:root {
    --admin-bg: #0f172a;
    --admin-bg-alt: #0b1220;
    --admin-card: #111827;
    --admin-card-hover: #1a2332;
    --admin-border: #1e293b;
    --admin-text: #e2e8f0;
    --admin-muted: #94a3b8;
    --admin-accent: #38bdf8;
    --admin-accent-hover: #0ea5e9;
    --admin-danger: #f87171;
    --admin-success: #4ade80;
    --admin-sidebar-w: 260px;
    --admin-radius: 12px;
    --admin-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
    --admin-font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

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

html {
    font-size: 16px;
}

body.admin-body {
    font-family: var(--admin-font);
    background: var(--admin-bg);
    color: var(--admin-text);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--admin-accent);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--admin-accent-hover);
}

code {
    background: var(--admin-bg-alt);
    padding: 0.15rem 0.45rem;
    border-radius: 6px;
    font-size: 0.85em;
    color: var(--admin-accent);
}

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

.admin-sidebar {
    width: var(--admin-sidebar-w);
    background: var(--admin-card);
    border-right: 1px solid var(--admin-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.sidebar-brand {
    padding: 1.5rem 1.25rem;
    border-bottom: 1px solid var(--admin-border);
}

.sidebar-brand a {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--admin-text);
}

.brand-accent {
    color: var(--admin-accent);
}

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

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    margin-bottom: 0.35rem;
    border-radius: var(--admin-radius);
    color: var(--admin-muted);
    font-size: 0.95rem;
    transition: background 0.2s, color 0.2s;
}

.nav-item i {
    width: 1.25rem;
    text-align: center;
}

.nav-item:hover:not(.disabled) {
    background: var(--admin-card-hover);
    color: var(--admin-text);
}

.nav-item.active {
    background: rgba(56, 189, 248, 0.12);
    color: var(--admin-accent);
    border: 1px solid rgba(56, 189, 248, 0.25);
}

.nav-item.disabled {
    cursor: not-allowed;
    opacity: 0.55;
    pointer-events: none;
}

.nav-badge {
    margin-left: auto;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--admin-border);
    color: var(--admin-muted);
    padding: 0.15rem 0.45rem;
    border-radius: 999px;
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--admin-border);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-link-out,
.sidebar-logout {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.75rem;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--admin-muted);
}

.sidebar-logout {
    color: var(--admin-danger);
}

.sidebar-logout:hover {
    background: rgba(248, 113, 113, 0.1);
    color: var(--admin-danger);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 999;
}

.sidebar-overlay.active {
    display: block;
}

.admin-main {
    flex: 1;
    margin-left: var(--admin-sidebar-w);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.admin-topbar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.75rem;
    background: var(--admin-card);
    border-bottom: 1px solid var(--admin-border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.sidebar-toggle {
    display: none;
    background: var(--admin-bg-alt);
    border: 1px solid var(--admin-border);
    color: var(--admin-text);
    width: 42px;
    height: 42px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1.1rem;
}

.sidebar-toggle:hover {
    border-color: var(--admin-accent);
    color: var(--admin-accent);
}

.topbar-title h1 {
    font-size: 1.35rem;
    font-weight: 600;
}

.topbar-title p {
    font-size: 0.875rem;
    color: var(--admin-muted);
}

.admin-content {
    padding: 1.75rem;
    flex: 1;
}

/* ---------- Dashboard ---------- */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.75rem;
}

.stat-card {
    background: var(--admin-card);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--admin-shadow);
    transition: transform 0.2s, border-color 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: rgba(56, 189, 248, 0.3);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-sky .stat-icon { background: rgba(56, 189, 248, 0.15); color: #38bdf8; }
.stat-violet .stat-icon { background: rgba(167, 139, 250, 0.15); color: #a78bfa; }
.stat-amber .stat-icon { background: rgba(251, 191, 36, 0.15); color: #fbbf24; }
.stat-emerald .stat-icon { background: rgba(52, 211, 153, 0.15); color: #34d399; }
.stat-rose .stat-icon { background: rgba(251, 113, 133, 0.15); color: #fb7185; }

.stat-label {
    font-size: 0.8rem;
    color: var(--admin-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.2;
}

.panel-card {
    background: var(--admin-card);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    margin-bottom: 1.25rem;
    box-shadow: var(--admin-shadow);
    overflow: hidden;
}

