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

:root {
    --bg-gradient-start: #667eea;
    --bg-gradient-end: #764ba2;
    --container-bg: rgba(255, 255, 255, 0.98);
    --text-primary: #333;
    --text-secondary: #555;
    --border-color: #e0e0e0;
    --card-bg: #f8f9fa;
    --card-bg-secondary: #e9ecef;
    --input-bg: white;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --accent-color: #667eea;
    --accent-color-secondary: #764ba2;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    padding: 20px;
    overflow-x: hidden;
    transition: background 0.3s ease;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--container-bg);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

h1 {
    text-align: center;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
    font-size: 2.8em;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* App Header */
.app-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 25px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border-radius: 16px;
    border: 2px solid rgba(102, 126, 234, 0.15);
}

.header-badges {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

.badge {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.badge-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.badge-success {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
}

.badge-info {
    background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
    color: white;
}

.badge-warning {
    background: linear-gradient(135deg, #ff9800 0%, #ff5722 100%);
    color: white;
}

.badge-secure {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
}

.badge-fast {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
}

.header-description {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 700px;
    margin: 0 auto;
}

body.dark-mode .app-header {
    background: linear-gradient(135deg, rgba(124, 138, 219, 0.1) 0%, rgba(142, 107, 176, 0.1) 100%);
    border-color: rgba(124, 138, 219, 0.25);
}

@media (max-width: 768px) {
    .header-badges {
        flex-direction: column;
        align-items: center;
    }
    
    .badge {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
    
    .header-description {
        font-size: 14px;
    }
}

/* Dark Mode Toggle Button */
.theme-toggle {
    position: fixed;
    top: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-color-secondary) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
    z-index: 1000;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
    box-shadow: 0 6px 30px rgba(102, 126, 234, 0.6);
}

.theme-icon {
    font-size: 28px;
    transition: transform 0.3s ease;
}

.theme-toggle:active .theme-icon {
    transform: scale(0.9);
}

.upload-section {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 40px;
    padding: 30px;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--card-bg-secondary) 100%);
    border-radius: 16px;
    border: 1px solid rgba(102, 126, 234, 0.1);
    transition: all 0.3s ease;
}

.upload-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 15px;
    margin-bottom: -10px;
}

label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 15px;
    display: block;
    margin-bottom: 8px;
}

select, input[type="number"] {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: var(--input-bg);
    font-family: inherit;
    color: var(--text-primary);
    box-sizing: border-box;
}

select:hover, input[type="number"]:hover {
    border-color: var(--accent-color);
}

select:focus, input[type="number"]:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

input[type="file"] {
    width: 100%;
    padding: 20px;
    border: 3px dashed var(--accent-color);
    border-radius: 16px;
    background: var(--input-bg);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    font-size: 15px;
    color: var(--text-primary);
    box-sizing: border-box;
}

input[type="file"]:hover {
    border-color: var(--accent-color-secondary);
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    transform: translateY(-2px);
}

#customSizeInputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    padding: 20px;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(102, 126, 234, 0.2);
    transition: all 0.3s ease;
    box-sizing: border-box;
}

button {
    padding: 16px 32px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
}

button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

button:hover::before {
    left: 100%;
}

button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

button:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

button:disabled {
    background: linear-gradient(135deg, #ccc 0%, #aaa 100%);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.6;
}

.preview-section {
    text-align: center;
    padding: 30px;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--card-bg-secondary) 100%);
    border-radius: 16px;
    border: 1px solid rgba(102, 126, 234, 0.1);
    transition: all 0.3s ease;
}

.preview-section h3 {
    margin-bottom: 25px;
    color: var(--text-primary);
    font-size: 1.4em;
    font-weight: 600;
}

#photoCanvas {
    border: 2px solid var(--border-color);
    border-radius: 12px;
    max-width: 100%;
    height: auto;
    box-shadow: 0 10px 30px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: var(--input-bg);
}

#photoCanvas:hover {
    transform: scale(1.01);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.action-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 25px;
    flex-wrap: wrap;
}

.print-btn {
    padding: 14px 28px;
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.print-btn:hover {
    background: linear-gradient(135deg, #20c997 0%, #17a2b8 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(40, 167, 69, 0.5);
}

.print-btn:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.4);
}

.print-icon {
    font-size: 20px;
}

/* New styles for image list */
.image-list {
    margin-top: 20px;
    padding: 25px;
    background: var(--input-bg);
    border-radius: 16px;
    border: 2px solid rgba(102, 126, 234, 0.1);
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: all 0.3s ease;
}

