/**
 * Raspberry Pi WiFi Configuration - Web Client Styles
 * Modern, responsive design for WiFi configuration interface
 */

/* ===== CSS Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #059669;
    --warning-color: #d97706;
    --error-color: #dc2626;
    --background-color: #f8fafc;
    --surface-color: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Animations */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'sans-serif';
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-color);
    min-height: 100vh;
}

/* ===== Layout Components ===== */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* ===== Header ===== */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: var(--spacing-xl) 0;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.header-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.header-icon {
    font-size: 2.5rem;
}

.header-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
}

/* ===== Main Content ===== */
.main {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 200px);
}

/* ===== Cards ===== */
.card, .status-card {
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--border-light);
}

.card-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.card-content {
    padding: var(--spacing-lg);
}

/* ===== Status Section ===== */
.status-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--border-light);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
}

.status-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.connected {
    background-color: var(--success-color);
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.2);
}

.status-dot.disconnected {
    background-color: var(--error-color);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

.connection-actions {
    padding: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.connection-info {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background: var(--background-color);
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.info-item label {
    font-weight: 500;
    color: var(--text-secondary);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover:not(:disabled) {
    background-color: #475569;
    transform: translateY(-1px);
}

.btn-small {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-icon {
    font-size: 1.1em;
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

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

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-lg);
}

/* ===== Network Lists ===== */
.current-connection {
    margin-bottom: var(--spacing-xl);
}

.current-connection h3,
.available-networks h3,
.manual-network h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.networks-list {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.network-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-fast);
}

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

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

.network-item.current {
    background-color: rgba(5, 150, 105, 0.1);
    border-color: var(--success-color);
}

.network-info {
    flex: 1;
    min-width: 0;
}

.network-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    word-break: break-all;
}

.network-details {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.network-security,
.network-signal,
.network-known {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.network-known {
    color: var(--success-color);
    font-weight: 500;
}

.network-actions {
    margin-left: var(--spacing-md);
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
    background-color: var(--border-light);
}

.modal-body {
    padding: var(--spacing-lg);
}

.network-connect-info {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--border-light);
    border-radius: var(--radius-md);
}

.network-connect-info .network-name {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
}

.network-connect-info .network-security {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ===== Progress Section ===== */
.progress-info {
    margin-bottom: var(--spacing-lg);
}

.progress-message {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--success-color));
    border-radius: var(--radius-sm);
    transition: width var(--transition-normal);
    width: 0%;
}

.progress-log {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--background-color);
    padding: var(--spacing-md);
}

.progress-log-entry {
    padding: var(--spacing-xs) 0;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.4;
}

.log-time {
    color: var(--text-secondary);
    margin-right: var(--spacing-sm);
}

/* ===== Device Information ===== */
.device-info {
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    background: var(--background-color);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.device-info h4 {
    font-size: 1rem;
    font-weight: 600;
    margin: var(--spacing-md) 0 var(--spacing-sm) 0;
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.info-item {
    display: flex;
    margin-bottom: var(--spacing-xs);
}

.info-key {
    font-weight: 600;
    min-width: 140px;
    color: var(--text-secondary);
}

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

.info-line {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.info-subitem {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    padding-left: var(--spacing-md);
}

/* WiFi Status Section */
.wifi-status-section {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.wifi-status-section h4 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.wifi-connected,
.wifi-disconnected,
.wifi-enabled {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.wifi-connected {
    background: rgba(5, 150, 105, 0.1);
    border: 1px solid rgba(5, 150, 105, 0.2);
}

.wifi-disconnected {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.wifi-enabled {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.wifi-status-icon {
    font-size: 1.2rem;
    margin-right: var(--spacing-sm);
}

.wifi-status-text {
    font-size: 0.95rem;
    font-weight: 500;
}

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

.wifi-disconnected .wifi-status-text {
    color: var(--error-color);
}

.wifi-enabled .wifi-status-text {
    color: var(--primary-color);
}

/* Service Status Section */
.service-status-section {
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    position: relative;
}

.service-status-section h4 {
    color: #8b5cf6;
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.configure-service-btn {
    font-size: 0.85rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: #8b5cf6;
    color: white;
    border: none;
    margin-left: var(--spacing-md);
}

.configure-service-btn:hover {
    background: #7c3aed;
}

.service-status {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: rgba(168, 85, 247, 0.05);
}

.service-status-text {
    font-size: 0.95rem;
    font-weight: 500;
    color: #8b5cf6;
}

