* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    background: #f4f6f8;
    color: #1a1a1a;
    line-height: 1.5;
}

.container {
    max-width: 960px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.page-header {
    margin-bottom: 1.5rem;
}

.page-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
}

.subtitle {
    color: #5c6670;
    margin-top: 0.25rem;
}

.card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid #e8ecef;
}

.data-table th {
    background: #f8fafb;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: #5c6670;
}

.data-table tbody tr:hover {
    background: #fafbfc;
}

.empty {
    text-align: center;
    color: #5c6670;
    padding: 2rem !important;
}

.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: capitalize;
}

.badge-active {
    background: #d4edda;
    color: #155724;
}

.badge-inactive {
    background: #f8d7da;
    color: #721c24;
}

.alert {
    padding: 1rem;
    border-radius: 8px;
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    margin-bottom: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    line-height: 1.4;
}

.btn-primary {
    background: #2563eb;
    color: #fff;
}

.btn-primary:hover {
    background: #1d4ed8;
}

.btn-secondary {
    background: #e8ecef;
    color: #1a1a1a;
}

.btn-secondary:hover {
    background: #dde2e6;
}

.card-form {
    padding: 1.5rem;
}

.item-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.35rem;
    font-size: 0.9rem;
}

.required {
    color: #c0392b;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid #d0d7de;
    border-radius: 6px;
    font: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.input-error {
    border-color: #c0392b !important;
}

.field-error {
    color: #c0392b;
    font-size: 0.85rem;
    margin-top: 0.35rem;
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    padding-top: 0.5rem;
}