/* ============================================
   CasaAltair Home Automation - Design System
   ============================================ */

/* CSS Variables (Design Tokens) */
:root {
    /* Primary Colors (Golden - from logo) */
    --color-primary: #D4AF37;
    --color-primary-dark: #B8941F;
    --color-primary-light: #E5C769;
    --color-primary-bg: #F8F6F0;
    
    /* Accent Colors */
    --color-accent-blue: #4A90E2;
    --color-accent-green: #52C41A;
    --color-accent-red: #F5222D;
    --color-accent-orange: #FA8C16;
    
    /* Grayscale */
    --color-gray-50: #FAFAFA;
    --color-gray-100: #F5F5F5;
    --color-gray-200: #E8E8E8;
    --color-gray-300: #D9D9D9;
    --color-gray-400: #BFBFBF;
    --color-gray-500: #8C8C8C;
    --color-gray-600: #595959;
    --color-gray-700: #434343;
    --color-gray-800: #262626;
    --color-gray-900: #141414;
    
    /* Semantic Colors */
    --color-success: var(--color-accent-green);
    --color-warning: var(--color-accent-orange);
    --color-error: var(--color-accent-red);
    --color-info: var(--color-accent-blue);
    
    /* Typography */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-mono: 'Roboto Mono', 'Courier New', monospace;
    
    /* Font Sizes */
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-lg: 1.125rem;   /* 18px */
    --font-size-xl: 1.25rem;    /* 20px */
    --font-size-2xl: 1.5rem;    /* 24px */
    --font-size-3xl: 1.875rem;  /* 30px */
    --font-size-4xl: 2.25rem;   /* 36px */
    
    /* Font Weights */
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Spacing (8px grid) */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    --spacing-2xl: 3rem;    /* 48px */
    --spacing-3xl: 4rem;    /* 64px */
    
    /* Border Radius */
    --radius-sm: 0.25rem;    /* 4px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    
    /* Layout */
    --sidebar-width: 280px;
    --header-height: 64px;
    --container-max-width: 1400px;
    --device-card-background: var(--color-bg-primary);
    --device-card-border: var(--color-border);
    --device-card-hover-shadow: var(--shadow-md);
    --device-card-metric-label: var(--color-text-secondary);
    --device-card-unassigned: var(--color-warning);
    --chart-energy-bar: var(--color-primary);
    --chart-energy-grid: rgba(0, 0, 0, 0.05);
    --chart-energy-text: var(--color-text-secondary);
    --chart-energy-tooltip-bg: var(--color-bg-primary);
    --chart-energy-tooltip-text: var(--color-text-primary);
    --chart-energy-range-active: rgba(212, 175, 55, 0.14);
}

/* Light Mode Variables (Default) */
:root {
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: var(--color-gray-50);
    --color-bg-tertiary: var(--color-gray-100);
    --color-text-primary: var(--color-gray-900);
    --color-text-secondary: var(--color-gray-600);
    --color-text-tertiary: var(--color-gray-500);
    --color-border: var(--color-gray-200);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --color-bg-primary: var(--color-gray-900);
    --color-bg-secondary: var(--color-gray-800);
    --color-bg-tertiary: var(--color-gray-700);
    --color-text-primary: var(--color-gray-50);
    --color-text-secondary: var(--color-gray-300);
    --color-text-tertiary: var(--color-gray-500);
    --color-border: var(--color-gray-700);
    --chart-energy-bar: rgba(212, 175, 55, 0.75);
    --chart-energy-grid: rgba(255, 255, 255, 0.08);
    --chart-energy-text: var(--color-gray-200);
    --chart-energy-tooltip-bg: var(--color-bg-primary);
    --chart-energy-tooltip-text: var(--color-text-primary);
    --chart-energy-range-active: rgba(212, 175, 55, 0.22);
}

[data-theme="light"] {
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: var(--color-gray-50);
    --color-bg-tertiary: var(--color-gray-100);
    --color-text-primary: var(--color-gray-900);
    --color-text-secondary: var(--color-gray-600);
    --color-text-tertiary: var(--color-gray-500);
    --color-border: var(--color-gray-200);
}

/* ============================================
   Base Styles
   ============================================ */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }

.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }
[data-theme="dark"] .text-muted { color: #fff !important; }

/* Dark mode text color fixes */
[data-theme="dark"] .text-success {
    color: #52C41A !important;
}
[data-theme="dark"] .text-sm,
[data-theme="dark"] .text-xs {
    color: var(--color-text-secondary) !important;
}
[data-theme="dark"] strong {
    color: var(--color-text-primary) !important;
}

