:root{--bg: #f2f4f7;--surface: #ffffff;--surface-alt: #f8fafc;--text: #111827;--muted: #6b7280;--primary: #0057ff;--border: #d0d7e2;--danger: #b91c1c;--success: #15803d;--warning: #b45309;--radius: 10px}*{box-sizing:border-box}body{margin:0;font-family:IBM Plex Sans,Segoe UI,sans-serif;background:radial-gradient(circle at top right,#d8e7ff 0%,var(--bg) 38%,#eef2f7 100%);color:var(--text)}a{color:inherit;text-decoration:none}.app-shell{min-height:100vh;display:grid;grid-template-columns:260px 1fr}.sidebar{background:#0f172a;color:#e2e8f0;padding:20px 14px}.sidebar h1{margin:0 0 24px;font-size:20px}.nav-link{display:block;padding:10px 12px;border-radius:8px;margin-bottom:6px;color:#cbd5e1}.nav-link.active,.nav-link:hover{background:#1e293b;color:#fff}.main-pane{padding:22px}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px;box-shadow:0 8px 24px #0f172a0a}.button{border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--text);padding:8px 12px;cursor:pointer;font-weight:600}.button.primary{border-color:var(--primary);background:var(--primary);color:#fff}.button.danger{border-color:var(--danger);color:var(--danger)}.button:disabled{opacity:.5;cursor:not-allowed}.table-wrap{overflow-x:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{border-bottom:1px solid var(--border);text-align:left;padding:10px;font-size:14px}.field{display:grid;gap:6px;margin-bottom:12px}.field input,.field textarea,.field select{border:1px solid var(--border);background:#fff;border-radius:8px;padding:8px 10px;font:inherit}.field textarea{min-height:88px}.status{display:inline-flex;border-radius:999px;font-size:12px;padding:4px 8px;font-weight:600}.status.success{background:#dcfce7;color:var(--success)}.status.warning{background:#fff7ed;color:var(--warning)}.status.danger{background:#fee2e2;color:var(--danger)}.status.muted{background:#f1f5f9;color:#334155}.media{width:100%;border-radius:10px;border:1px solid var(--border);background:#000}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#02061773;display:flex;align-items:center;justify-content:center;padding:20px;z-index:50}.modal{width:min(920px,100%);background:#fff;border-radius:14px;border:1px solid var(--border);max-height:90vh;overflow:auto;padding:16px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.inline-actions{display:flex;gap:8px;flex-wrap:wrap}.login-wrap{min-height:100vh;display:grid;place-items:center}.login-card{width:min(420px,100%)}@media(max-width:900px){.app-shell{grid-template-columns:1fr}.sidebar{padding-bottom:8px}.grid-2{grid-template-columns:1fr}}.muted{color:#6b7280}.error-text{color:#b91c1c;font-size:14px}.preview-thumb{width:120px;height:68px;border-radius:8px;object-fit:cover;border:1px solid #d0d7e2}.row-selected{outline:2px solid #60a5fa;border-radius:8px}.section-stack{display:grid;gap:14px}.kv{display:grid;grid-template-columns:180px 1fr;gap:8px;font-size:14px}@media(max-width:900px){.kv{grid-template-columns:1fr}}