/* CSS Variables for Facebook 2025 Design System */
:root {
    /* Light Theme Colors */
    --primary-blue: #1877f2;
    --primary-blue-hover: #166fe5;
    --primary-blue-light: #e7f3ff;
    --secondary-green: #42b883;
    --secondary-green-hover: #369870;
    --accent-purple: #8b5cf6;
    --accent-orange: #f59e0b;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* Background & Surface */
    --bg-primary: var(--white);
    --bg-secondary: var(--gray-50);
    --surface: var(--white);
    --surface-elevated: var(--white);
    
    /* Text Colors */
    --text-primary: var(--gray-900);
    --text-secondary: var(--gray-600);
    --text-tertiary: var(--gray-500);
    --text-inverse: var(--white);
    
    /* Border & Divider */
    --border-light: var(--gray-200);
    --border-medium: var(--gray-300);
    --divider: var(--gray-200);
    
    /* 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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 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: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: var(--gray-900);
    --bg-secondary: var(--gray-800);
    --surface: var(--gray-800);
    --surface-elevated: var(--gray-700);
    
    --text-primary: var(--white);
    --text-secondary: var(--gray-300);
    --text-tertiary: var(--gray-400);
    
    --border-light: var(--gray-700);
    --border-medium: var(--gray-600);
    --divider: var(--gray-700);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color var(--transition-normal), color var(--transition-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}



/* App Container */
.app-container {
    min-height: 100vh;
    background: var(--bg-primary);
    transition: background-color var(--transition-normal);
}

/* Header */
.app-header {
    background: var(--surface);
    border-bottom: 1px solid var(--divider);
    padding: var(--space-4) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.8);
}

[data-theme="dark"] .app-header {
    background: rgba(15, 23, 42, 0.8);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-section {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-purple));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

.brand-icon svg {
    width: 20px;
    height: 20px;
    stroke: white;
    stroke-width: 2;
}

.brand-text h1 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.brand-text p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--success);
    color: white;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.status-dot {
    width: 6px;
    height: 6px;
    background: white;
    border-radius: var(--radius-full);
    animation: pulse 2s infinite;
}

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

/* Main Content */
.main-content {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-8) var(--space-6);
}

/* Winner Card */
.winner-card {
    background: var(--surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-xl);
    margin-bottom: var(--space-8);
    transition: all var(--transition-normal);
}

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

/* Card Header */
.card-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.celebration-icons {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.celebration-icon {
    width: 32px;
    height: 32px;
    stroke: var(--accent-orange);
    fill: var(--accent-orange);
    stroke-width: 2;
    animation: celebrationFloat 3s ease-in-out infinite;
}

.celebration-icon:nth-child(2) {
    animation-delay: 1.5s;
}

@keyframes celebrationFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-10px) rotate(5deg); }
    75% { transform: translateY(-5px) rotate(-5deg); }
}

.winner-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
    background: linear-gradient(135deg, var(--primary-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.winner-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    font-weight: 500;
}

/* Tiny House Image Section */
.tiny-house-section {
    background: var(--surface);
    border-radius: var(--radius-2xl);
    padding: var(--space-6);
    margin: var(--space-6) 0;
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-md);
}

.tiny-house-section h3 {
    margin: 0 0 var(--space-5) 0;
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    font-weight: 600;
    text-align: center;
}

.tiny-house-image {
    position: relative;
    width: 100%;
    height: 300px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    border: 2px solid var(--border-light);
    box-shadow: var(--shadow-lg);
}

.house-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all var(--transition-normal);
}

.house-image:hover {
    transform: scale(1.05);
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: var(--space-6);
    color: white;
    transform: translateY(100%);
    transition: all var(--transition-normal);
}

.tiny-house-image:hover .image-overlay {
    transform: translateY(0);
}

.overlay-content h4 {
    margin: 0 0 var(--space-2) 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.overlay-content p {
    margin: 0;
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* Sponsor Section */
.sponsor-section {
    text-align: center;
    margin: var(--space-6) 0;
    padding: var(--space-4);
    background: rgba(24, 119, 242, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(24, 119, 242, 0.1);
}

.sponsor-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0 0 var(--space-2) 0;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.meta-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
}

.meta-logo svg {
    width: 32px;
    height: 32px;
    transition: transform 0.2s ease;
}

.meta-logo:hover svg {
    transform: scale(1.05);
}

.meta-logo span {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: #1877F2;
    font-family: 'Inter', system-ui, sans-serif;
}

