/* ── Design Tokens ── */
:root {
    /* Brand */
    --primary:        #0d9488;
    --primary-dark:   #0f766e;
    --primary-light:  #ccfbf1;
    --primary-muted:  rgba(13,148,136,.12);

    /* Sidebar (dark) */
    --sidebar-bg:     #0f172a;
    --sidebar-hover:  rgba(255,255,255,.07);
    --sidebar-active: rgba(13,148,136,.25);
    --sidebar-text:   #94a3b8;
    --sidebar-text-active: #ffffff;
    --sidebar-border: rgba(255,255,255,.08);

    /* Surface */
    --surface:        #ffffff;
    --bg:             #f1f5f9;
    --bg-subtle:      #f8fafc;

    /* Border */
    --border:         #e2e8f0;
    --border-strong:  #cbd5e1;

    /* Text */
    --text:           #0f172a;
    --text-muted:     #64748b;
    --text-subtle:    #94a3b8;

    /* Semantic */
    --success:        #059669;
    --success-bg:     #d1fae5;
    --success-text:   #065f46;
    --warning:        #d97706;
    --warning-bg:     #fef3c7;
    --warning-text:   #92400e;
    --danger:         #dc2626;
    --danger-bg:      #fee2e2;
    --danger-text:    #991b1b;
    --info:           #2563eb;
    --info-bg:        #dbeafe;
    --info-text:      #1e40af;

    /* Elevation */
    --shadow-xs:  0 1px 2px rgba(0,0,0,.05);
    --shadow-sm:  0 1px 4px rgba(0,0,0,.08);
    --shadow:     0 4px 16px rgba(0,0,0,.08);
    --shadow-md:  0 8px 24px rgba(0,0,0,.10);

    /* Shape */
    --radius-sm:  6px;
    --radius:     10px;
    --radius-lg:  14px;
    --radius-xl:  18px;

    /* Sidebar width */
    --sidebar-w:  240px;
    --topbar-h:   58px;
}

/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 13.5px;
    line-height: 1.6;
    margin-left: var(--sidebar-w);
    padding-top: var(--topbar-h);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

body.no-sidebar {
    margin-left: 0;
    padding-top: 0;
}

/* ── Sidebar ── */
.admin-sidebar {
    width: var(--sidebar-w);
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    z-index: 100;
    overflow-y: auto;
    overflow-x: hidden;
}

.admin-sidebar::-webkit-scrollbar { width: 4px; }
.admin-sidebar::-webkit-scrollbar-track { background: transparent; }
.admin-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 4px; }

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 18px;
    height: var(--topbar-h);
    font-weight: 700;
    font-size: 15px;
    color: #ffffff;
    text-decoration: none;
    letter-spacing: -.3px;
    border-bottom: 1px solid var(--sidebar-border);
    flex-shrink: 0;
}

.sidebar-brand-icon {
    width: 30px;
    height: 30px;
    background: var(--primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    flex-shrink: 0;
}

.sidebar-brand img { border-radius: var(--radius-sm); }

.sidebar-section {
    padding: 20px 10px 6px;
}

.sidebar-section-title {
    font-size: 10px;
    font-weight: 700;
    color: var(--sidebar-text);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0 10px;
    margin-bottom: 4px;
    opacity: .5;
}

.sidebar-nav {
    list-style: none;
    margin: 0; padding: 0;
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--sidebar-text);
    font-size: 13px;
    font-weight: 500;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    transition: background .15s, color .15s;
    text-decoration: none;
    margin-bottom: 1px;
}

.sidebar-nav .nav-link .nav-icon {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-size: 14px;
    background: rgba(255,255,255,.06);
    flex-shrink: 0;
    transition: background .15s;
}

.sidebar-nav .nav-link:hover {
    background: var(--sidebar-hover);
    color: #ffffff;
}

.sidebar-nav .nav-link:hover .nav-icon {
    background: rgba(255,255,255,.1);
}

.sidebar-nav .nav-link.active {
    background: var(--sidebar-active);
    color: var(--sidebar-text-active);
}