.panel-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--admin-border);
}

.panel-header h2 {
    font-size: 1.05rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.panel-header h2 i {
    color: var(--admin-accent);
}

.panel-body {
    padding: 1.25rem;
    color: var(--admin-muted);
}

.panel-body p {
    margin-bottom: 0.75rem;
}

.info-list {
    list-style: none;
}

.info-list li {
    padding: 0.4rem 0;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.text-accent { color: var(--admin-accent); }
.text-muted { color: var(--admin-muted); }

/* ---------- Login ---------- */
body.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: radial-gradient(ellipse at top, #1e293b 0%, var(--admin-bg) 55%);
}

.login-wrapper {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: var(--admin-card);
    border: 1px solid var(--admin-border);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--admin-shadow);
}

.login-header {
    text-align: center;
    margin-bottom: 1.75rem;
}

.login-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.login-logo span {
    color: var(--admin-accent);
}

.login-header h1 {
    font-size: 1.25rem;
    margin-bottom: 0.35rem;
}

.login-header p {
    font-size: 0.875rem;
    color: var(--admin-muted);
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: 10px;
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-error {
    background: rgba(248, 113, 113, 0.12);
    border: 1px solid rgba(248, 113, 113, 0.35);
    color: var(--admin-danger);
}

.form-group {
    margin-bottom: 1.15rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--admin-muted);
    margin-bottom: 0.4rem;
}

.input-icon {
    position: relative;
}

.input-icon i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--admin-muted);
    font-size: 0.9rem;
}

.input-icon input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    background: var(--admin-bg-alt);
    border: 1px solid var(--admin-border);
    border-radius: 10px;
    color: var(--admin-text);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.input-icon input:focus {
    outline: none;
    border-color: var(--admin-accent);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.2s, transform 0.15s;
}

.btn-primary {
    background: var(--admin-accent);
    color: #0f172a;
}

.btn-primary:hover {
    background: var(--admin-accent-hover);
    color: #0f172a;
}

.btn-block {
    width: 100%;
}

.login-footer-note {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.875rem;
}

.login-footer-note a {
    color: var(--admin-muted);
}

.login-footer-note a:hover {
    color: var(--admin-accent);
}

/* ---------- Responsive ---------- */
@media (max-width: 992px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }

    .admin-sidebar.open {
        transform: translateX(0);
    }

    .admin-main {
        margin-left: 0;
    }

    .sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    body.sidebar-open {
        overflow: hidden;
    }
}

@media (max-width: 480px) {
    .admin-content {
        padding: 1rem;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- Flash & alerts ---------- */
.alert-success {
    background: rgba(74, 222, 128, 0.12);
    border: 1px solid rgba(74, 222, 128, 0.35);
    color: var(--admin-success);
}

.alert-info {
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.35);
    color: var(--admin-accent);
}

.admin-content > .alert {
    margin-bottom: 1.25rem;
}

.error-list {
    margin: 0;
    padding-left: 1.2rem;
}

/* ---------- CRUD Portfolio ---------- */
.page-actions {
    margin-bottom: 1.25rem;
}

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

.badge-count {
    font-size: 0.8rem;
    background: var(--admin-bg-alt);
    border: 1px solid var(--admin-border);
    padding: 0.25rem 0.65rem;
    border-radius: 999px;
    color: var(--admin-muted);
}

.table-responsive {
    overflow-x: auto;
}

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

.admin-table th,
.admin-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--admin-border);
    text-align: left;
    vertical-align: middle;
}

.admin-table th {
    color: var(--admin-muted);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.table-thumb {
    width: 56px;
    height: 56px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--admin-border);
}

.table-actions {
    display: flex;
    gap: 0.4rem;
    align-items: center;
}

.inline-form {
    display: inline;
}

.btn-sm {
    padding: 0.4rem 0.65rem;
    font-size: 0.8rem;
}

.btn-secondary {
    background: var(--admin-bg-alt);
    color: var(--admin-text);
    border: 1px solid var(--admin-border);
}

.btn-secondary:hover {
    border-color: var(--admin-accent);
    color: var(--admin-accent);
}

.btn-danger {
    background: rgba(248, 113, 113, 0.15);
    color: var(--admin-danger);
    border: 1px solid rgba(248, 113, 113, 0.35);
}

