/* QR Future - 미래지향적 디자인 CSS */

/* CSS Variables for Theme Management */
:root {
    /* Light Theme Colors - 가독성 개선 */
    --primary-bg: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    --secondary-bg: rgba(255, 255, 255, 0.9);
    --glass-bg: rgba(255, 255, 255, 0.85);
    --text-primary: #1a202c;
    --text-secondary: #2d3748;
    --text-accent: #4c51bf;
    --border-color: rgba(0, 0, 0, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.15);
    --glow-color: #4c51bf;
    --success-color: #38a169;
    --error-color: #e53e3e;
    --warning-color: #d69e2e;

    /* Spacing & Sizing */
    --border-radius: 20px;
    --border-radius-sm: 12px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Animations */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Dark Theme */
[data-theme="dark"] {
    --primary-bg: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    --secondary-bg: rgba(0, 0, 0, 0.3);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --text-accent: #90cdf4;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --glow-color: #90cdf4;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* Background Effects */
.bg-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

/* Animated Particles */
.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(255, 255, 255, 0.2), transparent),
        radial-gradient(1px 1px at 90px 40px, rgba(255, 255, 255, 0.4), transparent),
        radial-gradient(1px 1px at 130px 80px, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(2px 2px at 160px 30px, rgba(255, 255, 255, 0.2), transparent);
    background-repeat: repeat;
    background-size: 200px 100px;
    animation: particleFloat 20s linear infinite;
}

@keyframes particleFloat {
    0% { transform: translateY(0px) rotate(0deg); }
    100% { transform: translateY(-100px) rotate(360deg); }
}

/* Grid Overlay */
.grid-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 30s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

/* Gradient Orbs */
.gradient-orbs {
    position: absolute;
    width: 100%;
    height: 100%;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.6;
    animation: orbFloat 15s ease-in-out infinite;
}

.orb-1 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #667eea, #764ba2);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, #f093fb, #f5576c);
    top: 60%;
    right: 10%;
    animation-delay: 5s;
}

.orb-3 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, #4facfe, #00f2fe);
    bottom: 20%;
    left: 50%;
    animation-delay: 10s;
}

@keyframes orbFloat {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-30px) scale(1.1); }
}

/* App Container */
.app-container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    padding: var(--spacing-md);
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
.app-header {
    margin-bottom: var(--spacing-xl);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px var(--shadow-color);
}

.app-title h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--glow-color), #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

/* 다크 모드에서는 일반 색상 사용 */
[data-theme="dark"] .app-title h1 {
    background: none;
    -webkit-background-clip: initial;
    -webkit-text-fill-color: initial;
    background-clip: initial;
    color: var(--text-primary);
    text-shadow: 0 2px 4px var(--shadow-color);
}

@keyframes titleGlow {
    0% { filter: drop-shadow(0 0 10px var(--glow-color)); }
    100% { filter: drop-shadow(0 0 20px var(--glow-color)); }
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 400;
}

/* Simple Theme Toggle */
.simple-theme-btn {
    padding: 8px 16px;
    background: var(--glass-bg);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
}

.simple-theme-btn:hover {
    background: var(--glow-color);
    color: white;
    transform: scale(1.05);
}

/* Tab Navigation */
.tab-nav {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-sm);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px var(--shadow-color);
}

.tab-btn {
    position: relative;
    flex: 1;
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    overflow: hidden;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

.tab-btn.active {
    color: var(--glow-color);
    background: var(--glass-bg);
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
}

.tab-btn i {
    font-size: 1.2rem;
}

.tab-indicator {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--glow-color), #f093fb);
    border-radius: 2px;
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

.tab-btn.active .tab-indicator {
    width: 80%;
}

/* Tab Content */
.tab-content {
    position: relative;
}

.tab-panel {
    display: none;
    animation: fadeInUp 0.5s ease;
}

.tab-panel.active {
    display: block !important;
}

/* QR 스캔 탭이 활성화되었을 때 QR 생성 관련 요소 완전히 숨김 */
body:has(#scan-tab[style*="display: block"]) #generate-tab,
body:has(.tab-btn[data-tab="scan"].active) #generate-tab {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    position: absolute !important;
    left: -9999px !important;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Panel Grid */
.panel-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

