/* Atlas Grid — carte SVG + panneau expédition | prefix: at- */
:root {
  --at-night: #0b1424;
  --at-deep: #07101c;
  --at-cyan: #5edcff;
  --at-amber: #f5b942;
  --at-ink: #e8f1ff;
  --at-mute: rgba(232, 241, 255, 0.58);
  --at-line: rgba(94, 220, 255, 0.28);
  --at-zone: rgba(94, 220, 255, 0.1);
  --at-zone-hot: rgba(245, 185, 66, 0.28);
  --at-font-display: "Space Grotesk", system-ui, sans-serif;
  --at-font-body: "Newsreader", Georgia, serif;
  --at-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --at-max: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

.at-body {
  margin: 0;
  min-height: 100vh;
  color: var(--at-ink);
  font-family: var(--at-font-body);
  background:
    radial-gradient(ellipse 80% 55% at 70% 10%, rgba(94, 220, 255, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 10% 80%, rgba(245, 185, 66, 0.08), transparent 50%),
    linear-gradient(165deg, var(--at-deep) 0%, var(--at-night) 45%, #0e1a30 100%);
  background-attachment: fixed;
}

.at-preview {
  padding: 0.55rem 1rem;
  background: var(--at-amber);
  color: var(--at-night);
  text-align: center;
  font-family: var(--at-font-display);
  font-size: 0.85rem;
  font-weight: 600;
}
.at-preview a { text-decoration: underline; }

.at-main { display: block; min-height: 60vh; }

.at-eyebrow {
  margin: 0 0 0.55rem;
  font-family: var(--at-font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--at-cyan);
}

/* —— Header —— */
.at-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  padding: 0.75rem clamp(1rem, 4vw, 2.25rem);
  background: color-mix(in srgb, var(--at-night) 86%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--at-line);
}
.at-brand {
  font-family: var(--at-font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.55rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.at-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  font-family: var(--at-font-display);
  font-size: 0.88rem;
  font-weight: 500;
}
.at-nav a { color: var(--at-mute); }
.at-nav a:hover,
.at-nav a.is-active { color: var(--at-cyan); }
.at-header-tools {
  margin-left: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.85rem;
}
.at-search input {
  width: min(210px, 44vw);
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--at-line);
  background: rgba(7, 16, 28, 0.7);
  color: var(--at-ink);
  font-family: var(--at-font-display);
  font-size: 0.82rem;
  border-radius: 2px;
}
.at-search input:focus {
  outline: 2px solid var(--at-cyan);
  outline-offset: 1px;
}
.at-admin {
  font-family: var(--at-font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--at-line);
  padding: 0.32rem 0.5rem;
  color: var(--at-cyan);
}

/* Member nav — cyan/amber hard offset */
.at-header .member-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.at-header .member-nav-sep {
  width: 8px;
  height: 2px;
  border-radius: 0;
  background: var(--at-cyan);
  opacity: 0.85;
}
.at-header .member-nav-link {
  font-family: var(--at-font-display);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--at-ink);
  background: var(--at-deep);
  border: 1px solid var(--at-cyan);
  border-radius: 2px;
  padding: 0.35rem 0.65rem;
  opacity: 1;
  box-shadow: 3px 3px 0 rgba(94, 220, 255, 0.45);
  transition: transform 0.15s var(--at-ease), box-shadow 0.15s var(--at-ease), background 0.15s, color 0.15s;
}
.at-header .member-nav-link--up {
  background: var(--at-amber);
  color: var(--at-night);
  border-color: var(--at-amber);
  box-shadow: 3px 3px 0 rgba(245, 185, 66, 0.55);
}
.at-header .member-nav-link:hover,
.at-header .member-nav-link:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 rgba(94, 220, 255, 0.55);
  opacity: 1;
}
.at-header .member-nav-link--up:hover,
.at-header .member-nav-link--up:focus-visible {
  box-shadow: 5px 5px 0 rgba(245, 185, 66, 0.7);
}