.btn-danger:hover {
    background: rgba(248, 113, 113, 0.25);
}

.small {
    font-size: 0.85rem;
}

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

.form-full {
    grid-column: 1 / -1;
}

.admin-form label, label {
    display: block;
    font-size: 0.85rem;
    color: var(--admin-muted);
    margin-bottom: 0.4rem;
}

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

.hint {
    font-weight: 400;
    color: var(--admin-muted);
    font-size: 0.8rem;
}

.form-control,
.admin-form input[type="text"],
.admin-form input[type="url"],
.admin-form input[type="file"],
.admin-form input[type="number"],
.admin-form input[type="email"],
.admin-form input[type="password"],
.admin-form select,
.admin-form textarea {
    width: 100%;
    padding: 0.85rem 1.1rem;
    background: var(--admin-bg-alt);
    border: 1px solid var(--admin-border);
    border-radius: 10px;
    color: var(--admin-text);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus,
.admin-form input:focus,
.admin-form select:focus,
.admin-form textarea:focus {
    outline: none;
    border-color: var(--admin-accent);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.form-control.is-invalid {
    border-color: var(--admin-danger);
}

.admin-form textarea, .form-control[rows] {
    resize: vertical;
    min-height: 100px;
}

.image-preview-box {
    background: var(--admin-bg-alt);
    border: 1px dashed var(--admin-border);
    border-radius: 12px;
    padding: 1rem;
    min-height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-preview {
    max-width: 100%;
    max-height: 220px;
    border-radius: 8px;
    object-fit: contain;
}

.preview-placeholder {
    color: var(--admin-muted);
    font-size: 0.9rem;
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--admin-border);
}

.pagination {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--admin-border);
}

.page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 0.65rem;
    border-radius: 8px;
    border: 1px solid var(--admin-border);
    color: var(--admin-muted);
    font-size: 0.875rem;
}

.page-link:hover,
.page-link.active {
    background: rgba(56, 189, 248, 0.12);
    border-color: var(--admin-accent);
    color: var(--admin-accent);
}

@media (max-width: 768px) {
    .admin-form .form-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- Admin gallery grid ---------- */
.gallery-admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
}

.gallery-admin-card {
    background: var(--admin-bg-alt);
    border: 1px solid var(--admin-border);
    border-radius: 10px;
    overflow: hidden;
}

.gallery-admin-card img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    display: block;
}

.gallery-admin-actions {
    display: flex;
    gap: 0.35rem;
    padding: 0.5rem;
    justify-content: center;
}

/* Drag and Drop File Upload Styles */
.drag-drop-group {
    margin-bottom: 1.5rem;
}
.drop-zone {
    max-width: 100%;
    min-height: 200px;
    padding: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-family: inherit;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    color: #cccccc;
    border: 2px dashed #009578;
    border-radius: 10px;
    background: rgba(0, 149, 120, 0.05);
    transition: background 0.3s, border-color 0.3s;
    position: relative;
    overflow: hidden;
}

@media (max-width: 768px) {
    .drop-zone {
        min-height: 150px;
        padding: 15px;
    }
    .drop-zone__title {
        font-size: 1rem;
    }
    .drop-zone__icon {
        font-size: 2rem;
    }
}

.drop-zone--over {
    border-style: solid;
    background: rgba(0, 149, 120, 0.15);
}

.drop-zone__input {
    display: none;
}

.drop-zone__prompt {
    display: flex;
    flex-direction: column;
    align-items: center;
    pointer-events: none;
}

.drop-zone__icon {
    font-size: 3rem;
    color: #009578;
    margin-bottom: 10px;
}

.drop-zone__title {
    font-size: 1.1rem;
    color: var(--light);
    margin-bottom: 5px;
}

.drop-zone__subtitle {
    font-size: 0.85rem;
    color: var(--gray);
    font-weight: 400;
}

.drop-zone__thumb {
    width: 100%;
    height: 100%;
    border-radius: 10px;
    overflow: hidden;
    background-color: #cccccc;
    background-size: cover;
    background-position: center;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 10;
}

.drop-zone__thumb::after {
    content: attr(data-label);
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 5px 0;
    color: #ffffff;
    background: rgba(0, 0, 0, 0.75);
    font-size: 14px;
    text-align: center;
}