/* ============================================================
   KGS Seismic Viewer — seismic.css
   ADA/WCAG 2.1 A + AA compliant
   ============================================================ */

/* ── Google Fonts ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Source+Serif+4:ital,opsz,wght@0,8..60,400;0,8..60,600;0,8..60,700;1,8..60,400&family=DM+Mono:wght@400;500&display=swap');

/* ── Design tokens ────────────────────────────────────────── */
:root {
  --kgs-blue:        #003f87;   /* KGS/UK institutional blue  */
  --kgs-blue-dark:   #002a5c;
  --kgs-blue-light:  #e8eef7;
  --kgs-red:         #cc0000;   /* original site accent        */
  --kgs-green:       #1a5c1a;   /* station code colour         */
  --surface:         #ffffff;
  --surface-alt:     #f5f7fa;
  --border:          #c8d0dc;
  --text-primary:    #1a1a2e;
  --text-secondary:  #3d4a5c;
  --text-muted:      #5a6a7e;
  --success:         #1a5c1a;
  --warning:         #7a4d00;
  --error:           #8b0000;
  --focus-ring:      #0056b3;
  --radius-sm:       4px;
  --radius-md:       8px;
  --radius-lg:       12px;
  --shadow-sm:       0 1px 3px rgba(0,0,0,.12);
  --shadow-md:       0 4px 12px rgba(0,0,0,.10);
  --font-body:       'Source Serif 4', Georgia, serif;
  --font-mono:       'DM Mono', 'Courier New', monospace;
  --max-width:       1320px;
  --transition:      .18s ease;
}

/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--surface-alt);
  line-height: 1.65;
  min-height: 100vh;
}

a {
  color: var(--kgs-blue);
  transition: color var(--transition);
}

a:hover { 
  color: var(--kgs-blue-dark); 
}


/* ── ADA: Skip link ───────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--kgs-blue);
  color: #fff;
  padding: .5rem 1rem;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-size: .9rem;
  font-family: var(--font-body);
  text-decoration: none;
  z-index: 9999;
  transition: top var(--transition);
}
.skip-link:focus {
  top: 0;
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ── ADA: Screen-reader-only ──────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ── ADA: Focus visible ───────────────────────────────────── */
:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ── Header ───────────────────────────────────────────────── */
.site-header {
  background: linear-gradient(135deg, var(--kgs-blue-dark) 0%, var(--kgs-blue) 100%);
  color: #fff;
  padding: .75rem 1.5rem;
  box-shadow: var(--shadow-md);
}
.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.site-header__logo-link {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.site-header__logo-img {
  height: 52px;
  width: auto;
  display: block;
}
.site-header__title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.2;
  color: #fff;
}
.site-header__title span {
  display: block;
  font-size: .8rem;
  font-weight: 400;
  opacity: .85;
  letter-spacing: .04em;
}

/* ── Nav breadcrumb ───────────────────────────────────────── */
.site-nav {
  background: var(--kgs-blue-light);
  border-bottom: 2px solid var(--border);
  padding: .55rem 1.5rem;
}
.site-nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  font-size: .9rem;
}
.site-nav a {
  color: var(--kgs-blue);
  text-decoration: none;
  transition: color var(--transition);
  font-weight: 600;
}

.site-nav a:hover { 
  color: var(--kgs-blue-dark); 
  text-decoration: underline;
  font-weight: 600;
}

/* ── Main layout ──────────────────────────────────────────── */
.site-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem;
}

/* ── Station hero ─────────────────────────────────────────── */
.station-hero {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 5px solid var(--kgs-blue);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}
.station-hero__info {
  flex: 1 1 0;
  min-width: 0;
}
.station-hero__map {
  width: 300px; height: 300px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;

  }
.station-hero__map iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: none;
  overflow:hidden;
}
.station-hero__name {
  font-size: 2rem;
  font-weight: 700;
  color: var(--kgs-red);
  line-height: 1.15;
}
.station-hero__code {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--kgs-green);
  background: #e8f5e8;
  padding: .15rem .5rem;
  border-radius: var(--radius-sm);
  margin-left: .4rem;
  font-weight: 500;
}
.station-hero__coords {
  font-size: .85rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: .35rem;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

/* ── Date navigation ──────────────────────────────────────── */
.date-nav {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
  box-shadow: var(--shadow-sm);
}
.date-nav__label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: .06em;
  text-transform: uppercase;
  white-space: nowrap;
}

