/* Showcase page styles. Synced to the same visual language as the other 4 docs sites — same
   fonts, same design tokens (--color-*, --space-*, --radius-*, --text-*), same components
   (.steps, .callout, .card-grid, plain <table>) from ../../assets/css/styles.css. This file adds
   only what that shared stylesheet doesn't already have: the category grid, status badges, the
   full-viewport overlay shell, and a dark-mode override (scoped to this page only). */

/* ---------- Layout: full width, compact hero ---------- */
.showcase-body .content-wrap {
    max-width: none;
    grid-template-columns: 1fr;
    padding: var(--space-6) var(--space-6) var(--space-8);
}

.showcase-body .content {
    max-width: none;
}

.showcase-body .hero {
    max-width: 90ch;
    position: relative;
    padding: 0 0 var(--space-5);
    margin-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.showcase-body .hero-title {
    font-size: var(--text-3xl);
    margin: var(--space-3) 0 var(--space-2);
}

.showcase-body .hero-lead {
    font-size: var(--text-sm);
    line-height: 1.55;
    margin: 0 0 var(--space-4);
    max-width: 75ch;
}

.atlas-hint code {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    background: var(--color-bg-code-inline);
    padding: 1px 5px;
    border-radius: var(--radius-sm);
}

/* ---------- Status legend + theme toggle ---------- */
.status-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-subtle);
}

.status-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.status-swatch {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

.status-swatch.status-built { background: var(--color-accent); }
.status-swatch.status-partial { background: var(--color-warning); }
.status-swatch.status-not-built { background: transparent; border: 1.5px dashed var(--color-border-strong); }
.status-swatch.status-external { background: var(--color-text-subtle); }

/* ---------- Status badge/pill (grid badges + overlay) ---------- */
.status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: 999px;
}

.status[data-status='built'] { background: var(--color-accent-subtle); color: var(--color-accent); }
.status[data-status='partial'] { background: var(--color-warning-subtle); color: var(--color-warning); }
.status[data-status='not-built'] { background: var(--color-bg-muted); color: var(--color-text-subtle); }
.status[data-status='external'] { background: var(--color-bg-muted); color: var(--color-text-muted); }

/* ---------- Capability grid ---------- */
.capability-category-header {
    display: flex;
    align-items: baseline;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.capability-category-number {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    color: var(--category-color, var(--color-accent));
    background: color-mix(in srgb, var(--category-color, var(--color-accent)) 16%, var(--color-bg));
    padding: 3px 8px;
    border-radius: var(--radius-sm);
}

.capability-category-name {
    font-size: var(--text-lg);
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--category-color, var(--color-accent));
    margin: 0;
}

.capability-category-subtitle {
    font-size: var(--text-xs);
    color: var(--color-text-subtle);
    font-style: italic;
}

.capability-category { margin-bottom: var(--space-8); }

.capability-boxes {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-3);
}

/* A capability box is a .card with a category-colored left accent border, per the site's
   existing left-accent-border convention (see .callout, .step). */
.capability-box {
    position: relative;
    text-align: left;
    padding: var(--space-4);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--category-color, var(--color-accent));
    border-radius: var(--radius-lg);
    background: color-mix(in srgb, var(--category-color, var(--color-accent)) 12%, var(--color-bg));
    cursor: pointer;
    font: inherit;
    color: inherit;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease, background 0.15s ease;
}

.capability-box:hover {
    background: color-mix(in srgb, var(--category-color, var(--color-accent)) 20%, var(--color-bg));
}

.capability-box:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.capability-box:focus-visible {
    outline: 2px solid var(--category-color, var(--color-accent));
    outline-offset: 2px;
}

.capability-box-name {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text);
}

.capability-box.is-active {
    box-shadow: 0 0 0 2px var(--category-color, var(--color-accent));
}

.capability-box[data-status='partial'] {
    background: var(--color-bg-subtle);
}

.capability-box[data-status='not-built'] {
    background: var(--color-bg-muted);
    border-left-style: dashed;
    border-color: var(--color-border);
    color: var(--color-text-subtle);
    box-shadow: none;
}

.capability-box[data-status='not-built']:hover {
    transform: none;
    box-shadow: none;
}

.capability-box[data-status='external'] {
    background: var(--color-bg-muted);
    color: var(--color-text-muted);
}

