/* Chord Progression Generator – هماهنگ با قالب و سایر ابزارها */

.chord-gen-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: var(--section-gap);
    flex: 1;
    min-height: min(50vh, 360px);
}

.chord-gen-center {
    width: 100%;
    max-width: 520px;
    box-sizing: border-box;
}

.chord-gen-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 28px 24px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    text-align: center;
}

.chord-gen-title {
    margin: 0 0 6px;
    font-size: 1.375rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text);
}

.chord-gen-subtitle {
    color: var(--text-muted);
    margin: 0 0 22px;
    font-size: 0.875rem;
}

/* یک ردیف در همه عرض‌ها (مثل Stream Royalty: Total Streams + Royalty share)، فاصله یکسان از گوشه‌ها */
.chord-gen-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px 24px;
    margin-bottom: 20px;
    text-align: left;
    align-items: start;
    width: 100%;
}

.chord-gen-field {
    min-width: 0;
    overflow: hidden;
}

.chord-gen-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.chord-gen-select {
    width: 100%;
    max-width: 100%;
    padding: 10px 12px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    box-sizing: border-box;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='%23737373'%3E%3Cpath d='M6 8L2 4h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    color-scheme: dark;
    -webkit-tap-highlight-color: transparent;
}

.chord-gen-select:focus {
    outline: none;
    border-color: var(--primary);
}

.chord-gen-select option {
    background: var(--bg-card);
    color: var(--text);
}

.chord-gen-select {
    color-scheme: dark;
}

.chord-gen-complexity .chord-gen-label {
    margin-bottom: 8px;
}

.chord-gen-toggle {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chord-gen-toggle-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 8px 14px;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s, background 0.2s;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.chord-gen-toggle-btn:hover {
    border-color: rgba(255, 255, 255, 0.15);
    color: var(--text);
}

.chord-gen-toggle-btn.active,
.chord-gen-toggle-btn[aria-pressed="true"] {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-dim);
}

.chord-gen-btn {
    display: inline-block;
    padding: 10px 20px;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    border: 1px solid transparent;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    margin-bottom: 24px;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.chord-gen-btn--primary {
    background: var(--primary);
    color: #0a0a0a;
    border-color: var(--primary);
}

.chord-gen-btn--primary:hover {
    background: #1ea34e;
    color: #0a0a0a;
}

.chord-gen-btn--secondary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.chord-gen-btn--secondary:hover:not(:disabled) {
    background: var(--primary-dim);
    color: var(--primary);
}

.chord-gen-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.chord-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
    text-align: center;
}

.chord-card {
    appearance: none;
    -webkit-appearance: none;
    font: inherit;
    color: inherit;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: border-color 0.2s, background 0.2s;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    cursor: pointer;
}

.chord-card:hover:not(:disabled) {
    border-color: rgba(255, 255, 255, 0.1);
}

.chord-card:disabled {
    cursor: default;
    opacity: 1;
}

.chord-card.playing {
    border-color: var(--primary);
    background: var(--primary-dim);
}

.chord-card-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
}

.chord-card-roman {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.chord-gen-cta {
    padding: 18px 16px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
}

.chord-gen-cta-text {
    margin: 0 0 12px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text);
}

.chord-gen-cta-btn {
    display: inline-block;
    padding: 10px 18px;
    font-size: 0.875rem;
    font-weight: 600;
    color: #0a0a0a;
    background: var(--primary);
    border: 1px solid var(--primary);
    border-radius: var(--radius);
    text-decoration: none;
    transition: background 0.2s;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.chord-gen-cta-btn:hover {
    background: #1ea34e;
    color: #0a0a0a;
}

.chord-gen-banner-slot {
    width: 100%;
    max-width: 520px;
    box-sizing: border-box;
}

.chord-gen-banner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 6px;
    padding: 16px 20px;
    width: 100%;
    box-sizing: border-box;
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
}

.chord-gen-banner:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

@media (max-width: 768px) {
    .chord-gen-container { padding: 24px 20px; }
    .chord-gen-controls { gap: 20px 24px; margin-bottom: 20px; }
    .chord-cards { grid-template-columns: repeat(2, 1fr); gap: 10px; }
}

@media (max-width: 480px) {
    .chord-gen-container {
        padding: 20px 16px;
        padding-left: max(16px, env(safe-area-inset-left));
        padding-right: max(16px, env(safe-area-inset-right));
    }
    .chord-gen-title { font-size: 1.25rem; }
    .chord-gen-controls {
        grid-template-columns: 1fr 1fr;
        gap: 16px 20px;
        margin-bottom: 20px;
    }
    .chord-cards { grid-template-columns: repeat(2, 1fr); }
    .chord-card-name { font-size: 1.1rem; }
}