:root {
    /* Modern dark theme variables for admin */
    --primary-color: #7aa3f0;
    --primary-dark: #6993ff;
    --secondary-color: #1a1a1a;
    --text-dark: #ffffff;
    --text-light: #b3b3b3;
    --gray-light: #2d2d2d;
    --gray-medium: #3a3a3a;
    --gray-dark: #8a8a8a;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 15px rgba(0, 0, 0, 0.4);
    --border-radius: 12px;
    --transition: all 0.3s ease;
    --sidebar-width: 260px;
    --header-height: 70px;
    
    /* Modern accent colors */
    --accent-purple: #8b5cf6;
    --accent-pink: #ec4899;
    --accent-orange: #f97316;
    --accent-teal: #14b8a6;
    --accent-lime: #84cc16;
    
    /* Modern gradients */
    --gradient-primary: linear-gradient(135deg, #6993ff, #8b5cf6);
    --gradient-success: linear-gradient(135deg, #10b981, #14b8a6);
    --gradient-warning: linear-gradient(135deg, #f59e0b, #f97316);
    --gradient-danger: linear-gradient(135deg, #ef4444, #ec4899);
    
    /* Modern admin specific */
    --modern-glass: rgba(255, 255, 255, 0.05);
    --modern-glass-border: rgba(255, 255, 255, 0.1);
    --modern-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --modern-gradient-main: linear-gradient(135deg, #9333ea 0%, #ec4899 50%, #06b6d4 100%);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--secondary-color);
}

/* Login Screen */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--modern-gradient-main);
}

.login-card {
    background: var(--modern-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--modern-glass-border);
    border-radius: var(--border-radius);
    box-shadow: var(--modern-shadow);
    padding: 3rem;
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.admin-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.admin-logo i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.admin-logo h1 {
    font-size: 1.8rem;
    color: var(--text-dark);
}

.logo-k {
    color: var(--primary-color);
    font-weight: 700;
}

.admin-badge {
    background: var(--primary-color);
    color: var(--secondary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-dark);
}

.form-group input {
    padding: 0.75rem;
    border: 2px solid var(--gray-medium);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(105, 147, 255, 0.1);
}

.error-message {
    color: var(--danger-color);
    font-size: 0.875rem;
    display: none;
    text-align: center;
    padding: 0.5rem;
    background: #f8d7da;
    border-radius: var(--border-radius);
}

.error-message.show {
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    text-align: center;
    justify-content: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-outline {
    background: transparent;
    color: var(--text-dark);
    border: 2px solid var(--gray-medium);
}

.btn-outline:hover {
    background: var(--gray-medium);
}

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

.btn-warning {
    background: var(--warning-color);
    color: var(--text-dark);
}

.btn-danger {
    background: var(--danger-color);
    color: var(--secondary-color);
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Admin Container */
.admin-container {
    display: grid;
    grid-template-areas: 
        "header header"
        "sidebar content";
    grid-template-columns: var(--sidebar-width) 1fr;
    grid-template-rows: var(--header-height) 1fr;
    min-height: 100vh;
}

/* Header */
.admin-header {
    grid-area: header;
    background: var(--secondary-color);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    z-index: 1000;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-dark);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.sidebar-toggle:hover {
    background: var(--gray-light);
}

.header-left h1 {
    font-size: 1.5rem;
    color: var(--text-dark);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-right .theme-toggle {
    background: none;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 6px 10px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-right .theme-toggle:hover {
    background: var(--primary-color);
    color: var(--secondary-color);
}

.welcome-text {
    color: var(--text-light);
}

/* Sidebar */
.sidebar {
    grid-area: sidebar;
    background: var(--secondary-color);
    box-shadow: var(--shadow);
    padding: 2rem 0;
    overflow-y: auto;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: var(--gray-light);
    color: var(--primary-color);
}

.nav-item.active {
    background: #f0f7ff;
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

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

/* Main Content */
.main-content {
    grid-area: content;
    padding: 2rem;
    overflow-y: auto;
}