/* Simple Countdown Section */
.countdown-section {
    background: linear-gradient(135deg, #ff4757 0%, #ff3742 100%);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    margin: var(--space-6) 0;
    color: white;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.countdown-section h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0 0 var(--space-3) 0;
    color: white;
}

.countdown-display {
    font-size: 2.5rem;
    font-weight: 800;
    font-family: 'Inter', monospace;
    color: white;
    margin: var(--space-2) 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: 2px;
}

.countdown-text {
    font-size: var(--font-size-sm);
    margin: var(--space-2) 0 0 0;
    opacity: 0.9;
    font-weight: 500;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .countdown-section {
        padding: var(--space-4);
        margin: var(--space-4) 0;
    }
    
    .countdown-display {
        font-size: 2rem;
        letter-spacing: 1px;
    }
    
    .countdown-section h3 {
        font-size: var(--font-size-base);
    }
}

/* Surprise Animation */
.surprise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4, #45b7d1, #96ceb4, #feca57);
    background-size: 400% 400%;
    animation: gradientShift 2s ease infinite;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.surprise-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

.surprise-content {
    text-align: center;
    color: white;
    animation: bounceIn 1s ease;
}

.surprise-emoji {
    font-size: 4rem;
    animation: rotate 2s linear infinite;
    margin-bottom: 1rem;
}

.surprise-text {
    font-size: 2rem;
    font-weight: 800;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    margin: 0;
}

.surprise-subtext {
    font-size: 1.2rem;
    margin: 0.5rem 0 0 0;
    opacity: 0.9;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes bounceIn {
    0% {
        transform: scale(0.3);
        opacity: 0;
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

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

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-2px); }
    20%, 40%, 60%, 80% { transform: translateX(2px); }
}

.time-label {
    display: block;
    font-size: var(--font-size-sm);
    opacity: 0.9;
    margin-top: var(--space-2);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.time-separator {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: white;
    animation: blink 1s infinite;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

.urgency-message {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: var(--space-3) var(--space-5);
    border-radius: 25px;
    font-weight: 700;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    margin: 0 auto;
    max-width: fit-content;
    position: relative;
    z-index: 1;
}

.warning-icon {
    width: 22px;
    height: 22px;
    stroke: #ffd700;
    stroke-width: 2;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* Gift Section */
.gift-section {
    text-align: center;
    margin-bottom: var(--space-8);
}

.gift-box {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto var(--space-4);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.gift-box:hover {
    transform: scale(1.1) rotate(5deg);
}

.gift-body {
    width: 100px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-purple), var(--primary-blue));
    border-radius: var(--radius-lg);
    position: absolute;
    bottom: 0;
    left: 10px;
    box-shadow: var(--shadow-lg);
}

.gift-lid {
    width: 110px;
    height: 25px;
    background: linear-gradient(135deg, var(--error), var(--warning));
    border-radius: var(--radius-lg);
    position: absolute;
    top: 15px;
    left: 5px;
    box-shadow: var(--shadow-md);
    transition: transform 0.5s ease;
}

.gift-ribbon-v {
    width: 15px;
    height: 120px;
    background: linear-gradient(to bottom, var(--accent-orange), var(--warning));
    position: absolute;
    left: 52.5px;
    top: 0;
    border-radius: var(--radius-sm);
}

.gift-ribbon-h {
    width: 120px;
    height: 15px;
    background: linear-gradient(to right, var(--accent-orange), var(--warning));
    position: absolute;
    top: 52.5px;
    left: 0;
    border-radius: var(--radius-sm);
}

.gift-box.opened .gift-lid {
    transform: translateY(-30px) rotateX(-45deg);
}

.gift-sparkles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.gift-instruction {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    font-weight: 500;
}

/* Action Section */
.action-section {
    text-align: center;
    margin-bottom: var(--space-8);
}

.claim-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-8);
    background: linear-gradient(135deg, var(--error), var(--warning));
    color: white;
    border: none;
    border-radius: var(--radius-full);
    font-size: var(--font-size-lg);
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: buttonPulse 2s infinite;
}

.claim-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-2xl);
    animation: none;
}

.claim-btn:active {
    transform: translateY(-1px);
}

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

.btn-icon {
    width: 24px;
    height: 24px;
    stroke-width: 2;
}

.btn-shimmer {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Social Proof */
.social-proof {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    padding: var(--space-6);
    background: var(--surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.social-proof-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-8);
}

