current .tt-period{color:var(--tt-current-text);font-weight:600}.free-rooms{display:flex;flex-wrap:wrap;gap:4px;justify-content:center;font-size:11px}.free-room{white-space:nowrap;border:1px solid var(--border-strong);background:var(--surface);color:var(--text);border-radius:4px;padding:2px 6px;cursor:pointer;transition:background .12s}.free-room:hover{background:var(--accent);color:var(--accent-text);border-color:var(--accent)}.ms-teacher-grid{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:16px}.ms-chip{border:1px solid var(--border-strong);background:var(--surface);color:var(--text);border-radius:999px;padding:4px 11px;cursor:pointer;font-size:12px;transition:background .12s,border-color .12s}.ms-chip:hover{background:var(--surface-2)}.ms-chip.active{background:var(--accent);color:var(--accent-text);border-color:var(--accent);font-weight:600}.ms-tag{font-size:11px;font-weight:600}.ms-busy-list{display:flex;flex-wrap:wrap;gap:3px;justify-content:center;font-size:11px}.ms-busy{white-space:nowrap;color:var(--impossible-text);font-weight:600}.ms-cell.ms-ideal{background:var(--ideal-bg)}.ms-cell.ms-ideal .ms-tag{color:var(--ideal-text)}.ms-cell.ms-semi{background:var(--semi-bg)}.ms-cell.ms-semi .ms-tag{color:var(--semi-text)}.ms-cell.ms-nicht{background:var(--nicht-bg)}.ms-cell.ms-nicht .ms-tag{color:var(--nicht-text)}.ms-cell.ms-impossible{background:var(--impossible-bg)}.ms-key{display:inline-block;padding:1px 7px;border-radius:4px;font-weight:600}.ms-key.ms-ideal{background:var(--ideal-bg);color:var(--ideal-text)}.ms-key.ms-semi{background:var(--semi-bg);color:var(--semi-text)}.ms-key.ms-nicht{background:var(--nicht-bg);color:var(--nicht-text)}.ms-key.ms-impossible{background:var(--impossible-bg);color:var(--impossible-text)}