/* ===========================================================================
   Grace International School - administrator portal
   ---------------------------------------------------------------------------
   The one stylesheet for every admin page. The public pages each carry their
   own 400-600 line inline <style> block; the portal deliberately does not
   repeat that mistake.

   Tokens are lifted from index.php's :root so the portal reads as part of the
   same site, with a few additions the public pages had no need for (borders,
   muted text, status colours).
   =========================================================================== */

:root {
    /* --- shared with index.php --- */
    --space-1: 0.5rem;
    --space-2: 1rem;
    --space-3: 1.5rem;
    --space-4: 2rem;
    --space-5: 3rem;

    --color-ink: #333;
    --color-surface: #fff;
    --color-dark: #333;
    --radius: 5px;
    --content-width: 1200px;
    --header-logo-height: 64px;
    --transition: 0.3s ease-out;

    /* --- admin-only additions --- */
    --color-muted: #666;
    --color-border: #ddd;
    --color-page: #f4f5f7;
    --color-success-bg: #e7f5ec;
    --color-success-ink: #1c6b3a;
    --color-error-bg: #fdecec;
    --color-error-ink: #a32020;
    --color-danger: #a32020;
}

/* ---------- Reset ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-ink);
    /* Flat colour rather than the public pages' photographic background:
       admins are reading tables and filling in forms. */
    background-color: var(--color-page);
    padding: var(--space-3);
}

img {
    max-width: 100%;
}

.container {
    width: min(96%, var(--content-width));
    margin-inline: auto;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--color-dark);
    color: #fff;
    padding: var(--space-1) var(--space-2);
    z-index: 100;
}

.skip-link:focus {
    left: var(--space-2);
}

/* ---------- Header ---------- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) 0;
    border-bottom: 2px solid #000;
}

.logo img {
    height: var(--header-logo-height);
    width: auto;
    display: block;
}

.admin-identity {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.9rem;
    color: var(--color-muted);
    flex-wrap: wrap;
}

.admin-identity a {
    color: var(--color-ink);
    text-decoration: none;
    padding: var(--space-1) var(--space-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    transition: background-color var(--transition), color var(--transition);
}

.admin-identity a:hover,
.admin-identity a:focus-visible {
    background: #000;
    color: #fff;
}

/* ---------- Layout ----------
   Class names match the ones already used in admin.php so the markup stays
   familiar, but the old rule set had `padding: 150px` on .admin-container,
   which squeezed the content column down to a sliver on anything but a very
   wide screen. */
.admin-container {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: var(--space-4);
    align-items: start;
    margin-block: var(--space-4);
}

.admin-navigation ul {
    list-style: none;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}

.admin-navigation li + li {
    border-top: 1px solid var(--color-border);
}

.admin-navigation a {
    display: block;
    padding: var(--space-2);
    color: var(--color-ink);
    text-decoration: none;
    transition: background-color var(--transition), color var(--transition);
}

.admin-navigation a:hover,
.admin-navigation a:focus-visible {
    background: #000;
    color: #fff;
}

.admin-navigation a.is-active {
    background: #000;
    color: #fff;
    font-weight: bold;
}

.admin-content {
    min-width: 0; /* lets wide tables scroll instead of blowing out the grid */
}

.admin-content > h1 {
    font-size: 1.5rem;
    margin-bottom: var(--space-3);
}

.panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-3);
    margin-bottom: var(--space-4);
}

.panel > h2 {
    font-size: 1.15rem;
    margin-bottom: var(--space-2);
}

.panel-hint {
    color: var(--color-muted);
    font-size: 0.9rem;
    margin-bottom: var(--space-2);
}

/* ---------- Flash messages ---------- */
.flash {
    padding: var(--space-2);
    border-radius: var(--radius);
    margin-bottom: var(--space-3);
    border: 1px solid transparent;
}

.flash--success {
    background: var(--color-success-bg);
    color: var(--color-success-ink);
    border-color: var(--color-success-ink);
}