.participants-count,
.verification-badge {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-secondary);
}

.participants-count svg,
.verification-badge svg {
    width: 18px;
    height: 18px;
    stroke: var(--success);
    stroke-width: 2;
}

/* Facebook Embed Section */
.facebook-embed-section {
    text-align: center;
    margin-top: var(--space-4);
}

.facebook-embed-section h4 {
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--space-4);
    text-align: center;
}

.facebook-embed-section iframe {
    max-width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

/* Mobile responsive for Facebook embed */
@media (max-width: 768px) {
    .facebook-embed-section iframe {
        width: 100% !important;
        height: 500px !important;
        max-width: 100%;
    }
    
    .social-proof {
        padding: var(--space-4);
    }
    
    .social-proof-stats {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.modal-overlay.active {
    display: flex;
}

.modal-container {
    background: var(--surface);
    border-radius: var(--radius-2xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-2xl);
    animation: modalSlideIn 0.3s ease-out;
    border: 1px solid var(--border-light);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    padding: var(--space-6) var(--space-6) 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    color: var(--text-secondary);
}

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

.modal-close svg {
    width: 24px;
    height: 24px;
    stroke-width: 2;
}

.modal-body {
    padding: var(--space-6);
    text-align: center;
}

.modal-icon {
    margin-bottom: var(--space-4);
}

.modal-icon svg {
    width: 80px;
    height: 80px;
    stroke: var(--primary-blue);
    stroke-width: 1.5;
}

.modal-body h4 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.modal-body p {
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
    line-height: 1.6;
}

.verification-section {
    margin-top: var(--space-6);
}

.verification-text {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.verification-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--success);
    color: white;
    text-decoration: none;
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-full);
    font-weight: 600;
    margin-bottom: var(--space-4);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
}

.verification-btn:hover {
    background: var(--secondary-green-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.verification-btn svg {
    width: 18px;
    height: 18px;
    stroke-width: 2;
}

.urgent-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    font-weight: 600;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.urgent-notice svg {
    width: 16px;
    height: 16px;
    stroke-width: 2;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .header-content {
        padding: 0 var(--space-4);
    }
    
    .main-content {
        padding: var(--space-6) var(--space-4);
    }
    
    .winner-card {
        padding: var(--space-6);
        margin-bottom: var(--space-6);
    }
    
    .winner-title {
        font-size: var(--font-size-3xl);
    }
    
    .winner-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .image-placeholder {
        height: 250px;
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .countdown-timer {
        flex-direction: column;
        gap: var(--space-3);
    }
    
    .time-block {
        min-width: 120px;
    }
    
    .time-separator {
        display: none;
    }
    
    .social-proof {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
    
    .modal-container {
        width: 95%;
        margin: var(--space-4);
    }
    
    .theme-toggle {
        top: var(--space-4);
        right: var(--space-4);
        width: 44px;
        height: 44px;
    }
}

@media (max-width: 480px) {
    .brand-text h1 {
        font-size: var(--font-size-base);
    }
    
    .brand-text p {
        font-size: var(--font-size-xs);
    }
    
    .winner-title {
        font-size: var(--font-size-2xl);
    }
    
    .winner-subtitle {
        font-size: var(--font-size-base);
    }
    
    .image-placeholder {
        height: 200px;
    }
    
    .prize-value {
        flex-direction: column;
        gap: 0;
    }
    
    .amount {
        font-size: var(--font-size-4xl);
    }
    
    .time-value {
        font-size: var(--font-size-2xl);
    }
    
    .claim-btn {
        padding: var(--space-3) var(--space-6);
        font-size: var(--font-size-base);
    }
    
    .gift-box {
        width: 100px;
        height: 100px;
    }
    
    .gift-body {
        width: 85px;
        height: 70px;
        left: 7.5px;
    }
    
    .gift-lid {
        width: 95px;
        left: 2.5px;
    }
}

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

/* Focus styles for accessibility */
.claim-btn:focus,
.load-image-btn:focus,
.verification-btn:focus,
.theme-toggle:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px var(--primary-blue-light);
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border-light: #000000;
        --border-medium: #000000;
        --text-secondary: #000000;
    }
    
    [data-theme="dark"] {
        --border-light: #ffffff;
        --border-medium: #ffffff;
        --text-secondary: #ffffff;
    }
}