:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --dark-bg: #0f172a;
    --dark-surface: #1e293b;
    --dark-card: #334155;
    --light-bg: #f8fafc;
    --light-surface: #ffffff;
    --light-card: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--light-bg);
    color: var(--text-primary);
    transition: all 0.3s ease;
    overflow-x: hidden;
}

body.dark {
    --light-bg: var(--dark-bg);
    --light-surface: var(--dark-surface);
    --light-card: var(--dark-card);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --border-color: #475569;
}

/* Login Screen */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><polygon fill="%23ffffff08" points="0,1000 1000,800 1000,1000"/><polygon fill="%23ffffff04" points="0,800 1000,600 1000,800 0,1000"/></svg>');
    background-size: cover;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 48px;
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 440px;
    z-index: 10;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 16px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    font-weight: bold;
}

.login-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 16px;
}

.form-group {
    margin-bottom: 24px;
}

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

.form-input {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: var(--light-surface);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.login-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.login-btn:active {
    transform: translateY(0);
}

/* Main Dashboard */
.dashboard {
    display: none;
    min-height: 100vh;
    background: var(--light-bg);
}

.dashboard-header {
    background: var(--light-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 18px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.search-container {
    position: relative;
    width: 400px;
}

.search-input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    background: var(--light-card);
    font-size: 14px;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.theme-toggle {
    background: var(--light-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: var(--primary-color);
    color: white;
}

.notification-btn {
    position: relative;
    background: var(--light-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--error-color);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--light-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 8px 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--success-color), #059669);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 14px;
}

.dashboard-main {
    display: flex;
    min-height: calc(100vh - 73px);
}

.sidebar {
    width: 280px;
    background: var(--light-surface);
    border-right: 1px solid var(--border-color);
    padding: 24px 0;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 32px;
}

.nav-title {
    padding: 0 24px 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-right: 3px solid transparent;
}

.nav-item:hover,
.nav-item.active {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    border-right-color: var(--primary-color);
}

.nav-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.content-area {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
}

.page-header {
    margin-bottom: 32px;
}

.page-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 16px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--light-surface);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.stat-title {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
}

.stat-value {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.stat-change {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
}

.stat-change.positive {
    color: var(--success-color);
}

.stat-change.negative {
    color: var(--error-color);
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

.card {
    background: var(--light-surface);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.card-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    background: var(--light-card);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.quick-action-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: var(--primary-color);
    color: white;
}

.action-icon {
    font-size: 24px;
}

.action-text {
    font-weight: 600;
}

.route-planner {
    grid-column: 1 / -1;
}

.planner-grid {
    display: grid;
    grid-template-columns: 300px 1fr 300px;
    gap: 24px;
}

.resource-panel {
    background: var(--light-card);
    border-radius: 12px;
    padding: 20px;
    max-height: 600px;
    overflow-y: auto;
}

.resource-category {
    margin-bottom: 24px;
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border-color);
}

.category-title {
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.category-count {
    background: var(--primary-color);
    color: white;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}

.resource-item {
    background: var(--light-surface);
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 8px;
    cursor: grab;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    box-shadow: var(--shadow-sm);
}

.resource-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.resource-item:active {
    cursor: grabbing;
    transform: scale(1.02);
}

.resource-item.driver {
    border-left: 4px solid var(--success-color);
}

.resource-item.vehicle {
    border-left: 4px solid var(--warning-color);
}

.resource-item.trailer {
    border-left: 4px solid #8b5cf6;
}

.resource-item.order {
    border-left: 4px solid var(--error-color);
}

.resource-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.resource-details {
    font-size: 14px;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.status-badge {
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}

.status-available {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.status-busy {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.status-maintenance {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

.planning-workspace {
    background: var(--light-card);
    border-radius: 12px;
    padding: 24px;
    min-height: 600px;
    position: relative;
}

.workspace-header {
    text-align: center;
    margin-bottom: 24px;
}

.drop-zones {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.drop-zone {
    min-height: 120px;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    padding: 16px;
    text-align: center;
}

.drop-zone.active {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}

.drop-zone-icon {
    font-size: 24px;
    margin-bottom: 8px;
    color: var(--text-muted);
}

.drop-zone-title {
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.drop-zone-hint {
    font-size: 12px;
    color: var(--text-muted);
}

.route-preview {
    background: var(--light-surface);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
    border: 2px solid var(--border-color);
}

.route-status {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-style: italic;
}

.route-complete {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.create-route-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.create-route-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--text-muted);
}

.create-route-btn:not(:disabled):hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.real-time-panel {
    background: var(--light-card);
    border-radius: 12px;
    padding: 20px;
}

