:root{--bg:#f4f6fb;--card:#fff;--txt:#111827;--muted:#6b7280;--blue:#2563eb;--red:#dc2626;--green:#16a34a;--border:#e5e7eb}*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;background:var(--bg);color:var(--txt)}a{color:var(--blue);text-decoration:none}.topbar,.container{width:min(1200px,calc(100% - 28px));margin:auto}.topbar{margin-top:18px;background:#fff;border-radius:18px;padding:18px;display:flex;justify-content:space-between;gap:15px;align-items:center;box-shadow:0 10px 30px #0001}.topbar h1{margin:0}.topbar p{margin:6px 0 0;color:var(--muted)}nav{display:flex;gap:12px;flex-wrap:wrap}.container{background:#fff;border-radius:18px;padding:20px;margin-top:18px;margin-bottom:40px;box-shadow:0 10px 30px #0001}.auth-card{max-width:440px;margin:auto}.grid-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.full{grid-column:1/-1}label{font-weight:700}input,select,textarea{width:100%;padding:12px;margin-top:6px;border:1px solid var(--border);border-radius:12px;font-size:16px}textarea{min-height:110px}button,.btn{display:inline-block;border:0;border-radius:12px;padding:12px 16px;background:var(--blue);color:#fff;font-weight:800;cursor:pointer}.danger{color:var(--red)!important}.alert{padding:13px;border-radius:12px;margin:12px 0;font-weight:700}.alert.error{background:#fee2e2;color:#991b1b}.alert.success{background:#dcfce7;color:#166534}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.card{padding:18px;border:1px solid var(--border);border-radius:16px;background:#fafafa}.card strong,.card span{display:block}.card span{margin-top:8px;color:var(--muted)}.search{display:flex;gap:10px;margin-bottom:15px}.table-responsive{overflow-x:auto}table{width:100%;border-collapse:collapse}th,td{padding:11px;border-bottom:1px solid var(--border);text-align:left;vertical-align:middle}.thumb{width:62px;height:62px;object-fit:cover;border-radius:10px}@media(max-width:760px){.topbar{align-items:flex-start;flex-direction:column}.grid-form,.cards{grid-template-columns:1fr}.search{flex-direction:column}table{min-width:760px}}