/* ---------------------------------------------------------------------------
   Showcase-only styles: page layout, demo panels, code blocks and swatches.
   Nothing in this file is part of the framework itself.
--------------------------------------------------------------------------- */

html {
  scroll-behavior: smooth;
  scroll-padding-top: 1.5rem;
}

body {
  margin: 0;
  min-height: 100vh;
  background-color: #0b0e13;
  background-image: radial-gradient(
      ellipse at 20% -10%,
      rgba(66, 92, 128, 0.35),
      transparent 55%
    ),
    radial-gradient(ellipse at 90% 0%, rgba(82, 47, 101, 0.25), transparent 50%),
    linear-gradient(180deg, #10151c 0%, #0b0e13 40%);
  background-attachment: fixed;
}

.page-header {
  padding: 3.5rem 2rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.page-header p {
  max-width: 46rem;
  line-height: 1.55;
}

.layout {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: 2.5rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem 5rem;
}

.sidebar {
  position: sticky;
  top: 1.5rem;
  align-self: start;
  max-height: calc(100vh - 3rem);
  overflow-y: auto;
  padding-right: 0.5rem;
}

.sidebar a {
  display: block;
  padding: 0.35rem 0.6rem;
  font-size: 0.85rem;
  letter-spacing: 0.15rem;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  border-left: 2px solid rgba(255, 255, 255, 0.15);
  transition: color 0.1s ease-in-out, border-color 0.1s ease-in-out,
    background-color 0.1s ease-in-out;
}

.sidebar a:hover {
  color: #fff;
  border-left-color: #fff;
  background-color: rgba(255, 255, 255, 0.08);
}

.sidebar .sidebar-group {
  margin: 1.1rem 0 0.3rem;
  padding-left: 0.6rem;
  font-size: 0.7rem;
  letter-spacing: 0.25rem;
  text-transform: uppercase;
  color: #fcedd3;
}

main {
  min-width: 0;
}

main section {
  margin-bottom: 4rem;
}

main section > p {
  max-width: 46rem;
  line-height: 1.55;
}

/* Rendered demo area */
.example {
  padding: 1.75rem;
  margin: 1.25rem 0 0;
  background-color: rgba(10, 13, 18, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.example.padded-bottom {
  padding-bottom: 3rem;
}

/* Code block below a demo */
.code-toggle {
  display: inline-block;
  margin: 0;
  padding: 0.3rem 0.9rem;
  font-size: 0.7rem;
  letter-spacing: 0.2rem;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-top: none;
  cursor: pointer;
}

.code-toggle:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
}

.code-block {
  display: none;
  margin: 0;
  padding: 1.1rem 1.25rem;
  background-color: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-top: none;
  overflow-x: auto;
}

.code-block.open {
  display: block;
}

.code-block code {
  font-family: "Consolas", "Monaco", "Courier New", monospace;
  font-size: 0.82rem;
  line-height: 1.55;
  color: #c9d4dd;
  letter-spacing: 0;
  white-space: pre;
}

/* Color swatches */
.swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(9.5rem, 1fr));
  gap: 0.8rem;
}

.swatch {
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.swatch .swatch-color {
  height: 3.4rem;
}

.swatch .swatch-info {
  padding: 0.45rem 0.6rem;
  background: rgba(0, 0, 0, 0.5);
}

.swatch .swatch-name {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.15rem;
  text-transform: uppercase;
  color: #fff;
}

.swatch .swatch-value {
  font-family: "Consolas", "Monaco", monospace;
  font-size: 0.72rem;
  color: #8d949b;
}

/* small helper rows inside demos */
.demo-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.demo-row:last-child {
  margin-bottom: 0;
}

.demo-stack {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 34rem;
}

.demo-note {
  font-size: 0.85rem;
  color: #8d949b;
  margin-top: 0.6rem;
}

/* composed example: character screen */
.demo-character {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 22rem);
  gap: 2rem;
}

@media (max-width: 900px) {
  .demo-character {
    grid-template-columns: 1fr;
  }
}

footer.page-footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  color: #8d949b;
}

footer.page-footer a {
  color: #fcedd3;
}

@media (max-width: 800px) {
  .layout {
    grid-template-columns: 1fr;
    padding: 0 1.25rem 4rem;
  }

  .sidebar {
    position: static;
    max-height: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
  }

  .sidebar .sidebar-group {
    width: 100%;
  }

  .page-header {
    padding: 2rem 1.25rem 1.5rem;
  }
}