@import"https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600&display=swap";:root{--primary: #6366f1;--primary-hover: #4f46e5;--bg-main: #020617;--card-bg: #0f172a;--header-bg: #1e293b;--border: rgba(255, 255, 255, .05);--text-main: #f1f5f9;--text-muted: #94a3b8;--status-submitted: #10b981;--status-unsubmitted: #f43f5e;--status-na: #475569}body{margin:0;padding:0;font-family:Outfit,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-main);color:var(--text-main);min-height:100vh;font-size:13px;line-height:1.4}.container{max-width:100%;margin:0 auto;padding:1rem 1.5rem}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}h1{font-size:1.5rem;font-weight:600;margin:0;color:var(--text-main);letter-spacing:-.025em}.table-wrapper{background:var(--card-bg);border-radius:.5rem;border:1px solid var(--border);overflow:auto;max-height:calc(100vh - 120px);scrollbar-width:thin;scrollbar-color:var(--header-bg) transparent}.table-wrapper::-webkit-scrollbar{width:8px;height:8px}.table-wrapper::-webkit-scrollbar-track{background:transparent}.table-wrapper::-webkit-scrollbar-thumb{background:var(--header-bg);border-radius:4px}table{width:100%;border-collapse:collapse;text-align:center;border-spacing:0}th{background:var(--header-bg);color:#fff;font-weight:500;padding:6px 8px;font-size:12px;border-right:1px solid var(--border);border-bottom:2px solid var(--border);position:sticky;top:0;z-index:10;white-space:nowrap}td{padding:4px 8px;border-bottom:1px solid var(--border);border-right:1px solid var(--border);white-space:nowrap;transition:background-color .15s}tr:hover td{background-color:#ffffff12}.student-number{font-weight:600;color:var(--primary);position:sticky;left:0;background-color:#0f172a!important;z-index:5;box-shadow:2px 0 5px #0000004d;width:1px;white-space:nowrap;text-align:left!important;padding-left:12px!important;border-left:3px solid transparent;transition:all .15s}tr:hover .student-number{background-color:#1e293b!important;border-left-color:var(--primary)}.status-cell{padding:2px 4px}.status-badge{display:inline-block;width:10px;height:10px;border-radius:50%;vertical-align:middle}.status-submitted{background-color:var(--status-submitted);box-shadow:0 0 8px #10b98166}.status-unsubmitted{background-color:var(--status-unsubmitted);box-shadow:0 0 8px #f43f5e66}.status-not_applicable{background-color:var(--status-na)}.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border-radius:6px;font-size:13px;font-weight:600;cursor:pointer;border:none;transition:all .2s;gap:8px}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 12px #6366f133}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:#ffffff0d;color:var(--text-main);border:1px solid var(--border)}.btn-secondary:hover{background:#ffffff1a}.btn-add{background:var(--primary);color:#fff;border:none;width:2rem;height:2rem;border-radius:.375rem;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 10px #6366f14d}.btn-delete{background:transparent;color:var(--text-muted);border:none;cursor:pointer;padding:2px;opacity:.5}.btn-delete:hover{color:#ef4444;opacity:1}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000c;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background:var(--card-bg);color:var(--text-main);border:1px solid var(--border);padding:1.5rem;border-radius:12px;width:90%;max-width:500px;box-shadow:0 20px 40px #0006}.modal-title{font-size:1.25rem;font-weight:600;margin:0 0 1.5rem;color:#fff}.modal-actions{display:flex;justify-content:flex-end;gap:12px}.form-group{margin-bottom:1.25rem}.form-group label{display:block;color:var(--text-muted);font-size:12px;margin-bottom:6px}.form-group input,.form-group textarea{width:100%;background:#0003;border:1px solid var(--border);color:var(--text-main);padding:8px 12px;border-radius:6px;font-size:14px;box-sizing:border-box}.delete-warning{background:#ef44441a;color:#fb7185;padding:12px;border-radius:6px;display:flex;align-items:center;gap:10px;font-weight:600;border:1px solid rgba(239,68,68,.2);margin-bottom:1.5rem}.input-confirm{background:#0000004d!important;border:1px solid #f43f5e!important;color:#fff!important}input[type=datetime-local]::-webkit-calendar-picker-indicator{filter:invert(1);cursor:pointer}.radio-group{display:flex;gap:1.5rem;padding:10px 14px;background:#0003;border:1px solid var(--border);border-radius:6px;margin-top:4px}.radio-option{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:13px;color:var(--text-main);transition:opacity .2s}.radio-option:hover{opacity:.8}.radio-option input[type=radio]{width:14px;height:14px;accent-color:var(--primary);margin:0;cursor:pointer}