/* ==========================================================================
   explorer.css — the interactive globe on the overview page
   Layout: a left column with the text and the site panel; the globe fits
   itself into the free space on the right (js/explorer.js → layout()).
   On phones: text on top, globe in the middle, site tiles at the bottom.
   ========================================================================== */

.explorer {
  position: relative; isolation: isolate; overflow: hidden;
  height: 100vh; height: 100svh; min-height: 36rem; max-height: 68rem;
  background:
    radial-gradient(ellipse 55% 70% at 70% 55%, rgba(40, 80, 160, 0.24), transparent 70%),
    var(--c-ink);
  color: var(--c-on-dark);
}
/* subtle star field */
.explorer::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0.55; pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 12% 18%, #fff 50%, transparent 51%), radial-gradient(1px 1px at 28% 72%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 46% 12%, #fff 50%, transparent 51%), radial-gradient(1px 1px at 63% 86%, #fff 50%, transparent 51%),
    radial-gradient(1px 1px at 82% 22%, #fff 50%, transparent 51%), radial-gradient(1px 1px at 92% 64%, #fff 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 6% 52%, #fff 50%, transparent 51%), radial-gradient(1.5px 1.5px at 38% 42%, rgba(255,255,255,.7) 50%, transparent 51%),
    radial-gradient(1px 1px at 72% 6%, #fff 50%, transparent 51%), radial-gradient(1px 1px at 55% 58%, rgba(255,255,255,.6) 50%, transparent 51%);
}
.explorer__globe { position: absolute; inset: 0; width: 100%; height: 100%; touch-action: none; cursor: grab; }
.explorer__globe:active { cursor: grabbing; }
.explorer__markers { position: absolute; inset: 0; pointer-events: none; z-index: 2; }
.explorer.is-dragging .marker { pointer-events: none; }

/* ---- Grid: left column (text + sites) | free space for the globe ---------- */
.explorer__ui {
  position: absolute; inset: 0; z-index: 3; pointer-events: none;
  display: grid; grid-template-columns: minmax(0, 32rem) minmax(0, 1fr); column-gap: var(--space-7);
  padding-top: calc(var(--header-h) + clamp(var(--space-5), 7vh, var(--space-9)));
  padding-bottom: clamp(var(--space-5), 4.5vh, var(--space-7));
}
.explorer__side { display: flex; flex-direction: column; justify-content: space-between; gap: clamp(var(--space-5), 5vh, var(--space-8)); min-height: 0; }
.explorer__side > * { pointer-events: auto; }

.explorer__copy { display: grid; gap: clamp(var(--space-3), 2.4vh, var(--space-5)); justify-items: start; }
.explorer__copy .eyebrow { color: var(--c-on-dark-2); }
.explorer__title { font-size: var(--step-hero); font-weight: var(--fw-light); line-height: 1.02; letter-spacing: -0.03em; }
.explorer__title em { font-style: normal; color: var(--c-accent); }
.explorer__lead { max-width: 30rem; font-size: clamp(var(--step-0), 2.4vh, var(--step-1)); line-height: 1.45; font-weight: var(--fw-light); color: var(--c-on-dark-2); }
.explorer__copy .cluster { margin-top: var(--space-2); }
.has-pop .explorer__copy { opacity: 0.3; transition: opacity var(--dur-2); }

/* ---- Site panel: tidy grid of tiles, 3 per row --------------------------- */
.site-panel {
  padding: var(--space-4); border-radius: var(--r-lg);
  background: rgba(255, 255, 255, 0.04); border: 1px solid var(--c-line-dark);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
}
.site-panel__head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); margin-bottom: var(--space-3); padding-inline: var(--space-1); }
.site-panel__title { font-size: var(--step--2); font-weight: var(--fw-semibold); letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--c-on-dark-2); }
.legend { display: flex; gap: var(--space-4); white-space: nowrap; font-size: var(--step--2); color: var(--c-on-dark-2); }
.legend > span { display: inline-flex; align-items: center; gap: 6px; }

