:root {
    --primary-color: #0052CC;
    --primary-hover: #0747A6;
    --secondary-color: #42526E;
    --background: #FAFBFC;
    --surface: #FFFFFF;
    --border: #DFE1E6;
    --text-primary: #172B4D;
    --text-secondary: #6B778C;
    --success: #00875A;
    --danger: #DE350B;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.header {
    text-align: center;
    padding: 40px 0 30px;
    position: relative;
}

.header h1 {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.language-switcher {
    position: absolute;
    top: 20px;
    right: 20px;
}

.language-switcher select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 3px;
    background-color: var(--surface);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: border-color 0.2s;
}

.language-switcher select:hover {
    border-color: var(--primary-color);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.capture-section {
    text-align: center;
}

.primary-btn, .secondary-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 3px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.primary-btn {
    background-color: var(--primary-color);
    color: white;
}

.primary-btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.secondary-btn {
    background-color: var(--surface);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.secondary-btn:hover {
    background-color: var(--background);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.secondary-btn.success {
    background-color: var(--success);
    color: white;
    border-color: var(--success);
}

.icon {
    width: 20px;
    height: 20px;
}

.info-text {
    display: block;
    margin-top: 15px;
    color: var(--text-secondary);
    font-size: 14px;
}

.drop-zone {
    width: 100%;
    max-width: 600px;
    height: 300px;
    border: 2px dashed var(--border);
    border-radius: 8px;
    background-color: var(--surface);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    cursor: pointer;
    transition: all 0.3s;
    margin: 0 auto;
}

.drop-zone:hover {
    border-color: var(--primary-color);
    background-color: rgba(0, 82, 204, 0.02);
}

.drop-zone.dragover {
    border-color: var(--primary-color);
    background-color: rgba(0, 82, 204, 0.05);
    transform: scale(1.02);
}

.drop-icon {
    color: var(--text-secondary);
    opacity: 0.5;
}

.editor-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.toolbar {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 12px;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.tool-group {
    display: flex;
    gap: 8px;
    align-items: center;
}

.tool-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    background-color: var(--surface);
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    color: var(--text-primary);
}

.tool-btn:hover {
    background-color: var(--background);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.tool-btn.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.tool-btn svg {
    width: 20px;
    height: 20px;
}

.color-picker {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
    padding: 4px;
}

.stroke-selector, .font-selector {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 3px;
    background-color: var(--surface);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
}

.canvas-container {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    box-shadow: var(--shadow-md);
}

#canvas {
    max-width: 100%;
    height: auto;
    cursor: crosshair;
    box-shadow: var(--shadow-lg);
}

.action-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.text-input {
    position: fixed;
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 8px;
    box-shadow: var(--shadow-md);
    z-index: 1000;
}

.text-input input {
    border: none;
    outline: none;
    font-size: 16px;
    padding: 4px 8px;
    min-width: 200px;
    color: var(--text-primary);
}

.footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--text-secondary);
    font-size: 14px;
    border-top: 1px solid var(--border);
    margin-top: 60px;
}

@media (max-width: 768px) {
    .header h1 {
        font-size: 24px;
    }
    
    .subtitle {
        font-size: 16px;
    }
    
    .language-switcher {
        position: static;
        margin-top: 20px;
    }
    
    .drop-zone {
        height: 200px;
    }
    
    .toolbar {
        justify-content: center;
    }
    
    .tool-group {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .canvas-container {
        padding: 10px;
    }
}