.date-nav__input {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 500;
  color: var(--kgs-blue);
  background: var(--kgs-blue-light);
  padding: .35rem .85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  cursor: pointer;
}
.date-nav__input:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.date-nav__date {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--kgs-blue);
  background: var(--kgs-blue-light);
  padding: .35rem .85rem;
  border-radius: var(--radius-md);
  min-width: 14rem;
  text-align: center;
  border: 1px solid var(--border);
}
.date-nav__btn {
  background: var(--kgs-blue);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  padding: .45rem 1rem;
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}
.date-nav__btn:hover { background: var(--kgs-blue-dark); }
.date-nav__btn:active { transform: scale(.97); }
.date-nav__btn:disabled {
  background: var(--border);
  color: var(--text-muted);
  cursor: not-allowed;
}
.date-nav__refresh {
  background: transparent;
  color: var(--kgs-blue);
  border: 2px solid var(--kgs-blue);
  border-radius: var(--radius-md);
  padding: .4rem .9rem;
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  margin-left: auto;
}
.date-nav__refresh:hover {
  background: var(--kgs-blue);
  color: #fff;
}

/* ── SAGE monitor link ────────────────────────────────────── */
.station-hero__links {
  margin-top: .9rem;
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}
.sage-monitor-link {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .4rem .9rem;
  background: var(--kgs-blue);
  color: #fff;
  border-radius: var(--radius-md);
  font-size: .88rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--transition);
}
.sage-monitor-link:hover { background: var(--kgs-blue-dark); color: #fff; }
.sage-monitor-note {
  font-size: .82rem;
  color: var(--text-muted);
  font-style: italic;
}

/* ── Collapsible sections ─────────────────────────────────── */
.collapsibles {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.collapsible {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.collapsible summary {
  padding: .7rem 1.1rem;
  cursor: pointer;
  font-weight: 600;
  font-size: .92rem;
  color: var(--text-secondary);
  background: var(--surface-alt);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  user-select: none;
  transition: background var(--transition), color var(--transition);
  border-bottom: 1px solid transparent;
}
.collapsible summary::-webkit-details-marker { display: none; }
.collapsible summary::after { display: none; } /* replaced by explicit FA chevron */
.collapsible__label {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex: 1;
}
.collapsible__chevron {
  font-size: .75rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.collapsible[open] > summary {
  border-bottom-color: var(--border);
  color: var(--kgs-blue);
}
.collapsible[open] > summary .collapsible__chevron { transform: rotate(90deg); }
.collapsible summary:hover { background: var(--kgs-blue-light); }
.collapsible summary:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: -3px;
}
.collapsible__body {
  padding: .9rem 1.25rem;
  font-size: .9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.collapsible__body p + p { margin-top: 0; }

/* ── Station index page ───────────────────────────────────── */
.index-map {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}
.index-map iframe {
  display: block;
  width: 100%;
  border: none;
}
.station-group {
  margin-bottom: 2rem;
}
.station-group__heading {
  font-size: 1rem;
  font-weight: 700;
  color: var(--kgs-blue);
  text-transform: uppercase;
  letter-spacing: .06em;
  border-bottom: 2px solid var(--kgs-blue-light);
  padding-bottom: .35rem;
  margin-bottom: .75rem;
}
.station-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: .6rem;
  list-style: none;
}
.station-list__item a {
  display: flex;
  flex-direction: column;
  padding: .65rem .9rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-sm);
}
.station-list__item a:hover {
  border-color: var(--kgs-blue);
  box-shadow: 0 2px 8px rgba(0,63,135,.15);
}
.station-list__name {
  font-weight: 600;
  font-size: .95rem;
}
.station-list__code {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--kgs-green);
  background: #e8f5e8;
  padding: .1rem .35rem;
  border-radius: var(--radius-sm);
  align-self: flex-start;
}
/* Footer row of each station card: code on the left, flags bottom-right */
.station-list__footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: .5rem;
  margin-top: auto;      /* push to the bottom so cards line up */
  padding-top: .5rem;
}
.station-list__flags {
  display: inline-flex;
  gap: .25rem;
  flex-shrink: 0;
}

/* Instrument-type flags (WM / SM / VA) */
.station-flag {
  font-family: var(--font-mono);
  font-size: 1.0rem;          /* bump for legibility (WM was cramped) */
  font-weight: 600;
  letter-spacing: .03em;
  color: #fff;
  line-height: 1;
  padding: .22rem .4rem;
  border-radius: var(--radius-sm);
}
.station-flag--sm { background: #b55c17 } /* strong-motion — amber  */
.station-flag--wm { background: #233f9c; } /* weak-motion   — blue   */
.station-flag--va { background: #ad0723; } /* vertical array — violet */

/* Flag legend below the station list */
.station-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem .8rem;
  margin-top: 1.25rem;
  padding: .85rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: .85rem;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
}
.station-legend__title { font-weight: 700; }

