/* Root container */
#beats-app {
    max-width: 900px;
    margin: 2rem auto;
    padding: 1.5rem;
    background: #111;
    color: #eee;
    border-radius: 12px;
    box-shadow: 0 0 20px rgba(0,0,0,0.4);
    font-family: system-ui, sans-serif;
}

/* Top controls */
.beats-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
    align-items: flex-end;
}

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

.control-group label {
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
    opacity: 0.8;
}

.control-group input,
.control-group select {
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
    border: 1px solid #444;
    background: #222;
    color: #eee;
}

.play-controls button {
    padding: 0.6rem 1rem;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    background: #3a7afe;
    color: white;
    font-weight: bold;
}

.play-controls button:disabled {
    background: #555;
    cursor: not-allowed;
}

/* Mixer layout */
.beats-mixer {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.mixer-column {
    flex: 1;
    background: #1a1a1a;
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid #333;
}

.mixer-column h2 {
    margin-top: 0;
    font-size: 1.2rem;
    border-bottom: 1px solid #333;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

/* Track cards */
.track-card {
    background: #222;
    border: 1px solid #333;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.track-card .freq-display {
    font-size: 0.9rem;
    margin-bottom: 0.6rem;
    opacity: 0.9;
}

.track-card label {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    opacity: 0.8;
}

.track-card input[type="number"],
.track-card input[type="range"] {
    width: 100%;
    margin-top: 0.2rem;
}

.track-card .delete-track {
    margin-top: 0.8rem;
    padding: 0.4rem 0.8rem;
    background: #b33;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

.track-card .delete-track:hover {
    background: #d44;
}

/* Add track button */
.add-track {
    width: 100%;
    padding: 0.6rem;
    margin-top: 1rem;
    background: #333;
    border: 1px solid #444;
    border-radius: 6px;
    color: #eee;
    cursor: pointer;
}

.add-track:hover {
    background: #444;
}

/* controls the offset freqency */
.offset-control {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.offset-control .offset-input {
    width: 40px;
    padding: 0.2rem;
    text-align: center;
    font-size: 0.9rem;
}


/* Smaller + / - buttons */
.offset-control button {
    width: 26px;          /* was 32px */
    height: 26px;         /* was 32px */
    background: #333;
    border: 1px solid #444;
    border-radius: 4px;
    color: #eee;
    font-size: 1rem;      /* was 1.2rem */
    line-height: 1;
    padding: 0;
    cursor: pointer;
}

.offset-control button:hover {
    background: #444;
}



/* Base frequency controller */
.basefreq-control {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.basefreq-control input[type=number] {
    width: 60px;
    text-align: center;
    padding: 0.25rem;
    font-size: 1rem;
}

.basefreq-control button {
    width: 28px;
    height: 28px;
    background: #333;
    border: 1px solid #444;
    border-radius: 4px;
    color: #eee;
    font-size: 1.1rem;
    line-height: 1;
    padding: 0;
    cursor: pointer;
}

.basefreq-control button:hover {
    background: #444;
}



/* Mobile layout for top controls */
@media (max-width: 600px) {
    .beats-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .control-group {
        width: 100%;
    }

    .basefreq-control {
        justify-content: space-between;
    }
}


/* Remove number input arrows (Chrome, Edge, Safari, Opera) */
input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* Remove number input arrows (Firefox) */
input[type=number] {
    -moz-appearance: textfield;
}

.freq-display {
    height: 1.2em; /* or whatever height fits your design */
}