/* ============================================================
   KHALED STAITIA ART FOUNDATION — Admin Panel
   Self-contained (no dependency on main.css)
   ============================================================ */

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

:root {
    --c-charcoal:   #1A1A1A;
    --c-white:      #FFFFFF;
    --c-gold:       #C6A15B;
    --c-gold-dark:  #A8894A;
    --c-stone:      #D8D0C8;
    --c-sand:       #E7DCCB;

    --bg-body:    #F5F2EE;
    --bg-sidebar: #1A1A1A;
    --bg-card:    #FFFFFF;
    --bg-topbar:  #FFFFFF;
    --bg-alt:     #FAFAF8;

    --text-primary:        #1A1A1A;
    --text-secondary:      #4A4540;
    --text-muted:          #9E9790;
    --text-sidebar:        #C8C2BB;
    --text-sidebar-active: #F0ECE6;

    --border:       #E8E4DE;
    --border-light: #F0EDE8;

    --success:    #2A7A56;
    --success-bg: #F0FAF5;
    --danger:     #B03A28;
    --danger-bg:  #FEF5F3;
    --warning:    #A06B2C;
    --warning-bg: #FDF8EE;
    --info:       #1B5F8A;
    --info-bg:    #EEF5FB;

    --sidebar-width: 240px;
    --topbar-height: 56px;
    --radius:    6px;
    --radius-lg: 10px;
    --shadow:    0 1px 4px rgba(0,0,0,.07), 0 4px 16px rgba(0,0,0,.04);
    --shadow-md: 0 2px 8px rgba(0,0,0,.10), 0 8px 24px rgba(0,0,0,.06);
    --transition: 0.18s ease;

    --font-sans:  'Inter', system-ui, -apple-system, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
}

html { font-size: 16px; }
body {
    font-family: var(--font-sans);
    font-size: .9375rem;
    line-height: 1.55;
    color: var(--text-primary);
    background: var(--bg-body);
    -webkit-font-smoothing: antialiased;
}
a { color: var(--c-gold-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { font-family: var(--font-sans); }

/* ── Layout ───────────────────────────────────────────────── */
.admin-wrap { display: flex; min-height: 100vh; }

/* ── Sidebar ──────────────────────────────────────────────── */
.admin-sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background: var(--bg-sidebar);
    position: fixed;
    inset: 0 auto 0 0;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    z-index: 200;
    transition: transform var(--transition);
}
.admin-sidebar::-webkit-scrollbar { width: 4px; }
.admin-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 2px; }

.admin-logo {
    display: flex;
    align-items: center;
    gap: .75rem;
    padding: 1.125rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,.08);
    flex-shrink: 0;
    text-decoration: none;
}
.admin-logo:hover { text-decoration: none; }
.admin-logo-mark {
    width: 32px; height: 32px;
    background: var(--c-gold);
    border-radius: 5px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    font-family: var(--font-serif);
    font-size: 1rem;
    font-weight: 600;
    color: #1A1A1A;
}
.admin-logo-text { flex: 1; min-width: 0; }
.admin-logo-name {
    font-size: .775rem;
    font-weight: 600;
    color: #F0ECE6;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.admin-logo-sub {
    font-size: .65rem;
    color: rgba(240,236,230,.35);
    text-transform: uppercase;
    letter-spacing: .07em;
}

.admin-nav { flex: 1; padding: .625rem 0; }
.admin-nav-group {
    padding: .875rem 1rem .3rem;
    font-size: .665rem;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: rgba(240,236,230,.3);
    font-weight: 600;
}
.admin-nav-link {
    display: flex;
    align-items: center;
    gap: .625rem;
    padding: .5rem .875rem .5rem 1rem;
    color: var(--text-sidebar);
    font-size: .855rem;
    border-left: 3px solid transparent;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    cursor: pointer;
    line-height: 1.4;
}
.admin-nav-link:hover {
    color: var(--text-sidebar-active);
    background: rgba(255,255,255,.05);
    text-decoration: none;
}
.admin-nav-link.is-active {
    color: var(--text-sidebar-active);
    background: rgba(198,161,91,.1);
    border-left-color: var(--c-gold);
}
.admin-nav-link svg { width: 16px; height: 16px; flex-shrink: 0; opacity: .65; }
.admin-nav-link.is-active svg,
.admin-nav-link:hover svg { opacity: 1; }
.badge-count {
    margin-left: auto;
    background: var(--c-gold);
    color: #1A1A1A;
    font-size: .65rem;
    font-weight: 700;
    padding: .1rem .45rem;
    border-radius: 99px;
    line-height: 1.5;
}