.flash--error {
    background: var(--color-error-bg);
    color: var(--color-error-ink);
    border-color: var(--color-error-ink);
}

/* ---------- Forms ---------- */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-3);
}

.form-group {
    margin-bottom: var(--space-2);
    min-width: 0;
}

.form-group--wide {
    grid-column: 1 / -1;
}

.form-group label {
    display: block;
    font-weight: bold;
    margin-bottom: var(--space-1);
    font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="date"],
.form-group input[type="password"],
.form-group input[type="file"],
.form-group select,
.form-group textarea {
    /* The old rules set a fixed width: 250px on every input, which broke the
       layout at both ends of the scale. */
    width: 100%;
    padding: 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font: inherit;
    background: var(--color-surface);
    color: var(--color-ink);
}

.form-group input:focus-visible,
.form-group select:focus-visible {
    outline: 2px solid #000;
    outline-offset: 1px;
}

.field-hint {
    display: block;
    font-size: 0.8rem;
    color: var(--color-muted);
    font-weight: normal;
    margin-top: var(--space-1);
}

.required-marker {
    color: var(--color-danger);
}

.form-actions {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border);
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    background-color: #333;
    color: #fff;
    padding: 10px var(--space-3);
    border: 1px solid #333;
    border-radius: var(--radius);
    cursor: pointer;
    font: inherit;
    text-decoration: none;
    text-align: center;
    transition: background-color var(--transition);
}

.btn:hover,
.btn:focus-visible {
    background-color: #555;
}

.btn--secondary {
    background-color: var(--color-surface);
    color: var(--color-ink);
    border-color: var(--color-border);
}

.btn--secondary:hover,
.btn--secondary:focus-visible {
    background-color: #eee;
}

.btn--danger {
    background-color: var(--color-danger);
    border-color: var(--color-danger);
}

.btn--danger:hover,
.btn--danger:focus-visible {
    background-color: #8a1a1a;
}

.btn--small {
    padding: 6px 12px;
    font-size: 0.85rem;
}

/* ---------- Tables ---------- */
.table-scroll {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th,
.data-table td {
    text-align: left;
    padding: var(--space-1) var(--space-2);
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

.data-table th {
    background: #f0f0f0;
    white-space: nowrap;
}

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

.data-table .col-actions {
    white-space: nowrap;
    width: 1%;
}

.data-table .row-actions {
    display: flex;
    gap: var(--space-1);
}

/* Inline delete forms must not introduce layout of their own. */
.data-table .row-actions form {
    display: inline;
}

.thumb {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    display: block;
    background: #eee;
}

.empty-state {
    color: var(--color-muted);
    padding: var(--space-3);
    text-align: center;
}

.muted {
    color: var(--color-muted);
}

.nowrap {
    white-space: nowrap;
}

/* ---------- Dashboard tiles ---------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-3);
}

.stat-tile {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-3);
    text-decoration: none;
    color: var(--color-ink);
    display: block;
    transition: border-color var(--transition), transform var(--transition);
}

.stat-tile:hover,
.stat-tile:focus-visible {
    border-color: #000;
}

.stat-tile .stat-value {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    line-height: 1.2;
}

.stat-tile .stat-label {
    display: block;
    color: var(--color-muted);
    font-size: 0.9rem;
}

/* ---------- Login ---------- */
.login-shell {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4) 0;
}

.login-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-4);
    width: min(100%, 380px);
}

.login-card h1 {
    font-size: 1.3rem;
    margin-bottom: var(--space-3);
    text-align: center;
}

.login-card .btn {
    width: 100%;
}

/* ---------- Footer ---------- */
footer {
    text-align: center;
    padding: var(--space-2);
    background: var(--color-dark);
    color: #fff;
    border-radius: var(--radius);
}

footer a {
    color: #fff;
    text-decoration: none;
}

footer a:hover,
footer a:focus-visible {
    text-decoration: underline;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    body {
        padding: var(--space-2);
    }

    header {
        flex-wrap: wrap;
    }

    /* Sidebar becomes a stacked block above the content. */
    .admin-container {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
    }
}