/* Trail Notes · sitewide */

/* Trail Notes · upgraded trail guide presentation
   Extends site tokens; self-contained for /trails/* pages */

:root {
  --tn-guide-measure: 46rem;
  --tn-rail: min(100% - 2rem, 72rem);
  --tn-stat: clamp(1.15rem, 2.4vw, 1.55rem);
  --tn-ink-faint: color-mix(in srgb, var(--color-ink-muted) 55%, transparent);
}

/* Layout fallbacks (Astro CSS is attribute-scoped; rebuilt pages omit cids) */
.shell {
  width: min(100% - 2rem, var(--shell));
  margin-inline: auto;
}
.skip-link {
  position: absolute;
  left: -9999px;
  top: var(--space-3);
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  color: var(--color-brand-ink);
  text-decoration: none;
}
.skip-link:focus { left: var(--space-4); }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--color-bg) 72%, transparent);
  border-bottom: 1px solid var(--color-line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.75rem;
  gap: var(--space-5);
}
.brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-brand-ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-5);
  justify-content: flex-end;
}
.nav a {
  color: var(--color-ink-muted);
  text-decoration: none;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.nav a:hover,
.nav a.on { color: var(--color-accent); }
.is-hero-chrome .site-header {
  position: absolute;
  left: 0;
  right: 0;
  background: transparent;
  border-bottom: 0;
  backdrop-filter: none;
}
.is-hero-chrome .brand,
.is-hero-chrome .nav a {
  color: var(--color-snow);
}
.is-hero-chrome .nav a { opacity: 0.82; }
.is-hero-chrome .nav a:hover,
.is-hero-chrome .nav a.on {
  opacity: 1;
  color: var(--color-snow);
}
.site-footer {
  margin-top: var(--space-9);
  border-top: 1px solid var(--color-line);
  padding: var(--space-7) 0;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
}
.footer-brand {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-brand);
}
.footer-note {
  margin: 0;
  color: var(--color-ink-muted);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* —— Hero —— */
.tn-hero {
  position: relative;
  min-height: min(72vh, 38rem);
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--color-bg-deep);
  color: var(--color-snow);
}
.tn-hero__media {
  position: absolute;
  inset: 0;
}
.tn-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.02);
  animation: tn- ken 18s var(--ease-out) both;
}
@keyframes tn-ken {
  from { transform: scale(1.06); }
  to { transform: scale(1.0); }
}
@media (prefers-reduced-motion: reduce) {
  .tn-hero__media img { animation: none; transform: none; }
}
.tn-hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--color-hero-veil) 55%, transparent) 0%, transparent 48%),
    linear-gradient(180deg, transparent 18%, color-mix(in srgb, var(--color-hero-veil) 88%, transparent) 100%);
  pointer-events: none;
}
.tn-hero__copy {
  position: relative;
  z-index: 1;
  width: var(--tn-rail);
  margin-inline: auto;
  padding: 5.5rem 0 var(--space-7);
}
.tn-hero__role {
  margin: 0 0 var(--space-3);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-snow) 78%, transparent);
}
.tn-hero__copy h1 {
  margin: 0;
  max-width: 16ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.2vw, 3.35rem);
  font-weight: 600;
  line-height: 1.08;
  color: var(--color-snow);
  letter-spacing: -0.02em;
  animation: tn-rise 0.7s var(--ease-out) both;
}
@keyframes tn-rise {
  from { opacity: 0; transform: translateY(0.7rem); }
  to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .tn-hero__copy h1 { animation: none; }
}
.tn-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.85rem;
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--color-snow) 72%, transparent);
}
.tn-hero__chips li:not(:last-child)::after {
  content: "·";
  margin-left: 0.85rem;
  opacity: 0.55;
}
.tn-hero__summary {
  max-width: 42ch;
  margin: var(--space-4) 0 0;
  color: color-mix(in srgb, var(--color-snow) 90%, transparent);
  font-size: 1.02rem;
  line-height: 1.55;
}
.tn-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: var(--space-5);
}
.tn-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--color-snow);
  color: var(--color-snow);
  text-decoration: none;
  font-size: 0.9rem;
  background: transparent;
  cursor: pointer;
  font: inherit;
  transition: background var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}
.tn-btn:hover {
  background: color-mix(in srgb, var(--color-snow) 14%, transparent);
  color: var(--color-snow);
}
.tn-btn--ghost {
  border-color: color-mix(in srgb, var(--color-snow) 42%, transparent);
}

