/* ============================================
   ADMIN DASHBOARD STYLES
   ============================================ */

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --info-color: #3498db;
    --text-color: #2c3e50;
    --bg-light: #ecf0f1;
    --bg-white: #ffffff;
    --border-color: #bdc3c7;
    --sidebar-width: 260px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-color);
    overflow-x: hidden;
}

/* ============================================
   SIDEBAR STYLES
   ============================================ */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--primary-color) 0%, #34495e 100%);
    color: white;
    overflow-y: auto;
    z-index: 1000;
    transition: all 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
}

.sidebar-nav {
    padding: 1rem 0;
}

.nav-item {
    margin: 0.2rem 1rem;
}

.nav-link {
    color: rgba(255,255,255,0.8);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255,255,255,0.1);
    color: white;
}

.nav-link i {
    width: 20px;
    margin-right: 0.75rem;
}

/* ============================================
   MAIN CONTENT AREA
   ============================================ */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    background: var(--bg-light);
}

/* ============================================
   HEADER STYLES
   ============================================ */
.admin-header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-content {
    display: flex;
    justify-content: between;
    align-items: center;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

/* ============================================
   CONTENT AREA
   ============================================ */
.content-area {
    padding: 2rem;
}

/* ============================================
   STATS CARDS
   ============================================ */
.stats-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    border: none;
    height: 100%;
}

.stats-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin-bottom: 1rem;
}

.stats-number {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stats-label {
    color: var(--text-color);
    opacity: 0.7;
}

/* ============================================
   CONTENT SECTIONS
   ============================================ */
.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

/* ============================================
   TABLE STYLES
   ============================================ */
.data-table {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.table {
    margin: 0;
}

.table thead th {
    background: var(--bg-light);
    border: none;
    font-weight: 600;
    color: var(--text-color);
}

/* ============================================
   FORM STYLES
   ============================================ */
.form-section {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(44, 62, 80, 0.25);
}

/* ============================================
   BUTTON STYLES
   ============================================ */
.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 0.5rem 1rem;
}

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

.btn-success {
    background: var(--success-color);
    border-color: var(--success-color);
}

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.show {
        transform: translateX(0);
    }

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

    .mobile-toggle {
        display: block !important;
    }
}

.mobile-toggle {
    display: none;
}

/* ============================================
   LOADING STATES
   ============================================ */
.loading {
    text-align: center;
    padding: 2rem;
}

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

/* ============================================
   ALERTS
   ============================================ */
.alert {
    border-radius: 8px;
    border: none;
}