.service-parameters-header {
    font-weight: 600;
    margin: var(--spacing-sm) 0;
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.service-param {
    margin-bottom: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(168, 85, 247, 0.05);
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    word-break: break-word;
    overflow-wrap: break-word;
}

.service-param-missing {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--error-color);
    font-weight: 500;
}

.service-line {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
}

/* Service Configuration Modal */
.service-config-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.service-config-info p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* CloudFlare Tunnel Configuration Modal */
.tunnel-config-info {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.tunnel-config-info p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.tunnel-status {
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.1);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.tunnel-requirements {
    background: rgba(59, 130, 246, 0.05);
    border: 1px solid rgba(59, 130, 246, 0.1);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.tunnel-requirements h4 {
    margin: 0 0 var(--spacing-sm) 0;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.tunnel-requirements ul {
    margin: 0;
    padding-left: var(--spacing-md);
    list-style: none;
}

.tunnel-requirements li {
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.status-indicator {
    font-weight: bold;
    margin-left: var(--spacing-xs);
}

/* CloudFlare Tunnel Status Section */
.tunnel-status-section {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    position: relative;
}

.tunnel-status-section h4 {
    color: #10b981;
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.configure-tunnel-btn {
    font-size: 0.85rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: #10b981;
    color: white;
    border: none;
    margin-left: var(--spacing-md);
}

.configure-tunnel-btn:hover {
    background: #059669;
}

.tunnel-status-display {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: rgba(16, 185, 129, 0.05);
}

.tunnel-status-text {
    font-size: 0.95rem;
    font-weight: 500;
    color: #10b981;
}

.tunnel-running {
    background: rgba(5, 150, 105, 0.1);
    border: 1px solid rgba(5, 150, 105, 0.2);
}

.tunnel-stopped {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.tunnel-not-configured {
    background: rgba(156, 163, 175, 0.1);
    border: 1px solid rgba(156, 163, 175, 0.2);
}

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

.tunnel-stopped .tunnel-status-text {
    color: var(--error-color);
}

.tunnel-not-configured .tunnel-status-text {
    color: var(--text-secondary);
}

.tunnel-info {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    word-break: break-word;
    overflow-wrap: break-word;
}

.tunnel-hostname {
    font-weight: 600;
    color: #10b981;
}

.tunnel-id {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.form-group small {
    display: block;
    margin-top: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.4;
}

/* ===== States ===== */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
    font-style: italic;
}

.loading::before {
    content: "⏳ ";
    font-style: normal;
}

.error {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--error-color);
    background: rgba(220, 38, 38, 0.1);
    border-radius: var(--radius-md);
    border: 1px solid rgba(220, 38, 38, 0.2);
}

.error::before {
    content: "⚠️ ";
}

.no-networks {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.no-networks::before {
    content: "📡 ";
}

/* ===== Notifications ===== */
.notifications {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    z-index: 1100;
    max-width: 400px;
    width: 100%;
}

.notification {
    background: var(--surface-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--primary-color);
    animation: slideIn 0.3s ease-out;
}

.notification.success {
    border-left-color: var(--success-color);
}

.notification.error {
    border-left-color: var(--error-color);
}

.notification.warning {
    border-left-color: var(--warning-color);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ===== Compatibility Warning ===== */
.compatibility-warning {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--spacing-md);
}

.warning-content {
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    max-width: 500px;
}

.warning-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    color: var(--warning-color);
}

.warning-content p {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== Footer ===== */
.footer {
    background: var(--surface-color);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .header-title {
        font-size: 1.5rem;
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .header-icon {
        font-size: 2rem;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .connection-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .network-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .network-actions {
        width: 100%;
        margin-left: 0;
    }
    
    .network-actions .btn {
        width: 100%;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .modal-content {
        margin: var(--spacing-md);
        max-height: calc(100vh - 2rem);
    }
    
    .network-details {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .card-content,
    .status-header,
    .connection-actions,
    .connection-info {
        padding: var(--spacing-md);
    }
    
    .main {
        padding: var(--spacing-md) 0;
    }
}

/* ===== Accessibility ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
.btn:focus,
.form-input:focus,
.modal-close:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-secondary: #000000;
    }
}

/* Dark mode support (basic) */
@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #0f172a;
        --surface-color: #1e293b;
        --text-primary: #f8fafc;
        --text-secondary: #cbd5e1;
        --border-color: #334155;
        --border-light: #475569;
    }
    
    .header {
        background: linear-gradient(135deg, #1e40af, #1e3a8a);
    }
    
    .device-info {
        background: var(--background-color);
    }
}