:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --danger: #dc2626;
    --success: #16a34a;
    --warning: #d97706;
    --bg: #f5f7fb;
    --card-bg: #ffffff;
    --border: #e5e7eb;
    --text: #1f2937;
    --muted: #6b7280;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
}

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

.topbar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
}
.topbar-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}
.brand { font-weight: 700; font-size: 1.2rem; color: var(--text); }
.topbar nav a { margin-left: 16px; color: var(--text); font-weight: 500; }
.topbar nav a:first-child { margin-left: 0; }
.btn-link {
    background: var(--primary);
    color: #fff !important;
    padding: 6px 14px;
    border-radius: 6px;
}
.user-chip {
    margin-left: 16px;
    color: var(--muted);
    font-size: 0.9rem;
}
.logout-link { color: var(--danger) !important; }

.page-wrap {
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px 20px 60px;
}

h1 { margin-top: 0; }
.muted { color: var(--muted); }

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.95rem;
}
.alert ul { margin: 0; padding-left: 18px; }
.alert-success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-warning { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }

.auth-card {
    max-width: 420px;
    margin: 40px auto;
    background: var(--card-bg);
    padding: 32px;
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.auth-card h1 { font-size: 1.5rem; }

form label {
    display: block;
    margin-bottom: 14px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}
form input[type=text],
form input[type=email],
form input[type=password],
form input[type=number],
form input[type=date],
form input[type=month],
form select,
form textarea {
    display: block;
    width: 100%;
    margin-top: 6px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
}
form textarea { resize: vertical; }

.field-row { display: flex; gap: 12px; }
.field-row label { flex: 1; }

.btn-primary, .btn-secondary, .btn-small, .btn-danger {
    display: inline-block;
    border: none;
    cursor: pointer;
    font-weight: 600;
    border-radius: 8px;
    text-align: center;
    font-family: inherit;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    padding: 11px 22px;
    font-size: 0.95rem;
}
.btn-primary:hover { background: var(--primary-dark); text-decoration: none; }
.btn-secondary {
    background: #fff;
    color: var(--text);
    border: 1px solid var(--border);
    padding: 11px 22px;
    font-size: 0.95rem;
    margin-left: 8px;
}
.btn-small {
    background: #eef2ff;
    color: var(--primary-dark);
    padding: 6px 12px;
    font-size: 0.8rem;
}
.btn-danger { background: #fee2e2; color: var(--danger); margin-left: 6px; }

.hero {
    text-align: center;
    padding: 60px 20px;
}
.hero h1 { font-size: 2.2rem; max-width: 600px; margin: 0 auto 12px; }
.hero p { max-width: 480px; margin: 0 auto 28px; }
.hero-actions .btn-secondary { margin-left: 12px; }

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin: 20px 0 32px;
}
.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    flex-direction: column;
}
.stat-number { font-size: 1.8rem; font-weight: 700; color: var(--primary-dark); }
.stat-label { color: var(--muted); font-size: 0.85rem; margin-top: 4px; }

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-bottom: 28px;
}
@media (max-width: 720px) {
    .two-col { grid-template-columns: 1fr; }
    .field-row { flex-direction: column; }
}

.card-form {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
}

.table-wrap { overflow-x: auto; margin-bottom: 12px; }
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
}
.data-table th, .data-table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    text-align: left;
}
.data-table th { background: #f9fafb; font-weight: 600; }
.actions-cell form { display: inline-block; }

.badge {
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-success { background: #ecfdf5; color: #065f46; }
.badge-danger { background: #fef2f2; color: #991b1b; }

.site-footer {
    text-align: center;
    padding: 20px;
    color: var(--muted);
    font-size: 0.85rem;
}