:root {
    --bg-color: #12111f;       /* Dark navy, almost black */
    --button-bg: #8d0c00;      /* Deep dark red */
    --button-hover: #a3201a;   /* Brighter, more vivid red */
    --button-active: #6d0800;  /* Very dark muted red */
    --text-color: #ffffff;     /* White for readability */
    --toggle-bg: #1a1927;      /* Slightly lighter than bg-color */
    --toggle-off: #2a2937;     /* Muted dark color for unchecked toggle */
    --toggle-on: #8d0c00;      /* Matching button color for checked toggle */
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@500&display=swap');

body {
    background-color: var(--bg-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", 
                 Roboto, "Helvetica Neue", Arial, sans-serif;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.random-button {
    background-color: var(--button-bg);
    color: var(--text-color);
    border: none;
    padding: 1.75rem 3.5rem;
    font-size: 1.75rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    border-radius: 1rem;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s ease-in-out;
    -webkit-tap-highlight-color: transparent;
}

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

.random-button:active {
    background-color: var(--button-active);
}

.toggle-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 300px;
}

.toggle-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.toggle-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--toggle-bg);
    padding: 0.75rem 1rem;
    border-radius: 0.75rem;
    flex: 1;
}

.toggle-label {
    color: var(--text-color);
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.3px;
}

.toggle {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--toggle-off);
    transition: .2s ease-in-out;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-color);
    transition: .2s ease-in-out;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--toggle-on);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

@media (max-width: 768px) {
    .random-button {
        padding: 1.5rem 3rem;
        font-size: 1.5rem;
    }

    .toggle-grid {
        width: 280px;
    }

    .toggle-container {
        padding: 0.6rem 0.8rem;
    }

    .toggle-label {
        font-size: 0.9rem;
    }
}