.image-list h4 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 18px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.image-list h4::before {
    content: '📷';
    font-size: 24px;
}

.image-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--input-bg) 100%);
    border-radius: 12px;
    margin-bottom: 12px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.image-item:hover {
    background: linear-gradient(135deg, var(--card-bg-secondary) 0%, var(--card-bg) 100%);
    border-color: rgba(102, 126, 234, 0.3);
    transform: translateX(5px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.image-thumbnail {
    width: 70px;
    height: 70px;
    border-radius: 10px;
    border: 3px solid var(--accent-color);
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(102, 126, 234, 0.2);
    transition: transform 0.3s ease;
}

.image-item:hover .image-thumbnail {
    transform: scale(1.1);
}

.image-name {
    flex: 1;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.image-count {
    width: 90px;
    padding: 10px 12px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    background: var(--input-bg);
    color: var(--text-primary);
}

.image-count:hover {
    border-color: var(--accent-color);
}

.image-count:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.remove-btn {
    padding: 10px 20px;
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(220, 53, 69, 0.3);
}

.remove-btn:hover {
    background: linear-gradient(135deg, #c82333 0%, #bd2130 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.4);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 25px;
        border-radius: 20px;
    }
    
    h1 {
        font-size: 2em;
        margin-bottom: 30px;
    }
    
    .upload-section {
        padding: 20px;
        gap: 15px;
    }
    
    #customSizeInputs {
        grid-template-columns: 1fr;
        padding: 15px;
        gap: 12px;
    }
    
    select, input[type="number"], input[type="file"] {
        font-size: 14px;
    }
    
    label {
        font-size: 14px;
    }
    
    .image-item {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .image-thumbnail {
        width: 60px;
        height: 60px;
    }
    
    .image-name {
        flex: 1 1 100%;
        order: -1;
    }
    
    .image-count {
        flex: 1;
    }
    
    .remove-btn {
        flex: 1;
    }
    
    /* Editor specific mobile fixes */
    .card {
        padding: 15px;
    }
    
    .size-options label {
        padding: 10px;
        font-size: 14px;
    }
    
    .input-group input[type="number"] {
        padding: 8px;
        font-size: 14px;
    }
    
    .slider-group {
        margin-bottom: 15px;
    }
    
    .slider-group label {
        font-size: 13px;
    }
    
    .editor-preview {
        padding: 20px;
    }
    
    .adjustment-buttons,
    .crop-action-buttons {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    button {
        padding: 12px 20px;
        font-size: 14px;
    }
}

/* Smooth animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.image-item {
    animation: fadeIn 0.3s ease;
}

/* Focus visible for accessibility */
*:focus-visible {
    outline: 3px solid rgba(102, 126, 234, 0.5);
    outline-offset: 2px;
}

/* Editor Specific Styles */
.editor-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
    padding: 15px 20px;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--card-bg-secondary) 100%);
    border-radius: 12px;
}

.nav-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 8px;
}

.nav-link:hover {
    background: rgba(102, 126, 234, 0.1);
    transform: translateX(-3px);
}

.nav-title {
    font-weight: 600;
    color: var(--text-primary);
}

.editor-grid {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 20px;
}

.editor-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.editor-preview {
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--card-bg-secondary) 100%);
    border-radius: 16px;
    padding: 30px;
    min-height: 600px;
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
}

.card {
    background: var(--input-bg);
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px var(--shadow-color);
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.card:hover {
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.slider-group {
    margin-bottom: 20px;
}

.slider-group label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.slider-group label span:last-child {
    color: var(--accent-color);
    font-weight: 600;
}

.slider-group input[type="range"] {
    width: 100%;
}

.tool-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}

/* Horizontal Crop Tools (below crop image) */
.crop-tools-horizontal {
    margin-top: 20px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    border: 2px solid var(--border-color);
}

.tool-buttons-horizontal {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
    justify-content: center;
}

.tool-buttons-horizontal .tool-btn {
    flex: 0 1 auto;
    min-width: 120px;
}

.tool-btn {
    padding: 10px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-primary);
}

.tool-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.btn-apply {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-color-secondary) 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-apply:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-outline {
    padding: 10px 20px;
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: var(--accent-color);
    color: white;
}

.btn-secondary {
    padding: 10px 20px;
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(40, 167, 69, 0.3);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #20c997 0%, #17a2b8 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.4);
}

.adjustment-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 20px;
    box-sizing: border-box;
}

.crop-action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    box-sizing: border-box;
}

.crop-action-buttons .btn-outline,
.crop-action-buttons .btn-apply {
    width: 100%;
}