/* —— Stats strip —— */
.tn-stats {
  border-bottom: 1px solid var(--color-line);
  background: color-mix(in srgb, var(--color-surface) 70%, var(--color-bg));
}
.tn-stats__inner {
  width: var(--tn-rail);
  margin-inline: auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(7.5rem, 1fr));
  gap: var(--space-4);
  padding: var(--space-5) 0;
}
.tn-stat dt {
  margin: 0;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}
.tn-stat dd {
  margin: 0.2rem 0 0;
  font-family: var(--font-display);
  font-size: var(--tn-stat);
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}
.tn-stat dd small {
  font-size: 0.72em;
  font-weight: 500;
  color: var(--color-ink-muted);
}

/* —— Blockers (tripbook / P0) —— */
.tn-blockers {
  width: var(--tn-rail);
  margin: var(--space-6) auto 0;
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}
.tn-blockers__kicker {
  margin: 0 0 var(--space-2);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.tn-blockers h2 {
  margin: 0 0 var(--space-2);
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}
.tn-blockers__lede {
  margin: 0 0 var(--space-4);
  max-width: 48ch;
  color: var(--color-ink-muted);
}
.tn-blocker-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}
.tn-blocker-list li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: var(--space-3);
  align-items: start;
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-line);
}
.tn-blocker-list .num {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-accent);
}
.tn-blocker-list strong {
  display: block;
  margin-bottom: 0.15rem;
}
.tn-blocker-list p {
  margin: 0;
  color: var(--color-ink-muted);
  font-size: 0.95rem;
}

/* —— Chrome: tabs + TOC —— */
.tn-chrome {
  width: var(--tn-rail);
  margin-inline: auto;
  padding-top: var(--space-5);
}
.tn-tabs {
  display: flex;
  gap: 0.25rem;
  margin: 0 0 var(--space-3);
}
.tn-tab {
  appearance: none;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--color-ink-muted);
  padding: 0.45rem 0.85rem;
  font: inherit;
  font-size: 0.92rem;
  cursor: pointer;
}
.tn-tab.is-on {
  color: var(--color-ink);
  border-bottom-color: var(--color-accent);
}
.tn-tab:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.tn-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1rem;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-line);
  position: sticky;
  top: 0;
  z-index: 8;
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(12px);
}
.tn-toc a {
  font-size: 0.82rem;
  color: var(--color-ink-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.tn-toc a:hover,
.tn-toc a.is-active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

/* —— Body / prose upgrades —— */
.tn-body {
  width: var(--tn-rail);
  margin-inline: auto;
  padding: var(--space-6) 0 var(--space-7);
  max-width: min(100%, var(--tn-guide-measure));
}
.tn-body[hidden],
.tn-map[hidden] {
  display: none !important;
}
.tn-body h2 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
  scroll-margin-top: 5rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.2vw, 1.7rem);
  font-weight: 600;
}
.tn-body h2:first-child {
  margin-top: 0;
}
.tn-body p {
  max-width: 48ch;
}
.tn-body ul,
.tn-body ol {
  padding-left: 1.15rem;
  max-width: 48ch;
}
.tn-body li + li {
  margin-top: 0.25rem;
}

/* Gallery rail: first gallery section images become horizontal */
.tn-gallery-rail {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: var(--space-2) 0 var(--space-4);
  margin: 0 0 var(--space-4);
  -webkit-overflow-scrolling: touch;
}
.tn-gallery-rail figure {
  flex: 0 0 min(78%, 22rem);
  margin: 0;
  scroll-snap-align: start;
}
.tn-gallery-rail img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  margin: 0;
  border-radius: 0;
}
.tn-gallery-rail figcaption {
  margin-top: 0.4rem;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
}

