/* ===== ADMIN PANEL - PROFESSIONAL DARK THEME ===== */
:root {
    --primary: #5B2DA8;
    --primary-dark: #4A2590;
    --primary-light: #8B5CF6;
    --primary-50: #F5F3FF;
    --green: #10B981;
    --green-dark: #059669;
    --gold: #F59E0B;
    --red: #EF4444;
    --blue: #3B82F6;
    --sidebar-bg: #1E1B2E;
    --sidebar-hover: #2D2844;
    --body-bg: #F8F9FC;
    --card-bg: #FFFFFF;
    --text-dark: #111827;
    --text-gray: #6B7280;
    --text-light: #9CA3AF;
    --border: #E5E7EB;
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.2s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--body-bg);
    color: var(--text-dark);
    min-height: 100vh;
    display: flex;
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    overflow-y: auto;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-header .logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 800;
    color: white;
}

.sidebar-header h2 {
    color: white;
    font-size: 18px;
    font-weight: 700;
}
.sidebar-header small { color: var(--text-light); font-size: 11px; }

.sidebar-nav { padding: 12px 0; }

.sidebar-section {
    padding: 8px 20px 4px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-light);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 20px;
    color: rgba(255,255,255,0.65);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: var(--sidebar-hover);
    color: white;
}

.nav-item.active {
    background: var(--sidebar-hover);
    color: white;
    border-left-color: var(--primary-light);
}

.nav-item .icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.nav-item .badge {
    margin-left: auto;
    background: var(--red);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 50px;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    margin-left: 260px;
    flex: 1;
    min-height: 100vh;
}

.topbar {
    background: var(--card-bg);
    padding: 16px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-actions .btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 18px;
    transition: var(--transition);
}
.topbar-actions .btn-icon:hover { background: var(--primary-50); }

.admin-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

/* ===== PAGE CONTENT ===== */
.page-content { padding: 24px 28px; }

/* ===== STAT CARDS ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
}
.stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.stat-card .stat-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 12px;
}
.stat-card .stat-icon.purple { background: var(--primary-50); }
.stat-card .stat-icon.green { background: #D1FAE5; }
.stat-card .stat-icon.gold { background: #FEF3C7; }
.stat-card .stat-icon.blue { background: #DBEAFE; }
.stat-card .stat-icon.red { background: #FEE2E2; }

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-dark);
    line-height: 1;
}
.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-gray);
    margin-top: 4px;
}
.stat-card .stat-change {
    font-size: 12px;
    font-weight: 600;
    margin-top: 8px;
}
.stat-card .stat-change.up { color: var(--green); }
.stat-card .stat-change.down { color: var(--red); }

/* ===== CARDS & TABLES ===== */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin-bottom: 20px;
}

.card-header {
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.card-header h3 { font-size: 16px; font-weight: 700; }
.card-body { padding: 20px; }

table {
    width: 100%;
    border-collapse: collapse;
}
table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-gray);
    border-bottom: 1px solid var(--border);
    background: var(--body-bg);
}
table td {
    padding: 12px 16px;
    font-size: 14px;
    border-bottom: 1px solid var(--border);
    color: var(--text-dark);
}
table tr:hover td { background: var(--primary-50); }
table tr:last-child td { border-bottom: none; }

/* ===== BADGES ===== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 600;
}
.badge-green { background: #D1FAE5; color: var(--green-dark); }
.badge-red { background: #FEE2E2; color: var(--red); }
.badge-gold { background: #FEF3C7; color: #92400E; }
.badge-blue { background: #DBEAFE; color: #1D4ED8; }
.badge-purple { background: var(--primary-50); color: var(--primary); }

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-green { background: var(--green); color: white; }
.btn-green:hover { background: var(--green-dark); }
.btn-red { background: var(--red); color: white; }
.btn-outline {
    background: white;
    color: var(--text-dark);
    border: 1px solid var(--border);
}
.btn-outline:hover { background: var(--body-bg); }
.btn-sm { padding: 5px 12px; font-size: 12px; }

/* ===== FORMS ===== */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-gray);
    margin-bottom: 6px;
}
.form-control {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    background: white;
    color: var(--text-dark);
}
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(91, 45, 168, 0.1);
}

select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

/* ===== SEARCH ===== */
.search-box {
    position: relative;
    max-width: 320px;
}
.search-box input {
    padding-left: 40px;
}
.search-box .search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 16px;
    color: var(--text-light);
}

/* ===== GRID LAYOUTS ===== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* ===== PAGINATION ===== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 16px;
}
.pagination button {
    padding: 6px 12px;
    border: 1px solid var(--border);
    background: white;
    border-radius: 6px;
    cursor: pointer;
    font-size: 13px;
    transition: var(--transition);
}
.pagination button.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}
.pagination button:hover:not(.active) { background: var(--body-bg); }

/* ===== MODAL ===== */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 200;
}
.modal-overlay.active { display: flex; }

.modal {
    background: white;
    border-radius: var(--radius);
    width: 90%;
    max-width: 560px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}
.modal-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.modal-header h3 { font-size: 18px; font-weight: 700; }
.modal-close {
    width: 32px; height: 32px;
    border-radius: 8px;
    border: none;
    background: var(--body-bg);
    cursor: pointer;
    font-size: 18px;
}
.modal-body { padding: 24px; }
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .main-content { margin-left: 0; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
}