:root {
    /* Color Palette - Modern Blue Theme */
    --primary-color: #4361ee;
    --primary-light: #4895ef;
    --primary-lighter: #4cc9f0;
    --primary-dark: #3a0ca3;
    --primary-gradient: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    
    --success-color: #4ade80;
    --warning-color: #fbbf24;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    
    /* Light Mode Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --border-color: #e2e8f0;
    --card-bg: #ffffff;
    --card-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    --input-bg: #f8fafc;
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.18);
    
    /* Gray Scale */
    --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;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 32px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.2);
    --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --border-color: #475569;
    --card-bg: #1e293b;
    --card-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    --input-bg: #334155;
    --glass-bg: rgba(30, 41, 59, 0.5);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    --gray-50: #0f172a;
    --gray-100: #1e293b;
    --gray-200: #334155;
    --gray-300: #475569;
    --gray-400: #64748b;
    --gray-500: #94a3b8;
    --gray-600: #cbd5e1;
    --gray-700: #e2e8f0;
    --gray-800: #f1f5f9;
    --gray-900: #ffffff;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color var(--transition-normal), 
                border-color var(--transition-normal),
                color var(--transition-normal);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-normal);
    overflow-x: auto;
}

/* Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(var(--primary-color) 1px, transparent 1px),
        radial-gradient(var(--primary-light) 1px, transparent 1px);
    background-size: 40px 40px;
    background-position: 0 0, 20px 20px;
    opacity: 0.05;
    z-index: -1;
    pointer-events: none;
}

[data-theme="dark"] body::before {
    opacity: 0.03;
    background-image: 
        radial-gradient(var(--primary-lighter) 1px, transparent 1px),
        radial-gradient(var(--primary-light) 0.5px, transparent 0.5px);
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.theme-toggle:hover {
    transform: rotate(15deg) scale(1.1);
    box-shadow: var(--shadow-lg);
}

.theme-toggle i {
    font-size: 1.25rem;
    color: var(--text-primary);
}

/* Main Container */
.encrypt-container {
    max-width: none;
    margin: 0 auto;
    padding: var(--spacing-xl);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    overflow-x: visible;
    width: 100%;
}

/* Header */
.header {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-xl);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: var(--primary-gradient);
    opacity: 0.05;
    z-index: -1;
}

[data-theme="dark"] .header::before {
    opacity: 0.03;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.header h1 i {
    font-size: 2.2rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

/* Input Section */
.input-section {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
    max-width: 100%;
}

.input-section.active {
    border-color: var(--primary-color);
    box-shadow: var(--card-shadow), 0 0 0 4px rgba(67, 97, 238, 0.1);
    transform: translateY(-2px);
}

.input-section h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.input-section h3 i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* URL Input */
.url-input {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1rem;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--input-bg);
    color: var(--text-primary);
    transition: all var(--transition-normal);
    outline: none;
}

.url-input:hover {
    border-color: var(--gray-300);
    background: var(--bg-tertiary);
}

.url-input:focus {
    border-color: var(--primary-color);
    background: var(--input-bg);
    box-shadow: 0 0 0 4px rgba(67, 97, 238, 0.15);
    transform: translateY(-1px);
}

.url-input::placeholder {
    color: var(--text-tertiary);
    font-weight: 400;
}

/* Validation Status */
.validation-status {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: none;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.validation-status.valid {
    display: flex;
    background: rgba(74, 222, 128, 0.1);
    color: #059669;
    border: 1px solid rgba(74, 222, 128, 0.2);
}

.validation-status.invalid {
    display: flex;
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.validation-status i {
    font-size: 1.1rem;
}

/* Result Section */
.result-section {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--card-shadow);
    border: 2px solid transparent;
    display: none;
    animation: fadeInUp 0.4s ease-out;
    width: 100%;
    overflow: visible;
}

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

.result-section.active {
    display: block;
    border-color: var(--primary-color);
    box-shadow: var(--card-shadow), 0 0 0 4px rgba(67, 97, 238, 0.1);
}

.result-section h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.result-section h3 i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* Encrypted Output */
.encrypted-output {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--card-bg) 100%);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--border-color);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.95rem;
    color: var(--text-secondary);
    word-break: break-all;
    max-height: 240px;
    overflow: auto;
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

[data-theme="dark"] .encrypted-output {
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--card-bg) 100%);
}

.encrypted-output::before {
    content: '🔐';
    position: absolute;
    top: -12px;
    right: -12px;
    background: var(--card-bg);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.btn-primary, .btn-secondary {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: none;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-normal);
    flex: 1;
    min-width: 180px;
    letter-spacing: -0.01em;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 12px rgba(67, 97, 238, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(67, 97, 238, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(67, 97, 238, 0.3);
}