.site-index { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-2); }
.site-index button {
  width: 100%; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; column-gap: var(--space-2); row-gap: 2px; align-items: center;
  padding: 10px var(--space-3); border-radius: var(--r-md); text-align: left;
  background: rgba(255, 255, 255, 0.06); border: 1px solid transparent; color: var(--c-on-dark);
  transition: background var(--dur-1), border-color var(--dur-1);
}
.site-index button:hover, .site-index button:focus-visible { background: rgba(255, 255, 255, 0.13); border-color: rgba(255, 255, 255, 0.2); }
.site-index__name { font-size: var(--step--1); font-weight: var(--fw-semibold); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.site-index__count { min-width: 20px; padding: 0 6px; border-radius: var(--r-pill); background: rgba(255, 255, 255, 0.12); font-size: var(--step--2); font-weight: var(--fw-semibold); line-height: 20px; text-align: center; color: var(--c-on-dark); }
.site-index__count--hub { background: none; padding: 0; color: var(--c-on-dark-3); font-weight: var(--fw-regular); }
.site-index__meta { grid-column: 2 / 4; font-size: var(--step--2); color: var(--c-on-dark-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dot { width: 8px; height: 8px; border-radius: 50%; flex: none; }
.dot--rf { background: var(--c-rf); box-shadow: 0 0 10px var(--c-rf); }
.dot--optical { background: var(--c-optical); box-shadow: 0 0 10px var(--c-optical); }
.dot--noc { background: var(--c-noc); box-shadow: 0 0 10px var(--c-noc); }

/* ---- Zoom buttons and hint (bottom right) --------------------------------- */
.explorer__tools { grid-column: 2; align-self: end; justify-self: end; display: flex; align-items: center; gap: var(--space-4); }
.explorer__zoom { display: flex; gap: var(--space-2); pointer-events: auto; }
.explorer__zoom .icon-btn { width: 40px; height: 40px; background: rgba(255, 255, 255, 0.08); border: 1px solid var(--c-line-dark); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.explorer__zoom .icon-btn:hover { background: rgba(255, 255, 255, 0.18); }

.explorer__hint {
  padding: var(--space-2) var(--space-4); border-radius: var(--r-pill);
  font-size: var(--step--2); letter-spacing: 0.02em; color: var(--c-on-dark-2); line-height: 24px;
  background: rgba(255, 255, 255, 0.06); border: 1px solid var(--c-line-dark);
  pointer-events: none; transition: background var(--dur-2), color var(--dur-2), opacity 1s;
  white-space: nowrap;
}
.explorer__hint.is-loud { background: var(--c-accent); color: var(--c-on-accent); }
.explorer__hint.is-faded { opacity: 0; }
.explorer__hint kbd { font: inherit; font-weight: var(--fw-semibold); }

/* ---- Lower screens (e.g. laptops with 125 % scaling) ---------------------- */
@media (max-height: 760px) and (min-width: 760px) {
  .site-panel { padding: var(--space-3); }
  .site-index button { padding: 8px var(--space-3); }
}
@media (max-height: 620px) and (min-width: 760px) {
  .explorer__copy .btn--ghost, .site-index__meta { display: none; }
}
@media (max-width: 1100px) and (min-width: 760px) {
  .explorer__ui { grid-template-columns: minmax(0, 26rem) minmax(0, 1fr); }
  .site-index { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .explorer__hint { display: none; }
}
/* ==========================================================================
   explorer.css — the interactive globe on the overview page
   Markers, the 3D pop-up (stage + data card), site list and controls.
   ========================================================================== */


/* ---- Markers ------------------------------------------------------------ */
.marker {
  position: absolute; left: 0; top: 0; pointer-events: auto;
  width: 0; height: 0; color: var(--c-on-dark);
  transition: opacity var(--dur-2);
}
.marker__body { position: absolute; left: 0; top: 0; }
.marker__leader { position: absolute; left: 0; top: 0; height: 1px; transform-origin: 0 50%; background: linear-gradient(90deg, var(--marker-c), rgba(255,255,255,0.15)); }
.marker__leader::before { content: ""; position: absolute; left: -3px; top: -3px; width: 7px; height: 7px; border-radius: 50%; background: var(--marker-c); }
.marker__leader[style*="width: 0"]::before { display: none; }
.marker__icon {
  position: absolute; left: -17px; top: -17px; width: 34px; height: 34px;
  display: grid; place-items: center; border-radius: 50%;
  background: rgba(10, 12, 18, 0.72); border: 1.5px solid var(--marker-c, var(--c-rf));
  box-shadow: 0 0 0 4px rgba(255, 200, 0, 0.0), 0 0 18px -2px var(--marker-c, var(--c-rf));
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  transition: transform var(--dur-2) var(--ease-out), background var(--dur-2), box-shadow var(--dur-2);
}
.marker__icon svg { width: 18px; height: 18px; }
.marker--rf { --marker-c: var(--c-rf); }
.marker--optical { --marker-c: var(--c-optical); }
.marker--noc { --marker-c: var(--c-noc); }
.marker--noc .marker__icon { width: 26px; height: 26px; left: -13px; top: -13px; }
.marker--noc .marker__icon svg { width: 14px; height: 14px; }
.marker__count {
  position: absolute; left: 8px; top: -24px; min-width: 18px; height: 18px; padding: 0 5px;
  border-radius: var(--r-pill); background: var(--marker-c); color: var(--c-ink);
  font-size: 11px; font-weight: var(--fw-semibold); line-height: 18px; text-align: center;
}
.marker__label {
  position: absolute; left: 50%; top: 22px; transform: translateX(-50%);
  font-size: var(--step--2); font-weight: var(--fw-semibold); letter-spacing: 0.08em; white-space: nowrap;
  color: var(--c-on-dark-2); text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
}
/* the NOC label sits to the left so it doesn't collide with Weilheim */
.marker--noc .marker__label { left: auto; right: 18px; top: -7px; transform: none; }
.marker:hover .marker__icon, .marker:focus-visible .marker__icon, .marker.is-active .marker__icon {
  transform: scale(1.18); background: var(--marker-c);
  color: var(--c-ink); box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.08), 0 0 28px var(--marker-c);
}
.marker:hover .marker__label, .marker.is-active .marker__label { color: var(--c-on-dark); }
.marker:focus-visible { outline: none; }
.marker.is-hidden { opacity: 0; pointer-events: none; }
.has-pop .marker:not(.is-active) { opacity: 0.45; }
.has-pop .marker.is-hidden { opacity: 0; }

/* ---- Pop-up: 3D stage + data card --------------------------------------- */
.pop { position: absolute; left: 0; top: 0; z-index: 5; width: calc(320px + 8px + 360px); pointer-events: none; }
.pop.pop--nostage { width: 360px; }
.pop__stage { position: absolute; left: 0; top: 0; width: 320px; height: 320px; pointer-events: none; opacity: 0; transform: translateY(24px) scale(0.92); transition: opacity var(--dur-3) var(--ease-out), transform var(--dur-3) var(--ease-out); }
.pop__stage canvas { width: 100%; height: 100%; }
.pop__stage::after { /* light beam from the marker */
  content: ""; position: absolute; left: 50%; bottom: -6px; width: 2px; height: 70px; margin-left: -1px;
  background: linear-gradient(to top, var(--c-accent), transparent); opacity: 0.8;
}
.pop--nostage .pop__stage { display: none; }
.pop__card {
  position: absolute; left: calc(320px + 8px); top: 0; width: 360px; pointer-events: auto;
  max-height: calc(100svh - var(--header-h) - var(--space-8)); overflow-y: auto; overscroll-behavior: contain;
  padding: var(--space-5); border-radius: var(--r-lg);
  background: rgba(14, 16, 23, 0.78); border: 1px solid var(--c-line-dark);
  -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur);
  box-shadow: var(--shadow-3);
  opacity: 0; transform: translateX(-12px); transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-3) var(--ease-out);
}
.pop--nostage .pop__card { left: 0; }
.pop--flip .pop__card { left: 0; transform: translateX(12px); }
.pop--flip .pop__stage { left: calc(360px + 8px); }
.pop.is-open .pop__stage { opacity: 1; transform: none; }
.pop.is-open .pop__card { opacity: 1; transform: none; }
.pop.is-pinned .pop__card { border-color: rgba(255, 200, 0, 0.45); }

