/* ============================================
   DISCOVERY VISUAL - Split-Pane HTML to Markdown
   Shows the transformation from messy HTML to clean AI-ready markdown.
   Uses only design system variables from variables.css.
   ============================================ */

.md-transform {
    background: var(--glass-white-5);
    backdrop-filter: var(--blur-md);
    border: 1px solid var(--glass-white-10);
    border-radius: var(--radius-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.md-transform:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

/* Window chrome bar */
.md-transform-chrome {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-bottom: 1px solid var(--glass-white-10);
    background: var(--glass-white-3);
}

.md-transform-dots {
    display: flex;
    gap: 6px;
}

.md-transform-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--glass-white-10);
}

.md-transform-dot-red {
    background: #ff5f57;
}

.md-transform-dot-yellow {
    background: #febc2e;
}

.md-transform-dot-green {
    background: #28c840;
}

.md-transform-title {
    font-family: var(--font-family-mono);
    font-size: var(--text-xs);
    color: var(--text-disabled);
    flex: 1;
    text-align: center;
}

/* Split panes container */
.md-transform-panes {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 0;
    align-items: stretch;
    min-height: 420px;
}

/* Individual pane */
.md-transform-pane {
    display: flex;
    flex-direction: column;
}

.md-transform-pane-source {
    background: var(--bg-surface);
    border-right: 1px solid var(--glass-white-10);
}

.md-transform-pane-output {
    background: var(--bg-surface-raised);
}

/* Pane label bar */
.md-transform-label {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-bottom: 1px solid var(--glass-white-10);
    font-family: var(--font-family-mono);
    font-size: var(--text-xs);
    color: var(--text-disabled);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.md-transform-label-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.md-transform-label-dot-dim {
    background: var(--color-danger);
    opacity: 0.5;
}

.md-transform-label-dot-live {
    background: var(--color-success);
    animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* Code block */
.md-transform-code {
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-family: var(--font-family-mono);
    font-size: var(--text-xs);
    line-height: 1.6;
    padding: var(--space-3);
    flex: 1;
}

/* Individual code lines */
.md-line {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 1px 4px;
    border-radius: 2px;
}

/* Source pane: noise lines (struck-through clutter) */
.md-noise {
    color: var(--text-disabled);
    text-decoration: line-through;
    text-decoration-color: rgba(var(--color-danger-rgb, 249, 44, 92), 0.5);
    background: rgba(var(--color-danger-rgb, 249, 44, 92), 0.06);
}

/* Source pane: content lines (preserved) */
.md-content {
    color: var(--text-secondary);
}

/* Output pane: frontmatter delimiters and keys */
.md-frontmatter {
    color: var(--brand-primary-light);
    opacity: 0.7;
}

.md-frontmatter-key {
    color: var(--brand-primary-light);
    opacity: 0.8;
}

.md-frontmatter-val {
    color: var(--text-secondary);
    opacity: 1;
}

/* Output pane: heading */
.md-heading {
    color: var(--text-primary);
    font-weight: var(--font-semibold);
}

/* Output pane: body text */
.md-body {
    color: var(--text-secondary);
}

/* Output pane: blank line spacer */
.md-blank {
    height: 0.8em;
}

/* Center arrow between panes */
.md-transform-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-success);
    padding: 0 var(--space-2);
    background: var(--glass-white-3);
}

.md-transform-arrow svg {
    flex-shrink: 0;
}

/* Custom visual container inside FeatureShowcase */
.showcase-custom-visual {
    position: sticky;
    top: 6rem;
    align-self: start;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1023px) {
    .showcase-custom-visual {
        position: static;
    }
}

@media (max-width: 640px) {
    /* Stack panes vertically on small screens */
    .md-transform-panes {
        grid-template-columns: 1fr;
        min-height: auto;
    }

    .md-transform-pane-source {
        border-right: none;
        border-bottom: 1px solid var(--glass-white-10);
    }

    /* Arrow rotates to point down */
    .md-transform-arrow {
        padding: var(--space-1) 0;
    }

    .md-transform-arrow svg {
        transform: rotate(90deg);
    }

    .md-transform-code {
        font-size: 0.65rem;
    }
}