/* Size Selection */
.size-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.size-options label {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.size-options label:hover {
    background: var(--input-bg);
    border-color: var(--accent-color);
}

.size-options input[type="radio"] {
    cursor: pointer;
}

.size-options input[type="radio"]:checked + span {
    color: var(--accent-color);
    font-weight: 600;
}

.size-options label:has(input:checked) {
    border-color: var(--accent-color);
    background: var(--input-bg);
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
}

.input-group {
    margin-bottom: 12px;
}

.input-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.input-group input[type="number"] {
    width: 100%;
    padding: 10px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    background: var(--input-bg);
    color: var(--text-primary);
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.input-group input[type="number"]:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.bg-colors {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.bg-btn {
    padding: 12px;
    border: 3px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.bg-btn:hover {
    transform: scale(1.05);
}

.bg-btn.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.3);
}

#customBgColor {
    margin-top: 15px;
}

#customBgColor label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 500;
}

#bgColorPicker {
    width: 100%;
    height: 50px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
}

.upload-zone {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    border: 3px dashed var(--border-color);
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.upload-zone:hover {
    border-color: var(--accent-color);
    background: rgba(102, 126, 234, 0.05);
}

.upload-content {
    text-align: center;
    padding: 40px;
}

.upload-icon {
    font-size: 80px;
    margin-bottom: 20px;
}

.upload-content h3 {
    font-size: 24px;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.upload-content p {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.upload-hint {
    font-size: 13px;
    color: var(--text-secondary);
}

.crop-area, .preview-area, .a4-area {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.crop-area h3, .preview-area h3, .a4-area h3 {
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 600;
}

.crop-container {
    max-height: 500px;
    overflow: hidden;
    border-radius: 12px;
}

.crop-container img {
    max-width: 100%;
    display: block;
}

#previewCanvas {
    max-width: 100%;
    height: auto;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 4px 12px var(--shadow-color);
}

.a4-container {
    background: white;
    padding: 20px;
    border-radius: 12px;
    overflow: auto;
    max-height: 600px;
}

#a4Canvas {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px var(--shadow-color);
}

@media (max-width: 1024px) {
    .editor-grid {
        grid-template-columns: 1fr;
    }
    
    .editor-controls {
        order: 2;
    }
    
    .editor-preview {
        order: 1;
    }
}

/* Dark Mode Editor Styles */
body.dark-mode .card {
    background: var(--input-bg);
}

body.dark-mode .tool-btn {
    background: var(--card-bg);
    color: var(--text-primary);
}

body.dark-mode .bg-btn {
    color: var(--text-primary);
}

body.dark-mode .upload-zone {
    border-color: var(--border-color);
}

body.dark-mode .a4-container {
    background: var(--input-bg);
}

/* Focus visible for accessibility */
*:focus-visible {
    outline: 3px solid rgba(102, 126, 234, 0.5);
    outline-offset: 2px;
}

/* Dark Mode Styles */
body.dark-mode {
    --bg-gradient-start: #1a1a2e;
    --bg-gradient-end: #16213e;
    --container-bg: rgba(30, 30, 46, 0.95);
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --border-color: #3a3a5a;
    --card-bg: #2a2a3e;
    --card-bg-secondary: #232338;
    --input-bg: #1e1e2e;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --accent-color: #7c8adb;
    --accent-color-secondary: #8e6bb0;
}

body.dark-mode .theme-icon {
    content: '☀️';
}

body.dark-mode .theme-toggle {
    background: linear-gradient(135deg, #ffa500 0%, #ff6347 100%);
    box-shadow: 0 4px 20px rgba(255, 165, 0, 0.4);
}

body.dark-mode .theme-toggle:hover {
    box-shadow: 0 6px 30px rgba(255, 165, 0, 0.6);
}

body.dark-mode h1 {
    background: linear-gradient(135deg, #7c8adb 0%, #8e6bb0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

body.dark-mode button {
    background: linear-gradient(135deg, #7c8adb 0%, #8e6bb0 100%);
}

body.dark-mode .remove-btn {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
}

body.dark-mode .print-btn {
    background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
}

body.dark-mode .print-btn:hover {
    background: linear-gradient(135deg, #27ae60 0%, #229954 100%);
}

/* Print Styles */
@media print {
    @page {
        margin: 0;
        size: A4 portrait;
    }
    
    body {
        background: white !important;
        padding: 0 !important;
        margin: 0 !important;
    }
    
