:root {
    --toc-navy: #2a2769;
    --toc-yellow: #f9c81d;
    --toc-white: #ffffff;
    --toc-black: #000000;
    --toc-gray: #e8e7ef;
    --toc-gray-bg: #f5f6fa;
    --toc-border: #e5e7eb;
    --toc-text: #1f2333;
    --toc-text-muted: #6b7280;
    --toc-danger: #dc2626;
    --toc-success: #047857;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    color: var(--toc-text);
    background: var(--toc-gray-bg);
}

a {
    color: var(--toc-navy);
}

/* --- Admin shell ---------------------------------------------------- */
.admin-shell {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background: var(--toc-white);
    border-right: 1px solid var(--toc-border);
    display: flex;
    flex-direction: column;
}

.admin-sidebar__brand {
    padding: 1.5rem 1.25rem 1.25rem;
    border-bottom: 1px solid var(--toc-border);
    text-align: center;
}

.admin-sidebar__brand img {
    max-width: 160px;
    height: auto;
}

.admin-nav {
    padding: 1rem 0.75rem;
    overflow-y: auto;
    flex: 1;
}

.admin-nav__group-label {
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--toc-navy);
    margin: 1.25rem 0.75rem 0.5rem;
}

.admin-nav__group-label:first-child {
    margin-top: 0;
}

.admin-nav a {
    display: block;
    padding: 0.6rem 1rem;
    margin: 0.15rem 0;
    border-radius: 9999px;
    text-decoration: none;
    color: #4b5563;
    font-weight: 500;
    font-size: 0.9rem;
    border: 1.5px solid transparent;
}

.admin-nav a:hover {
    background: rgba(42, 39, 105, 0.05);
    color: var(--toc-navy);
}

.admin-nav a.is-active {
    background: var(--toc-white);
    border-color: var(--toc-yellow);
    color: var(--toc-navy);
    font-weight: 700;
    box-shadow: 0 1px 3px rgba(42, 39, 105, 0.08);
}

.admin-main {
    flex: 1;
    min-width: 0;
}

.admin-topbar {
    background: var(--toc-navy);
    border-bottom: 3px solid var(--toc-yellow);
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--toc-white);
}

.admin-topbar__user {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
}

.admin-content {
    padding: 2rem;
    max-width: 1200px;
}

.admin-page-title {
    color: var(--toc-navy);
    font-weight: 700;
    font-size: 1.5rem;
    position: relative;
    padding-bottom: 0.6rem;
    margin: 0 0 1.5rem;
}

.admin-page-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 2.25rem;
    height: 3px;
    border-radius: 9999px;
    background: var(--toc-yellow);
}

/* --- Cards / tables --------------------------------------------------- */
.card {
    background: var(--toc-white);
    border: 1px solid var(--toc-border);
    border-radius: 1.25rem;
    padding: 1.5rem;
    box-shadow: 0 1px 2px rgba(42, 39, 105, 0.04);
}

.toolbar {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 6px;
}

.data-table th {
    text-align: left;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--toc-text-muted);
    padding: 0.5rem 0.85rem;
}

.data-table td {
    background: var(--toc-white);
    padding: 0.85rem;
    border-top: 1px solid var(--toc-border);
    border-bottom: 1px solid var(--toc-border);
}

.data-table tr td:first-child {
    border-left: 1px solid var(--toc-border);
    border-top-left-radius: 0.75rem;
    border-bottom-left-radius: 0.75rem;
}

.data-table tr td:last-child {
    border-right: 1px solid var(--toc-border);
    border-top-right-radius: 0.75rem;
    border-bottom-right-radius: 0.75rem;
    text-align: right;
}

/* --- Forms -------------------------------------------------------------- */
.field {
    margin-bottom: 1.1rem;
}

.field label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 0.35rem;
    color: var(--toc-text);
}

.field input[type="text"],
.field input[type="email"],
.field input[type="password"],
.field input[type="number"],
.field input[type="date"],
.field input[type="datetime-local"],
.field input[type="file"],
.field select,
.field textarea {
    width: 100%;
    padding: 0.6rem 0.85rem;
    border-radius: 0.6rem;
    border: 1px solid var(--toc-border);
    background: #f9fafb;
    font-family: inherit;
    font-size: 0.9rem;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
    outline: none;
    border-color: var(--toc-navy);
    box-shadow: 0 0 0 3px rgba(42, 39, 105, 0.12);
}

.field .checkbox-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.field .checkbox-row input {
    width: auto;
}

.field-error {
    color: var(--toc-danger);
    font-size: 0.8rem;
    margin-top: 0.3rem;
}

.multi-checklist {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.4rem;
    border: 1px solid var(--toc-border);
    border-radius: 0.75rem;
    padding: 0.85rem;
    background: #f9fafb;
}

/* --- Buttons -------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1.1rem;
    border-radius: 0.6rem;
    font-weight: 600;
    font-size: 0.85rem;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    font-family: inherit;
}

.btn-primary {
    background: var(--toc-navy);
    color: var(--toc-white);
}

.btn-primary:hover {
    background: #211f52;
}

.btn-secondary {
    background: var(--toc-white);
    border-color: var(--toc-border);
    color: var(--toc-text);
}

.btn-danger {
    background: transparent;
    color: var(--toc-danger);
    border-color: rgba(220, 38, 38, 0.3);
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.78rem;
}

/* --- Alerts / badges --------------------------------------------------- */
.alert {
    padding: 0.85rem 1.1rem;
    border-radius: 0.75rem;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
}

.alert-success {
    background: rgba(16, 185, 129, 0.12);
    color: var(--toc-success);
}

.alert-error {
    background: rgba(220, 38, 38, 0.1);
    color: #b91c1c;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.72rem;
    font-weight: 600;
    background: rgba(42, 39, 105, 0.08);
    color: var(--toc-navy);
}

/* --- Pagination ---------------------------------------------------------- */
.pagination {
    display: flex;
    gap: 0.4rem;
    margin-top: 1.25rem;
}

.pagination a,
.pagination span {
    padding: 0.4rem 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid var(--toc-border);
    text-decoration: none;
    color: var(--toc-text);
    font-size: 0.85rem;
}

.pagination .is-current {
    background: var(--toc-navy);
    color: var(--toc-white);
    border-color: var(--toc-navy);
}

/* --- Login / public --------------------------------------------------- */
.auth-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(160deg, var(--toc-navy), #16143b);
    padding: 1.5rem;
}

.auth-card {
    background: var(--toc-white);
    border-radius: 1.5rem;
    padding: 2.5rem;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
    text-align: center;
}

.auth-card img {
    max-width: 180px;
    margin-bottom: 1.5rem;
}

.auth-card .btn-primary {
    width: 100%;
    justify-content: center;
    margin-top: 0.5rem;
}