/* ============================================
   MUSIC CIPHER PAGE
   ============================================ */
.music-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

.intro-box {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 30px;
    text-align: left;
}

.intro-box h2 {
    color: var(--color-accent);
    margin-top: 0;
}

.cipher-method {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 25px;
    margin-bottom: 25px;
}

.cipher-method h3 {
    color: var(--color-accent);
    margin-top: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.note-input {
    width: 100%;
    min-height: 120px;
    padding: 12px;
    background: var(--color-surface-deep);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    resize: vertical;
    box-sizing: border-box;
}

.settings-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

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

.setting-group label {
    margin-bottom: 5px;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.setting-group select {
    padding: 8px;
    background: var(--color-surface-deep);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-family: inherit;
}

.output-box {
    background: var(--color-surface-deep);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 15px;
    margin-top: 15px;
    min-height: 60px;
    color: var(--color-accent);
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    word-wrap: break-word;
}

.output-box--muted {
    color: var(--color-text-muted);
}

.button-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn {
    padding: 10px 20px;
    background: var(--color-accent);
    border: none;
    border-radius: var(--radius-pill);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn:hover {
    background: var(--color-primary);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-surface-deep);
}

.help-text {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-style: italic;
    margin-top: 8px;
}

.mapping-display {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 8px;
    margin-top: 15px;
    padding: 15px;
    background: var(--color-surface-deep);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
}

.mapping-display.is-hidden {
    display: none;
}

.mapping-item {
    text-align: center;
    padding: 5px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.note-name {
    font-weight: bold;
    color: var(--color-accent);
}