/* Legend entries double as filter toggles */
.station-legend__item {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: none;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: .22rem .6rem .22rem .3rem;
  font: inherit;
  color: inherit;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}
.station-legend__item:hover { background: var(--surface-alt); }
.station-legend__item.is-active {
  background: var(--kgs-blue-light);
  border-color: var(--kgs-blue);
  font-weight: 600;
  color: var(--kgs-blue-dark);
}
.station-legend__item:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}
.station-legend__clear {
  background: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .22rem .8rem;
  font: inherit;
  font-size: .82rem;
  font-weight: 600;
  color: var(--kgs-blue);
  cursor: pointer;
  transition: background var(--transition);
}
.station-legend__clear:hover { background: var(--kgs-blue-light); }
.station-legend__count {
  font-size: .82rem;
  color: var(--text-muted);
}

/* ── Special network cards (index page) ───────────────────── */
.special-networks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: .75rem;
}
.special-network-card {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--kgs-blue);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow-sm);
}
.special-network-card:hover {
  border-left-color: var(--kgs-red);
  box-shadow: 0 2px 10px rgba(0,63,135,.15);
  color: var(--text-primary);
}
.special-network-card__icon {
  font-size: 1.4rem;
  color: var(--kgs-blue);
  margin-bottom: .1rem;
}
.special-network-card:hover .special-network-card__icon { color: var(--kgs-red); }
.special-network-card__title {
  font-weight: 700;
  font-size: .97rem;
  color: var(--kgs-blue);
}
.special-network-card:hover .special-network-card__title { color: var(--kgs-red); }
.special-network-card__desc {
  font-size: .83rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── Channel sections ─────────────────────────────────────── */
.channel-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 1.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.channel-section__header {
  background: var(--kgs-blue);
  color: #fff;
  padding: .6rem 1.25rem;
  transition: background .15s ease;
}
.channel-section__header.is-clickable { cursor: pointer; }
.channel-section__header.is-clickable:hover { background: var(--kgs-blue-dark, #003c80); }
.channel-section__title-row {
  display: flex;
  align-items: center;
  gap: .6rem;
}
.channel-section__code {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 500;
  padding: .1rem .45rem;
  border-radius: var(--radius-sm);
  flex: 0 0 auto;
}
/* Location + depth shown right on the blue bar, next to the channel code */
.channel-section__meta {
  font-family: var(--font-mono);
  font-size: .8rem;
  font-weight: 500;
  color: #fff;
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.28);
  padding: .1rem .5rem;
  border-radius: 999px;
  white-space: nowrap;
  margin-right: auto;
}
.channel-section__meta:empty { display: none; }

.channel-section__sage-link {
  color: #fff;
  text-decoration: none;
  font-size: .78rem;
  opacity: .85;
}
.channel-section__sage-link:hover { 
  opacity: 1; 
  color: #fff;
  text-decoration: underline;
  font-size: .82rem;
  opacity: .9;
}
.channel-section__iris-link:hover {
  color: #fff;
  opacity: 1;
}

/* Distinct "Download" call-to-action inside the info panel */
.channel-section__download-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .4rem .75rem;
  background: #fff;
  color: var(--kgs-blue);
  font-weight: 600;
  font-size: .82rem;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,.4);
  transition: background .15s ease, color .15s ease;
}
.channel-section__download-btn:hover,
.channel-section__download-btn:focus-visible {
  background: var(--kgs-red);
  color: #fff;
  border-color: var(--kgs-red);
  outline: none;
}
.channel-section__download-btn i.fa-download { font-size: .95rem; }

.channel-section__toggle {
  background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.45);
  color: #fff;
  padding: .3rem .7rem;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .02em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  flex-shrink: 0;
  transition: background var(--transition);
}
.channel-section__toggle:hover,
.channel-section__header.is-clickable:hover .channel-section__toggle,
.channel-section__toggle[aria-expanded="true"] { background: rgba(255,255,255,.32); }
.channel-section__toggle:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}
.channel-section__toggle-icon { font-size: .95rem; }
.channel-section__toggle-label { white-space: nowrap; }
.channel-section__toggle-chevron {
  font-size: .7rem;
  transition: transform .2s ease;
}
.channel-section__toggle[aria-expanded="true"] .channel-section__toggle-chevron {
  transform: rotate(180deg);
}
@media (max-width: 480px) {
  .channel-section__toggle-label { display: none; }
}
.channel-section__desc-panel {
  margin-top: .45rem;
  padding-top: .45rem;
  border-top: 1px solid rgba(255,255,255,.2);
  display: flex;
  flex-direction: column;
  gap: .2rem;
}
.channel-section__desc-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .15rem .85rem;
  font-size: .82rem;
  margin: 0;
}
.channel-section__desc-list dt {
  font-weight: 600;
  opacity: .8;
  white-space: nowrap;
  margin: 0;
}
.channel-section__desc-list dd {
  margin: 0;
  opacity: .95;
}
.channel-section__body {
  padding: 1rem 1.25rem;
}