/* Energy unit styling */
.energy-unit-kwh {
    color: var(--color-text-primary);
}
.energy-unit-wh {
    color: var(--color-text-secondary);
    opacity: 0.7;
    font-size: 0.9em;
}

.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
[data-theme="dark"] .font-semibold { color: var(--color-text-primary); }
.font-bold { font-weight: var(--font-weight-bold); }

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    min-height: 44px; /* Touch-friendly */
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Button Sizes */
.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    min-height: 32px;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
    min-height: 52px;
}

/* Button Variants */
.btn-primary {
    background-color: var(--color-primary);
    color: #FFFFFF;
    border-color: var(--color-primary);
}

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

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

.btn-secondary:hover:not(:disabled) {
    background-color: var(--color-primary-bg);
}

.btn-ghost {
    background-color: transparent;
    color: var(--color-text-secondary);
    border-color: transparent;
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.btn-danger {
    background-color: var(--color-error);
    color: #FFFFFF;
    border-color: var(--color-error);
}

.btn-danger:hover:not(:disabled) {
    background-color: #D32F2F;
    border-color: #D32F2F;
}

.btn-success {
    background-color: var(--color-success);
    color: #FFFFFF;
    border-color: var(--color-success);
}

/* Button States */
.btn-loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn-loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid currentColor;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
}

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

/* ============================================
   Form Elements
   ============================================ */

.form-group {
    margin-bottom: var(--spacing-lg);
}

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

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    min-height: 44px; /* Touch-friendly */
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background-color: var(--color-bg-tertiary);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-error {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-error);
}

.form-help {
    display: block;
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.form-check-input {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.form-check-label {
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    cursor: pointer;
}

/* Switch Toggle (iOS-style) */
.form-switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
}

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

.form-switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-gray-400);
    transition: var(--transition-fast);
    border-radius: var(--radius-full);
}

.form-switch-slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: var(--transition-fast);
    border-radius: 50%;
}

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

.form-switch-input:checked + .form-switch-slider:before {
    transform: translateX(24px);
}

/* Range Slider */
.form-range {
    width: 100%;
    height: 6px;
    border-radius: var(--radius-full);
    background: var(--color-gray-300);
    outline: none;
    -webkit-appearance: none;
    accent-color: var(--color-primary);
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
}

.form-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--color-primary);
    cursor: pointer;
    border: none;
}

/* ============================================
   Cards
   ============================================ */

.card {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-normal);
}

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

.card-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.card-body {
    padding: var(--spacing-lg);
    color: var(--color-text-primary);
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    background-color: var(--color-bg-secondary);
}

/* Device Card */
.device-card {
    position: relative;
    cursor: pointer;
    border: 1px solid var(--device-card-border);
    transition: box-shadow var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

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

.device-card-body {
    display: grid;
    gap: var(--spacing-md);
}

.device-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.device-card-name {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
}

.device-card-subtitle {
    color: var(--color-text-secondary);
}

.device-card-status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
}

.device-card-status.online {
    background-color: rgba(82, 196, 26, 0.1);
    color: var(--color-success);
}

.device-card-status.offline {
    background-color: rgba(245, 34, 45, 0.1);
    color: var(--color-error);
}

.device-card-status span {
    margin-left: var(--spacing-xs);
}

.device-card-meta {
    display: grid;
    gap: var(--spacing-sm);
}

.device-card-metric {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.device-card-metric-label {
    color: var(--device-card-metric-label);
    font-size: var(--font-size-sm);
}

.device-card-metric-value {
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
}

[data-theme="dark"] .device-card-metric-value {
    color: var(--color-gray-200);
}

.device-card-room-unassigned {
    color: var(--device-card-unassigned);
    font-weight: var(--font-weight-semibold);
}

.device-card-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

/* Power Status Badge */
.power-status-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    min-width: 50px;
    text-align: center;
}

.power-status-on {
    background-color: rgba(82, 196, 26, 0.15);
    color: var(--color-success);
    border: 1px solid rgba(82, 196, 26, 0.3);
}

[data-theme="dark"] .power-status-on {
    background-color: rgba(82, 196, 26, 0.2);
    border-color: rgba(82, 196, 26, 0.4);
}

.power-status-off {
    background-color: rgba(140, 140, 140, 0.15);
    color: var(--color-gray-600);
    border: 1px solid rgba(140, 140, 140, 0.3);
}