/* Tables */
.tn-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: var(--space-4) 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}
.tn-body table {
  width: 100%;
  min-width: 28rem;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 0;
}
.tn-body th,
.tn-body td {
  border-bottom: 1px solid var(--color-line);
  padding: 0.55rem 0.45rem;
  text-align: left;
  vertical-align: top;
}
.tn-body thead th {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  font-weight: 500;
  border-bottom-color: color-mix(in srgb, var(--color-line) 80%, var(--color-ink));
}
.tn-body tbody tr:hover td {
  background: color-mix(in srgb, var(--color-surface) 65%, transparent);
}

/* Checklist */
.tn-body .contains-task-list,
.tn-body ul.tn-checklist {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0;
  max-width: 36rem;
}
.tn-body .task-list-item,
.tn-checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-line);
  font-size: 0.98rem;
}
.tn-body .task-list-item input,
.tn-checklist input {
  margin-top: 0.3rem;
  accent-color: var(--color-accent);
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
  cursor: pointer;
}
.tn-checklist li.is-done span {
  color: var(--color-ink-muted);
  text-decoration: line-through;
}

/* Related */
.tn-related {
  width: var(--tn-rail);
  margin: 0 auto var(--space-8);
  max-width: min(100%, var(--tn-guide-measure));
}
.tn-related h2 {
  margin: 0 0 var(--space-4);
  font-family: var(--font-display);
  font-size: 1.35rem;
}
.tn-related ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.tn-related li {
  border-top: 1px solid var(--color-line);
}
.tn-related a {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0;
  text-decoration: none;
  color: var(--color-ink);
  transition: padding-left var(--dur) var(--ease-out);
}
.tn-related a:hover {
  padding-left: 0.35rem;
  color: var(--color-accent);
}
.tn-related .blurb {
  color: var(--color-ink-muted);
  font-size: 0.88rem;
  white-space: nowrap;
}

/* Child trails (tripbook) — not cards: rule-separated rows with role */
.tn-children {
  width: var(--tn-rail);
  margin: var(--space-6) auto 0;
  max-width: min(100%, var(--tn-guide-measure));
}
.tn-children h2 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
}
.tn-child {
  display: grid;
  grid-template-columns: 4.5rem 1fr auto;
  gap: var(--space-3);
  align-items: baseline;
  padding: 1rem 0;
  border-top: 1px solid var(--color-line);
  text-decoration: none;
  color: inherit;
}
.tn-child:hover .tn-child__title {
  color: var(--color-accent);
}
.tn-child__line {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.tn-child__title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0;
  transition: color var(--dur) var(--ease-out);
}
.tn-child__meta {
  color: var(--color-ink-muted);
  font-size: 0.88rem;
  white-space: nowrap;
}

/* Map */
.tn-map {
  width: var(--tn-rail);
  margin-inline: auto;
  padding: var(--space-5) 0 var(--space-9);
}
.tn-map__head h2 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-display);
}
.tn-map__head p {
  margin: 0 0 var(--space-4);
  color: var(--color-ink-muted);
  max-width: 52ch;
}
.tn-map__canvas {
  height: min(72vh, 36rem);
  width: 100%;
  background: var(--color-bg-deep);
  border: 1px solid var(--color-line);
}
.tn-map__hint {
  margin-top: var(--space-3);
  color: var(--color-ink-muted);
  font-size: 0.86rem;
}