/* —— Stage: full map composition —— */
.at-stage {
  position: relative;
  min-height: calc(100vh - 64px);
  display: flex;
  flex-direction: column;
  padding: 0.75rem clamp(0.75rem, 3vw, 1.75rem) 1.25rem;
}
.at-stage__map {
  position: relative;
  flex: 1;
  min-height: min(72vh, 640px);
  border: 1px solid var(--at-line);
  background:
    radial-gradient(circle at 60% 40%, rgba(94, 220, 255, 0.06), transparent 45%),
    rgba(4, 10, 18, 0.55);
  overflow: hidden;
}
.at-svg {
  display: block;
  width: 100%;
  height: 100%;
  min-height: min(72vh, 640px);
}

.at-zone {
  fill: var(--at-zone);
  stroke: rgba(94, 220, 255, 0.45);
  stroke-width: 1.4;
  cursor: pointer;
  transition: fill 0.25s var(--at-ease), stroke 0.25s, filter 0.25s;
}
.at-zone:hover,
.at-zone.is-hot,
.at-zone:focus-visible {
  fill: var(--at-zone-hot);
  stroke: var(--at-amber);
  filter: url(#at-glow);
  outline: none;
}
.at-zone.is-active {
  fill: rgba(245, 185, 66, 0.38);
  stroke: var(--at-amber);
  stroke-width: 2;
  animation: at-pulse-zone 1.8s ease-in-out infinite;
}
.at-zone-label {
  fill: rgba(232, 241, 255, 0.55);
  font-family: var(--at-font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-anchor: middle;
  pointer-events: none;
  user-select: none;
}
.at-zone.is-hot + .at-zone-label,
.at-zone.is-active + .at-zone-label { fill: var(--at-amber); }

.at-pulse {
  fill: var(--at-cyan);
  opacity: 0.7;
  transform-origin: 295px 210px;
  animation: at-soft-pulse 2.4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes at-soft-pulse {
  0%, 100% { opacity: 0.35; transform: scale(0.85); }
  50% { opacity: 0.95; transform: scale(1.25); }
}
@keyframes at-pulse-zone {
  0%, 100% { fill: rgba(245, 185, 66, 0.28); }
  50% { fill: rgba(245, 185, 66, 0.45); }
}

.at-overlay {
  position: absolute;
  left: clamp(1rem, 3vw, 2rem);
  top: clamp(1rem, 3vw, 2rem);
  z-index: 3;
  max-width: min(360px, 88%);
  pointer-events: none;
}
.at-overlay__brand {
  margin: 0 0 0.65rem;
  font-family: var(--at-font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.95;
  text-shadow: 0 0 40px rgba(11, 20, 36, 0.9);
}
.at-overlay__line {
  margin: 0 0 1rem;
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--at-mute);
  max-width: 32ch;
  text-shadow: 0 2px 16px rgba(11, 20, 36, 0.85);
}
.at-overlay__cta {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.05rem;
  font-family: var(--at-font-display);
  font-weight: 600;
  font-size: 0.88rem;
  background: var(--at-cyan);
  color: var(--at-night);
  border: 1px solid var(--at-cyan);
  box-shadow: 4px 4px 0 rgba(94, 220, 255, 0.35);
  transition: transform 0.15s var(--at-ease), box-shadow 0.15s;
}
.at-overlay__cta:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(94, 220, 255, 0.45);
}