.pop__head { display: flex; justify-content: space-between; align-items: center; gap: var(--space-3); }
.pop__code { font-size: var(--step--2); font-weight: var(--fw-semibold); letter-spacing: var(--tracking-wide); color: var(--c-on-dark-3); }
.pop__title { font-size: var(--step-3); margin-top: var(--space-3); }
.pop__place { font-size: var(--step--1); color: var(--c-on-dark-2); margin-top: var(--space-1); }
.pop__body { margin-top: var(--space-4); }
.pop__body .kv { font-size: var(--step--1); }
.pop__body .kv dt { color: var(--c-on-dark-3); }
.pop__body .kv dd { color: var(--c-on-dark); }
.pop__body .kv dt, .pop__body .kv dd { border-color: var(--c-line-dark); padding: 6px 0; }
.pop__body .kv dd span { display: block; }
.pop__body .kv dd .muted, .pop .muted { color: var(--c-on-dark-3); }
.pop__cta { margin-top: var(--space-5); width: 100%; }
.pop .kv { color: var(--c-on-dark); }
.pop .kv dt { color: var(--c-on-dark-3); }
.pop .kv dt, .pop .kv dd { border-color: var(--c-line-dark); }

/* ---- Phones: bottom sheet --------------------------------------------- */
@media (max-width: 759px) {
  .explorer { max-height: none; min-height: 100svh; }
  .explorer__ui { grid-template-columns: minmax(0, 1fr); padding-top: calc(var(--header-h) + var(--space-5)); padding-bottom: var(--space-5); }
  .explorer__lead { font-size: var(--step-0); }
  .explorer__copy .btn--ghost, .explorer__tools { display: none; }
  .site-panel { padding: 0; background: none; border: 0; -webkit-backdrop-filter: none; backdrop-filter: none; }
  .site-panel__head { padding-inline: 0; }
  .site-index { grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: 9.5rem; overflow-x: auto; scrollbar-width: none; scroll-snap-type: x mandatory; margin-inline: calc(-1 * var(--gutter)); padding-inline: var(--gutter); }
  .site-index::-webkit-scrollbar { display: none; }
  .site-index li { scroll-snap-align: start; }
  .site-index button { background: rgba(255, 255, 255, 0.08); }
  .has-pop .explorer__copy { opacity: 0; }
  .marker__icon { width: 28px; height: 28px; left: -14px; top: -14px; }
  .marker__icon svg { width: 15px; height: 15px; }
  .marker__count { left: 6px; top: -21px; min-width: 16px; height: 16px; line-height: 16px; font-size: 10px; }
  .marker__label { top: 17px; }
  .pop.pop--sheet { position: fixed; left: 0; right: 0; bottom: 0; top: auto; width: auto; transform: none !important; z-index: var(--z-modal); }
  .pop--sheet .pop__stage { position: relative; left: auto; top: auto !important; width: 100%; height: 220px; margin-bottom: -12px; }
  .pop--sheet .pop__card { position: relative; left: auto; width: auto; max-height: 52svh; border-radius: var(--r-lg) var(--r-lg) 0 0; transform: translateY(24px); background: rgba(14, 16, 23, 0.94); }
  .pop--sheet.is-open .pop__card { transform: none; }
  .pop--sheet .pop__stage::after { display: none; }
}

/* ---- No WebGL fallback: show the list only -------------------------------- */
.no-webgl .explorer__globe, .no-webgl .explorer__zoom, .no-webgl .explorer__hint, .no-webgl .legend { display: none; }

/* compact data list inside the pop-up */
.pop .kv { grid-template-columns: 6.25rem minmax(0, 1fr); gap: 0 var(--space-4); }
.pop__card { scrollbar-width: thin; scrollbar-color: rgba(255, 255, 255, 0.2) transparent; }
.pop__card::-webkit-scrollbar { width: 6px; }
.pop__card::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.2); border-radius: 3px; }