/* Admin Dashboard CSS */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --sidebar-width: 250px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f4f6f9;
    color: #333;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495e 100%);
    color: white;
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
}

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

.sidebar-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0;
}

.sidebar-menu {
    list-style: none;
    padding: 20px 0;
}

.sidebar-menu li {
    margin: 0;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background-color: rgba(255,255,255,0.1);
    color: white;
    border-left-color: var(--secondary-color);
}

.sidebar-menu i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: all 0.3s ease;
}

/* Top Navigation */
.top-navbar {
    background: white;
    padding: 15px 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand h4 {
    margin: 0;
    color: var(--primary-color);
    font-weight: 600;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-dropdown {
    position: relative;
    display: inline-block;
}

.user-dropdown .dropdown-toggle {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.user-dropdown .dropdown-toggle:hover {
    background-color: var(--light-color);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    min-width: 160px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    border-radius: 5px;
    border: none;
    z-index: 1001;
    display: none;
}

.dropdown-menu.show {
    display: block;
}

.dropdown-item {
    padding: 10px 15px;
    color: var(--primary-color);
    text-decoration: none;
    display: block;
    transition: background-color 0.3s ease;
}

.dropdown-item:hover {
    background-color: var(--light-color);
}

/* Content Area */
.content-area {
    padding: 30px;
}

.page-header {
    margin-bottom: 30px;
}

.page-title {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0;
}

.breadcrumb {
    background: none;
    padding: 0;
    margin-top: 5px;
}

.breadcrumb-item {
    color: #6c757d;
}

.breadcrumb-item.active {
    color: var(--primary-color);
    font-weight: 500;
}

/* Cards */
.card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    border: none;
    margin-bottom: 30px;
    overflow: hidden;
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495e 100%);
    color: white;
    padding: 20px;
    border-bottom: none;
}

.card-title {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
}

.card-body {
    padding: 25px;
}

/* Stats Cards */
.stats-card {
    background: white;
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    border: none;
    transition: transform 0.3s ease;
}

.stats-card:hover {
    transform: translateY(-5px);
}

.stats-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stats-icon.primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495e 100%);
}

.stats-icon.success {
    background: linear-gradient(135deg, var(--success-color) 0%, #2ecc71 100%);
}

.stats-icon.warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #e67e22 100%);
}

.stats-icon.info {
    background: linear-gradient(135deg, var(--info-color) 0%, #3498db 100%);
}

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

.stats-label {
    color: #6c757d;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Tables */
.table {
    margin: 0;
}

.table thead th {
    background-color: var(--light-color);
    border-bottom: 2px solid var(--primary-color);
    font-weight: 600;
    color: var(--primary-color);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table tbody tr {
    transition: background-color 0.3s ease;
}

.table tbody tr:hover {
    background-color: rgba(52, 152, 219, 0.05);
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #2980b9 100%);
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #2ecc71 100%);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #e67e22 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #c0392b 100%);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #3498db 100%);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #5a6268 100%);
    color: white;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.btn-sm {
    padding: 5px 15px;
    font-size: 0.8rem;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 8px;
    display: block;
}

.form-control,
.form-select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e6ed;
    border-radius: 5px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    background-color: white;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--secondary-color);
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

/* Search */
.search-box {
    position: relative;
    display: inline-block;
    margin-bottom: 20px;
}

.search-box input {
    padding-right: 40px;
}

.search-box i {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #6c757d;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
    gap: 5px;
}

.page-link {
    padding: 8px 12px;
    color: var(--primary-color);
    text-decoration: none;
    border: 1px solid #dee2e6;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.page-link:hover,
.page-link.active {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1050;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-dialog {
    position: relative;
    width: auto;
    max-width: 500px;
    margin: 1.75rem auto;
}

.modal-content {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 25px rgba(0,0,0,0.15);
    border: none;
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid #e0e6ed;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
}

.btn-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #6c757d;
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    padding: 15px 25px;
    border-top: 1px solid #e0e6ed;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Alerts */
.alert {
    padding: 15px 20px;
    margin-bottom: 20px;
    border-radius: 5px;
    border: none;
    font-weight: 500;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--danger-color);
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background-color: #cce7ff;
    color: #0c5460;
    border-left: 4px solid var(--info-color);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .top-navbar {
        padding: 15px 20px;
    }
    
    .content-area {
        padding: 20px;
    }
    
    .stats-card {
        margin-bottom: 20px;
    }
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, #34495e 100%);
}

.login-card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h2 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 10px;
}

.login-header p {
    color: #6c757d;
    margin: 0;
}