:root {
    --admin-bg: #f8fafc;
    --admin-sidebar-bg: #0f172a;
    --admin-sidebar-hover: #1e293b;
    --admin-sidebar-active: #2563eb;
    --admin-card-bg: #ffffff;
    --admin-border: #e2e8f0;
    --admin-text-main: #0f172a;
    --admin-text-muted: #64748b;
    --admin-primary: #2563eb;
    --admin-primary-hover: #1d4ed8;
    --admin-danger: #ef4444;
    --admin-success: #10b981;
    --admin-warning: #f59e0b;
}

body {
    background-color: var(--admin-bg);
    color: var(--admin-text-main);
    font-family: 'DM Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    min-height: 100vh;
    display: flex;
}

/* Sidebar */
.admin-sidebar {
    width: 270px;
    min-height: 100vh;
    background: var(--admin-sidebar-bg);
    color: #e2e8f0;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1040;
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.admin-brand {
    padding: 24px 20px;
    font-size: 1.35rem;
    font-weight: 800;
    color: #ffffff;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.admin-brand span {
    color: #38bdf8;
    font-weight: 600;
    font-size: 0.85rem;
    background: rgba(56, 189, 248, 0.15);
    padding: 3px 8px;
    border-radius: 6px;
}

.admin-sidebar nav {
    padding: 16px 12px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.admin-sidebar nav a {
    color: #94a3b8;
    text-decoration: none;
    padding: 11px 16px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.15s ease-in-out;
}

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

.admin-sidebar nav a.active {
    color: #ffffff;
    background: var(--admin-primary);
    font-weight: 600;
}

.admin-sidebar nav a i {
    width: 20px;
    font-size: 1.1rem;
    text-align: center;
}

.sidebar-user {
    padding: 18px 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
    background: rgba(0,0,0,0.2);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sidebar-user small {
    color: #64748b;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-user strong {
    color: #f1f5f9;
    font-size: 0.95rem;
}

.sidebar-user a {
    color: #ef4444;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 4px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.sidebar-user a:hover {
    color: #f87171;
}

/* Main Area */
.admin-main {
    margin-left: 270px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: calc(100% - 270px);
}

.admin-top {
    height: 70px;
    background: #ffffff;
    border-bottom: 1px solid var(--admin-border);
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1020;
}

.sidebar-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.3rem;
    color: var(--admin-text-main);
    cursor: pointer;
}

.admin-content {
    padding: 32px;
    flex: 1;
}

/* Page Headings */
.page-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-heading h1 {
    font-size: 1.65rem;
    font-weight: 700;
    margin: 0;
    color: var(--admin-text-main);
}

.page-heading p {
    color: var(--admin-text-muted);
    margin: 4px 0 0 0;
    font-size: 0.95rem;
}

/* Panels / Cards */
.panel {
    background: var(--admin-card-bg);
    border-radius: 12px;
    border: 1px solid var(--admin-border);
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}

.panel h2 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--admin-text-main);
    border-bottom: 1px solid #f1f5f9;
    padding-bottom: 12px;
}

/* Metric Cards */
.metric-card {
    background: var(--admin-card-bg);
    border-radius: 12px;
    border: 1px solid var(--admin-border);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.metric-card i {
    font-size: 2rem;
    width: 54px;
    height: 54px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #eff6ff;
    color: var(--admin-primary);
}

.metric-card strong {
    font-size: 1.75rem;
    font-weight: 800;
    display: block;
    color: var(--admin-text-main);
    line-height: 1.2;
}

.metric-card span {
    color: var(--admin-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Media Cards */
.media-card {
    background: #ffffff;
    border: 1px solid var(--admin-border);
    border-radius: 10px;
    padding: 14px;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.media-card img {
    max-height: 140px;
    max-width: 100%;
    object-fit: contain;
    margin: 0 auto 12px auto;
    border-radius: 6px;
    background: #f8fafc;
}

.media-card .file-icon {
    font-size: 3.5rem;
    color: #ef4444;
    margin-bottom: 12px;
}

.media-card strong {
    font-size: 0.85rem;
    word-break: break-all;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Badges */
.badge-soft {
    background: #eff6ff;
    color: #2563eb;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: capitalize;
}

/* Form Controls */
.form-label {
    font-weight: 600;
    font-size: 0.88rem;
    color: #334155;
    margin-bottom: 6px;
}

.form-control, .form-select {
    border-color: #cbd5e1;
    border-radius: 8px;
    padding: 9px 14px;
    font-size: 0.95rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.btn-primary {
    background-color: var(--admin-primary);
    border-color: var(--admin-primary);
    font-weight: 600;
    border-radius: 8px;
    padding: 8px 18px;
}

.btn-primary:hover {
    background-color: var(--admin-primary-hover);
    border-color: var(--admin-primary-hover);
}

/* Login Page */
.login-body {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    margin: 0;
    width: 100%;
}

.login-card {
    background: #ffffff;
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.3), 0 8px 10px -6px rgba(0,0,0,0.3);
    text-align: center;
}

.login-card .admin-brand {
    justify-content: center;
    border-bottom: none;
    color: var(--admin-text-main);
    padding: 0;
}

.login-card h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 16px 0 6px 0;
    color: var(--admin-text-main);
}

.login-card p {
    color: var(--admin-text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.login-card .back-link {
    display: inline-block;
    margin-top: 20px;
    color: var(--admin-text-muted);
    text-decoration: none;
    font-size: 0.9rem;
}

.login-card .back-link:hover {
    color: var(--admin-primary);
}

/* Responsive */
@media (max-width: 991.98px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }
    .admin-sidebar.show {
        transform: translateX(0);
    }
    .admin-main {
        margin-left: 0;
        width: 100%;
    }
    .sidebar-toggle {
        display: block;
    }
    .admin-content {
        padding: 20px;
    }
}