.btn-secondary {
    background: var(--card-bg);
    color: var(--primary-color);
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

button i {
    font-size: 1.1rem;
}

/* QR Container */
.qr-container {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 2px solid var(--border-color);
    display: none;
    overflow: visible;
    position: relative;
    margin-top: var(--spacing-lg);
    width: 100%;
    min-width: min-content;
}

.qr-container.active {
    display: block;
    animation: qrContainerAppear 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes qrContainerAppear {
    0% {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    70% {
        opacity: 1;
        transform: scale(1.02) translateY(-5px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* QR Container Header - CENTERED */
.qr-container h4 {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
}

.qr-container h4 i {
    color: var(--primary-color);
    font-size: 1.4rem;
}

/* QR Size Control */
.qr-size-control {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    width: 100%;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.qr-size-control label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.qr-size-control label i {
    color: var(--primary-color);
}

#qrSizeValue {
    font-weight: 700;
    color: var(--primary-color);
    background: var(--bg-tertiary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    min-width: 70px;
    text-align: center;
    font-family: 'Monaco', 'Menlo', monospace;
}

/* Custom Slider Styling */
#qrSizeSlider {
    -webkit-appearance: none;
    width: 100%;
    height: 12px;
    background: linear-gradient(to right, var(--primary-light), var(--primary-color));
    border-radius: var(--radius-full);
    outline: none;
    margin: var(--spacing-md) 0;
    cursor: pointer;
}

#qrSizeSlider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid white;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

#qrSizeSlider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--shadow-lg);
}

#qrSizeSlider::-moz-range-thumb {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid white;
    box-shadow: var(--shadow-md);
    cursor: pointer;
}

.size-legend {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
    font-weight: 500;
}

/* QR Display */
#qrCodeDisplay {
    width: auto;
    height: auto;
    min-width: 128px;
    min-height: 128px;
    margin: 0 auto var(--spacing-xl);
    background: var(--card-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: visible !important;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 95vw;
}

/* Styling untuk QR Code dari library */
#qrCodeDisplay svg,
#qrCodeDisplay canvas {
    width: 100% !important;
    height: 100% !important;
    max-width: 100% !important;
    max-height: 100% !important;
    object-fit: contain;
    border-radius: var(--radius-lg);
    display: block;
    overflow: visible !important;
}

#qrCodeDisplay.generating {
    animation: qrPulse 1.5s ease-in-out infinite;
}

@keyframes qrPulse {
    0%, 100% {
        box-shadow: 
            0 0 0 0 rgba(67, 97, 238, 0.4),
            var(--shadow-lg);
        transform: scale(1);
    }
    50% {
        box-shadow: 
            0 0 0 15px rgba(67, 97, 238, 0),
            var(--shadow-lg);
        transform: scale(0.98);
    }
}

#qrCodeDisplay::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: -1;
    background-size: 200% 200%;
}

#qrCodeDisplay.animated-border::before {
    animation: borderFlow 2s ease-in-out;
    opacity: 1;
}

@keyframes borderFlow {
    0% {
        opacity: 0;
        background-position: 0% 0%;
    }
    25% {
        opacity: 1;
        background-position: 100% 0%;
    }
    50% {
        opacity: 1;
        background-position: 100% 100%;
    }
    75% {
        opacity: 1;
        background-position: 0% 100%;
    }
    100% {
        opacity: 0;
        background-position: 0% 0%;
    }
}

/* Animation untuk resize */
@keyframes qrResize {
    0% {
        transform: scale(0.95);
        opacity: 0.8;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.qr-resizing {
    animation: qrResize 0.3s ease-out;
}

/* QR Overlay */
.qr-overlay {
    position: absolute;
    inset: 0;
    background: var(--card-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    z-index: 10;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.qr-overlay.active {
    opacity: 0.9;
    pointer-events: all;
}

.qr-overlay i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    animation: spin 1s linear infinite;
}

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

.qr-overlay p {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
}

/* QR Buttons */
.qr-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

/* Info Box */
.info-box {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    border-left: 6px solid var(--primary-color);
    box-shadow: var(--shadow-md);
}

.info-box h4 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.info-box h4 i {
    color: var(--primary-color);
}

.info-box ul {
    list-style: none;
    padding-left: 0;
}

.info-box li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-xl);
    position: relative;
    color: var(--text-secondary);
    font-weight: 500;
}