.admin-sidebar-footer {
    padding: .875rem 1rem;
    border-top: 1px solid rgba(255,255,255,.08);
    flex-shrink: 0;
}
.admin-sidebar-user {
    display: flex; align-items: center; gap: .625rem;
    font-size: .78rem; color: rgba(240,236,230,.55);
    margin-bottom: .5rem;
    line-height: 1.35;
}
.admin-sidebar-user strong { display: block; color: rgba(240,236,230,.85); font-weight: 500; }

/* ── Main content ─────────────────────────────────────────── */
.admin-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-width: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.admin-topbar {
    height: var(--topbar-height);
    background: var(--bg-topbar);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    gap: 1rem;
}
.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    padding: .375rem;
    border-radius: var(--radius);
    transition: background var(--transition);
    line-height: 0;
}
.sidebar-toggle:hover { background: var(--bg-body); }
.sidebar-toggle svg { width: 20px; height: 20px; display: block; }

.topbar-breadcrumbs {
    display: flex; align-items: center; gap: .375rem;
    font-size: .8rem; color: var(--text-muted); flex: 1;
}
.topbar-breadcrumbs a { color: var(--text-muted); }
.topbar-breadcrumbs a:hover { color: var(--text-primary); text-decoration: none; }
.topbar-breadcrumbs .sep { color: var(--border); margin: 0 .1rem; }
.topbar-breadcrumbs .current { color: var(--text-secondary); font-weight: 500; }

.topbar-right { display: flex; align-items: center; gap: .75rem; flex-shrink: 0; }
.topbar-user { font-size: .8125rem; color: var(--text-secondary); font-weight: 500; }

.admin-content {
    flex: 1;
    padding: 1.875rem 1.5rem;
}

/* ── Page header ──────────────────────────────────────────── */
.admin-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.75rem;
}
.admin-page-header h1 {
    font-family: var(--font-serif);
    font-size: 1.55rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}
.admin-page-actions { display: flex; gap: .625rem; }

/* ── Stat cards ───────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.75rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.25rem 1.125rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--c-stone);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.stat-card.is-gold::before    { background: var(--c-gold); }
.stat-card.is-success::before { background: var(--success); }
.stat-card.is-danger::before  { background: var(--danger); }
.stat-card.is-info::before    { background: var(--info); }

.stat-icon {
    width: 36px; height: 36px;
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: .875rem;
    background: var(--bg-body);
}
.stat-icon svg { width: 17px; height: 17px; }
.stat-card.is-gold .stat-icon    { background: rgba(198,161,91,.12); color: var(--c-gold-dark); }
.stat-card.is-success .stat-icon { background: var(--success-bg); color: var(--success); }
.stat-card.is-danger .stat-icon  { background: var(--danger-bg);  color: var(--danger); }
.stat-card.is-info .stat-icon    { background: var(--info-bg);    color: var(--info); }

.stat-value {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: .3rem;
}
.stat-label {
    font-size: .8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ── Cards / Panels ───────────────────────────────────────── */
.admin-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.admin-card-header {
    padding: .9375rem 1.25rem;
    border-bottom: 1px solid var(--border-light);
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem;
}
.admin-card-header h2,
.admin-card-header h3 {
    font-size: .9375rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-primary);
}
.admin-card-body { padding: 1.25rem; }
.admin-card-footer {
    padding: .75rem 1.25rem;
    border-top: 1px solid var(--border-light);
    background: var(--bg-alt);
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}

.chart-container { padding: 1rem 1.25rem .625rem; }

.admin-cols-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.admin-cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }

/* ── Tables ───────────────────────────────────────────────── */
.table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .875rem;
}
.admin-table th,
.admin-table td {
    padding: .75rem 1.125rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}
.admin-table th {
    font-size: .725rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--text-muted);
    background: var(--bg-alt);
    white-space: nowrap;
}
.admin-table td { color: var(--text-secondary); vertical-align: middle; }
.admin-table td.wrap { white-space: normal; max-width: 340px; }
.admin-table tbody tr:last-child td { border-bottom: none; }
.admin-table tbody tr:hover { background: var(--bg-body); }
.table-thumb {
    width: 40px; height: 52px;
    object-fit: cover;
    border-radius: 3px;
    background: var(--bg-body);
    display: block;
}
.table-title { font-weight: 500; color: var(--text-primary); white-space: nowrap; }
.table-title small { display: block; font-weight: 400; color: var(--text-muted); font-size: .775rem; }
.table-actions { display: flex; align-items: center; gap: .3rem; white-space: nowrap; }
.table-empty { text-align: center; padding: 2.5rem 1rem; color: var(--text-muted); font-size: .875rem; }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: .375rem;
    padding: .5rem 1rem;
    font-size: .875rem;
    font-weight: 500;
    font-family: var(--font-sans);
    border: 1px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition),
                color var(--transition), box-shadow var(--transition);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.4;
    -webkit-user-select: none;
    user-select: none;
}
.btn:hover { text-decoration: none; }
.btn:focus-visible { outline: 2px solid var(--c-gold); outline-offset: 2px; }
.btn svg { width: 15px; height: 15px; flex-shrink: 0; }
.btn[disabled], .btn.is-loading { opacity: .55; cursor: not-allowed; pointer-events: none; }

.btn-primary { background: var(--c-gold); color: #1A1A1A; border-color: var(--c-gold); }
.btn-primary:hover { background: var(--c-gold-dark); border-color: var(--c-gold-dark); color: #1A1A1A; }

.btn-outline { background: transparent; color: var(--text-secondary); border-color: var(--border); }
.btn-outline:hover { background: var(--bg-body); color: var(--text-primary); }

.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger:hover { background: #8E2E1F; border-color: #8E2E1F; color: #fff; }

.btn-outline-danger { background: transparent; color: var(--danger); border-color: var(--danger); }
.btn-outline-danger:hover { background: var(--danger-bg); }

.btn-ghost { background: transparent; border-color: transparent; color: var(--text-muted); }
.btn-ghost:hover { background: var(--bg-body); color: var(--text-primary); }

.btn-sm { padding: .3rem .7rem; font-size: .8rem; }
.btn-lg { padding: .75rem 1.5rem; font-size: 1rem; }
.btn-icon { padding: .4375rem; }

/* ── Badges ───────────────────────────────────────────────── */
.badge {
    display: inline-flex; align-items: center;
    padding: .175rem .55rem;
    font-size: .715rem;
    font-weight: 600;
    border-radius: 99px;
    line-height: 1.5;
    white-space: nowrap;
    background: var(--bg-body);
    color: var(--text-muted);
    border: 1px solid var(--border);
}
.badge-success { background: var(--success-bg); color: var(--success); border-color: rgba(42,122,86,.2); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger);  border-color: rgba(176,58,40,.2); }
.badge-warning { background: var(--warning-bg); color: var(--warning); border-color: rgba(160,107,44,.2); }
.badge-info    { background: var(--info-bg);    color: var(--info);    border-color: rgba(27,95,138,.2); }
.badge-gold    { background: rgba(198,161,91,.1); color: var(--c-gold-dark); border-color: rgba(198,161,91,.25); }

/* ── Forms ────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.125rem; }
.form-group label {
    display: block;
    font-size: .8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: .35rem;
}
.form-group label .req { color: var(--danger); margin-left: .15rem; }
.form-hint { font-size: .775rem; color: var(--text-muted); margin-top: .25rem; }