.sidebar-nav .nav-link.active .nav-icon {
    background: var(--primary);
    color: #ffffff;
}

.sidebar-footer {
    margin-top: auto;
    padding: 10px;
    border-top: 1px solid var(--sidebar-border);
    flex-shrink: 0;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background .15s;
}

.sidebar-user:hover { background: var(--sidebar-hover); }

.sidebar-user-info { flex: 1; min-width: 0; }

.sidebar-user-name {
    font-size: 12px;
    font-weight: 600;
    color: #ffffff;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-user-role {
    font-size: 11px;
    color: var(--sidebar-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ── Topbar ── */
.admin-topbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-w);
    right: 0;
    height: var(--topbar-h);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 28px;
    z-index: 99;
    gap: 8px;
}

.topbar-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
}

.topbar-divider {
    width: 1px;
    height: 18px;
    background: var(--border);
    margin: 0 4px;
}

.topbar-breadcrumb {
    font-size: 13px;
    color: var(--text-muted);
}

body.no-sidebar .admin-sidebar,
body.no-sidebar .admin-topbar { display: none; }

/* ── Page wrapper ── */
.page-wrapper {
    padding: 28px 32px 60px;
    min-width: 0;
    overflow-x: auto;
}

.page-header {
    margin-bottom: 24px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.page-header-content h4 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text);
    margin: 0 0 4px;
    letter-spacing: -.3px;
}

.page-header-content p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}

/* Legacy h4 support */
.page-header h4 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text);
    margin: 0 0 4px;
    letter-spacing: -.3px;
}

.page-header p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}

/* ── Card ── */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border);
    padding: 16px 20px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
}

.card-body { padding: 20px; }

/* ── Stat cards ── */
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-xs);
}

.stat-card-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: .5px;
    margin-bottom: 8px;
}

.stat-card-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -.5px;
    line-height: 1;
}

/* ── Tabs ── */
.nav-tabs {
    border-bottom: 2px solid var(--border);
    gap: 2px;
}

.nav-tabs .nav-link {
    border: none;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    color: var(--text-muted);
    font-size: 13.5px;
    font-weight: 500;
    padding: 9px 18px;
    transition: color .15s, background .15s;
    position: relative;
}

.nav-tabs .nav-link:hover {
    color: var(--primary);
    background: var(--primary-muted);
}

.nav-tabs .nav-link.active {
    color: var(--primary);
    background: var(--surface);
    font-weight: 700;
}

.nav-tabs .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0; right: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 2px 2px 0 0;
}

/* Tab with count badge */
.nav-tabs .nav-link .tab-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--bg);
    border-radius: 10px;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    margin-left: 6px;
}

.nav-tabs .nav-link.active .tab-count {
    background: var(--primary-muted);
    color: var(--primary-dark);
}

/* ── Table ── */
.table { font-size: 13px; margin: 0; }

.table thead th {
    background: var(--bg-subtle);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: .5px;
    border-bottom: 2px solid var(--border);
    border-top: none;
    padding: 11px 14px;
    white-space: nowrap;
}

.table td {
    padding: 11px 14px;
    border-color: var(--border);
    vertical-align: middle;
}

.table tbody tr:last-child td { border-bottom: none; }

.table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: rgba(248,250,252,.8);
}

.table-hover > tbody > tr:hover > * {
    background-color: var(--primary-muted);
}

.table-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xs);
}

/* ── Search / Filter bar ── */
.search-bar {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-xs);
}

/* ── Badges ── */
.status-badge {
    display: inline-flex;
    align-items: center;
    font-size: 11.5px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
    white-space: nowrap;
}

.badge-success { background: var(--success-bg); color: var(--success-text); }
.badge-warning { background: var(--warning-bg); color: var(--warning-text); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger-text); }
.badge-info    { background: var(--info-bg);    color: var(--info-text); }
.badge-neutral { background: var(--bg); color: var(--text-muted); border: 1px solid var(--border); }

/* ── Buttons ── */
.btn {
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    border-radius: var(--radius-sm);
    font-size: 13px;
    transition: all .15s;
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.btn-primary:hover, .btn-primary:focus {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
}

