/**
 * ESP32 WebRTC Camera - Styles
 * Modern, responsive UI for camera streaming
 */

/* CSS Variables */
:root {
    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-primary-light: #60a5fa;
    --color-secondary: #6b7280;
    --color-secondary-hover: #4b5563;
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;
    --color-warning: #f59e0b;
    
    --color-bg: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;
    --color-surface: #1e293b;
    --color-surface-hover: #334155;
    
    --color-text: #f8fafc;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    
    --color-border: #334155;
    --color-border-hover: #475569;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    min-height: 100vh;
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.header {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1600px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

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

.logo-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.header-status {
    display: flex;
    gap: 1.5rem;
}

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

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-text-muted);
    transition: background-color var(--transition-normal);
}

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

.status-item.disconnected .status-dot {
    background-color: var(--color-danger);
}

.status-item.connecting .status-dot {
    background-color: var(--color-warning);
    animation: pulse 1.5s infinite;
}

.status-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* Main Content */
.main-content {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 1.5rem;
    padding: 1.5rem;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

/* Video Section */
.video-section {
    display: flex;
    flex-direction: column;
}

.video-container {
    position: relative;
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    box-shadow: var(--shadow-lg);
}

.video-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--color-text-secondary);
}

.video-placeholder svg {
    width: 80px;
    height: 80px;
    opacity: 0.5;
}

.video-placeholder p {
    font-size: 1.125rem;
}

#video-canvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.video-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1rem;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.5) 0%,
        transparent 30%,
        transparent 70%,
        rgba(0, 0, 0, 0.5) 100%
    );
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.video-container:hover .video-overlay {
    opacity: 1;
}

.video-overlay > * {
    pointer-events: auto;
}

.video-info {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.video-info span {
    background-color: rgba(0, 0, 0, 0.6);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
}

.video-controls {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
}

.video-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.6);
    border: none;
    border-radius: 50%;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.video-btn:hover {
    background-color: var(--color-primary);
    transform: scale(1.1);
}

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

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

.recording-indicator {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--color-danger);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
}

.rec-dot {
    width: 10px;
    height: 10px;
    background-color: white;
    border-radius: 50%;
    animation: pulse 1s infinite;
}

/* Controls Section */
.controls-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    overflow-y: auto;
    max-height: calc(100vh - 180px);
}

/* Panel */
.panel {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
}

.panel-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.panel-title svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

/* Telemetry Grid */
.telemetry-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.telemetry-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.75rem;
    background-color: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
}

.telemetry-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.telemetry-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

/* Control Groups */
.control-group {
    margin-bottom: 1rem;
}

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

.control-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.control-select {
    width: 100%;
    padding: 0.625rem 1rem;
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.control-select:hover,
.control-select:focus {
    border-color: var(--color-primary);
    outline: none;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.control-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background-color: var(--color-bg-tertiary);
    border-radius: 3px;
    cursor: pointer;
}

.control-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background-color: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.control-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.control-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background-color: var(--color-primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

.slider-value {
    min-width: 40px;
    text-align: right;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

/* LED Controls */
.led-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.led-toggle-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.toggle-switch {
    position: relative;
    width: 52px;
    height: 28px;
}

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

.toggle-slider {
    position: absolute;
    inset: 0;
    background-color: var(--color-bg-tertiary);
    border-radius: 14px;
    cursor: pointer;
    transition: background-color var(--transition-normal);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    left: 3px;
    bottom: 3px;
    background-color: var(--color-text);
    border-radius: 50%;
    transition: transform var(--transition-normal);
}

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

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

.led-status {
    font-weight: 600;
    color: var(--color-text-secondary);
}

.led-status.on {
    color: var(--color-success);
}

/* Actions Grid */
.actions-grid {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    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-color: var(--color-primary);
    color: white;
}

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

.btn-secondary {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

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

/* Flip Buttons */
.flip-buttons {
    display: flex;
    gap: 0.5rem;
}

.flip-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
}

.flip-btn svg {
    width: 16px;
    height: 16px;
}

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

.flip-btn.active:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

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

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

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

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    z-index: 1000;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background-color: var(--color-surface);
    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: 4px solid var(--color-success);
}

.toast.error {
    border-left: 4px solid var(--color-danger);
}

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

.toast.info {
    border-left: 4px solid var(--color-primary);
}

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

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

/* Responsive */
@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .controls-section {
        max-height: none;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 1rem;
    }
    
    .controls-section {
        grid-template-columns: 1fr;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .telemetry-grid {
        grid-template-columns: 1fr;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-border-hover);
}