/* Side panel */
.at-panel {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 4;
  width: min(340px, 92%);
  height: 100%;
  padding: 1.1rem 1.15rem 1.35rem;
  background: rgba(7, 16, 28, 0.94);
  border-left: 1px solid var(--at-line);
  backdrop-filter: blur(14px);
  transform: translateX(105%);
  transition: transform 0.4s var(--at-ease);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.at-panel.is-open {
  transform: translateX(0);
}
.at-panel[hidden] { display: none; }
.at-panel.is-open[hidden] { display: flex; }
.at-panel__bar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
}
.at-panel__zone {
  margin: 0;
  font-family: var(--at-font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.at-panel__close {
  border: 1px solid var(--at-line);
  background: transparent;
  color: var(--at-ink);
  width: 2rem;
  height: 2rem;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
}
.at-panel__close:hover { border-color: var(--at-cyan); color: var(--at-cyan); }
.at-panel__count {
  margin: 0;
  font-family: var(--at-font-display);
  font-size: 0.78rem;
  color: var(--at-amber);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.at-panel__list {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.at-panel__list a {
  display: block;
  padding: 0.65rem 0.7rem;
  border: 1px solid rgba(94, 220, 255, 0.18);
  background: rgba(94, 220, 255, 0.04);
  transition: border-color 0.15s, background 0.15s;
}
.at-panel__list a:hover {
  border-color: var(--at-amber);
  background: rgba(245, 185, 66, 0.08);
}
.at-panel__list strong {
  display: block;
  font-family: var(--at-font-display);
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}
.at-panel__list span {
  font-size: 0.82rem;
  color: var(--at-mute);
  line-height: 1.35;
}
.at-panel__more {
  font-family: var(--at-font-display);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--at-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Legend */
.at-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.85rem;
}
.at-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.6rem;
  border: 1px solid var(--at-line);
  background: rgba(7, 16, 28, 0.55);
  color: var(--at-ink);
  font-family: var(--at-font-display);
  font-size: 0.75rem;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.at-legend__item:hover,
.at-legend__item.is-active {
  border-color: var(--at-amber);
  color: var(--at-amber);
  background: rgba(245, 185, 66, 0.08);
}
.at-legend__dot {
  width: 8px;
  height: 8px;
  border-radius: 1px;
  background: var(--at-cyan);
}
.at-legend__item.is-active .at-legend__dot { background: var(--at-amber); }
.at-legend__n {
  margin-left: 0.15rem;
  opacity: 0.65;
  font-variant-numeric: tabular-nums;
}

/* Fallback */
.at-fallback {
  padding: 1.25rem clamp(1rem, 4vw, 2rem);
}
.at-fallback__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.65rem;
}
.at-fallback__grid a {
  padding: 0.75rem;
  border: 1px solid var(--at-line);
  font-family: var(--at-font-display);
  font-size: 0.88rem;
}
.at-fallback__grid span { color: var(--at-mute); font-size: 0.78rem; }

/* Dispatches / archive / category */
.at-dispatches,
.at-archive,
.at-cat {
  max-width: var(--at-max);
  margin: 0 auto;
  padding: 2rem clamp(1rem, 4vw, 2.25rem) 3rem;
}
.at-dispatches__title,
.at-archive__title,
.at-cat__title {
  margin: 0 0 1.25rem;
  font-family: var(--at-font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.at-cat__dek { margin: 0.5rem 0 1.25rem; color: var(--at-mute); max-width: 48ch; }
.at-empty { color: var(--at-mute); }

.at-dispatch {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--at-line);
}
.at-dispatch li { border-bottom: 1px solid var(--at-line); }
.at-dispatch a {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 0.85rem;
  align-items: baseline;
  padding: 1rem 0.15rem;
  transition: color 0.15s;
}
.at-dispatch a:hover { color: var(--at-cyan); }
.at-dispatch__n {
  font-family: var(--at-font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--at-amber);
  letter-spacing: 0.04em;
}
.at-dispatch__t {
  display: block;
  font-family: var(--at-font-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.at-dispatch__m {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.82rem;
  color: var(--at-mute);
}

/* —— Article: surveyor’s field case (topo + notebook) —— */
.at-fieldcase {
  display: grid;
  grid-template-columns: minmax(180px, 240px) minmax(0, 1fr);
  gap: 1.75rem 2rem;
  max-width: 1100px;
  margin: 1.25rem auto 2rem;
  padding: 0 clamp(1rem, 3vw, 1.75rem);
  align-items: start;
}