/* ── Loading / error states ───────────────────────────────── */
.plot-status {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: 1rem;
  border-radius: var(--radius-md);
  font-size: .92rem;
  margin-bottom: .5rem;
}
.plot-status--loading {
  background: var(--kgs-blue-light);
  color: var(--kgs-blue);
  border: 1px solid #b8c8e0;
}
.plot-status--error {
  background: #fff0f0;
  color: var(--error);
  border: 1px solid #f0b8b8;
}
.plot-status__spinner {
  width: 1.2rem; height: 1.2rem;
  border: 3px solid rgba(0,63,135,.2);
  border-top-color: var(--kgs-blue);
  border-radius: 50%;
  animation: spin .8s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Helicorder image ─────────────────────────────────────── */
.helicorder-img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #f0f0f0;
}

/* Source badge shown at the top of each helicorder image (NGF vs KGS) */
.helicorder-source {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 500;
  line-height: 1;
  padding: .28rem .6rem;
  margin-bottom: .45rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--text-secondary);
}
.helicorder-source[data-source="NGF"] {
  background: var(--kgs-blue-light);
  border-color: #b7d3f0;
  color: var(--kgs-blue-dark);
}
.helicorder-source[data-source="KGS"] {
  background: #fbf3e4;
  border-color: #e3c9a0;
  color: #7a4d00;
}
.helicorder-source i { font-size: .8rem; }

/* ── Related programs aside ───────────────────────────────── */
.related-programs {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--kgs-blue);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  margin-top: 1.5rem;
}
.related-programs__heading {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-secondary);
  margin: 0 0 .6rem;
}
.related-programs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.related-programs__list a {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-size: .88rem;
  font-weight: 600;
  color: var(--kgs-blue);
  text-decoration: none;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .35rem .75rem;
}
.related-programs__list a:hover {
  color: var(--kgs-red);
  border-color: var(--kgs-red);
}
.related-programs__tag {
  font-size: .72rem;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: .2rem;
}

/* ── Citation blocks ──────────────────────────────────────── */
.citation {
  margin: .5rem 0;
  padding: .6rem .9rem;
  background: var(--surface-alt);
  border-left: 3px solid var(--kgs-blue);
  border-radius: var(--radius-sm);
  font-size: .88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ── Contact aside ────────────────────────────────────────── */
.contact-aside {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  margin-top: 1.5rem;
  font-size: .9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: .6rem;
  flex-wrap: wrap;
}
.contact-aside a {
  color: var(--kgs-blue);
  font-weight: 600;
}
.contact-aside a:hover { color: var(--kgs-blue-dark); }

/* ── Error / not-found page ───────────────────────────────── */
.error-box {
  background: #fff0f0;
  border: 2px solid #e0a0a0;
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  margin-top: 2rem;
}
.error-box h2 { color: var(--kgs-red); margin-bottom: .75rem; }

/* ── Footer ───────────────────────────────────────────────── */
.site-footer {
  border-top: 2px solid var(--border);
  padding: 1rem 1.5rem;
  margin-top: 2rem;
  font-size: .82rem;
  color: var(--text-muted);
  text-align: center;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 760px) {
  .station-hero { flex-direction: column; }
  .station-hero__map { flex: 1 1 auto; width: 100%; }
  .station-hero__map iframe { min-height: 220px; height: 220px; }
}
@media (max-width: 640px) {
  .site-header__logo-img { height: 38px; }
  .site-header__title { font-size: 1.1rem; }
  .station-hero__name { font-size: 1.4rem; }
  .station-hero__links { flex-direction: column; align-items: flex-start; }
  .date-nav { flex-direction: column; align-items: stretch; }
  .date-nav__date { min-width: unset; }
  .date-nav__refresh { margin-left: 0; }
  .station-list { grid-template-columns: 1fr 1fr; }
}

/* ── High-contrast / forced-colors ───────────────────────── */
@media (forced-colors: active) {
  .date-nav__btn,
  .date-nav__refresh { border: 2px solid ButtonText; }
  .skip-link { forced-color-adjust: none; }
}

/* ── Print ────────────────────────────────────────────────── */
@media print {
  .date-nav, .site-nav, .skip-link, .contact-aside { display: none; }
  .helicorder-img { max-width: 100%; }
}