/* morse-code.css */

.morse-main { max-width: 860px; }

.mode-row {
    margin-bottom: 1.2rem;
}

.mode-tabs {
    display: flex;
    gap: 0.4rem;
}

.mode-tab {
    padding: 0.45rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    color: var(--color-text);
    cursor: pointer;
    font-family: var(--font-main);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.15s;
}
.mode-tab:hover { border-color: var(--color-primary); color: var(--color-primary); }
.mode-tab.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.morse-layout {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.morse-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.morse-mid {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-top: 1.8rem;
    flex-shrink: 0;
}

.morse-btn {
    white-space: nowrap;
    font-size: 0.9rem;
    padding: 0.6rem 0.9rem;
}

.secondary-btn { background: #6c757d; }
.secondary-btn:hover { background: #545b62; }

.copy-btn {
    align-self: flex-start;
    margin-top: 0.4rem;
    padding: 0.3rem 0.75rem;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    cursor: pointer;
    font-family: var(--font-main);
    transition: background 0.15s;
}
.copy-btn:hover { background: var(--color-primary-dk); }
.copy-btn.copied { background: #28a745; }

.hint-text {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    margin: 0 0 1rem;
}

.ref-panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 0.75rem 1rem;
}

.ref-summary {
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    color: var(--color-primary);
    list-style: none;
    padding: 0.2rem 0;
}
.ref-summary::-webkit-details-marker { display: none; }
.ref-summary::before { content: "▶ "; font-size: 0.75em; }
details[open] .ref-summary::before { content: "▼ "; }

.morse-ref-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.4rem;
    margin-top: 0.75rem;
}

.morse-ref-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.35rem 0.5rem;
    font-size: 0.82rem;
}

.ref-char {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-primary);
}
.ref-morse {
    font-family: var(--font-mono);
    color: var(--color-text-muted);
    font-size: 0.78rem;
}

@media (max-width: 600px) {
    .morse-layout { flex-direction: column; }
    .morse-mid {
        flex-direction: row;
        padding-top: 0;
        justify-content: center;
    }
}