/* LEFT sticky topo mini-map */
.at-topo {
  position: sticky;
  top: 88px;
  align-self: start;
}
.at-topo__frame {
  padding: 0.75rem;
  border: 1px solid var(--at-line);
  background:
    radial-gradient(ellipse 70% 50% at 50% 40%, rgba(94, 220, 255, 0.08), transparent 65%),
    rgba(7, 16, 28, 0.85);
  box-shadow: 0 0 0 1px rgba(94, 220, 255, 0.06);
}
.at-topo__label {
  margin: 0 0 0.55rem;
  font-family: var(--at-font-display);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--at-cyan);
}
.at-topo__svg {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  color: var(--at-cyan);
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 9px,
      rgba(94, 220, 255, 0.04) 9px,
      rgba(94, 220, 255, 0.04) 10px
    ),
    #0a1526;
  border: 1px solid rgba(94, 220, 255, 0.2);
}
.at-topo__route {
  stroke-dashoffset: 0;
  animation: at-route-dash 12s linear infinite;
}
@keyframes at-route-dash {
  to { stroke-dashoffset: -48; }
}
.at-topo__pin {
  animation: at-pin-glow 2.4s ease-in-out infinite;
}
.at-topo__glow {
  transform-origin: center;
  transform-box: fill-box;
  animation: at-glow-pulse 2.4s ease-in-out infinite;
}
@keyframes at-pin-glow {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(0, -1px) scale(1.05); }
}
@keyframes at-glow-pulse {
  0%, 100% { opacity: 0.25; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(1.45); }
}
.at-topo__coords {
  margin: 0.55rem 0 0;
  font-family: var(--at-font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--at-amber);
  text-align: center;
}

/* RIGHT notebook */
.at-notebook {
  min-width: 0;
  padding: 1.15rem 1.25rem 1.75rem 1.5rem;
  background:
    linear-gradient(90deg, rgba(180, 60, 50, 0.55) 0 2px, transparent 2px),
    repeating-linear-gradient(
      transparent,
      transparent 27px,
      rgba(94, 220, 255, 0.12) 27px,
      rgba(94, 220, 255, 0.12) 28px
    ),
    linear-gradient(165deg, #122033 0%, #0d1828 100%);
  border: 1px solid var(--at-line);
  box-shadow: 8px 10px 0 rgba(0, 0, 0, 0.35);
  background-attachment: local;
}

.at-stampblock {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 1.1rem;
  margin-bottom: 1.1rem;
  animation: at-stamp-in 0.55s var(--at-ease) both;
}
@keyframes at-stamp-in {
  from { opacity: 0; transform: scale(1.08) rotate(-3deg); }
  to { opacity: 1; transform: none; }
}
.at-stampblock__mark {
  margin: 0;
  display: inline-block;
  padding: 0.35rem 0.65rem;
  border: 2px solid var(--at-amber);
  color: var(--at-amber);
  font-family: var(--at-font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transform: rotate(-2.5deg);
  box-shadow: inset 0 0 0 1px rgba(245, 185, 66, 0.35);
  background: rgba(245, 185, 66, 0.06);
}
.at-stampblock__coords {
  margin: 0;
  font-family: var(--at-font-display);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--at-cyan);
}

