:root {
    --bg: #f5f7fb;
    --card: #ffffff;
    --text: #172033;
    --muted: #6b7280;
    --line: #e5e7eb;
    --primary: #0f766e;
    --primary-dark: #115e59;
    --danger: #b91c1c;
    --warning: #b45309;
    --ok: #047857;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; color: var(--text); background: var(--bg); line-height: 1.55; }
a { color: var(--primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.topbar { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--text); }
.logo { width: 36px; height: 36px; border-radius: 12px; display: grid; place-items: center; background: var(--primary); color: white; font-weight: 800; }
.nav { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.nav a { padding: 8px 10px; border-radius: 10px; color: var(--text); font-weight: 600; }
.nav a:hover, .nav a.active { background: #ecfdf5; text-decoration: none; color: var(--primary-dark); }
.hero { padding: 58px 0; background: linear-gradient(120deg, #ecfdf5, #eff6ff); border-bottom: 1px solid var(--line); }
.hero-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 24px; align-items: center; }
.hero h1 { font-size: clamp(32px, 5vw, 54px); line-height: 1.05; margin: 0 0 16px; }
.hero p { font-size: 18px; color: #374151; margin: 0 0 24px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 20px; box-shadow: 0 10px 25px rgba(15, 23, 42, .04); }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.section { padding: 34px 0; }
.badge { display: inline-flex; gap: 6px; align-items: center; padding: 5px 10px; background: #ecfdf5; color: var(--primary-dark); border-radius: 999px; font-weight: 700; font-size: 12px; }
.btn { border: 0; background: var(--primary); color: white; padding: 10px 14px; border-radius: 12px; font-weight: 700; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; }
.btn:hover { background: var(--primary-dark); text-decoration: none; }
.btn.secondary { background: #e5e7eb; color: #111827; }
.btn.danger { background: var(--danger); }
.btn.small { padding: 7px 10px; font-size: 13px; border-radius: 10px; }
.form-control, select, textarea, input[type="text"], input[type="email"], input[type="password"], input[type="date"], input[type="datetime-local"], input[type="number"] {
    width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; background: white; color: var(--text); min-height: 42px;
}
textarea { min-height: 90px; resize: vertical; }
label { display: block; font-weight: 700; margin: 0 0 6px; }
.form-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form-row-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: white; }
table { width: 100%; border-collapse: collapse; min-width: 780px; }
th, td { padding: 12px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: #f9fafb; font-size: 13px; text-transform: uppercase; color: #4b5563; }
tr:last-child td { border-bottom: 0; }
.alert { padding: 12px 14px; border-radius: 14px; margin: 12px 0; border: 1px solid var(--line); background: white; }
.alert.success { border-color: #bbf7d0; background: #f0fdf4; color: #166534; }
.alert.error { border-color: #fecaca; background: #fef2f2; color: #991b1b; }
.admin-layout { display: grid; grid-template-columns: 250px 1fr; min-height: 100vh; }
.sidebar { background: #111827; color: white; padding: 18px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.sidebar .brand { color: white; margin-bottom: 16px; }
.sidebar a { display: block; color: #d1d5db; padding: 10px 12px; border-radius: 12px; margin-bottom: 5px; }
.sidebar a:hover, .sidebar a.active { background: rgba(255,255,255,.1); color: white; text-decoration: none; }
.main { padding: 22px; }
.main-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.stat h3 { margin: 0; color: var(--muted); font-size: 14px; }
.stat strong { font-size: 30px; }
.actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.footer { padding: 24px 0; color: var(--muted); text-align: center; border-top: 1px solid var(--line); background: white; }
.print-only { display: none; }
.question-box { border: 1px solid var(--line); border-radius: 16px; padding: 16px; margin-bottom: 14px; background: white; }
.option { display: flex; gap: 10px; align-items: flex-start; padding: 9px 0; }
@media (max-width: 860px) {
    .hero-grid, .grid-2, .grid-3, .grid-4, .stats, .form-row, .form-row-3, .admin-layout { grid-template-columns: 1fr; }
    .sidebar { position: relative; height: auto; }
    .main { padding: 16px; }
    .topbar-inner { align-items: flex-start; flex-direction: column; }
}
@media print {
    body { background: white; }
    .no-print, .sidebar, .main-header, .topbar, .footer { display: none !important; }
    .admin-layout { display: block; }
    .main { padding: 0; }
    .card { border: 0; box-shadow: none; padding: 0; }
    .print-only { display: block; }
    table { min-width: 0; }
}