/* Brand document and downloadable collections. */
.brand-page {
  padding-block: 60px 90px;
}
.brand-page > h1 {
  font-size: 64px;
  margin: 20px 0;
}
.brand-page > p:last-of-type {
  max-width: 660px;
  color: var(--muted);
}
.brand-page > nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 2.5rem 0 4rem;
}
.brand-page > nav a {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-block: 1px solid var(--line);
  padding: 1.25rem 0;
  font-weight: 600;
}
.brand-page > nav span {
  color: var(--muted);
}
.brand-page > section {
  width: auto;
  max-width: none;
  margin: 0;
}
.brand-variant {
  padding: 3rem 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 2rem;
}
.brand-variant h2,
.brand-guidance h2,
.theme-lab h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.04em;
  margin: 0.5rem 0 1rem;
}
.brand-variant > p:not(.eyebrow) {
  max-width: 44rem;
  color: var(--muted);
  line-height: 1.65;
}
.brand-variant > p:last-child {
  margin-top: 35px;
}
.brand-variant > nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  margin: 1.5rem 0 2rem;
}
.brand-assets {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 45px;
}
.brand-assets figure {
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}
.brand-assets img {
  display: block;
  height: 220px;
  width: 100%;
  padding: 40px 45px;
  object-fit: contain;
  background: #f6f8fb;
}
.brand-assets img[src*="logo"] {
  padding: 45px 10%;
}
.brand-assets img[data-appearance="dark"] {
  background: #13171d;
}
#evergreen-frost .brand-assets img {
  background: #f5f8f7;
}
#evergreen-frost .brand-assets img[data-appearance="dark"] {
  background: #0e1814;
}
.brand-assets figcaption {
  padding: 16px 22px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}
.brand-assets figcaption a {
  padding-block: 12px;
  text-decoration: underline;
  text-underline-offset: 4px;
  color: var(--accent);
}
.palette {
  display: flex;
  gap: 25px;
  flex-wrap: wrap;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}
.palette li {
  display: flex;
  align-items: center;
  gap: 10px;
}
.palette li::before {
  content: "";
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--swatch);
}
.brand-guidance {
  padding: 3rem 0 1rem;
  border-top: 1px solid var(--line);
}
.brand-guidance p {
  max-width: 46rem;
  color: var(--muted);
  line-height: 1.65;
}

/* Preview controls are native radio groups, scoped to the illustration below. */
.theme-lab {
  border-top: 1px solid var(--line);
  padding: 3rem 0 4rem;
}
.theme-lab > header {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 2rem;
  align-items: end;
}
.theme-lab h2 {
  margin-bottom: 0;
}
.theme-lab > header > p {
  color: var(--muted);
  max-width: 30rem;
}
.theme-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: space-between;
  margin: 2rem 0 1.5rem;
}
.theme-controls fieldset {
  border: 0;
  padding: 0;
  margin: 0;
  min-width: 0;
}
.theme-controls legend {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 0.6rem;
}
.theme-controls label {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 0.7rem 1rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0.15rem 0.35rem 0;
}
.theme-controls label:has(:checked) {
  background: var(--tint);
  border-color: var(--accent);
}
.theme-controls label:has(:focus-visible) {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}
.theme-controls input {
  margin: 0;
  width: 14px;
  height: 14px;
  accent-color: var(--accent);
}
.theme-controls input:focus-visible {
  outline: none;
}
#preview-status {
  color: var(--muted);
  margin-top: 0.75rem;
}

