/**
 * HomeWatch Security System - Main Stylesheet
 * Modern dark theme with glassmorphism effects
 */

/* ============================================================================
   CSS Variables & Theme
   ============================================================================ */

:root {
    /* Colors */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-bg-elevated: #1a1a24;
    --color-bg-glass: rgba(26, 26, 36, 0.8);
    
    --color-surface: #1e1e2e;
    --color-surface-hover: #252538;
    --color-surface-active: #2a2a40;
    
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);
    
    --color-text-primary: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-text-muted: #606070;
    
    --color-accent: #6366f1;
    --color-accent-hover: #818cf8;
    --color-accent-glow: rgba(99, 102, 241, 0.3);
    
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-dark: linear-gradient(180deg, #12121a 0%, #0a0a0f 100%);
    --gradient-glow: radial-gradient(circle at center, var(--color-accent-glow) 0%, transparent 70%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px var(--color-accent-glow);
    
    /* 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;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
}

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

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background: var(--gradient-dark);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================================================================
   Header & Navigation
   ============================================================================ */

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.header-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: 600;
    font-size: var(--font-size-xl);
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
}

.nav {
    display: flex;
    gap: var(--spacing-sm);
}

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

.nav-link svg {
    width: 18px;
    height: 18px;
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: var(--color-surface-hover);
}

.nav-link.active {
    color: var(--color-accent);
    background: rgba(99, 102, 241, 0.1);
}

.header-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--color-success);
    box-shadow: 0 0 8px var(--color-success);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ============================================================================
   Main Content
   ============================================================================ */

.main-content {
    flex: 1;
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

/* ============================================================================
   Dashboard Layout
   ============================================================================ */

.dashboard {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: var(--spacing-xl);
}

@media (max-width: 1200px) {
    .dashboard {
        grid-template-columns: 1fr;
    }
}

/* ============================================================================
   Camera Section
   ============================================================================ */

.camera-section {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

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

.section-header h2 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.section-header h2 svg {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
}

.camera-controls {
    display: flex;
    gap: var(--spacing-sm);
}

.camera-feed-container {
    position: relative;
    background: var(--color-bg-primary);
}

.camera-feed {
    position: relative;
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.camera-feed img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.camera-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    color: var(--color-text-muted);
    text-align: center;
    padding: var(--spacing-xl);
}

.camera-placeholder svg {
    width: 80px;
    height: 80px;
    opacity: 0.3;
}

.camera-placeholder p {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-text-secondary);
}

.camera-placeholder span {
    font-size: var(--font-size-sm);
}

.stream-overlay {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.camera-feed.streaming .stream-overlay {
    opacity: 1;
}

.live-badge {
    background: var(--color-danger);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    animation: pulse 1.5s infinite;
}

.timestamp {
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-family: monospace;
}

/* ============================================================================
   Controls Panel
   ============================================================================ */

.controls-panel {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.control-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-lg);
}

.control-card h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.control-card h3 svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.control-group {
    margin-bottom: var(--spacing-md);
}

.control-group:last-child {
    margin-bottom: 0;
}

.control-group label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.value-display {
    color: var(--color-accent);
    font-weight: 500;
    font-family: monospace;
}

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

.select-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.select-input:hover {
    border-color: var(--color-border-hover);
}

.select-input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.range-input {
    width: 100%;
    height: 6px;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-full);
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
}

.range-input::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast);
}

.range-input::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.range-input::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.btn-secondary {
    background: var(--color-surface-hover);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-surface-active);
    border-color: var(--color-border-hover);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Toggle Camera Button States */
#toggle-camera .icon-off { display: none; }
#toggle-camera.streaming .icon-on { display: none; }
#toggle-camera.streaming .icon-off { display: block; }

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

.preset-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.preset-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.preset-btn svg {
    width: 24px;
    height: 24px;
}

.preset-btn:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.preset-btn.active {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* ============================================================================
   Toggle Switch
   ============================================================================ */

.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.toggle-switch {
    position: relative;
    width: 48px;
    height: 26px;
}

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

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background: var(--color-text-secondary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

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

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(22px);
    background: white;
}

/* ============================================================================
   Status Card
   ============================================================================ */

.status-card {
    background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-elevated) 100%);
}

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

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

.status-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

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

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
}

.status-dot.online {
    background: var(--color-success);
    box-shadow: 0 0 8px var(--color-success);
}