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="url"],
input[type="date"],
input[type="datetime-local"],
input[type="time"],
input[type="search"],
select,
textarea {
    display: block; width: 100%;
    padding: .5rem .75rem;
    font-size: .875rem; font-family: var(--font-sans);
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    line-height: 1.5;
    transition: border-color var(--transition), box-shadow var(--transition);
    -webkit-appearance: none; appearance: none;
}
input::placeholder, textarea::placeholder { color: var(--text-muted); }
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--c-gold);
    box-shadow: 0 0 0 3px rgba(198,161,91,.14);
}
input.is-invalid, select.is-invalid, textarea.is-invalid { border-color: var(--danger); }
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%239E9790' d='M0 0l5 6 5-6z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right .75rem center;
    padding-right: 2.25rem;
}
textarea { resize: vertical; min-height: 110px; }
input[type="file"] { padding: .375rem; }
input[type="checkbox"], input[type="radio"] { width: auto; display: inline; }

.form-row   { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }

.checkbox-label {
    display: flex; align-items: flex-start; gap: .5rem;
    font-size: .875rem; cursor: pointer; font-weight: 400;
    color: var(--text-secondary);
}
.checkbox-label input { margin-top: .19rem; flex-shrink: 0; }

/* ── Alerts ───────────────────────────────────────────────── */
.alert {
    padding: .875rem 1rem;
    border-radius: var(--radius);
    font-size: .875rem;
    border: 1px solid var(--border);
    background: var(--bg-alt);
    color: var(--text-secondary);
    line-height: 1.5;
}
.alert-success { background: var(--success-bg); border-color: rgba(42,122,86,.25); color: var(--success); }
.alert-error   { background: var(--danger-bg);  border-color: rgba(176,58,40,.25);  color: var(--danger); }
.alert-warning { background: var(--warning-bg); border-color: rgba(160,107,44,.25); color: var(--warning); }
.alert-info    { background: var(--info-bg);    border-color: rgba(27,95,138,.25);   color: var(--info); }

/* ── Upload zone ──────────────────────────────────────────── */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
    background: var(--bg-alt);
}
.upload-zone:hover,
.upload-zone.is-dragging { border-color: var(--c-gold); background: rgba(198,161,91,.04); }
.upload-zone-icon { margin: 0 auto .75rem; width: 38px; height: 38px; color: var(--text-muted); }
.upload-zone-icon svg { width: 100%; height: 100%; }
.upload-zone p { font-size: .875rem; color: var(--text-muted); margin: 0; }
.upload-zone strong { color: var(--text-secondary); }

.upload-previews {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: .75rem; margin-top: 1rem;
}
.upload-preview-item {
    position: relative; aspect-ratio: 4/5;
    border-radius: var(--radius); overflow: hidden;
    background: var(--bg-body); border: 1px solid var(--border);
}
.upload-preview-item img { width: 100%; height: 100%; object-fit: cover; }
.upload-preview-remove {
    position: absolute; top: 4px; right: 4px;
    background: rgba(0,0,0,.65); color: #fff;
    border: none; border-radius: 50%;
    width: 22px; height: 22px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: .8rem; line-height: 1; padding: 0;
}
.upload-preview-badge {
    display: none;
    position: absolute; bottom: 4px; left: 4px;
    background: var(--c-gold); color: #1A1A1A;
    font-size: .63rem; font-weight: 700;
    padding: .1rem .35rem; border-radius: 3px;
    text-transform: uppercase; letter-spacing: .04em;
}
.upload-preview-item.is-primary .upload-preview-badge { display: block; }

/* ── Pagination ───────────────────────────────────────────── */
.pagination {
    display: flex; align-items: center; gap: .25rem;
    padding: .875rem 1.25rem;
    border-top: 1px solid var(--border-light);
}
.pagination a, .pagination span {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 32px; height: 32px; padding: 0 .5rem;
    border-radius: var(--radius); font-size: .8rem;
    color: var(--text-secondary); border: 1px solid transparent;
    transition: background var(--transition);
}
.pagination a:hover { background: var(--bg-body); text-decoration: none; }
.pagination .is-active {
    background: var(--c-gold); color: #1A1A1A;
    font-weight: 600; border-color: var(--c-gold);
}
.pagination-info { font-size: .8rem; color: var(--text-muted); margin-left: auto; }