.live-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.live-dot {
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.activity-feed {
    max-height: 400px;
    overflow-y: auto;
}

.activity-item {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.activity-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    flex-shrink: 0;
}

.activity-content {
    flex: 1;
}

.activity-text {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.activity-time {
    font-size: 12px;
    color: var(--text-muted);
}

.mobile-driver-view {
    display: none;
    max-width: 420px;
    margin: 0 auto;
    background: var(--light-surface);
    min-height: 100vh;
}

.mobile-header {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 20px;
    text-align: center;
    position: relative;
}

.back-btn {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
}

.order-details {
    padding: 24px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
}

.detail-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.detail-value {
    color: var(--text-primary);
    font-weight: 500;
}

.camera-section {
    padding: 24px;
    text-align: center;
}

.camera-btn {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
    border: none;
    padding: 16px 24px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    margin: 8px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.camera-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.scanner-view {
    display: none;
    background: #000;
    min-height: 100vh;
    position: relative;
    color: white;
}

.scanner-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 320px;
    height: 240px;
    border: 3px solid var(--success-color);
    border-radius: 12px;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.6);
}

.scanner-corners {
    position: absolute;
    inset: -3px;
}

.corner {
    position: absolute;
    width: 20px;
    height: 20px;
    border: 3px solid var(--success-color);
}

.corner.top-left {
    top: 0;
    left: 0;
    border-right: none;
    border-bottom: none;
}

.corner.top-right {
    top: 0;
    right: 0;
    border-left: none;
    border-bottom: none;
}

.corner.bottom-left {
    bottom: 0;
    left: 0;
    border-right: none;
    border-top: none;
}

.corner.bottom-right {
    bottom: 0;
    right: 0;
    border-left: none;
    border-top: none;
}

.scanner-instructions {
    position: absolute;
    bottom: 120px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    background: rgba(0, 0, 0, 0.8);
    padding: 20px 24px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.capture-btn {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--success-color);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-lg);
}

.toast {
    position: fixed;
    top: 24px;
    right: 24px;
    background: var(--light-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 20px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
}

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

.toast-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    flex-shrink: 0;
}

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

.toast.error .toast-icon {
    background: var(--error-color);
}

.toast.info .toast-icon {
    background: var(--primary-color);
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Table Styles */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--light-surface);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.data-table th,
.data-table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--light-card);
    font-weight: 600;
    color: var(--text-primary);
}

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

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

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

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

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

.filters {
    background: var(--light-surface);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.filter-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

.filter-input {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    background: var(--light-card);
}

@media (max-width: 1024px) {
    .content-grid {
        grid-template-columns: 1fr;
    }

    .planner-grid {
        grid-template-columns: 1fr;
    }

    .search-container {
        width: 250px;
    }
}

@media (max-width: 768px) {
    .dashboard-main {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        padding: 16px 0;
    }

    .nav-section {
        margin-bottom: 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .header-right {
        gap: 8px;
    }

    .search-container {
        display: none;
    }

    .filters {
        flex-direction: column;
        align-items: stretch;
    }
}

/* Preferences Styles */
.preferences-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 24px;
    background: var(--light-card);
    padding: 4px;
    border-radius: 12px;
    overflow-x: auto;
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    font-size: 14px;
}

.tab-btn.active,
.tab-btn:hover {
    background: var(--primary-color);
    color: white;
}

.tab-content {
    display: none;
}

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

.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
}

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

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: 0.4s;
    border-radius: 34px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

input:checked+.toggle-slider {
    background-color: var(--primary-color);
}

input:checked+.toggle-slider:before {
    transform: translateX(26px);
}

/* Theme Options */
.theme-option {
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-option.active {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}

.theme-preview {
    width: 100%;
    height: 80px;
    border-radius: 8px;
    margin-bottom: 8px;
    position: relative;
    overflow: hidden;
}

.light-theme {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
}

.dark-theme {
    background: linear-gradient(135deg, #1e293b, #0f172a);
}

.auto-theme {
    background: linear-gradient(135deg, #f8fafc 50%, #1e293b 50%);
}

.theme-preview::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 8px;
    right: 8px;
    height: 20px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

/* Integration Styles */
.integration-item {
    background: var(--light-card);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.integration-card {
    background: var(--light-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    transition: all 0.3s ease;
}

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

@media (max-width: 768px) {
    .dashboard-main {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        padding: 16px 0;
    }

    .nav-section {
        margin-bottom: 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .header-right {
        gap: 8px;
    }

    .search-container {
        display: none;
    }

    .filters {
        flex-direction: column;
        align-items: stretch;
    }

    .preferences-tabs {
        flex-wrap: wrap;
    }

    .tab-btn {
        flex: 1;
        min-width: 120px;
    }
}