.content-section {
    display: none;
}

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

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--gray-medium);
}

.section-header h2 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-dark);
    font-size: 1.8rem;
}

.section-filters {
    display: flex;
    gap: 1rem;
}

.section-filters select {
    padding: 0.5rem;
    border: 2px solid var(--gray-medium);
    border-radius: var(--border-radius);
    background: var(--secondary-color);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--secondary-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 2rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
}

.stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.dashboard-card {
    background: var(--secondary-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 2rem;
}

.dashboard-card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    font-size: 1.2rem;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    margin-top: 1rem;
    transition: var(--transition);
}

.card-link:hover {
    text-decoration: underline;
}

/* Recent Requests */
.recent-requests {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.request-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--gray-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.request-item:hover {
    background: #e8f4fd;
}

.request-info h4 {
    color: var(--text-dark);
    margin-bottom: 0.25rem;
}

.request-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.request-meta {
    text-align: right;
}

.request-budget {
    font-weight: 600;
    color: var(--primary-color);
}

.request-date {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Activity Summary */
.activity-summary {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--gray-light);
    border-radius: var(--border-radius);
}

.activity-item i {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-color);
}

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

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

.text-warning {
    background: var(--warning-color);
}

.activity-item span {
    flex: 1;
    color: var(--text-dark);
}

.activity-item small {
    color: var(--text-light);
}

/* Tables */
.table-container {
    background: var(--secondary-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    background: var(--gray-light);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-dark);
    border-bottom: 2px solid var(--gray-medium);
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--gray-medium);
    color: var(--text-dark);
}

.data-table tr:hover {
    background: var(--gray-light);
}

.data-table .loading {
    text-align: center;
    color: var(--text-light);
    font-style: italic;
}

/* Status Badges */
.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.status-public {
    background: #d4edda;
    color: #155724;
}

.status-private {
    background: #f8d7da;
    color: #721c24;
}

.status-new {
    background: #cce5ff;
    color: #004085;
}

.status-in_progress {
    background: #fff3cd;
    color: #856404;
}

.status-completed {
    background: #d4edda;
    color: #155724;
}

.status-rejected {
    background: #f8d7da;
    color: #721c24;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.action-btn {
    padding: 0.25rem 0.5rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
}

.action-btn:hover {
    transform: translateY(-1px);
}

.action-btn.view {
    background: var(--info-color);
    color: var(--secondary-color);
}

.action-btn.edit {
    background: var(--warning-color);
    color: var(--text-dark);
}

.action-btn.delete {
    background: var(--danger-color);
    color: var(--secondary-color);
}

/* Settings */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.settings-card {
    background: var(--secondary-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 2rem;
}

.settings-card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.settings-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--gray-medium);
}

.settings-item:last-child {
    border-bottom: none;
}

.text-muted {
    color: var(--text-light);
}

/* Loading States */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-light);
    font-style: italic;
}

.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .admin-container {
        grid-template-areas: 
            "header"
            "content";
        grid-template-columns: 1fr;
        grid-template-rows: var(--header-height) 1fr;
    }
    
    .sidebar {
        position: fixed;
        left: -100%;
        top: var(--header-height);
        height: calc(100vh - var(--header-height));
        width: var(--sidebar-width);
        z-index: 999;
        transition: var(--transition);
    }
    
    .sidebar.open {
        left: 0;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 1rem;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .header-right {
        flex-direction: column;
        align-items: flex-end;
        gap: 0.5rem;
    }
    
    .welcome-text {
        display: none;
    }
    
    .data-table {
        font-size: 0.875rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.5rem;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .settings-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .login-card {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }
    
    .admin-header {
        padding: 0 1rem;
    }
    
    .header-left h1 {
        font-size: 1.2rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: 1.5rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-section.active {
    animation: fadeInUp 0.5s ease;
}

/* Configuration Form Styles */
.config-editor {
    background: var(--secondary-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-light);
}

.form-grid {
    display: grid;
    gap: 2rem;
}

.form-section {
    background: var(--bg-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border: 1px solid var(--gray-light);
}

