/* Modern Admin Dashboard Stylesheet */
:root {
    --primary: #4a89dc;
    --primary-dark: #357bd8;
    --sidebar-bg: #1e293b;
    --sidebar-active: #0f172a;
    --body-bg: #f1f5f9;
    --card-bg: #ffffff;
    --text-dark: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --danger: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--body-bg);
    color: var(--text-dark);
    font-size: 14px;
    line-height: 1.5;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

/* Sidebar */
.admin-sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    color: #cbd5e1;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.sidebar-brand {
    padding: 22px 20px;
    font-size: 18px;
    font-weight: 700;
    color: #ffffff;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-brand i {
    color: var(--primary);
    font-size: 22px;
}

.sidebar-menu {
    list-style: none;
    padding: 15px 0;
    margin: 0;
    flex-grow: 1;
    overflow-y: auto;
}

.sidebar-menu li.menu-header {
    padding: 12px 20px 6px 20px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #64748b;
    font-weight: 700;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 20px;
    color: #94a3b8;
    font-weight: 500;
    transition: all 0.2s;
}

.sidebar-menu li a:hover,
.sidebar-menu li.active a {
    background-color: rgba(255,255,255,0.06);
    color: #ffffff;
    text-decoration: none;
    border-left: 3px solid var(--primary);
}

.sidebar-menu li a i {
    width: 20px;
    text-align: center;
    font-size: 15px;
}

.badge-count {
    margin-left: auto;
    background: var(--primary);
    color: #fff;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: bold;
}

/* Main Content Area */
.admin-main {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.admin-topbar {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    padding: 14px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.topbar-left {
    font-size: 16px;
    font-weight: 600;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 18px;
}

.admin-body {
    padding: 28px;
    flex-grow: 1;
}

/* Cards & Layout */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    margin-bottom: 25px;
}

.card-header {
    padding: 16px 22px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-body {
    padding: 22px;
}

/* Stat Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: #ffffff;
}

.stat-details h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-dark);
}

.stat-details p {
    font-size: 13px;
    color: var(--text-muted);
}

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

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.table th, .table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
}

.table th {
    background: #f8fafc;
    font-weight: 600;
    color: #475569;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table tbody tr:hover {
    background: #f8fafc;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-success { background: #dcfce7; color: #15803d; }
.badge-warning { background: #fef3c7; color: #b45309; }
.badge-danger  { background: #fee2e2; color: #b91c1c; }
.badge-info    { background: #e0f2fe; color: #0369a1; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    text-decoration: none !important;
    transition: all 0.2s;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #64748b; color: #fff; }
.btn-secondary:hover { background: #475569; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; }
.btn-sm { padding: 5px 10px; font-size: 12px; }

/* Forms */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #334155;
    font-size: 13px;
}

.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 14px;
    color: #1e293b;
    background: #fff;
    box-sizing: border-box;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74, 137, 220, 0.2);
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

.alert {
    padding: 12px 18px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 14px;
}
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.alert-danger  { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }

@media (max-width: 900px) {
    .admin-wrapper {
        flex-direction: column;
    }
    .admin-sidebar {
        width: 100%;
    }
}