:root {
    --primary: #878af4;
    --primary-hover: #4f46e5;
    --bg-color: #edf2f7;
    --surface: #ffffff;
    --secondary: #d3dce8;
    --secondary-hover: #979ca3;
    --highlight: #a6b0c4;
    --text: #1e293b;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

:root[data-theme="dark"] {
    --primary: #818cf8;
    --primary-hover: #6366f1;
    --bg-color: #0f172a;
    --surface: #1e293b;
    --secondary: #334155;
    --secondary-hover: #516684;
    --highlight: #586270;
    --text: #f1f5f9;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
}

* {
    box-sizing: border-box;
}

body {
    font-family: system-ui, -apple-system, sans-serif;
    margin: 0;
    padding: 10px;
    display: flex;
    flex-shrink: 1;
    flex-direction: column;
    align-items: center;
    background-color: var(--bg-color);
    color: var(--text);
    line-height: 1.5;
    transition: background-color 0.3s, color 0.3s;
    width: 100%;
}

.container {
    max-width: 900px;
    background-color: var(--surface);
    padding-right: 10px;
    padding-left: 10px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    position: relative;
    transition: background-color 0.3s, box-shadow 0.3s;
    display: flex;
    align-items: center;
    width: 100%;
    flex-direction: column;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--secondary);
    color: var(--text);
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.3s, background-color 0.3s;
}

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

.theme-toggle svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

h1 {
    margin: 10px;
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--text);
}

.control-group {
    background-color: var(--bg-color);
    border-radius: 12px;
    padding: 0 20px;
    margin: 10px 0;
    transition: background-color 0.3s;
    width: 100%;
}

.slider-container {
    display: flex;
    width: 100%;
    align-items: center;
    gap: 16px;
    margin: 16px 0;
}

.slider-container label {
    font-weight: 500;
}

.input {
    height: 6px;
    background: var(--secondary);
    border-radius: 3px;
    appearance: none;
    transition: background-color 0.3s;
    display: block;
}

.slider-container input[type="range"] {
    flex: 1;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.15s;
}

.slider-container input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.beat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    margin: 24px 0;
}

.beat-container {
    display: flex;
    flex-direction: column;
    gap: 4px;
    border-radius: 8px;
    padding: 8px;
    flex-grow: 1;
}

.subdivision-container {
    display: flex;
    gap: 4px;
}

.top-slider-input {
    width: 100%;
}

.beat-button {
    min-height: 24px;
    background-color: var(--secondary);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    padding: 0;
    flex-grow: 1;
}

.beat-button:hover {
    background-color: var(--highlight);
}

.beat-button.high.active {
    background-color: var(--primary);
}

.beat-button.low.active {
    background-color: #94a3b8;
}

.beat-button.current {
    outline: 2px solid var(--highlight);
    outline-offset: -2px;
}

.play-button {
    padding: 12px 32px;
    margin: 20px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 500;
    transition: background-color 0.2s;
}

.play-button:hover {
    background-color: var(--primary-hover);
}

.play-button.playing {
    background-color: var(--secondary);
}

.play-button.playing:hover {
    background-color: var(--secondary-hover);
}

.header {
    display: flex;
    justify-content: space-between;
    align-content: center;
    align-items: center;
    padding: 10px;
    width: 100%;
}

.pattern-presets {
    padding: 6px;
    border-radius: 8px;
    border: none;
    background-color: var(--secondary);
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
    display: flex;
    text-align: center;
    height: min-content;
}

.pattern-presets:focus {
    outline: none;
    border-color: var(--secondary-hover);
}

.bpm-value {
    font-size: 3em;
    margin: 0 10px;
    font-weight: 600;
}

.tempo-button {
    background-color: var(--bg-color);
    border-radius: 12px;
    border: none;
    padding: 5px;
    margin: 10px;
    font-weight: 500;
    letter-spacing: 2px;
    font-size: 1em;
    color: var(--text);
    flex-grow: 1;
}

.tempo-slider-container {

    width: 80%;
    margin: 10px auto;
}

.tempo-slider-input {
    width: 100%;
}

.tempo-container {
    width: 100%;
    margin: 20px 0;
    display: flex;
    flex-direction: column;
}

.tempo-button-row {
    display: flex;
    width: 100%;
    flex-direction: row;
}