.capability-box-badge {
    position: absolute;
    top: 6px;
    right: 8px;
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-subtle);
}

/* ============================================================
   OVERLAY — full-viewport, same URL, no navigation, same
   card/callout/table/steps visual language as the rest of the site
   ============================================================ */

.overlay-backdrop {
    position: fixed;
    inset: 0;
    z-index: 190;
    background: rgba(15, 23, 42, 0.5);
}

.overlay-backdrop[hidden] { display: none; }

.overlay {
    position: fixed;
    top: clamp(0px, 4vh, 40px);
    bottom: clamp(0px, 4vh, 40px);
    left: 50%;
    transform: translateX(-50%);
    width: min(880px, 92vw);
    z-index: 200;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
}

.overlay[hidden] { display: none; }

.overlay-inner {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-6) var(--space-8) var(--space-10);
}

.overlay-topbar {
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-8);
    margin: calc(var(--space-6) * -1) calc(var(--space-8) * -1) var(--space-6);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-text-subtle);
}

.overlay-close {
    font-size: 20px;
    line-height: 1;
    background: none;
    border: none;
    color: var(--color-text-subtle);
    cursor: pointer;
    padding: 4px 8px;
}

.overlay-close:hover { color: var(--color-danger); }

.overlay-name {
    font-size: var(--text-3xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text);
    margin: var(--space-3) 0 var(--space-2);
}

.overlay-hook {
    font-size: var(--text-lg);
    line-height: 1.55;
    color: var(--color-text-muted);
    max-width: 68ch;
    margin: 0 0 var(--space-8);
}

.overlay-section { margin-bottom: var(--space-10); }

.overlay-section-title {
    font-size: var(--text-lg);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin: 0 0 var(--space-4);
    color: var(--color-text);
}

.overlay-tech-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-accent);
    background: var(--color-accent-subtle);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-3);
}

/* The scenario and flow sections both reuse the shared .steps/.step numbered-timeline
   component (see styles.css) instead of a bespoke diagram — same look as every onboarding
   chapter's step-by-step walkthroughs. */

.overlay-narrative p {
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--color-text);
    margin: 0 0 var(--space-4);
}

/* Guides a skimming reader's eye straight to the load-bearing phrase in each paragraph,
   instead of making them read every word to find it. */
.overlay-narrative mark.hl {
    background: var(--color-accent-subtle);
    color: var(--color-accent-hover, var(--color-accent));
    font-weight: 700;
    padding: 0 3px;
    border-radius: 3px;
}

/* Engineering facts render as a .card-grid of short concept cards (title + one-line
   explanation) instead of a wall of bulleted prose — reuses the site's existing card pattern. */
.overlay-closing {
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border);
}

.overlay-view-toggle {
    display: inline-flex;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--space-5);
}

.overlay-view-toggle button {
    font: inherit;
    font-size: var(--text-sm);
    font-weight: 600;
    padding: var(--space-2) var(--space-4);
    border: 0;
    background: var(--color-bg);
    color: var(--color-text-muted);
    cursor: pointer;
}

.overlay-view-toggle button[aria-pressed='true'] {
    background: var(--color-accent);
    color: var(--color-text-inverse);
}

.overlay-doclink { font-size: var(--text-sm); }

.overlay-glossary {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.glossary-chip { position: relative; display: inline-block; }

.glossary-chip button {
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text-muted);
    cursor: default;
}

.glossary-chip-tooltip {
    position: absolute;
    bottom: calc(100% + 6px);
    left: 0;
    width: 220px;
    z-index: 100;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    font-size: 12px;
    color: var(--color-text-muted);
    line-height: 1.4;
}

.glossary-chip-tooltip strong {
    display: block;
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 11px;
    margin-bottom: 3px;
}

/* No dark mode — this page stays light, matching every other docs site (none of them have a
   dark theme either). */

@media (max-width: 768px) {
    .overlay { top: 0; bottom: 0; left: 0; width: 100vw; transform: none; border-radius: 0; }
    .overlay-inner { padding: var(--space-5) var(--space-4) var(--space-8); }
    .overlay-topbar { padding: var(--space-3) var(--space-4); margin: calc(var(--space-5) * -1) calc(var(--space-4) * -1) var(--space-5); }
}

@media (max-width: 640px) {
    .capability-boxes { grid-template-columns: 1fr 1fr; }
}