/* —— Trails index —— */
.tn-index {
  width: var(--tn-rail);
  margin: 0 auto;
  padding: var(--space-8) 0 var(--space-9);
}
.tn-index__head h1 {
  margin: 0 0 var(--space-3);
  font-size: clamp(2rem, 4vw, 2.75rem);
}
.tn-index__lede {
  max-width: 42ch;
  color: var(--color-ink-muted);
  margin: 0 0 var(--space-6);
}
.tn-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--space-6);
}
.tn-filters button {
  appearance: none;
  border: 1px solid var(--color-line);
  background: transparent;
  color: var(--color-ink-muted);
  padding: 0.35rem 0.75rem;
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
}
.tn-filters button.is-on {
  border-color: var(--color-accent);
  color: var(--color-ink);
}
.tn-feature {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: var(--space-6);
  align-items: end;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-7);
  border-bottom: 1px solid var(--color-line);
  text-decoration: none;
  color: inherit;
}
@media (max-width: 800px) {
  .tn-feature { grid-template-columns: 1fr; }
}
.tn-feature__media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-bg-deep);
}
.tn-feature__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.tn-feature__kicker {
  margin: 0 0 var(--space-2);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.tn-feature h2 {
  margin: 0 0 var(--space-3);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
}
.tn-feature p {
  margin: 0;
  color: var(--color-ink-muted);
  max-width: 40ch;
}
.tn-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.tn-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-4);
  align-items: baseline;
  padding: 1.1rem 0;
  border-top: 1px solid var(--color-line);
  text-decoration: none;
  color: inherit;
  animation: tn-rise 0.55s var(--ease-out) both;
}
.tn-row[hidden] { display: none; }
.tn-row__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
}
.tn-row__meta {
  margin: 0.25rem 0 0;
  color: var(--color-ink-muted);
  font-size: 0.88rem;
}
.tn-row__stats {
  color: var(--color-ink-muted);
  font-size: 0.88rem;
  white-space: nowrap;
}
.tn-row.is-draft .tn-row__title::after {
  content: " draft";
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-left: 0.4rem;
  vertical-align: middle;
}

/* Sample: hide from default list via filter; still in DOM */
.tn-index[data-show-samples="0"] .tn-row.is-sample {
  display: none;
}

/* —— Trails hub: 策划 / 路书 —— */
.tn-hub {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin: 0 0 var(--space-8);
}
@media (max-width: 720px) {
  .tn-hub { grid-template-columns: 1fr; }
}
.tn-hub__card {
  display: block;
  padding: var(--space-5) 0;
  border-top: 2px solid var(--color-accent);
  border-bottom: 1px solid var(--color-line);
  text-decoration: none;
  color: inherit;
  transition: padding-left var(--dur) var(--ease-out);
}
.tn-hub__card:hover { padding-left: 0.35rem; }
.tn-hub__kicker {
  margin: 0 0 var(--space-2);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.tn-hub__card h2 {
  margin: 0 0 var(--space-2);
  font-size: clamp(1.45rem, 2.5vw, 1.85rem);
}
.tn-hub__card p:last-child {
  margin: 0;
  color: var(--color-ink-muted);
  font-size: 0.95rem;
}
.tn-hub-section {
  margin-bottom: var(--space-9);
  scroll-margin-top: 5rem;
}
.tn-plan-grid { display: grid; gap: var(--space-6); }
.tn-plan-card {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: var(--space-5);
  align-items: end;
  text-decoration: none;
  color: inherit;
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-line);
}
@media (max-width: 800px) {
  .tn-plan-card { grid-template-columns: 1fr; }
}
.tn-plan-card__media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-bg-deep);
}
.tn-plan-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.tn-plan-card__kicker {
  margin: 0 0 var(--space-2);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.tn-plan-card h3 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
}
.tn-plan-card__copy > p {
  margin: 0;
  color: var(--color-ink-muted);
  max-width: 42ch;
}
.tn-plan-card__meta {
  margin-top: var(--space-3) !important;
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}

/* —— Plan page —— */
.tn-plan {
  width: var(--tn-rail);
  margin: 0 auto var(--space-9);
  max-width: min(100%, 46rem);
  padding-top: var(--space-5);
}
.tn-plan__section {
  padding: var(--space-7) 0;
  border-top: 1px solid var(--color-line);
  scroll-margin-top: 5rem;
}
.tn-plan__kicker {
  margin: 0 0 var(--space-2);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.tn-plan__section h2 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.2vw, 1.7rem);
}
.tn-plan__lede {
  margin: 0 0 var(--space-4);
  color: var(--color-ink-muted);
  max-width: 48ch;
}
.tn-plan__rules,
.tn-plan__bullets {
  margin: 0;
  padding-left: 1.15rem;
  max-width: 48ch;
}
.tn-plan__rules li + li,
.tn-plan__bullets li + li { margin-top: 0.45rem; }
.tn-plan__stack { display: grid; gap: 0; }
.tn-plan__row {
  padding: 0.85rem 0;
  border-top: 1px solid var(--color-line);
}
.tn-plan__row strong { display: block; margin-bottom: 0.25rem; }
.tn-plan__row p { margin: 0; color: var(--color-ink-muted); max-width: 48ch; }

.tn-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--color-line);
}
.tn-timeline__item {
  display: grid;
  grid-template-columns: 6.5rem 1fr;
  gap: var(--space-4);
  padding: 0 0 var(--space-5) var(--space-5);
  position: relative;
}
.tn-timeline__item::before {
  content: "";
  position: absolute;
  left: -3px;
  top: 0.45rem;
  width: 5px;
  height: 5px;
  background: var(--color-accent);
}
.tn-timeline__date {
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--color-accent);
  padding-top: 0.15rem;
}
.tn-timeline__body h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
}
.tn-timeline__body h3 a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
}
.tn-timeline__body h3 a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}
.tn-timeline__meta {
  margin: 0 0 0.35rem;
  font-size: 0.88rem;
  color: var(--color-ink-muted);
}
.tn-timeline__body > p:last-child {
  margin: 0;
  max-width: 44ch;
}

.tn-checklist label {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  cursor: pointer;
}
.tn-checklist input {
  margin-top: 0.3rem;
  accent-color: var(--color-accent);
}

/* Guidebook elevation strip */
.tn-elev {
  width: var(--tn-rail);
  margin: var(--space-5) auto 0;
  max-width: min(100%, 46rem);
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}
.tn-elev__kicker {
  margin: 0 0 var(--space-2);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.tn-elev h2 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-display);
  font-size: 1.35rem;
}
.tn-elev p {
  margin: 0;
  color: var(--color-ink-muted);
  max-width: 48ch;
}
.tn-elev__fig {
  margin: var(--space-4) 0 0;
}
.tn-elev__fig img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* —— Trails index · editorial stage (not wireframe) —— */
.trails-hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--color-snow);
  background: var(--color-hero-veil);
}
.trails-hero__media {
  position: absolute;
  inset: 0;
}
.trails-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.06);
  animation: tn-ken 22s var(--ease-out) both;
}
.trails-hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--color-hero-veil) 72%, transparent) 0%, transparent 55%),
    linear-gradient(180deg, color-mix(in srgb, var(--color-hero-veil) 28%, transparent) 0%, transparent 38%, color-mix(in srgb, var(--color-hero-veil) 88%, transparent) 100%);
  pointer-events: none;
}
.trails-hero__copy {
  position: relative;
  z-index: 2;
  padding: 7rem 0 5.5rem;
  max-width: 34rem;
  animation: tn-rise 0.8s var(--ease-out) both;
}
.trails-hero__brand {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--color-snow);
}
.trails-hero__copy h1 {
  margin: 0 0 var(--space-4);
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  font-weight: 500;
  line-height: 1.35;
  color: color-mix(in srgb, var(--color-snow) 92%, transparent);
  max-width: 16em;
}
.trails-hero__lede {
  margin: 0 0 var(--space-6);
  color: color-mix(in srgb, var(--color-snow) 78%, transparent);
  font-size: 1.05rem;
  max-width: 30rem;
}
.trails-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.trails-hero__split {
  position: absolute;
  z-index: 2;
  right: max(1rem, calc((100% - var(--shell)) / 2));
  bottom: 1.5rem;
  display: flex;
  gap: 1.25rem;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-snow) 55%, transparent);
}
@media (max-width: 720px) {
  .trails-hero__split { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .trails-hero__media img { animation: none; transform: none; }
  .trails-hero__copy { animation: none; }
}

.trails-act {
  padding: var(--space-9) 0 var(--space-7);
  background:
    radial-gradient(120% 80% at 10% 0%, color-mix(in srgb, var(--color-bg-deep) 70%, transparent), transparent 55%),
    var(--color-bg);
}
.trails-act__head {
  margin-bottom: var(--space-6);
  max-width: 36rem;
}
.trails-act__kicker {
  margin: 0 0 var(--space-2);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.trails-act__head h2 {
  margin: 0 0 var(--space-3);
  font-size: clamp(1.85rem, 3.5vw, 2.55rem);
}
.trails-act__head p {
  margin: 0;
  color: var(--color-ink-muted);
  font-size: 1.02rem;
}

.trails-feature {
  position: relative;
  display: block;
  min-height: min(78vh, 40rem);
  overflow: hidden;
  color: var(--color-snow);
  text-decoration: none;
}
.trails-feature__media {
  position: absolute;
  inset: 0;
}
.trails-feature__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s var(--ease-out);
}
.trails-feature:hover .trails-feature__media img {
  transform: scale(1.04);
}
.trails-feature__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--color-hero-veil) 78%, transparent) 0%, transparent 58%),
    linear-gradient(180deg, transparent 30%, color-mix(in srgb, var(--color-hero-veil) 82%, transparent) 100%);
}
.trails-feature__copy {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: inherit;
  padding: 4rem 0 3rem;
  max-width: 36rem;
}
.trails-feature__kicker {
  margin: 0 0 var(--space-2);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: color-mix(in srgb, var(--color-snow) 72%, transparent);
}
.trails-feature__copy h3 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.6rem);
  font-weight: 600;
  color: var(--color-snow);
  line-height: 1.15;
}
.trails-feature__copy > p {
  margin: 0;
  color: color-mix(in srgb, var(--color-snow) 82%, transparent);
  max-width: 38ch;
}
.trails-feature__meta {
  margin-top: var(--space-3) !important;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  opacity: 0.75;
}
.trails-feature__go {
  margin-top: var(--space-5);
  font-size: 0.95rem;
  border-bottom: 1px solid color-mix(in srgb, var(--color-snow) 45%, transparent);
  align-self: flex-start;
  padding-bottom: 0.15rem;
}

.trails-plan-rail {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  padding: var(--space-5) 0 var(--space-3);
  scroll-snap-type: x mandatory;
}
.trails-plan-rail a {
  flex: 0 0 220px;
  scroll-snap-align: start;
  text-decoration: none;
  color: inherit;
}
.trails-plan-rail img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--color-bg-deep);
}
.trails-plan-rail span {
  display: block;
  margin-top: var(--space-2);
  font-size: 0.9rem;
  color: var(--color-ink-muted);
}

.trails-books {
  padding: var(--space-8) 0 var(--space-9);
  background: color-mix(in srgb, var(--color-bg-deep) 35%, var(--color-bg));
}
.trails-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: var(--space-5);
}
.trails-filters button {
  appearance: none;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--color-ink-muted);
  padding: 0.4rem 0.55rem;
  font: inherit;
  font-size: 0.88rem;
  cursor: pointer;
}
.trails-filters button.is-on {
  color: var(--color-ink);
  border-bottom-color: var(--color-accent);
}

.trails-book-rail {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding: 0.5rem max(1rem, calc((100% - var(--shell)) / 2)) var(--space-6);
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.trails-book {
  flex: 0 0 min(72vw, 18.5rem);
  scroll-snap-align: start;
  text-decoration: none;
  color: inherit;
  animation: tn-rise 0.65s var(--ease-out) both;
}
.trails-book[hidden] { display: none; }
.trails-book__media {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--color-bg-deep);
}
.trails-book__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease-out);
}
.trails-book:hover .trails-book__media img {
  transform: scale(1.05);
}
.trails-book__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 48%, color-mix(in srgb, var(--color-hero-veil) 78%, transparent) 100%);
  pointer-events: none;
}
.trails-book__copy {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.1rem 1rem 1.15rem;
  color: var(--color-snow);
}
.trails-book__media { isolation: isolate; }
.trails-book__copy {
  z-index: 1;
}
.trails-book {
  position: relative;
}
.trails-book__role {
  margin: 0 0 0.35rem;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.8;
}
.trails-book__copy h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-snow);
  line-height: 1.25;
}
.trails-book__stats {
  margin: 0;
  font-size: 0.86rem;
  opacity: 0.78;
}
.trails-book.is-draft .trails-book__role::after {
  content: " · draft";
}
body[data-show-samples="0"] .trails-book.is-sample {
  display: none;
}