.at-notebook__heading {
  margin: 0 0 0.65rem;
  font-family: var(--at-font-body);
  font-size: clamp(1.55rem, 3.4vw, 2.35rem);
  font-weight: 500;
  font-style: italic;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--at-ink);
  max-width: 28ch;
}
.at-notebook__margin-note {
  margin: 0 0 0.85rem;
  padding-left: 0.85rem;
  border-left: 2px solid var(--at-amber);
  font-size: 0.98rem;
  line-height: 1.45;
  color: var(--at-mute);
  max-width: 42ch;
}
.at-notebook__meta {
  margin: 0 0 1.35rem;
  font-family: var(--at-font-display);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--at-mute);
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.55rem;
}
.at-notebook__meta a {
  color: var(--at-amber);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.at-badge {
  border: 1px solid var(--at-amber);
  color: var(--at-amber);
  padding: 0.1rem 0.4rem;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Photo taped into notebook */
.at-taped {
  position: relative;
  width: min(100%, 420px);
  margin: 0 0 1.75rem 0.35rem;
  padding: 0.55rem 0.55rem 0.35rem;
  background: #e8dfc8;
  transform: rotate(-1.8deg);
  box-shadow: 3px 5px 0 rgba(0, 0, 0, 0.35);
}
.at-taped img {
  width: 100%;
  max-height: 280px;
  object-fit: cover;
  filter: contrast(1.06) saturate(0.92);
  border: 1px solid rgba(11, 20, 36, 0.25);
}
.at-taped figcaption {
  margin: 0.35rem 0 0.15rem;
  font-family: var(--at-font-display);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #3a3228;
}
.at-taped__tape {
  position: absolute;
  z-index: 2;
  width: 58px;
  height: 18px;
  background: linear-gradient(
    90deg,
    rgba(245, 220, 160, 0.55),
    rgba(245, 220, 160, 0.85),
    rgba(245, 220, 160, 0.55)
  );
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  pointer-events: none;
}
.at-taped__tape--tl {
  top: -6px;
  left: 12px;
  transform: rotate(-18deg);
}
.at-taped__tape--tr {
  top: -4px;
  right: 18px;
  transform: rotate(12deg);
}
.at-taped__tape--bl {
  bottom: 22px;
  left: -8px;
  transform: rotate(72deg);
  width: 48px;
}

/* Lined notebook prose (margin red rule already on .at-notebook) */
.at-lined {
  font-size: 1.05rem;
  line-height: 1.75;
  /* sync to 28px notebook lines */
  line-height: 28px;
}
.at-lined > * {
  margin: 0 0 28px;
}
.at-lined p { margin: 0 0 28px; }
.at-lined h2,
.at-lined h3 {
  font-family: var(--at-font-display);
  font-style: normal;
  margin: 28px 0 14px;
  letter-spacing: -0.02em;
  color: var(--at-cyan);
  border-bottom: 1px dashed rgba(94, 220, 255, 0.35);
  padding-bottom: 0.25rem;
}
.at-lined img {
  width: 100%;
  margin: 14px 0;
  border: 1px solid var(--at-line);
}
.at-lined a {
  color: var(--at-amber);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.at-lined blockquote {
  margin: 14px 0 28px;
  padding-left: 0.85rem;
  border-left: 2px solid var(--at-amber);
  font-style: italic;
  color: var(--at-mute);
}
.at-source {
  margin-top: 1.5rem;
  font-family: var(--at-font-display);
  font-size: 0.88rem;
}
.at-source a { color: var(--at-cyan); text-decoration: underline; }