.info-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Copy Success Toast */
.copy-success {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    background: rgba(74, 222, 128, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: none;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    z-index: 1000;
    animation: slideInRight 0.3s ease-out, fadeOut 0.3s ease-out 1.7s forwards;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

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

@keyframes fadeOut {
    to {
        opacity: 0;
        transform: translateY(20px);
    }
}

.copy-success i {
    font-size: 1.2rem;
}

/* Share Modal */
.share-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

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

.share-modal-content {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.3s ease;
}

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

.share-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.share-option {
    padding: var(--spacing-lg);
    border: 2px solid var(--border-color);
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    color: var(--text-primary);
}

.share-option:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.share-option i {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.share-option[data-app="whatsapp"] i { color: #25d366; }
.share-option[data-app="email"] i { color: #ea4335; }
.share-option[data-app="telegram"] i { color: #0088cc; }
.share-option[data-app="teams"] i { color: #6264a7; }
.share-option[data-app="classroom"] i { color: #0f9d58; }
.share-option[data-app="copy"] i { color: var(--primary-color); }

/* Share Button */
.btn-share {
    background: linear-gradient(135deg, #25d366, #128c7e) !important;
    color: white !important;
    border: none !important;
}

.btn-share:hover {
    background: linear-gradient(135deg, #128c7e, #25d366) !important;
    transform: translateY(-2px) !important;
}

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

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Focus States */
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Disabled State */
button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: var(--shadow-sm) !important;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

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

    .theme-toggle {
        top: var(--spacing-md);
        right: var(--spacing-md);
        width: 40px;
        height: 40px;
    }

    .header {
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .header h1 {
        font-size: 2rem;
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .input-section,
    .result-section,
    .info-box {
        padding: var(--spacing-xl);
    }

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

    .btn-primary,
    .btn-secondary {
        width: 100%;
    }
    
    .qr-buttons {
        flex-direction: column;
    }
    
    .qr-buttons .btn-secondary {
        width: 100%;
    }

    .share-options {
        grid-template-columns: repeat(2, 1fr);
    }

    .copy-success {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        left: var(--spacing-md);
        text-align: center;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.75rem;
    }

    .url-input {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 0.95rem;
    }

    .qr-container {
        padding: var(--spacing-md);
    }
    
    .qr-size-control {
        padding: var(--spacing-sm);
    }
    
    .qr-size-control label {
        flex-direction: column;
        gap: var(--spacing-xs);
        font-size: 0.9rem;
    }
    
    #qrSizeSlider {
        height: 10px;
    }
    
    #qrSizeSlider::-webkit-slider-thumb {
        width: 24px;
        height: 24px;
    }

    .share-options {
        grid-template-columns: 1fr;
    }

    .btn-primary,
    .btn-secondary {
        min-width: 100%;
        padding: var(--spacing-md) var(--spacing-lg);
    }
}

/* PWA Specific */
.pwa-mode .theme-toggle {
    top: 60px;
}

.pwa-close-btn {
    position: fixed;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(239, 68, 68, 0.9);
    color: white;
    border: none;
    font-size: 20px;
    cursor: pointer;
    z-index: 1001;
    display: none;
}

@media (display-mode: standalone) {
    .pwa-close-btn {
        display: block;
    }
    
    body {
        padding-top: env(safe-area-inset-top);
        padding-bottom: env(safe-area-inset-bottom);
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }
    
    .encrypt-container {
        margin-top: env(safe-area-inset-top);
        padding: var(--spacing-lg);
    }
}

/* Install Button */
.install-btn {
    animation: slideUp 0.5s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* UUID Input Container */
.uuid-container {
    background: var(--bg-secondary);
    padding: 16px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.uuid-container:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.uuid-container label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.95rem;
    white-space: nowrap;
}

.uuid-container label i {
    color: var(--primary-color);
    font-size: 1rem;
}

#uuidInput {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-family: 'Monaco', 'Menlo', monospace;
    letter-spacing: 1px;
    text-transform: uppercase;
}

#uuidInput:focus {
    border-color: var(--primary-color);
    outline: none;
}

#uuidCounter {
    font-family: 'Monaco', 'Menlo', monospace;
    font-weight: 600;
    padding: 4px 8px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

#uuidCounter.warning {
    color: var(--warning-color);
    animation: pulse 1s ease-in-out;
}

/* Responsive UUID */
@media (max-width: 768px) {
    .uuid-container {
        flex-direction: column;
        align-items: stretch !important;
        gap: 8px !important;
    }
    
    .uuid-container label {
        white-space: normal;
    }
}