/* Admin Dashboard Advanced Styles */

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --border-color: #e5e7eb;
    --sidebar-width: 280px;
    --header-height: 70px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    color: #374151;
    overflow-x: hidden;
}

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

.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(135deg, var(--dark-color) 0%, #374151 100%);
    color: white;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    overflow-y: auto;
    transition: var(--transition);
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
}

.sidebar.collapsed {
    width: 70px;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    padding: 5px;
    border-radius: 4px;
    transition: var(--transition);
}

.sidebar-toggle:hover {
    background-color: rgba(255,255,255,0.1);
}

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

.sidebar-menu li {
    margin-bottom: 5px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: var(--transition);
    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(--primary-color);
}

.sidebar-menu i {
    margin-right: 15px;
    font-size: 18px;
    width: 20px;
    text-align: center;
}

.sidebar.collapsed .sidebar-menu a {
    justify-content: center;
    padding: 12px;
}

.sidebar.collapsed .sidebar-menu span {
    display: none;
}

.sidebar.collapsed .sidebar-menu i {
    margin-right: 0;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: var(--transition);
}

.sidebar.collapsed + .main-content {
    margin-left: 70px;
}

.main-header {
    height: var(--header-height);
    background: white;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.header-left {
    display: flex;
    align-items: center;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--secondary-color);
    margin-right: 15px;
    cursor: pointer;
}

.page-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--dark-color);
}

.header-right {
    display: flex;
    align-items: center;
}

.user-dropdown {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 8px;
    transition: var(--transition);
}

.user-btn:hover {
    background-color: #f1f5f9;
}

.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: bold;
    margin-right: 10px;
}

.user-info {
    text-align: left;
}

.user-name {
    font-weight: 500;
    color: var(--dark-color);
}

.user-role {
    font-size: 12px;
    color: var(--secondary-color);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    min-width: 200px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1001;
}

.user-dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 12px 20px;
    color: var(--dark-color);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
}

.dropdown-item:hover {
    background-color: #f8fafc;
}

.dropdown-item i {
    margin-right: 10px;
    width: 16px;
}

/* Content Area */
.content-area {
    padding: 30px;
    min-height: calc(100vh - var(--header-height));
}

/* Cards */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    transform: translateY(-2px);
}

.card-header {
    padding: 20px 25px;
    background: #f8fafc;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-color);
    margin: 0;
}

.card-body {
    padding: 25px;
}

.stats-card {
    text-align: center;
    padding: 30px 20px;
}

.stats-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 24px;
}

.stats-icon.primary { background: linear-gradient(135deg, var(--primary-color), var(--primary-dark)); color: white; }
.stats-icon.success { background: linear-gradient(135deg, var(--success-color), #059669); color: white; }
.stats-icon.warning { background: linear-gradient(135deg, var(--warning-color), #d97706); color: white; }
.stats-icon.danger { background: linear-gradient(135deg, var(--danger-color), #dc2626); color: white; }

.stats-value {
    font-size: 32px;
    font-weight: bold;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.stats-label {
    font-size: 14px;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    cursor: pointer;
    font-size: 14px;
}

.btn-primary { background: var(--primary-color); color: white; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }

.btn-success { background: var(--success-color); color: white; }
.btn-success:hover { background: #059669; transform: translateY(-1px); }

.btn-warning { background: var(--warning-color); color: white; }
.btn-warning:hover { background: #d97706; transform: translateY(-1px); }

.btn-danger { background: var(--danger-color); color: white; }
.btn-danger:hover { background: #dc2626; transform: translateY(-1px); }

.btn-secondary { background: var(--secondary-color); color: white; }
.btn-secondary:hover { background: #475569; transform: translateY(-1px); }

.btn i {
    margin-right: 8px;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.table th,
.table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background: #f8fafc;
    font-weight: 600;
    color: var(--dark-color);
}

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

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-color);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Grid */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col-12, .col-md-3, .col-md-4, .col-md-6, .col-md-12 {
    padding: 0 15px;
}

.col-md-3 { flex: 0 0 25%; max-width: 25%; }
.col-md-4 { flex: 0 0 33.333%; max-width: 33.333%; }
.col-md-6 { flex: 0 0 50%; max-width: 50%; }
.col-md-12 { flex: 0 0 100%; max-width: 100%; }

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

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

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

    .mobile-toggle {
        display: block;
    }

    .sidebar-toggle {
        display: none;
    }

    .content-area {
        padding: 20px 15px;
    }

    .main-header {
        padding: 0 15px;
    }

    .page-title {
        font-size: 20px;
    }

    .col-md-3, .col-md-4, .col-md-6 {
        flex: 0 0 100%;
        max-width: 100%;
        margin-bottom: 20px;
    }

    .stats-card {
        margin-bottom: 20px;
    }

    .btn {
        width: 100%;
        margin-bottom: 10px;
    }

    .table-responsive {
        overflow-x: auto;
    }
}

@media (max-width: 480px) {
    .main-header {
        height: 60px;
        padding: 0 10px;
    }

    .content-area {
        padding: 15px 10px;
    }

    .card-body {
        padding: 20px 15px;
    }

    .stats-value {
        font-size: 28px;
    }
}

/* Overlay for mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 999;
}

.sidebar-overlay.show {
    display: block;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

/* Loading */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid;
}

.alert-success {
    background-color: #f0fdf4;
    border-color: var(--success-color);
    color: #166534;
}

.alert-success i {
    color: var(--success-color);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success { background: var(--success-color); color: white; }
.badge-warning { background: var(--warning-color); color: white; }
.badge-danger { background: var(--danger-color); color: white; }
.badge-info { background: #06b6d4; color: white; }

/* Modals */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    animation: fadeIn 0.3s ease;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-dialog {
    max-width: 500px;
    width: 90%;
    margin: 20px;
}

.modal-content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    overflow: hidden;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from { transform: translateY(-50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    padding: 20px 25px;
    background: #f8fafc;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-color);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--secondary-color);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: var(--transition);
}

.modal-close:hover {
    background-color: #f1f5f9;
    color: var(--dark-color);
}

.modal-body {
    padding: 25px;
}

.modal-footer {
    padding: 20px 25px;
    background: #f8fafc;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Responsive Modals */
@media (max-width: 480px) {
    .modal-dialog {
        width: 95%;
        margin: 10px;
    }

    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 15px 20px;
    }
}

/* Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-muted { color: var(--secondary-color); }
.mt-4 { margin-top: 20px; }
.mb-4 { margin-bottom: 20px; }
.d-flex { display: flex; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }