:root{--bg: #f4f6fb;--panel: #ffffff;--border: #e3e8f0;--text: #0f172a;--muted: #64748b;--primary: #2563eb;--primary-dark: #1d4ed8;--danger: #dc2626;--success: #16a34a;--warning: #d97706;--radius: 12px;--shadow: 0 1px 3px rgba(15, 23, 42, .08)}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Tahoma,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px}a{color:inherit;text-decoration:none}.app-shell{display:flex;min-height:100vh}.sidebar{width:250px;background:var(--panel);border-left:1px solid var(--border);padding:16px 12px;display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar .brand{display:flex;align-items:center;gap:10px;padding:8px 10px 18px;font-weight:700;font-size:18px}.sidebar .brand .logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#7c3aed);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}.nav-item{display:block;padding:9px 12px;border-radius:8px;color:var(--muted);font-weight:500;cursor:pointer}.nav-item:hover,.nav-item.active{background:#eef2ff;color:var(--primary)}.nav-section{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;padding:14px 12px 4px}.content{flex:1;padding:24px 28px;max-width:1200px;margin:0 auto;width:100%}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.topbar .page-title{font-size:20px;font-weight:700}.topbar .actions{display:flex;gap:8px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:16px}.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:var(--panel);color:var(--text);padding:8px 14px;border-radius:8px;font-weight:600;cursor:pointer;font-size:13px}.btn:hover{border-color:var(--primary);color:var(--primary)}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-dark)}.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}.btn.success{background:var(--success);border-color:var(--success);color:#fff}.btn.sm{padding:4px 9px;font-size:12px}.btn:disabled{opacity:.5;cursor:not-allowed}table.data{width:100%;border-collapse:collapse}table.data th,table.data td{text-align:right;padding:9px 12px;border-bottom:1px solid var(--border);vertical-align:middle}table.data th{color:var(--muted);font-size:12px;font-weight:600}table.data tr:hover td{background:#f8fafc}.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600}.badge.green{background:#dcfce7;color:var(--success)}.badge.red{background:#fee2e2;color:var(--danger)}.badge.amber{background:#fef3c7;color:var(--warning)}.badge.blue{background:#dbeafe;color:var(--primary)}.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.chip{padding:7px 14px;border-radius:999px;border:1px solid var(--border);background:var(--panel);color:var(--muted);cursor:pointer;font-weight:600;font-size:13px}.chip.active{background:var(--primary);border-color:var(--primary);color:#fff}.field{margin-bottom:12px}.field label{display:block;font-size:12px;color:var(--muted);margin-bottom:5px;font-weight:600}.field input,.field select,.field textarea{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:8px;font-size:13px;background:#fff;color:var(--text)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a66;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:var(--panel);border-radius:var(--radius);padding:22px;width:460px;max-width:92vw;max-height:86vh;overflow-y:auto}.modal h3{margin:0 0 14px}.alert{border-radius:10px;padding:10px 14px;margin-bottom:12px;font-size:13px}.alert.error{background:#fee2e2;color:var(--danger)}.alert.success{background:#dcfce7;color:var(--success)}.alert.info{background:#dbeafe;color:var(--primary)}.stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}.stat{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.stat .value{font-size:26px;font-weight:800}.stat .label{color:var(--muted);font-size:13px}.week{overflow-x:auto}.week-grid{display:grid;grid-template-columns:90px repeat(5,minmax(150px,1fr));gap:6px;min-width:860px}.week-grid .head{font-weight:700;text-align:center;padding:8px;background:#eef2ff;border-radius:8px;color:var(--primary)}.week-grid .time-col{font-size:12px;color:var(--muted);display:flex;align-items:center;padding:0 6px}.cell{background:var(--panel);border:1px solid var(--border);border-radius:8px;min-height:96px;padding:6px;display:flex;flex-direction:column;gap:4px;cursor:pointer}.cell.empty{background:#f8fafc}.cell.requires-lab{border-color:#c4b5fd}.entry-card{background:#dbeafe;color:var(--primary-dark);border-radius:7px;padding:5px 8px;font-size:12px;cursor:grab}.entry-card.selected{outline:2px solid var(--primary);background:var(--primary);color:#fff}.entry-card.lab{background:#ede9fe;color:#6d28d9}.entry-card .code{font-weight:700}.entry-card .sub{font-size:11px;opacity:.85}