/* ── Modal ────────────────────────────────────────────────── */
.admin-modal {
    position: fixed; inset: 0;
    background: rgba(0,0,0,.45);
    z-index: 500;
    display: flex; align-items: center; justify-content: center;
    padding: 1rem;
    opacity: 0; pointer-events: none;
    transition: opacity var(--transition);
}
.admin-modal.is-open { opacity: 1; pointer-events: all; }
.admin-modal-box {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    width: 100%; max-width: 500px;
    max-height: 90vh; overflow-y: auto;
    transform: translateY(10px);
    transition: transform var(--transition);
}
.admin-modal.is-open .admin-modal-box { transform: translateY(0); }
.admin-modal-header {
    padding: 1.125rem 1.25rem;
    border-bottom: 1px solid var(--border-light);
    display: flex; align-items: center; justify-content: space-between;
}
.admin-modal-header h3 { font-size: 1rem; font-weight: 600; margin: 0; }
.admin-modal-close {
    background: none; border: none; cursor: pointer;
    color: var(--text-muted); padding: .25rem;
    border-radius: 4px; line-height: 0;
    transition: background var(--transition);
}
.admin-modal-close:hover { background: var(--bg-body); color: var(--text-primary); }
.admin-modal-close svg { width: 18px; height: 18px; }
.admin-modal-body { padding: 1.25rem; }
.admin-modal-footer {
    padding: .875rem 1.25rem;
    border-top: 1px solid var(--border-light);
    display: flex; align-items: center; justify-content: flex-end; gap: .625rem;
    background: var(--bg-alt);
}

/* ── Login page ───────────────────────────────────────────── */
.admin-login-page {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-body);
    padding: 2rem 1rem;
}
.admin-login-wrap { width: 100%; max-width: 390px; }
.admin-login-logo { text-align: center; margin-bottom: 1.875rem; }
.admin-login-logo-mark {
    width: 50px; height: 50px;
    background: var(--c-charcoal);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto .875rem;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--c-gold);
}
.admin-login-logo h1 {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    color: var(--text-primary);
    margin: 0 0 .2rem;
}
.admin-login-logo p {
    font-size: .73rem; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: .09em; margin: 0;
}
.admin-login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
}
.admin-login-card h2 { font-size: 1.05rem; font-weight: 600; margin: 0 0 1.375rem; }
.admin-login-back {
    text-align: center; margin-top: 1.25rem;
    font-size: .825rem; color: var(--text-muted);
}

/* ── 403 page ─────────────────────────────────────────────── */
.admin-error-page {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-body); padding: 2rem;
}
.admin-error-inner {
    text-align: center; max-width: 440px;
}
.admin-error-code {
    font-size: 5rem; font-weight: 700; line-height: 1;
    color: var(--c-gold); font-family: var(--font-serif);
    margin-bottom: .5rem;
}
.admin-error-inner h1 { font-size: 1.5rem; margin-bottom: .75rem; }
.admin-error-inner p { color: var(--text-muted); margin-bottom: 1.5rem; }

/* ── Utility ──────────────────────────────────────────────── */
.text-muted    { color: var(--text-muted) !important; }
.text-sm       { font-size: .825rem; }
.text-center   { text-align: center; }
.text-right    { text-align: right; }
.mt-1  { margin-top: .25rem; }
.mt-2  { margin-top: .5rem; }
.mt-4  { margin-top: 1rem; }
.mt-6  { margin-top: 1.5rem; }
.mb-4  { margin-bottom: 1rem; }
.mb-6  { margin-bottom: 1.5rem; }
.gap-2 { gap: .5rem; }
.gap-3 { gap: .75rem; }
.gap-4 { gap: 1rem; }
.hidden { display: none !important; }
.visually-hidden {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 1200px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .admin-cols-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
    .admin-cols-2,
    .admin-cols-3 { grid-template-columns: 1fr; }
    .form-row, .form-row-3 { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .stats-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 460px) {
    .stats-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .admin-sidebar { transform: translateX(-100%); }
    .admin-sidebar.is-open { transform: translateX(0); box-shadow: 4px 0 24px rgba(0,0,0,.25); }
    .admin-main { margin-left: 0; }
    .sidebar-toggle { display: flex; }
    .admin-content { padding: 1.25rem 1rem; }
    .topbar-user { display: none; }
}

.admin-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,.35);
    z-index: 190;
}
.admin-overlay.is-open { display: block; }