/**
 * CODEX AUDIOWORKS — Audio Demonstration System Styling
 * Minimal, Compact, Keyboard-Accessible, Dark Theme
 */

.cdx-demo-section {
    margin: 2.5rem 0;
}

.cdx-demo-widget {
    background: var(--surface-card, #0f1118);
    border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.08));
    border-radius: var(--radius-lg, 12px);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.cdx-demo-widget.cdx-is-playing {
    border-color: rgba(0, 229, 255, 0.45);
    box-shadow: 0 0 25px rgba(0, 229, 255, 0.12);
}

.cdx-demo-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.cdx-demo-meta {
    flex: 1;
    min-width: 220px;
}

.cdx-demo-title-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.35rem;
    flex-wrap: wrap;
}

.cdx-demo-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary, #ffffff);
    margin: 0;
}

.cdx-demo-category-badge {
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 0.65rem;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    background: rgba(0, 229, 255, 0.12);
    color: var(--accent-cyan, #00e5ff);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.cdx-demo-desc {
    font-size: 0.875rem;
    color: var(--text-muted, #94a3b8);
    margin: 0;
    line-height: 1.5;
}

/* Mode A: Synchronized A/B Comparison Switch */
.cdx-ab-switch-group {
    display: inline-flex;
    background: var(--bg-base, #08090d);
    border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.1));
    border-radius: 8px;
    padding: 3px;
    gap: 3px;
}

.cdx-ab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted, #94a3b8);
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.45rem 0.9rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
    min-height: 36px;
}

.cdx-ab-btn:hover {
    color: var(--text-primary, #ffffff);
}

.cdx-ab-btn.active {
    background: var(--accent-cyan, #00e5ff);
    color: #050608;
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

.cdx-ab-btn:focus-visible {
    outline: 2px solid var(--accent-cyan, #00e5ff);
    outline-offset: 2px;
}

/* Mode B: Instrument Presets List / Chips */
.cdx-presets-nav {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    scrollbar-width: thin;
}

.cdx-preset-btn {
    background: var(--bg-base, #08090d);
    border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.1));
    color: var(--text-secondary, #cbd5e1);
    font-size: 0.8rem;
    padding: 0.4rem 0.85rem;
    border-radius: 20px;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.15s ease;
}

.cdx-preset-btn:hover {
    border-color: var(--accent-cyan, #00e5ff);
    color: var(--text-primary, #ffffff);
}

.cdx-preset-btn.active {
    background: rgba(0, 229, 255, 0.15);
    border-color: var(--accent-cyan, #00e5ff);
    color: var(--accent-cyan, #00e5ff);
    font-weight: 600;
}

/* Transport Controls & Scrub Bar */
.cdx-transport-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--bg-base, #08090d);
    border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.05));
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

.cdx-play-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent-cyan, #00e5ff);
    color: #050608;
    border: none;
    cursor: pointer;
    font-weight: bold;
    flex-shrink: 0;
    transition: transform 0.1s ease, box-shadow 0.2s ease;
}

.cdx-play-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.45);
}

.cdx-play-btn:focus-visible {
    outline: 2px solid #ffffff;
    outline-offset: 2px;
}

.cdx-play-icon {
    font-size: 1rem;
    line-height: 1;
    margin-left: 2px; /* optical center */
}

.cdx-is-playing .cdx-play-icon {
    margin-left: 0;
}

.cdx-play-label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.cdx-progress-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.cdx-progress-track {
    position: relative;
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    cursor: pointer;
    outline: none;
}

.cdx-progress-track:focus-visible {
    box-shadow: 0 0 0 2px var(--accent-cyan, #00e5ff);
}

.cdx-progress-fill {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0%;
    background: linear-gradient(90deg, #00b4d8, #00e5ff);
    border-radius: 4px;
    pointer-events: none;
    transition: width 0.05s linear;
}

.cdx-time-display {
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 0.75rem;
    color: var(--text-muted, #94a3b8);
    flex-shrink: 0;
}

/* Parameters Drawer */
.cdx-settings-section {
    margin-top: 1rem;
    border-top: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.05));
    padding-top: 0.75rem;
}

.cdx-settings-toggle {
    background: none;
    border: none;
    color: var(--text-muted, #94a3b8);
    font-size: 0.8rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0;
}

.cdx-settings-toggle:hover {
    color: var(--accent-cyan, #00e5ff);
}

.cdx-settings-drawer {
    display: none;
    margin-top: 0.75rem;
    background: var(--bg-base, #08090d);
    border-radius: 6px;
    padding: 1rem;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 0.75rem;
}

.cdx-settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.75rem;
}

.cdx-setting-item {
    display: flex;
    flex-direction: column;
}

.cdx-setting-key {
    color: var(--text-muted, #64748b);
    font-size: 0.7rem;
    text-transform: uppercase;
}

.cdx-setting-val {
    color: var(--accent-cyan, #00e5ff);
    font-weight: 600;
}

/* Pre-Release Empty State */
.cdx-demo-empty-state {
    background: var(--surface-card, #0f1118);
    border: 1px dashed var(--border-subtle, rgba(255, 255, 255, 0.12));
    border-radius: var(--radius-lg, 12px);
    padding: 2.5rem 2rem;
    text-align: center;
    margin: 2rem 0;
}

.cdx-empty-icon {
    font-size: 2rem;
    color: var(--accent-cyan, #00e5ff);
    margin-bottom: 0.75rem;
}

.cdx-empty-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary, #ffffff);
}

.cdx-empty-desc {
    font-size: 0.9rem;
    color: var(--text-muted, #94a3b8);
    max-width: 540px;
    margin: 0 auto 1.5rem auto;
    line-height: 1.6;
}

.cdx-empty-status-tag {
    display: inline-block;
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 0.75rem;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    background: rgba(0, 229, 255, 0.08);
    color: var(--accent-cyan, #00e5ff);
    border: 1px solid rgba(0, 229, 255, 0.2);
}

@media (max-width: 640px) {
    .cdx-demo-header {
        flex-direction: column;
        align-items: stretch;
    }
    .cdx-ab-switch-group {
        width: 100%;
        display: flex;
    }
    .cdx-ab-btn {
        flex: 1;
        text-align: center;
    }
    .cdx-transport-row {
        flex-wrap: wrap;
    }
    .cdx-time-display {
        width: 100%;
        text-align: right;
    }
}