.form-section h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 1px solid var(--gray-medium);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(105, 147, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Components List */
.components-list,
.peripherals-list,
.performances-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
}

.component-item,
.peripheral-item,
.performance-item {
    background: var(--secondary-color);
    border: 1px solid var(--gray-light);
    border-radius: var(--border-radius);
    padding: 1rem;
    cursor: move;
}

.component-header,
.peripheral-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.move-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.move-buttons .btn-icon {
    padding: 0.25rem;
    font-size: 0.8rem;
    min-width: auto;
    width: 2rem;
    height: 1.5rem;
    border-radius: 0.25rem;
}

.move-buttons .move-up:hover {
    background-color: var(--success-color);
    color: white;
}

.move-buttons .move-down:hover {
    background-color: var(--success-color);
    color: white;
}

.component-type,
.peripheral-type {
    flex: 1;
    font-weight: 600;
    background: transparent;
    border: none;
    font-size: 1rem;
    color: var(--primary-color);
}

.component-type:focus,
.peripheral-type:focus {
    outline: 1px solid var(--primary-color);
    border-radius: 4px;
    padding: 0.25rem;
}

.component-details {
    display: grid;
    grid-template-columns: 2fr 1.5fr 2fr 1fr auto;
    gap: 0.5rem;
    align-items: center;
}

.peripheral-details {
    display: grid;
    grid-template-columns: 2fr 1.5fr 2fr 1fr auto;
    gap: 0.5rem;
    align-items: center;
}

.peripheral-pros-cons {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--gray-light);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.pros-section, .cons-section {
    margin-bottom: 1rem;
}

.section-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.text-success {
    color: var(--success-color);
}

.text-warning {
    color: var(--warning-color);
}

.pros-list, .cons-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.pro-item, .con-item {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.pro-input, .con-input {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--gray-medium);
    border-radius: 6px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.pro-input:focus, .con-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(105, 147, 255, 0.1);
}

.btn-success {
    background: var(--gradient-success);
    color: white;
    border: none;
}

.btn-success:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}

.btn-warning {
    background: var(--gradient-warning);
    color: white;
    border: none;
}

.btn-warning:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}

.performance-details {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    gap: 0.5rem;
    align-items: center;
}

.component-name,
.component-image,
.component-link,
.component-price,
.peripheral-name,
.peripheral-image,
.peripheral-link,
.peripheral-price,
.performance-game,
.performance-settings,
.performance-fps {
    padding: 0.5rem;
    border: 1px solid var(--gray-light);
    border-radius: 4px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.component-name:focus,
.component-image:focus,
.component-link:focus,
.component-price:focus,
.peripheral-name:focus,
.peripheral-image:focus,
.peripheral-link:focus,
.peripheral-price:focus,
.performance-game:focus,
.performance-settings:focus,
.performance-fps:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(105, 147, 255, 0.1);
}

.btn-icon {
    padding: 0.5rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    background: transparent;
}

.btn-icon.btn-danger {
    color: var(--error-color);
}

.btn-icon.btn-danger:hover {
    background: var(--error-color);
    color: white;
}

.remove-component,
.remove-peripheral,
.remove-performance,
.remove-feature {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Promo Section */
.promo-section {
    margin-top: 1rem;
    padding: 1rem;
    background: linear-gradient(135deg, #4A90E2, #357ABD);
    border-radius: var(--border-radius);
    color: white;
}

.promo-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.promo-info i {
    color: #FFD700;
}

.promo-info strong {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-weight: bold;
}

/* Performance Grid */
.performance-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.performance-input {
    width: 100%;
}

/* Features List */
.features-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-input {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--gray-light);
    border-radius: 4px;
}

/* Form Actions */
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-light);
}

/* Drag and Drop Styles */
.component-item.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.component-item.drag-over {
    border-color: var(--primary-color);
    background: rgba(105, 147, 255, 0.05);
}

/* Responsive Design for Form */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .performance-grid {
        grid-template-columns: 1fr;
    }
    
    .component-details {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .config-editor {
        padding: 1rem;
    }
}