/* Landing-page layout for the gh-pages showcase. Color tokens, fonts, the page
   background and the .appbar/.brand chrome all come from the app's styles.css
   (linked first), so this file only adds the marketing-page layout the app
   doesn't have. All colors reference the shared --bg/--accent/… variables so the
   page follows the same palette and light/dark mode as the embedded form. */

.lp-nav {
  margin-left: auto;
  display: flex;
  gap: 18px;
}
.lp-nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 560;
  transition: color 0.15s ease;
}
.lp-nav a:hover {
  color: var(--accent);
}

.lp-main {
  padding: clamp(28px, 6vh, 64px) 0 64px;
}

/* Narrow reading column for the text sections (hero, install, define). */
.lp-container {
  max-width: 860px;
  margin: 0 auto;
}

/* Hero ---------------------------------------------------------------------- */
.lp-hero {
  text-align: center;
  padding: clamp(16px, 4vh, 40px) 0 clamp(24px, 5vh, 48px);
}
.lp-title {
  margin: 0 0 18px;
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  line-height: 1.12;
  font-weight: 680;
  letter-spacing: -0.02em;
}
.lp-tagline {
  margin: 0 auto;
  max-width: 640px;
  color: var(--text-dim);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.6;
}
.lp-hero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.lp-btn {
  display: inline-flex;
  align-items: center;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--card);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.05s ease;
}
.lp-btn:hover {
  border-color: var(--accent);
}
.lp-btn:active {
  transform: translateY(1px);
}
.lp-btn--primary {
  border-color: transparent;
  background: var(--accent);
  color: #fff;
}
.lp-btn--primary:hover {
  background: var(--accent-hover);
  border-color: transparent;
}

/* Sections ------------------------------------------------------------------ */
.lp-section {
  padding: clamp(28px, 5vh, 48px) 0;
  border-top: 1px solid var(--border);
}
.lp-h2 {
  margin: 0 0 14px;
  font-size: clamp(1.4rem, 2.4vw, 1.8rem);
  font-weight: 660;
  letter-spacing: -0.01em;
}
.lp-h3 {
  margin: 26px 0 10px;
  font-size: 1.1rem;
  font-weight: 620;
}
.lp-section p {
  margin: 0 0 14px;
  color: var(--text-dim);
  line-height: 1.6;
}
.lp-section code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.88em;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1px 6px;
}

.lp-code {
  margin: 0 0 16px;
  padding: 16px 18px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  line-height: 1.55;
}
.lp-code code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.86rem;
  color: var(--text);
  background: none;
  border: 0;
  padding: 0;
  white-space: pre;
}

.lp-kinds {
  margin: 0 0 16px;
  padding-left: 22px;
  color: var(--text-dim);
  line-height: 1.7;
}

.lp-note {
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* Showcase ------------------------------------------------------------------ */
/* The live form breaks out of the 860px reading column into a wider band so the
   embedded app (which itself widens for illustration panels) has room. */
.lp-showcase {
  /* Break out of the body's horizontal page gutter so the live form spans the
     full viewport width (mirrors how .appbar goes full-bleed). */
  margin: 0 calc(-1 * var(--page-gutter, clamp(16px, 4vw, 40px)));
  padding: clamp(28px, 5vh, 48px) var(--page-gutter, clamp(16px, 4vw, 40px));
  border-top: 1px solid var(--border);
}
.lp-showcase-inner {
  max-width: none;
  margin: 0 auto;
}
.lp-showcase p {
  margin: 0 0 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

.lp-tabs {
  display: flex;
  gap: 8px;
  margin: 18px 0 10px;
  flex-wrap: wrap;
}
.lp-tab {
  appearance: none;
  padding: 9px 18px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: var(--card);
  color: var(--text-dim);
  font: inherit;
  font-weight: 560;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.lp-tab:hover {
  color: var(--text);
  border-color: var(--accent);
}
.lp-tab[aria-selected="true"] {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}
.lp-tab:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.lp-example-desc {
  min-height: 1.6em;
  font-size: 0.95rem;
}

.lp-frame-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--bg);
}
.lp-frame {
  display: block;
  width: 100%;
  height: 760px;
  border: 0;
}

/* Footer -------------------------------------------------------------------- */
.lp-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 40px;
  text-align: center;
}
.lp-footer p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.9rem;
}
.lp-footer a {
  color: var(--accent);
  text-decoration: none;
}
.lp-footer a:hover {
  text-decoration: underline;
}