.status-dot.offline {
    background: var(--color-text-muted);
}

/* ============================================================================
   Toast Notifications
   ============================================================================ */

.toast-container {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
}

.toast.success { border-left: 3px solid var(--color-success); }
.toast.warning { border-left: 3px solid var(--color-warning); }
.toast.error { border-left: 3px solid var(--color-danger); }

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

/* ============================================================================
   Timelapse Page
   ============================================================================ */

.timelapse-page {
    max-width: 1400px;
    margin: 0 auto;
}

.timelapse-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.timelapse-header h1 {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-3xl);
    font-weight: 700;
}

.timelapse-header h1 svg {
    width: 40px;
    height: 40px;
    color: var(--color-accent);
}

.timelapse-header .subtitle {
    color: var(--color-text-secondary);
    margin-top: var(--spacing-sm);
}

.timelapse-container {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--spacing-xl);
}

@media (max-width: 1000px) {
    .timelapse-container {
        grid-template-columns: 1fr;
    }
}

/* ============================================================================
   Timelapse Viewer
   ============================================================================ */

.timelapse-viewer {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.viewer-frame {
    position: relative;
    aspect-ratio: 16/9;
    background: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.viewer-frame img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: none;
}

.viewer-frame img.visible {
    display: block;
}

.viewer-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--color-text-muted);
}

.viewer-placeholder svg {
    width: 80px;
    height: 80px;
    opacity: 0.3;
}

.frame-info {
    position: absolute;
    bottom: var(--spacing-md);
    left: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    pointer-events: none;
}

.frame-time,
.frame-counter {
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-family: monospace;
}

/* ============================================================================
   Playback Controls
   ============================================================================ */

.playback-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.control-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.control-btn svg {
    width: 20px;
    height: 20px;
}

.control-btn:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.control-btn.play-btn {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-full);
}

.control-btn.play-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.play-btn .icon-pause { display: none; }
.play-btn.playing .icon-play { display: none; }
.play-btn.playing .icon-pause { display: block; }

.speed-control {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-left: var(--spacing-lg);
    padding-left: var(--spacing-lg);
    border-left: 1px solid var(--color-border);
}

.speed-control label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.speed-control select {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
}

/* ============================================================================
   Timeline
   ============================================================================ */

.timeline-container {
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
}

.timeline-scrubber {
    width: 100%;
    height: 8px;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-full);
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
}

.timeline-scrubber::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.timeline-labels {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    font-family: monospace;
}

/* ============================================================================
   Timelapse Sidebar
   ============================================================================ */

.timelapse-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.sidebar-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-lg);
}

.sidebar-card h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.sidebar-card h3 svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

/* ============================================================================
   Date List
   ============================================================================ */

.date-list {
    max-height: 200px;
    overflow-y: auto;
}

.date-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.date-item:hover {
    background: var(--color-surface-hover);
}

.date-item.active {
    background: rgba(99, 102, 241, 0.15);
    color: var(--color-accent);
}

.date-item .date-text {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.date-item .frame-count {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    background: var(--color-bg-elevated);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

/* ============================================================================
   Stats Grid
   ============================================================================ */

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--color-bg-elevated);
    border-radius: var(--radius-md);
}

.stat-value {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-accent);
}

.stat-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

/* ============================================================================
   Loading States
   ============================================================================ */

.loading-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
}

.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

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

/* ============================================================================
   Footer
   ============================================================================ */

.footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg) var(--spacing-xl);
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ============================================================================
   Responsive Adjustments
   ============================================================================ */

@media (max-width: 768px) {
    .header-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
    
    .section-header {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }
    
    .camera-controls {
        width: 100%;
    }
    
    .camera-controls .btn {
        flex: 1;
    }
    
    .preset-buttons {
        grid-template-columns: 1fr;
    }
    
    .playback-controls {
        flex-wrap: wrap;
    }
    
    .speed-control {
        margin-left: 0;
        margin-top: var(--spacing-md);
        padding-left: 0;
        padding-top: var(--spacing-md);
        border-left: none;
        border-top: 1px solid var(--color-border);
        width: 100%;
        justify-content: center;
    }
}

/* ============================================================================
   Utility Classes
   ============================================================================ */

.hidden { display: none !important; }
.visible { display: block !important; }