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

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --dark-gradient: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-light: rgba(255, 255, 255, 0.9);
    --text-muted: rgba(255, 255, 255, 0.7);
    
    --surface-light: rgba(255, 255, 255, 0.95);
    --surface-dark: rgba(0, 0, 0, 0.05);
    
    --border-radius: 20px;
    --border-radius-sm: 12px;
    --border-radius-lg: 24px;
    
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
}

body {
    font-family: var(--font-family);
    background: var(--primary-gradient);
    min-height: 100vh;
    padding: var(--spacing-md);
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--glass-shadow);
    overflow: hidden;
    position: relative;
}

.header {
    padding: var(--spacing-xl) var(--spacing-lg) var(--spacing-md);
    text-align: center;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-bold);
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.02em;
}

.header .subtitle {
    font-size: 1.1rem;
    font-weight: var(--font-weight-normal);
    color: var(--text-muted);
    opacity: 0.8;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
}

@media (min-width: 1024px) {
    .main-content {
        grid-template-columns: 2fr 1fr;
    }
}

.webcam-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.webcam-container {
    position: relative;
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: rgba(0, 0, 0, 0.8);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

#webcam {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
}

#overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    border-radius: var(--border-radius);
}

#canvas {
    display: none;
}

.controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn {
    position: relative;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family);
    font-size: 0.95rem;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    min-width: 140px;
    text-align: center;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-light);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: var(--secondary-gradient);
    color: var(--text-light);
    box-shadow: 0 4px 15px rgba(240, 147, 251, 0.3);
}

.btn-secondary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(240, 147, 251, 0.4);
}

.btn-accent {
    background: var(--accent-gradient);
    color: var(--text-light);
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.3);
}

.btn-accent:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 172, 254, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a52 100%);
    color: var(--text-light);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.btn-danger:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
}

.btn:disabled {
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.4);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn:disabled::before {
    display: none;
}

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

.info-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.info-card h3 {
    font-size: 1.2rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.info-card p {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

.info-card p:last-child {
    margin-bottom: 0;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: var(--font-weight-medium);
}

.status-success {
    background: rgba(46, 204, 113, 0.2);
    color: #2ecc71;
    border: 1px solid rgba(46, 204, 113, 0.3);
}

.status-warning {
    background: rgba(241, 196, 15, 0.2);
    color: #f1c40f;
    border: 1px solid rgba(241, 196, 15, 0.3);
}

.status-error {
    background: rgba(231, 76, 60, 0.2);
    color: #e74c3c;
    border: 1px solid rgba(231, 76, 60, 0.3);
}

.status-indicator::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.photo-gallery {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.photo-gallery h3 {
    font-size: 1.4rem;
    font-weight: var(--font-weight-semibold);
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.photo-item {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.photo-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.2);
}

.photo-item img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-sm);
}

.photo-item .timestamp {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.photo-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.photo-actions .btn {
    flex: 1;
    min-width: auto;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
}

.emoji-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 1000;
    overflow: hidden;
}

.floating-emoji {
    position: absolute;
    font-size: 2rem;
    animation: float 3s ease-in-out infinite;
    pointer-events: none;
}

.error-message {
    background: rgba(231, 76, 60, 0.1);
    border: 1px solid rgba(231, 76, 60, 0.3);
    color: #e74c3c;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-sm);
    margin: var(--spacing-md);
    text-align: center;
    backdrop-filter: blur(10px);
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes rainbow {
    0% { filter: hue-rotate(0deg); }
    100% { filter: hue-rotate(360deg); }
}

@keyframes zoom {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Chaotic Mode Styles */
.chaos-angry {
    background: linear-gradient(45deg, #ff4444, #cc0000) !important;
    animation: shake 0.5s infinite;
    filter: contrast(1.5);
}

.chaos-happy {
    background: linear-gradient(45deg, #ffeb3b, #ff9800) !important;
    animation: bounce 1s infinite, rainbow 2s infinite;
}

.chaos-surprised {
    animation: zoom 0.5s infinite;
    filter: brightness(1.5) contrast(1.2);
}

.chaos-sad {
    background: linear-gradient(45deg, #2196f3, #0d47a1) !important;
    filter: blur(1px) grayscale(0.5);
    animation: pulse 2s infinite;
}

.chaos-fearful {
    background: linear-gradient(45deg, #9c27b0, #4a148c) !important;
    animation: shake 0.3s infinite;
    filter: invert(0.2) sepia(0.5);
}

.chaos-disgusted {
    background: linear-gradient(45deg, #4caf50, #1b5e20) !important;
    filter: hue-rotate(90deg) saturate(2);
    animation: spin 3s infinite;
}

.chaos-neutral {
    filter: grayscale(0.3);
    animation: pulse 3s infinite;
}

.button-chaos {
    animation: spin 2s infinite;
    transform-origin: center;
}

.button-bounce {
    animation: bounce 1s infinite;
}

.button-shake {
    animation: shake 0.5s infinite;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    body {
        padding: var(--spacing-sm);
    }
    
    .header {
        padding: var(--spacing-lg) var(--spacing-md) var(--spacing-sm);
    }
    
    .main-content {
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    .controls {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        min-width: auto;
    }
    
    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .photo-gallery {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.8rem;
    }
    
    .header .subtitle {
        font-size: 1rem;
    }
    
    .info-card {
        padding: var(--spacing-sm);
    }
    
    .photo-grid {
        grid-template-columns: 1fr 1fr;
    }
}