    /* Hide everything except A4 canvas */
    .theme-toggle,
    .container > h1,
    .app-header,
    .editor-nav,
    .editor-controls,
    .action-buttons,
    #uploadZone,
    #cropArea,
    #previewArea,
    .app-footer,
    .upload-section {
        display: none !important;
    }
    
    .container {
        padding: 0 !important;
        margin: 0 !important;
        background: white !important;
        box-shadow: none !important;
        border-radius: 0 !important;
    }
    
    /* Simple mode - preview section */
    .preview-section {
        background: white !important;
        border: none !important;
        padding: 0 !important;
        margin: 0 !important;
        box-shadow: none !important;
    }
    
    .preview-section h3 {
        display: none !important;
    }
    
    #photoCanvas {
        display: block !important;
        width: 100% !important;
        height: auto !important;
        max-width: 210mm !important;
        border: none !important;
        box-shadow: none !important;
        margin: 0 !important;
        padding: 0 !important;
        page-break-inside: avoid !important;
        page-break-after: avoid !important;
    }
    
    /* Editor mode - grid layout */
    .editor-grid {
        display: block !important;
        padding: 0 !important;
        margin: 0 !important;
    }
    
    .editor-preview {
        padding: 0 !important;
        margin: 0 !important;
    }
    
    #a4Area {
        display: block !important;
        padding: 0 !important;
        margin: 0 !important;
    }
    
    #a4Area h3 {
        display: none !important;
    }
    
    .a4-container {
        background: white !important;
        padding: 0 !important;
        margin: 0 !important;
        border-radius: 0 !important;
        overflow: visible !important;
        max-height: none !important;
        box-shadow: none !important;
    }
    
    #a4Canvas {
        display: block !important;
        width: 100% !important;
        height: auto !important;
        max-width: 210mm !important;
        border: none !important;
        box-shadow: none !important;
        margin: 0 !important;
        padding: 0 !important;
        page-break-inside: avoid !important;
        page-break-after: avoid !important;
    }
    
    /* Ensure high quality print */
    * {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
}

/* Footer Styles */
.app-footer {
    margin-top: 60px;
    padding: 30px 20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 16px;
    border: 1px solid rgba(102, 126, 234, 0.2);
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
}

.footer-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.footer-icon {
    font-size: 18px;
}

.footer-link {
    color: var(--accent-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 8px;
    background: rgba(102, 126, 234, 0.05);
}

.footer-link:hover {
    background: rgba(102, 126, 234, 0.15);
    transform: translateY(-2px);
}

body.dark-mode .app-footer {
    background: linear-gradient(135deg, rgba(124, 138, 219, 0.1) 0%, rgba(142, 107, 176, 0.1) 100%);
    border-color: rgba(124, 138, 219, 0.2);
}

body.dark-mode .footer-link {
    color: var(--accent-color);
    background: rgba(124, 138, 219, 0.1);
}

body.dark-mode .footer-link:hover {
    background: rgba(124, 138, 219, 0.2);
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: 15px;
    }
    
    .footer-item {
        text-align: center;
    }
}
/* Loading Animation */
.app-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.app-loader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-content {
    text-align: center;
    animation: fadeInUp 0.6s ease;
}

.loader-icon {
    font-size: 80px;
    margin-bottom: 20px;
    animation: bounce 1s ease infinite;
}

.loader-title {
    color: white;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: 1px;
}

.loader-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    margin-bottom: 30px;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    margin: 0 auto;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Install Prompt */
.install-prompt {
    position: fixed;
    bottom: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 500px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 25px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.5);
    z-index: 9998;
    transition: bottom 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    backdrop-filter: blur(10px);
}

.install-prompt.show {
    bottom: 20px;
}

.install-prompt-content {
    display: flex;
    align-items: center;
    gap: 15px;
}

.install-icon {
    font-size: 40px;
    flex-shrink: 0;
    animation: pulse 2s ease infinite;
}

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

.install-text {
    flex: 1;
}

.install-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 5px;
}

.install-description {
    font-size: 14px;
    opacity: 0.95;
    line-height: 1.4;
}

.install-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.install-btn {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.install-btn-primary {
    background: white;
    color: #667eea;
}

.install-btn-primary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.install-btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.install-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
}

.install-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.install-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

@media (max-width: 600px) {
    .install-prompt {
        width: 95%;
        padding: 15px 20px;
    }
    
    .install-icon {
        font-size: 35px;
    }
    
    .install-title {
        font-size: 16px;
    }
    
    .install-description {
        font-size: 13px;
    }
    
    .install-actions {
        flex-direction: column;
    }
    
    .install-btn {
        padding: 10px 16px;
        font-size: 14px;
    }
}