/* Admin Panel Styles */
:root {
    --admin-primary: #1a4d8f;
    --admin-secondary: #d4af37;
    --admin-dark: #2c3e50;
    --admin-light: #ecf0f1;
    --admin-white: #ffffff;
    --admin-text: #333;
    --admin-text-light: #666;
    --admin-border: #ddd;
    --admin-shadow: 0 2px 10px rgba(0,0,0,0.1);
    --admin-transition: all 0.3s ease;
    --sidebar-width: 260px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f5f6fa;
    color: var(--admin-text);
}

/* Login Page Styles */
.admin-login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--admin-primary) 0%, #2563a8 100%);
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 20px;
}

.login-box {
    background: var(--admin-white);
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    padding: 50px 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
}

.login-header h1 {
    color: var(--admin-primary);
    font-size: 2rem;
    margin-bottom: 10px;
}

.login-header p {
    color: var(--admin-text-light);
    font-size: 0.95rem;
}

.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-error {
    background: #fee;
    color: #c33;
    border-left: 4px solid #c33;
}

.login-form {
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    color: var(--admin-text);
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.form-group label i {
    color: var(--admin-secondary);
    margin-right: 8px;
}

.form-group input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--admin-border);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--admin-transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 3px rgba(26, 77, 143, 0.1);
}

.btn-login {
    width: 100%;
    padding: 15px;
    background: var(--admin-primary);
    color: var(--admin-white);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--admin-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-login:hover {
    background: #15406f;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(26, 77, 143, 0.3);
}

.login-footer {
    text-align: center;
    padding-top: 25px;
    border-top: 1px solid var(--admin-border);
}

.login-footer p {
    color: var(--admin-text-light);
    font-size: 0.85rem;
    margin-bottom: 15px;
}

.login-footer a {
    color: var(--admin-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--admin-transition);
}

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

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

/* Sidebar */
.admin-sidebar {
    width: var(--sidebar-width);
    background: var(--admin-dark);
    color: var(--admin-white);
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    transition: var(--admin-transition);
    z-index: 1000;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 25px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.sidebar-logo {
    width: 50px;
    height: 50px;
    margin-bottom: 15px;
}

.sidebar-header h2 {
    font-size: 1.3rem;
    color: var(--admin-secondary);
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 25px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: var(--admin-transition);
    font-size: 0.95rem;
}

.nav-item:hover {
    background: rgba(255,255,255,0.1);
    color: var(--admin-white);
}

.nav-item.active {
    background: var(--admin-primary);
    color: var(--admin-white);
    border-left: 4px solid var(--admin-secondary);
}

.nav-item i {
    font-size: 1.2rem;
    width: 20px;
}

.sidebar-footer {
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Main Content */
.admin-main {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Top Bar */
.admin-topbar {
    background: var(--admin-white);
    padding: 20px 30px;
    box-shadow: var(--admin-shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--admin-text);
    cursor: pointer;
}

.admin-topbar h1 {
    color: var(--admin-primary);
    font-size: 1.8rem;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.admin-user {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--admin-text);
}

.admin-user i {
    font-size: 2rem;
    color: var(--admin-primary);
}

/* Dashboard Content */
.dashboard-content {
    padding: 30px;
    flex: 1;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--admin-white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--admin-shadow);
    display: flex;
    gap: 20px;
    align-items: center;
    transition: var(--admin-transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.stat-icon {
    width: 70px;
    height: 70px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--admin-white);
}

.stat-icon.blue {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.stat-icon.green {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

.stat-icon.orange {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.stat-icon.purple {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.stat-info {
    flex: 1;
}

.stat-info h3 {
    color: var(--admin-text-light);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 8px;
}

.stat-number {
    color: var(--admin-text);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-change {
    font-size: 0.85rem;
    color: var(--admin-text-light);
}

.stat-change.positive {
    color: #28a745;
}

.stat-change.negative {
    color: #dc3545;
}

/* Charts Section */
.charts-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 25px;
    margin-bottom: 40px;
}

.chart-card {
    background: var(--admin-white);
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--admin-shadow);
}

.chart-header {
    margin-bottom: 20px;
}

.chart-header h3 {
    color: var(--admin-primary);
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.chart-header p {
    color: var(--admin-text-light);
    font-size: 0.9rem;
}

.chart-placeholder {
    height: 300px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--admin-light);
    border-radius: 8px;
    color: var(--admin-text-light);
}

.chart-placeholder i {
    font-size: 4rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

.chart-placeholder p {
    font-size: 1rem;
}

/* Quick Actions */
.quick-actions {
    background: var(--admin-white);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--admin-shadow);
}

.quick-actions h3 {
    color: var(--admin-primary);
    font-size: 1.5rem;
    margin-bottom: 25px;
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.action-btn {
    padding: 20px;
    background: var(--admin-light);
    border: 2px solid transparent;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: var(--admin-transition);
    font-size: 1rem;
    color: var(--admin-text);
}

.action-btn:hover {
    background: var(--admin-primary);
    color: var(--admin-white);
    border-color: var(--admin-primary);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(26, 77, 143, 0.3);
}

.action-btn i {
    font-size: 2rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .charts-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .admin-sidebar {
        left: -260px;
    }
    
    .admin-sidebar.active {
        left: 0;
    }
    
    .admin-main {
        margin-left: 0;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .admin-topbar h1 {
        font-size: 1.3rem;
    }
    
    .admin-user span {
        display: none;
    }
    
    .dashboard-content {
        padding: 20px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .actions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .login-box {
        padding: 40px 30px;
    }
}

@media (max-width: 480px) {
    .actions-grid {
        grid-template-columns: 1fr;
    }
}