:root {
    --bg-color: #1a1a1a;
    --card-color: #2c2c2c;
    --primary-color: #00aaff;
    --text-color: #f0f0f0;
    --text-muted-color: #888;
    --border-color: #444;
    --green-color: #32ff7e;
    --red-color: #ff4d4d;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 2rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 800px;
    background-color: var(--card-color);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    overflow: hidden;
}

header {
    background-color: #222;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

header h1 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
}

.connection {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#connect-button {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

#connect-button:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

#status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

#status-indicator.disconnected {
    background-color: var(--red-color);
}

#status-indicator.connected {
    background-color: var(--green-color);
}

main {
    padding: 2rem;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.setting-card {
    background-color: var(--bg-color);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.setting-card label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted-color);
    margin-bottom: 0.5rem;
}

select {
    width: 100%;
    background-color: var(--card-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 0.5rem;
    border-radius: 6px;
    font-size: 1rem;
}

h2 {
    font-size: 1rem;
    color: var(--text-muted-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-top: 0;
    margin-bottom: 1.5rem;
}

.param-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.param-card {
    background-color: var(--bg-color);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    border: 1px solid var(--border-color);
}

.param-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.param-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 500;
}

.param-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.param-options label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 1rem;
}

input[type="checkbox"] {
    accent-color: var(--primary-color);
    width: 18px;
    height: 18px;
}

footer {
    padding: 1.5rem;
    background-color: #222;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

#randomize-button {
    width: 100%;
    background-color: var(--primary-color);
    color: #fff;
    font-size: 1.25rem;
    font-weight: 700;
    border: none;
    padding: 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

#randomize-button:hover {
    transform: scale(1.02);
    box-shadow: 0 0 20px rgba(0, 170, 255, 0.5);
}