.btn-outline-primary {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-outline-primary:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

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

.btn-secondary:hover {
    background: var(--border);
    border-color: var(--border-strong);
    color: var(--text);
}

.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-xs { padding: 3px 8px; font-size: 11.5px; }

.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

/* ── Pagination ── */
.pagination {
    gap: 3px;
}

.pagination .page-link {
    font-size: 13px;
    border-color: var(--border);
    color: var(--text-muted);
    border-radius: var(--radius-sm) !important;
    padding: 6px 12px;
    font-weight: 500;
    transition: all .15s;
}

.pagination .page-item.active .page-link {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.pagination .page-link:hover {
    background: var(--primary-muted);
    border-color: var(--primary);
    color: var(--primary);
}

/* ── Form controls ── */
.form-control, .form-select {
    border-color: var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: 'Inter', sans-serif;
    color: var(--text);
    background: var(--surface);
    transition: border-color .15s, box-shadow .15s;
}

.form-control::placeholder { color: var(--text-subtle); }

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(13,148,136,.12);
    outline: none;
}

.form-label {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 5px;
}

/* ── Input group ── */
.input-group .form-control:focus { z-index: 3; }

.input-group-text {
    background: var(--bg);
    border-color: var(--border);
    color: var(--text-muted);
    font-size: 13px;
}

/* ── Login form ── */
.form-signin {
    width: 100%;
    max-width: 420px;
    margin: auto;
}

.form-signin input[type="email"] {
    margin-bottom: -1px;
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
}

.form-signin input[type="password"] {
    margin-bottom: 10px;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}

/* ── Image zoom ── */
.img-zoom {
    transition: transform .25s ease, z-index 0s;
    cursor: zoom-in;
    position: relative;
    z-index: 1;
}

.img-zoom:hover {
    transform: scale(2.8);
    z-index: 50;
    position: relative;
}

/* ── Info box ── */
.info-box {
    background: var(--primary-muted);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-sm);
    padding: 11px 14px;
    font-size: 12.5px;
    color: var(--text);
    margin-bottom: 16px;
}

.info-box p { margin: 0; line-height: 1.8; }

/* ── Misc ── */
.disabled { pointer-events: none; opacity: 0.5; }

.text-primary { color: var(--primary) !important; }
.bg-primary   { background: var(--primary) !important; }

.divider {
    height: 1px;
    background: var(--border);
    margin: 16px 0;
}

/* ── Dropdown ── */
.dropdown-menu {
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    border-radius: var(--radius);
    padding: 6px;
    font-size: 13px;
}

.dropdown-item {
    border-radius: var(--radius-sm);
    padding: 7px 12px;
    font-size: 13px;
    color: var(--text);
    transition: background .12s;
}

.dropdown-item:hover { background: var(--bg); }
.dropdown-item.text-danger:hover { background: var(--danger-bg); }

/* ── Modal ── */
.modal-content {
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.modal-header {
    border-bottom: 1px solid var(--border);
    padding: 18px 24px;
}

.modal-title {
    font-size: 16px;
    font-weight: 700;
}

.modal-body { padding: 24px; }

.modal-footer {
    border-top: 1px solid var(--border);
    padding: 14px 24px;
}

/* ── Alert ── */
.alert {
    border-radius: var(--radius);
    font-size: 13.5px;
    border: none;
}

.alert-warning {
    background: var(--warning-bg);
    color: var(--warning-text);
}

.alert-danger {
    background: var(--danger-bg);
    color: var(--danger-text);
}

.alert-success {
    background: var(--success-bg);
    color: var(--success-text);
}

/* ── Toggle switch ── */
.form-check-input:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.form-check-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(13,148,136,.15);
}

/* ── Footer ── */
.admin-footer {
    text-align: center;
    font-size: 12px;
    color: var(--text-subtle);
    padding: 24px 0 12px;
    border-top: 1px solid var(--border);
    margin-top: 40px;
}

/* ── Scrollbar (content area) ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-subtle); }