/* Home unscoped */
.shell{width:min(100% - 2rem,var(--shell));margin-inline:auto}.hero-carousel{position:relative;min-height:100vh;min-height:100dvh;overflow:hidden;background:var(--color-hero-veil);color:var(--color-snow)}.slides{position:absolute;inset:0}.slide{position:absolute;inset:0;opacity:0;transition:opacity 1.6s var(--ease-out);pointer-events:none}.slide.is-active{opacity:1;pointer-events:auto;z-index:1}.slide img{width:100%;height:100%;object-fit:cover;object-position:center;transform:scale(1.04);transition:transform 12s linear}.slide.is-active img{transform:scale(1.1)}.slide:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,color-mix(in srgb,var(--color-hero-veil) 35%,transparent),color-mix(in srgb,var(--color-hero-veil) 12%,transparent) 42%,color-mix(in srgb,var(--color-hero-veil) 78%,transparent))}.hero-copy{position:relative;z-index:2;display:flex;flex-direction:column;justify-content:flex-end;min-height:100vh;min-height:100dvh;padding:6.5rem 0 4.75rem;max-width:34rem;animation:rise var(--dur) var(--ease-out) both;animation-delay:.12s}.source-hook{margin:0 0 var(--space-3);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;opacity:.72}.brand-mark{margin:0 0 var(--space-3);font-family:var(--font-display);font-size:clamp(2.6rem,6vw,4.25rem);font-weight:600;line-height:1.05;letter-spacing:-.03em;color:var(--color-snow)}.hero-copy h1{margin:0 0 var(--space-3);color:var(--color-snow);font-size:clamp(1.2rem,2.4vw,1.65rem);font-weight:500;font-style:normal;max-width:18em;line-height:1.35}.lede{margin:0 0 var(--space-6);color:color-mix(in srgb,var(--color-snow) 82%,transparent);font-size:1.05rem;max-width:28rem}.cta-row{display:flex;flex-wrap:wrap;gap:var(--space-5);align-items:center}.cta{color:var(--color-snow);text-decoration:none;font-weight:500;font-size:.95rem;border-bottom:1px solid transparent;padding-bottom:.12rem}.cta.primary{border-bottom-color:var(--color-accent)}.cta.primary:hover{border-bottom-color:var(--color-snow);color:var(--color-snow)}.cta.ghost{opacity:.75}.cta.ghost:hover{opacity:1;color:var(--color-snow)}.dots{position:absolute;z-index:3;left:50%;bottom:1.35rem;transform:translate(-50%);display:flex;gap:.45rem}.dots button{width:7px;height:7px;padding:0;border:0;border-radius:50%;background:color-mix(in srgb,var(--color-snow) 35%,transparent);cursor:pointer}.dots button.is-active{width:18px;border-radius:4px;background:var(--color-snow)}.blockers{padding:var(--space-6) 0 0}.blockers-inner{border-top:2px solid var(--color-accent);border-bottom:1px solid var(--color-line);padding:var(--space-5) 0 var(--space-6)}.blockers-kicker{margin:0 0 var(--space-2);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--color-ink-muted)}.blockers-inner h2{margin:0 0 var(--space-3);font-family:var(--font-display);font-size:clamp(1.35rem,2.5vw,1.75rem);color:var(--color-ink)}.blockers-lede{margin:0 0 var(--space-5);max-width:42ch;color:var(--color-ink-muted);font-size:.98rem}.blocker-list{list-style:none;margin:0;padding:0;display:grid;gap:0}.blocker-list li{display:grid;grid-template-columns:2.5rem 1fr;gap:var(--space-3);padding:var(--space-4) 0;border-top:1px solid var(--color-line)}.blocker-list .num{font-family:var(--font-display);font-size:.95rem;color:var(--color-accent);padding-top:.15rem}.blocker-list strong{display:block;margin-bottom:.25rem;font-size:1.05rem}.blocker-list p{margin:0;color:var(--color-ink-muted);font-size:.95rem}.blockers-actions{display:flex;flex-wrap:wrap;gap:.75rem 1.5rem;margin:var(--space-5) 0 0;padding-top:var(--space-4);border-top:1px solid var(--color-line)}.blockers-actions a{color:var(--color-accent);text-decoration:none;border-bottom:1px solid transparent}.blockers-actions a:hover{border-bottom-color:var(--color-accent)}.below{padding:var(--space-8) 0 var(--space-9)}.below-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:var(--space-3);margin-bottom:var(--space-5)}.below-head h2{margin:0;font-size:1.55rem}.below-head p{margin:0;color:var(--color-ink-muted);font-size:.95rem}.mag-hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:var(--space-6);align-items:end;margin-bottom:var(--space-6)}.mag-cover img{width:100%;aspect-ratio:3 / 4;object-fit:cover}.mag-kicker{margin:0 0 var(--space-2);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--color-ink-muted)}.mag-title{margin:0 0 var(--space-3);font-family:var(--font-display);font-size:1.45rem;color:var(--color-brand-ink)}.mag-lede{margin:0 0 var(--space-4);color:var(--color-ink-muted)}.mag-link{font-weight:500}.rail-label{margin:0 0 var(--space-3);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--color-ink-muted)}.rail{display:flex;gap:var(--space-4);overflow-x:auto;padding-bottom:var(--space-3);scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}.rail a{flex:0 0 140px;scroll-snap-align:start;text-decoration:none;color:inherit}.rail img{width:140px;height:190px;object-fit:cover}.rail span{display:block;margin-top:var(--space-2);font-size:.85rem;color:var(--color-ink-muted)}.album-row{margin-top:var(--space-8);padding-top:var(--space-7);border-top:1px solid var(--color-line)}.album-block{display:block;overflow:hidden}.album-block img{width:100%;height:auto;object-fit:cover}@keyframes rise{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@media(max-width:800px){.mag-hero{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){.slide{transition:none}.slide img{transform:none!important;transition:none}.hero-copy{animation:none}}

