:root {
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F8F8;
    --bg-code: #F1F1F1;
    --text-primary: #1A1A1A;
    --text-secondary: #4A4A4A;
    --border-color: #E5E5E5;
    --preview-bg: #FFFFFF;
}

[data-theme="dark"] {
    --bg-primary: #0A0A0A;
    --bg-secondary: #111111;
    --bg-code: #222222;
    --text-primary: #FFFFFF;
    --text-secondary: #FFFFFF;
    --border-color: #333333;
    --preview-bg: #0A0A0A;
}

/* Base styles */
:root {
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
}

body {
    font-family: "Geist Mono", monospace;
    margin: 0;
    padding: var(--spacing-md);
    display: flex;
    justify-content: center;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 80rem;
    padding: var(--spacing-lg);
    background-color: var(--bg-secondary);
    border-radius: 0.25rem;
    position: relative;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.preview-area {
    min-height: 400px;
    padding: 1rem;
    background-color: var(--preview-bg);
    border: 2px solid var(--border-color);
    border-radius: 0.375rem;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

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

select {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    width: 100%;
    background-color: var(--preview-bg);
    color: var(--text-primary);
}

/* Mobile styles */
@media (max-width: 768px) {
    body {
        padding: 0;
    }

    .container {
        min-height: 80vh;
        padding: var(--spacing-md);
        border-radius: 0;
        display: flex;
        flex-direction: column;
    }

    .main-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        margin-top: var(--spacing-md);
        flex: 1;
    }

    .preview-area {
        min-height: 180px;
        height: 180px;
        order: -1;
    }

    .box {
        width: 40px !important;
        padding: 15px 8px !important;
        margin: 3px !important;
        font-size: 0.9rem;
    }

    .controls-and-code {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .control-group {
        margin-bottom: var(--spacing-xs);
    }

    h1 {
        font-size: 1.25rem;
        padding-right: 3rem;
        margin: 0 0 var(--spacing-xs) 0;
    }

    .description {
        font-size: 0.875rem;
        margin: 0;
    }

    .theme-toggle {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
    }
}

.theme-toggle {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.25rem;
    border-radius: 0.375rem;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 1.2rem;
    width: 2.5rem;
    height: 2.5rem;
    justify-content: center;
}

.theme-toggle i {
    width: 1.2rem;
    height: 1.2rem;
    line-height: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    border-color: var(--text-secondary);
}

h1 {
    font-family: "Geist Mono", monospace;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    padding-right: 3rem;
    opacity: 0.95;
}

.description, p {
    font-family: "Geist Mono", monospace;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-weight: 400;
    opacity: 0.9;
}

.controls {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

label {
    font-family: "Geist Mono", monospace;
    font-weight: 700;
}

select {
    padding: 0.25rem;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    width: 100%;
    max-width: 300px;
    background-color: var(--preview-bg);
    color: var(--text-primary);
}

.preview-area {
    min-height: 400px;
    padding: 1rem;
    background-color: var(--preview-bg);
    border: 2px solid var(--border-color);
    border-radius: 0.375rem;
}

.box {
    width: 60px;
    padding: 20px 10px;
    margin: 5px;
    text-align: center;
    color: white;
    font-weight: bold;
}

.code-container {
    position: relative;
    margin-top: 1rem;
    padding: 1rem;
    background-color: var(--bg-code);
    border-radius: 0.375rem;
}

.copy-button {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    padding: 0.375rem 0.75rem;
    background-color: #3b82f6;
    color: white;
    border: none;
    border-radius: 0.25rem;
    cursor: pointer;
}

.copy-button:hover {
    background-color: #2563eb;
}

pre {
    margin: 0;
    white-space: pre-wrap;
}

code {
    font-family: monospace;
    color: var(--text-primary);
}