/* Scan Container */
.scan-container {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 400px;
}

.scan-card {
    width: 100%;
    max-width: 600px;
}

/* Glass Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: 0 8px 32px var(--shadow-color);
    overflow: hidden;
    transition: var(--transition-normal);
    position: relative;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px var(--shadow-color);
    border-color: var(--glow-color);
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: var(--transition-slow);
}

.glass-card:hover::before {
    left: 100%;
}

.card-header {
    padding: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
    background: rgba(255, 255, 255, 0.3);
}

.card-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.card-header i {
    color: var(--glow-color);
}

.card-body {
    padding: var(--spacing-md);
}

/* Form Styles */
.qr-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--spacing-sm);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.input-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* 다크 모드에서 레이블 가독성 개선 */
[data-theme="dark"] .input-group label {
    color: rgba(255, 255, 255, 0.8);
}

.input-wrapper {
    position: relative;
}

.input-wrapper input {
    width: 100%;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition-normal);
}

/* 다크 모드에서 입력 필드 가독성 개선 */
[data-theme="dark"] .input-wrapper input {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .input-wrapper input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--glow-color);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

/* 다크 모드에서 포커스 효과 강화 */
[data-theme="dark"] .input-wrapper input:focus {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 20px rgba(144, 205, 244, 0.4);
}

.input-glow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: var(--border-radius-sm);
    background: linear-gradient(45deg, var(--glow-color), #f093fb);
    opacity: 0;
    z-index: -1;
    transition: var(--transition-normal);
}

.input-wrapper input:focus + .input-glow {
    opacity: 0.2;
}

/* Custom Select */
.custom-select {
    width: 100%;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-normal);
}

/* 다크 모드에서 select 가독성 개선 */
[data-theme="dark"] .custom-select {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .custom-select option {
    background: #2d3748;
    color: #ffffff;
}

.custom-select:focus {
    outline: none;
    border-color: var(--glow-color);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

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

.color-picker input[type="color"] {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    background: transparent;
}

.color-preview {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
}

/* Generate Button */
.generate-btn {
    position: relative;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--glow-color), #f093fb);
    border: none;
    border-radius: var(--border-radius-sm);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    overflow: hidden;
    transition: var(--transition-normal);
    margin-top: var(--spacing-sm);
}

.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.generate-btn:active {
    transform: translateY(0);
}

.btn-text {
    position: relative;
    z-index: 2;
}

.btn-glow {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: var(--transition-slow);
}

.generate-btn:hover .btn-glow {
    left: 100%;
}

.btn-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 1px, transparent 1px);
    background-size: 10px 10px;
    opacity: 0;
    animation: particleSparkle 2s ease-in-out infinite;
}

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

/* QR Preview */
.qr-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-normal);
}

.qr-preview.has-qr {
    border-style: solid;
    border-color: var(--glow-color);
    background: rgba(255, 255, 255, 0.02);
}

.preview-placeholder {
    text-align: center;
    color: var(--text-secondary);
}

.preview-placeholder i {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.5;
}

.qr-preview canvas {
    max-width: 100%;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

/* Download Section */
.download-section {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.download-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.download-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.download-btn:hover {
    background: var(--glow-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

/* Camera Styles */
.camera-container {
    position: relative;
    width: 100%;
    height: 300px;
    background: #000;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

.camera-video,
.camera-canvas {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.camera-canvas {
    position: absolute;
    top: 0;
    left: 0;
}

/* Scan Overlay */
.scan-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scan-frame {
    position: relative;
    width: 200px;
    height: 200px;
    border: 2px solid var(--glow-color);
    border-radius: var(--border-radius-sm);
}

.corner {
    position: absolute;
    width: 20px;
    height: 20px;
    border: 3px solid var(--glow-color);
}

.corner-tl {
    top: -3px;
    left: -3px;
    border-right: none;
    border-bottom: none;
}

.corner-tr {
    top: -3px;
    right: -3px;
    border-left: none;
    border-bottom: none;
}

.corner-bl {
    bottom: -3px;
    left: -3px;
    border-right: none;
    border-top: none;
}

.corner-br {
    bottom: -3px;
    right: -3px;
    border-left: none;
    border-top: none;
}

