:root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --accent: #4f9eff;
    --border: #404040;
    --input-bg: #333333;
    --button-bg: #4f9eff;
    --button-text: #ffffff;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    margin: 0;
    padding: 20px;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.container {
    max-width: 600px;
    margin: 0 auto 20px auto;
    padding: 15px;
    background: var(--bg-secondary);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border);
}

h1 {
    font-size: 1.5rem;
    margin: 0 0 15px 0;
}

h2 {
    font-size: 1.2rem;
    margin: 10px 0;
}

select, textarea {
    width: 100%;
    padding: 5px;
    margin: 5px 0;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--input-bg);
    color: var(--text-primary);
    font-family: inherit;
}

select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.svg-container {
    display: block;
    width: 480px;
    height: 360px;
    overflow: hidden;
    background: var(--bg-primary);
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    margin: 0 auto;
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000;
    will-change: transform;
}

.svg-container svg {
    width: 100%;
    height: 100%;
    display: block;
}

button {
    padding: 5px 10px;
    margin: 5px;
    background: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #3d8beb;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#preview {
    width: 100%;
    aspect-ratio: 1;
    border: 1px solid #ccc;
    margin-bottom: 1rem;
    overflow: hidden;
}

#history {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
    overflow: hidden;
}

.history-item {
    border: 1px solid #ccc;
    padding: 5px;
    cursor: pointer;
    overflow: hidden;
}

.history-item > div {
    overflow: hidden;
}

.history-item {
    display: inline-block;
    margin: 5px;
    padding: 5px;
    border: 2px solid var(--border);
    border-radius: 4px;
    background: var(--bg-secondary);
    transition: border-color 0.2s ease-in-out;
}

.history-item.active {
    border-color: var(--accent);
}

label {
    display: block;
    margin: 5px 0;
    color: var(--text-secondary);
}

input[type="number"] {
    background: var(--input-bg);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 4px 8px;
}

input[type="range"] {
    accent-color: var(--accent);
}

#speed-slider {
    -webkit-appearance: none;
    background: var(--border);
    height: 2px;
    direction: rtl;
}

#speed-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    transition: background-color 0.2s;
}

#speed-slider::-webkit-slider-thumb:hover {
    background: #3d8be6;
}

#speed-slider::-moz-range-thumb {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: none;
    transition: background-color 0.2s;
}

#speed-slider::-moz-range-thumb:hover {
    background: #3d8be6;
}

#speed-slider::-moz-range-progress {
    background-color: transparent;
}

.temperature-container, .seed-container, .speed-slider-container {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 10px 0;
}

.speed-slider-container {
    margin-top: 10px;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

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

.controls {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 10px;
}

.frame-counter {
    color: var(--text-secondary);
    font-family: monospace;
    margin-left: 10px;
}

textarea {
    width: 100%;
    margin-bottom: 1rem;
    padding: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: monospace;
}

#initial-svg {
    font-size: 0.9em;
    background-color: #1a1a1a;
    border-color: #333;
    color: #aaa;
}

#history svg {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    margin: 5px;
}