[data-theme="dark"] .power-status-off {
    background-color: rgba(140, 140, 140, 0.2);
    color: var(--color-gray-400);
    border-color: rgba(140, 140, 140, 0.4);
}

/* Room Card */
.room-card {
    text-align: center;
    padding: var(--spacing-xl);
}

.room-card-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

.room-card-name {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.room-card-count {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

/* ============================================
   Layout Components
   ============================================ */

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    z-index: var(--z-fixed);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-xl);
}

.header-logo img {
    height: 32px;
    width: auto;
}

.header-nav {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Hide header nav on mobile, show in sidebar */
@media (max-width: 991px) {
    .header-nav-desktop {
        display: none;
    }
    
    #sidebar-toggle {
        display: block !important;
    }
}

@media (min-width: 992px) {
    .sidebar-mobile-header {
        display: none;
    }
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: var(--header-height);
    bottom: 0;
    width: var(--sidebar-width);
    background-color: var(--color-bg-primary);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    z-index: var(--z-fixed);
    transition: transform var(--transition-normal);
    text-align: left; /* Ensure text remains left-aligned */
}

@media (max-width: 991px) {
    .sidebar {
        left: auto;
        right: 0;
        border-right: none;
        border-left: 1px solid var(--color-border);
        transform: translateX(100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
}

.sidebar-nav {
    padding: var(--spacing-md);
}

.sidebar-mobile-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-mobile-header .search-bar {
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.sidebar-mobile-header .btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    flex-direction: column;
    padding: var(--spacing-sm);
    font-size: var(--font-size-xs);
}

.sidebar-mobile-header .btn span {
    margin-top: var(--spacing-xs);
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    margin-bottom: var(--spacing-xs);
}

.sidebar-icon,
.search-bar-icon {
    flex-shrink: 0;
    object-fit: contain;
}

.sidebar-icon {
    width: 20px;
    height: 20px;
}

.search-bar-icon {
    width: 18px;
    height: 18px;
}

.sidebar-item:hover,
.sidebar-item.active {
    background-color: var(--color-primary-bg);
    color: var(--color-primary);
}

/* Hide duplicate notification link on mobile (since it's in mobile header) */
@media (max-width: 991px) {
    .sidebar-mobile-hide {
        display: none;
    }
}

/* Sidebar Overlay (mobile only) */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-fixed) - 1);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

@media (max-width: 991px) {
    .sidebar-overlay {
        display: block;
    }
    
    .sidebar-overlay.active {
        opacity: 1;
    }
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: var(--spacing-xl);
    min-height: calc(100vh - var(--header-height));
}

@media (max-width: 991px) {
    .main-content {
        margin-left: 0;
    }
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 767px) {
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: repeat(1, 1fr);
    }
}

@media (min-width: 768px) and (max-width: 991px) {
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================
   Utilities
   ============================================ */

.d-flex { display: flex; }
.d-grid { display: grid; }
.d-none { display: none; }

.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.align-center { align-items: center; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
}

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

.badge-success {
    background-color: rgba(82, 196, 26, 0.1);
    color: var(--color-success);
}

.badge-error {
    background-color: rgba(245, 34, 45, 0.1);
    color: var(--color-error);
}

.badge-secondary {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary) !important;
}

.badge-warning {
    background-color: rgba(250, 140, 22, 0.1);
    color: var(--color-warning);
}

/* ============================================
   Device Controls
   ============================================ */

.device-control-panel {
    background-color: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.control-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.control-label {
    min-width: 120px;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

.control-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

/* Power Toggle */
.power-toggle {
    position: relative;
    width: 80px;
    height: 40px;
    background-color: var(--color-gray-300);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.power-toggle.active {
    background-color: var(--color-success);
}

.power-toggle-slider {
    position: absolute;
    top: 4px;
    left: 4px;
    width: 32px;
    height: 32px;
    background-color: white;
    border-radius: 50%;
    transition: transform var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.power-toggle.active .power-toggle-slider {
    transform: translateX(40px);
}

/* Brightness Slider Container */
.brightness-control {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.brightness-slider {
    flex: 1;
}

/* Color Picker */
.color-picker-container {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.color-picker-input {
    width: 60px;
    height: 60px;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    -webkit-appearance: none;
}

.color-picker-input::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker-input::-webkit-color-swatch {
    border: none;
    border-radius: var(--radius-md);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 575px) {
    .header {
        padding: 0 var(--spacing-md);
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
    
    .control-row {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .control-label {
        min-width: auto;
    }
}