.scan-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--glow-color), transparent);
    animation: scanAnimation 2s ease-in-out infinite;
}

@keyframes scanAnimation {
    0% { transform: translateY(0); opacity: 1; }
    50% { opacity: 0.5; }
    100% { transform: translateY(196px); opacity: 1; }
}

/* Camera Controls */
.camera-controls {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-md);
}

.camera-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--success-color), #38a169);
    border: none;
    border-radius: var(--border-radius-sm);
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.camera-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(72, 187, 120, 0.4);
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-xl);
    text-align: center;
    transition: var(--transition-normal);
    cursor: pointer;
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--glow-color);
    background: rgba(102, 126, 234, 0.05);
    transform: scale(1.02);
}

.drop-content i {
    font-size: 3rem;
    color: var(--glow-color);
    margin-bottom: var(--spacing-sm);
}

.drop-content h4 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

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

.upload-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--glow-color);
    border: none;
    border-radius: var(--border-radius-sm);
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-normal);
    margin: var(--spacing-sm) auto 0 auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    justify-content: center;
}

.upload-btn i {
    color: white !important;
    font-size: 3rem;
}

.upload-btn:hover {
    background: #5a67d8;
    transform: translateY(-2px);
}

.upload-btn:hover i {
    color: white !important;
}

/* Scan Result */
.scan-result {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(72, 187, 120, 0.1);
    border: 1px solid var(--success-color);
    border-radius: var(--border-radius-sm);
}

.result-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.result-header h4 {
    color: var(--success-color);
    font-size: 1.1rem;
}

.result-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.result-text {
    flex: 1;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    word-break: break-all;
}

.copy-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--success-color);
    border: none;
    border-radius: var(--border-radius-sm);
    color: white;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 4px;
}

.copy-btn:hover {
    background: #38a169;
    transform: scale(1.05);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-content {
    text-align: center;
    color: white;
}

.loading-spinner {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
}

.spinner-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top: 3px solid var(--glow-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.spinner-ring:nth-child(2) {
    width: 60px;
    height: 60px;
    top: 10px;
    left: 10px;
    border-top-color: #f093fb;
    animation-delay: 0.1s;
}

.spinner-ring:nth-child(3) {
    width: 40px;
    height: 40px;
    top: 20px;
    left: 20px;
    border-top-color: #4facfe;
    animation-delay: 0.2s;
}

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

.loading-text {
    font-size: 1.1rem;
    font-weight: 500;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    padding: var(--spacing-md);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    box-shadow: 0 8px 32px var(--shadow-color);
    transform: translateX(100%);
    transition: var(--transition-normal);
    max-width: 300px;
}

.toast.show {
    transform: translateX(0);
}

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

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .app-container {
        padding: var(--spacing-sm);
    }

    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .app-title h1 {
        font-size: 2rem;
    }

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

    .tab-nav {
        flex-direction: column;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .download-buttons {
        flex-direction: column;
    }

    .camera-container {
        height: 250px;
    }

    .scan-frame {
        width: 150px;
        height: 150px;
    }
}

@media (max-width: 480px) {
    .app-title h1 {
        font-size: 1.5rem;
    }

    .tab-btn {
        padding: var(--spacing-sm);
        font-size: 0.9rem;
    }

    .glass-card {
        margin: 0 -var(--spacing-xs);
    }

    .camera-container {
        height: 200px;
    }

    .scan-frame {
        width: 120px;
        height: 120px;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: rgba(255, 255, 255, 0.5);
        --glass-bg: rgba(255, 255, 255, 0.2);
    }

    [data-theme="dark"] {
        --border-color: rgba(255, 255, 255, 0.3);
        --glass-bg: rgba(255, 255, 255, 0.1);
    }
}

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

    .particles,
    .grid-overlay,
    .orb {
        animation: none;
    }
}

/* Print Styles */
@media print {
    .bg-effects,
    .theme-toggle,
    .tab-nav,
    .camera-container,
    .loading-overlay,
    .toast-container {
        display: none !important;
    }

    .app-container {
        background: white;
        color: black;
    }

    .glass-card {
        background: white;
        border: 1px solid #ccc;
        box-shadow: none;
    }
}