/* —— Shared marketing pages (about / notes / magazine) —— */
.tn-page {
  width: var(--tn-rail);
  margin: 0 auto;
  padding: var(--space-8) 0 var(--space-9);
}
.tn-page__kicker {
  margin: 0 0 var(--space-3);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.tn-page__head h1 {
  margin: 0 0 var(--space-3);
  font-size: clamp(2rem, 4vw, 2.75rem);
}
.tn-page__lede {
  margin: 0 0 var(--space-7);
  max-width: 42ch;
  color: var(--color-ink-muted);
}
.tn-prose {
  max-width: 42rem;
}
.tn-prose p {
  margin: 0 0 var(--space-4);
  max-width: 48ch;
}

/* Magazine cover flow aligned with home rail */
.tn-cover-flow {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: var(--space-3);
  -webkit-overflow-scrolling: touch;
  margin-bottom: var(--space-8);
}
.tn-cover-flow a {
  flex: 0 0 160px;
  scroll-snap-align: start;
  text-decoration: none;
  color: inherit;
}
.tn-cover-flow img {
  width: 160px;
  height: 220px;
  object-fit: cover;
  background: var(--color-bg-deep);
}
.tn-cover-flow span {
  display: block;
  margin-top: var(--space-2);
  font-size: 0.85rem;
  color: var(--color-ink-muted);
}

.tn-issue {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: var(--space-6);
  align-items: end;
  padding: var(--space-7) 0;
  border-top: 1px solid var(--color-line);
  text-decoration: none;
  color: inherit;
}
@media (max-width: 800px) {
  .tn-issue { grid-template-columns: 1fr; }
}
.tn-issue img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: var(--color-bg-deep);
}
.tn-issue__kicker {
  margin: 0 0 var(--space-2);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}
.tn-issue__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3vw, 1.9rem);
}
.tn-issue__lede {
  margin: 0;
  color: var(--color-ink-muted);
  max-width: 40ch;
}

/* Gallery: kill pill clusters — square controls like tn-filters */
.pres-switch {
  border-radius: 0 !important;
  overflow: visible;
}
.pres-switch button {
  border: 1px solid var(--color-line) !important;
  border-right-width: 0 !important;
  background: transparent !important;
}
.pres-switch button:last-child {
  border-right-width: 1px !important;
}
.pres-switch button.on {
  border-color: var(--color-accent) !important;
  color: var(--color-ink) !important;
  background: transparent !important;
}
.layout-switch button {
  border-radius: 0;
}

/* Nav current page already uses .on — ensure accent */
.nav a.on { color: var(--color-accent); }
.is-hero-chrome .nav a.on { color: var(--color-snow); opacity: 1; }