/* Related = triangulation stations with bearings */
.at-triangulation,
.at-stations {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem clamp(1rem, 4vw, 2.25rem) 3.5rem;
  opacity: 1;
}
.at-triangulation__head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--at-line);
}
.at-triangulation__title {
  margin: 0;
  text-align: right;
  font-family: var(--at-font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 0.88;
  letter-spacing: -0.04em;
}
.at-triangulation__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.at-triangulation__item a {
  display: grid;
  grid-template-columns: 4.5rem 72px minmax(0, 1fr);
  gap: 0.9rem;
  align-items: center;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--at-line);
  background: rgba(7, 16, 28, 0.55);
  transition: border-color 0.18s, transform 0.18s, box-shadow 0.18s;
  opacity: 1;
}
.at-triangulation__item a:hover {
  border-color: var(--at-amber);
  transform: translateX(5px);
  box-shadow: -4px 0 0 var(--at-amber);
}
.at-triangulation__bearing {
  display: grid;
  place-items: center;
  gap: 0.25rem;
  font-family: var(--at-font-display);
  color: var(--at-cyan);
}
.at-triangulation__needle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(94, 220, 255, 0.45);
  background:
    conic-gradient(from var(--brg, 0deg), var(--at-amber) 0 8deg, transparent 8deg 360deg),
    radial-gradient(circle at 50% 50%, rgba(94, 220, 255, 0.15), transparent 70%);
  position: relative;
}
.at-triangulation__needle::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 50%;
  width: 2px;
  height: 12px;
  margin-left: -1px;
  background: var(--at-amber);
  transform-origin: bottom center;
  transform: rotate(var(--brg, 0deg));
  border-radius: 1px;
}
.at-triangulation__bearing b {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.at-triangulation__item img,
.at-triangulation__blank {
  width: 72px;
  height: 54px;
  object-fit: cover;
  border: 1px solid var(--at-line);
  background: linear-gradient(135deg, rgba(94, 220, 255, 0.15), rgba(245, 185, 66, 0.12));
}
.at-triangulation__t {
  display: block;
  font-family: var(--at-font-display);
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
}
.at-triangulation__d {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.78rem;
  color: var(--at-mute);
  font-family: var(--at-font-display);
  letter-spacing: 0.03em;
}

/* Footer / 404 */
.at-footer {
  padding: 2rem clamp(1rem, 4vw, 2.25rem) 2.5rem;
  border-top: 1px solid var(--at-line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: baseline;
}
.at-footer__brand {
  margin: 0;
  font-family: var(--at-font-display);
  font-size: 1.15rem;
  font-weight: 700;
}
.at-footer__tag,
.at-footer__copy {
  margin: 0;
  font-size: 0.85rem;
  color: var(--at-mute);
}

.at-404 {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 2rem clamp(1rem, 4vw, 2.5rem);
  gap: 0.35rem;
}
.at-404__code {
  margin: 0;
  font-family: var(--at-font-display);
  font-size: 5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--at-amber);
}
.at-404__title {
  margin: 0;
  font-family: var(--at-font-display);
  font-size: 2rem;
}
.at-404__dek {
  margin: 0 0 1rem;
  color: var(--at-mute);
}

[data-at-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.55s var(--at-ease), transform 0.55s var(--at-ease);
}
[data-at-reveal].is-in,
.at-body.at-reduced [data-at-reveal] {
  opacity: 1;
  transform: none;
}

@media (max-width: 860px) {
  .at-fieldcase {
    grid-template-columns: 1fr;
  }
  .at-topo {
    position: static;
  }
  .at-topo__frame {
    display: grid;
    grid-template-columns: minmax(120px, 160px) 1fr;
    gap: 0.75rem;
    align-items: center;
  }
  .at-topo__coords { text-align: left; }
}
@media (max-width: 760px) {
  .at-nav { display: none; }
  .at-overlay { max-width: 94%; }
  .at-panel {
    width: 100%;
    height: auto;
    max-height: 55%;
    top: auto;
    bottom: 0;
    border-left: 0;
    border-top: 1px solid var(--at-line);
    transform: translateY(105%);
  }
  .at-panel.is-open { transform: translateY(0); }
  .at-topo__frame { grid-template-columns: 1fr; }
  .at-triangulation__head { display: block; }
  .at-triangulation__title { margin-top: 0.45rem; text-align: left; }
  .at-triangulation__item a { grid-template-columns: 3.5rem minmax(0, 1fr); }
  .at-triangulation__item img,
  .at-triangulation__blank { display: none; }
  .at-stations__item a { grid-template-columns: 2rem minmax(0, 1fr); }
  .at-stations__item img { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .at-pulse,
  .at-zone.is-active,
  .at-topo__route,
  .at-topo__pin,
  .at-topo__glow,
  .at-stampblock,
  [data-at-reveal] {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .at-panel { transition: none; }
}