:root {
    --primary: #b8863b;
    --primary-dark: #96692a;
    --dark: #1f2937;
    --gray: #6b7280;
    --gray-light: #f3f4f6;
    --border: #e5e7eb;
    --green: #16a34a;
    --red: #dc2626;
    --orange: #ea580c;
    --blue: #2563eb;
    --purple: #7c3aed;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #f9fafb;
    color: var(--dark);
    margin: 0;
    line-height: 1.5;
}

a { color: var(--primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
    background: var(--dark);
    color: #fff;
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.topbar .brand { font-weight: 700; font-size: 18px; color: #fff; }
.topbar .brand span { color: var(--primary); }
.topbar nav a { color: #d1d5db; margin-left: 18px; font-size: 14px; }
.topbar nav a:hover, .topbar nav a.active { color: #fff; text-decoration: none; }

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 24px;
}

.center-box {
    max-width: 420px;
    margin: 60px auto;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
}

.card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}

.card h2, .card h3 { margin-top: 0; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.stat {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
}
.stat .value { font-size: 28px; font-weight: 700; color: var(--primary-dark); }
.stat .label { color: var(--gray); font-size: 13px; margin-top: 4px; }

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
th, td {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
}
th { background: var(--gray-light); font-weight: 600; color: var(--gray); font-size: 12px; text-transform: uppercase; }
tr:hover td { background: #fafafa; }

.btn {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    font-weight: 600;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; color: #fff; }
.btn.secondary { background: var(--gray-light); color: var(--dark); }
.btn.secondary:hover { background: var(--border); }
.btn.danger { background: var(--red); }
.btn.small { padding: 6px 12px; font-size: 13px; }

.form-group { margin-bottom: 16px; text-align: left; }
.form-group label { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 600; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}
.badge-gray { background: #f3f4f6; color: #4b5563; }
.badge-blue { background: #dbeafe; color: #1d4ed8; }
.badge-purple { background: #ede9fe; color: #6d28d9; }
.badge-orange { background: #ffedd5; color: #c2410c; }
.badge-green { background: #dcfce7; color: #15803d; }
.badge-red { background: #fee2e2; color: #b91c1c; }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: #dcfce7; color: #15803d; }
.alert-error { background: #fee2e2; color: #b91c1c; }
.alert-info { background: #dbeafe; color: #1d4ed8; }

.checkin-icon { font-size: 56px; margin-bottom: 10px; }
.checkin-time { font-size: 42px; font-weight: 700; color: var(--primary-dark); margin: 10px 0; }

.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 10px; }
.filters { display: flex; gap: 10px; flex-wrap: wrap; }
.filters select, .filters input { padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px; }

.qr-card { text-align: center; padding: 24px; }
.qr-card img { border: 8px solid #fff; box-shadow: 0 0 0 1px var(--border); border-radius: 8px; }

@media print {
    .topbar, .no-print { display: none !important; }
    body { background: #fff; }
}