/* Only this component responds to the picker. The surrounding page stays system-adaptive. */
.theme-preview {
  --p-bg: #f6f8fb;
  --p-surface: #fff;
  --p-ink: #202833;
  --p-muted: #5e6b7b;
  --p-line: #dde3ec;
  --p-accent: #4e6a91;
  --p-tint: #edf1f7;
  background: var(--p-bg);
  color: var(--p-ink);
  border: 1px solid var(--p-line);
  border-radius: 12px;
  overflow: hidden;
  min-width: 0;
}
.theme-preview[data-palette="evergreen-frost"] {
  --p-bg: #f5f8f7;
  --p-ink: #172820;
  --p-muted: #53665d;
  --p-line: #d5e2db;
  --p-accent: #176448;
  --p-tint: #e0eee7;
}
.theme-preview[data-appearance="dark"] {
  --p-bg: #13171d;
  --p-surface: #1e242d;
  --p-ink: #edf1f7;
  --p-muted: #a9b5c5;
  --p-line: #374352;
  --p-accent: #a5bedd;
  --p-tint: #2a3544;
}
.theme-preview[data-palette="evergreen-frost"][data-appearance="dark"] {
  --p-bg: #0e1814;
  --p-surface: #17251e;
  --p-ink: #eef6f1;
  --p-muted: #a6bbb0;
  --p-line: #30453a;
  --p-accent: #91e4b1;
  --p-tint: #233e2e;
}
.theme-preview [data-logo="dark"],
.theme-preview[data-appearance="dark"] [data-logo="light"] {
  display: none;
}
.theme-preview[data-appearance="dark"] [data-logo="dark"] {
  display: block;
}
.theme-preview > header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--p-line);
  padding: 1.4rem 2rem;
  background: var(--p-surface);
}
.theme-preview > header img {
  width: 130px;
}
.theme-preview > header span {
  font-size: 0.875rem;
  color: var(--p-muted);
  letter-spacing: 0.06em;
}
.theme-preview > hgroup {
  padding: 2.5rem 2rem;
}
.theme-preview .eyebrow,
.theme-preview em {
  color: var(--p-accent);
}
.theme-preview h3 {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1.1;
  margin: 1rem 0;
}
.theme-preview > hgroup > p:last-child {
  color: var(--p-muted);
}
.preview-products {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 0 2rem 2rem;
}
.preview-products article {
  min-width: 0;
  border: 1px solid var(--p-line);
  background: var(--p-surface);
  padding: 1.3rem;
  border-radius: 6px;
}
.preview-products span {
  font-size: 0.875rem;
  letter-spacing: 0.1em;
  color: var(--p-accent);
}
.preview-products h4 {
  font-weight: 600;
  font-size: 1.1rem;
  margin: 0.8rem 0;
  line-height: 1.4;
}
.preview-products p {
  color: var(--p-muted);
  line-height: 1.6;
}
.preview-products svg {
  fill: none;
  stroke: var(--p-accent);
  stroke-width: 2;
  height: 40px;
  width: 100%;
}

@media (prefers-color-scheme: dark) {
  .theme-preview[data-appearance="system"] {
    --p-bg: #13171d;
    --p-surface: #1e242d;
    --p-ink: #edf1f7;
    --p-muted: #a9b5c5;
    --p-line: #374352;
    --p-accent: #a5bedd;
    --p-tint: #2a3544;
  }
  .theme-preview[data-palette="evergreen-frost"][data-appearance="system"] {
    --p-bg: #0e1814;
    --p-surface: #17251e;
    --p-ink: #eef6f1;
    --p-muted: #a6bbb0;
    --p-line: #30453a;
    --p-accent: #91e4b1;
    --p-tint: #233e2e;
  }
  .theme-preview[data-appearance="system"] [data-logo="light"] {
    display: none;
  }
  .theme-preview[data-appearance="system"] [data-logo="dark"] {
    display: block;
  }
}

@media (max-width: 850px) {
  .preview-products {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .brand-page {
    padding-block: 35px 55px;
  }
  .brand-page > h1 {
    font-size: 46px;
  }
  .brand-assets {
    grid-template-columns: 1fr;
    margin-top: 30px;
    gap: 18px;
  }
  .brand-assets img,
  .brand-assets img[src*="logo"] {
    height: 190px;
    padding: 35px;
  }
  .brand-assets figcaption {
    padding: 15px;
  }
  .palette {
    gap: 15px;
  }
}

@media (max-width: 700px) {
  .theme-lab > header {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .theme-preview > header,
  .theme-preview > hgroup {
    padding: 1.5rem;
  }
  .preview-products {
    padding: 0 1.5rem 1.5rem;
  }
  .theme-controls {
    gap: 1rem;
  }
  .theme-controls label {
    padding: 0.65rem 0.8rem;
  }
}

@media (max-width: 600px) {
  .brand-page > nav {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .brand-variant > nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
  }
  .brand-assets figcaption {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.65rem;
  }
}