:root {
    --header-bg: rgb(34, 35, 36);
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --text-primary: #f0f0f0;
    --text-secondary: #b0b0b0;
    --accent: #4a8fe7;
    --border: #444;
}

[data-theme="light"] {
    --header-bg: #ffffffff;
    --bg-primary: #f5f5f5;
    --bg-secondary: #e0e0e0;
    --text-primary: #333;
    --text-secondary: #666;
    --accent: #1a73e8;
    --border: #ddd;
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    transition: background 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: clamp(1rem, 2vw, 2.5rem);
}

header {
    display: flex;
    position: sticky;
    top: -1px;
    left: 0px;
    background-color: var(--header-bg);
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
    padding: 1rem 0.5rem;
    margin-bottom: 2rem;
}

.header-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.lang-select {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: 6px;
    padding: 0.4rem 0.6rem;
    font-size: 0.9rem;
}

h1 {
    color: var(--accent);
    margin: 0;
    font-size: 1.75rem;
}

.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.3s;
}

.theme-toggle:hover {
    background: var(--accent);
    color: white;
}

.component-section {
    background: var(--bg-secondary);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

h2 {
    margin-top: 0;
    color: var(--accent);
}

.demo-area {
    margin-top: 1rem;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 8px;
    padding: 1.25rem;
    border: 1px dashed var(--border);
}

.controls {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

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

label {
    margin-bottom: 0.25rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

input,
select,
textarea,
button {
    font-size: 1rem;
    padding: 0.6rem 0.75rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
}

button.button {
    background: linear-gradient(to right, var(--accent), #3a7bd5);
    color: white;
    border: none;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 0.75rem 1.25rem;
    margin: 1.5rem 0;
    border-radius: 6px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.code-block {
    background: rgba(0, 0, 0, 0.1);
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    font-family: monospace;
    font-size: 0.9rem;
}

.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
}

.tab {
    flex: 1;
    text-align: center;
    padding: 0.75rem;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: border-color 0.2s;
}

.tab.active {
    border-bottom-color: var(--accent);
    font-weight: bold;
}

.tab-content {
    display: none;
    padding: 1rem 0;
}

.tab-content.active {
    display: block;
}

@media (max-width: 600px) {
    .tabs {
        flex-direction: column;
    }

    .tab {
        border-bottom: none;
        border-left: 3px solid transparent;
        text-align: left;
    }

    .tab.active {
        border-left-color: var(--accent);
    }
}

.hidden {
    display: none;
}
.intro {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: clamp(1rem, 2vw, 2rem);
    border-radius: 0 0 8px 8px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.intro-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
    overflow-x: auto;
}

.import-code {
    background: rgba(0, 0, 0, 0.2);
    border: 1px dashed var(--border);
    border-radius: 6px;
    display: inline-block;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.intro-links {
    margin: 1rem 0;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.link {
    color: var(--accent);
    font-weight: bold;
    text-decoration: none;
    transition: color 0.2s;
}

.link:hover {
    color: #3a7bd5;
}

.intro-message {
    color: var(--text-secondary);
    font-size: 0.95rem;
}