/* The World — a near-black earth where the works are the light.
   Palette from the reference recordings: dark-purple-under-amber — a
   violet-black void, lavender dot-matrix land, warm amber counts
   (#e39a5e / #eba76a, ≥8:1 — see site/generate/worldmap.ts). Chrome is
   liquid glass: heavy saturated backdrop blur, a sheen gradient, specular
   edges, glass cards inside glass panels. Typography stays the site's own. */

* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #07060b;
  --ink: #f0ece2;
  --ink-2: #a09aa8;
  --amber: #e39a5e;
  --amber-2: #eba76a;
  --glass: rgba(36, 30, 52, 0.44);
  --glass-card: rgba(255, 255, 255, 0.07);
  --glass-line: rgba(255, 255, 255, 0.16);
  --glass-hi: inset 0 1px 0 rgba(255, 255, 255, 0.18), inset 0 -1px 0 rgba(0, 0, 0, 0.28);
  --sheen: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02) 42%, rgba(255, 255, 255, 0) 62%);
  --serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Iowan Old Style", Palatino, Georgia, serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --sat: env(safe-area-inset-top, 0px);
  --sab: env(safe-area-inset-bottom, 0px);
  --sal: env(safe-area-inset-left, 0px);
  --sar: env(safe-area-inset-right, 0px);
}

html, body { height: 100%; }
[hidden] { display: none !important; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-font-smoothing: antialiased;
  user-select: none;
  -webkit-user-select: none;
}

#world { position: fixed; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; cursor: grab; }
#world.dragging { cursor: grabbing; }
#world.hover { cursor: pointer; }

body::after {
  content: '';
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(130% 100% at 50% 40%, transparent 62%, rgba(0, 0, 0, 0.5) 100%);
}

.hud { position: fixed; z-index: 5; }

/* one glass, everywhere */
.glassy {
  background-color: var(--glass);
  background-image: var(--sheen);
  border: 1px solid var(--glass-line);
  backdrop-filter: blur(40px) saturate(190%);
  -webkit-backdrop-filter: blur(40px) saturate(190%);
  box-shadow: var(--glass-hi), 0 14px 44px rgba(0, 0, 0, 0.5);
}

/* ------------------------------------------------------------- top chrome -- */

.hud-top {
  top: 0; left: 0; right: 0;
  padding: calc(10px + var(--sat)) calc(16px + var(--sar)) 10px calc(16px + var(--sal));
  display: flex; align-items: baseline; gap: 12px;
  pointer-events: none;
  background: linear-gradient(rgba(7, 6, 11, 0.8), rgba(7, 6, 11, 0));
}
.hud-top > * { pointer-events: auto; }
.wordmark { font-family: var(--serif); font-size: 17px; color: var(--ink); text-decoration: none; }
.wordmark:hover { color: var(--amber-2); }
.page-title { font-family: var(--serif); font-style: italic; color: var(--amber-2); font-size: 15px; }
.hud-links { margin-left: auto; display: flex; gap: 14px; }
.hud-links a { color: var(--ink-2); text-decoration: none; font-size: 12.5px; letter-spacing: 0.04em; text-transform: uppercase; }
.hud-links a:hover { color: var(--ink); }

.title-pill {
  position: fixed; z-index: 5; top: calc(44px + var(--sat)); left: 50%; transform: translateX(-50%);
  font-size: 12px; letter-spacing: 0.06em; color: var(--ink-2);
  background-color: var(--glass); background-image: var(--sheen);
  border: 1px solid var(--glass-line); border-radius: 999px;
  padding: 8px 18px;
  backdrop-filter: blur(40px) saturate(190%); -webkit-backdrop-filter: blur(40px) saturate(190%);
  box-shadow: var(--glass-hi), 0 10px 34px rgba(0, 0, 0, 0.45);
  white-space: nowrap;
}
.title-pill strong { color: var(--amber-2); font-weight: 600; }

/* ---------------------------------------------------------- country panel -- */

.panel-toggle {
  position: fixed; z-index: 6; top: calc(46px + var(--sat)); right: calc(12px + var(--sar));
  font: 11px/1 var(--sans); letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-2); cursor: pointer; border-radius: 999px; padding: 9px 15px;
  background-color: var(--glass); background-image: var(--sheen);
  border: 1px solid var(--glass-line);
  backdrop-filter: blur(40px) saturate(190%); -webkit-backdrop-filter: blur(40px) saturate(190%);
  box-shadow: var(--glass-hi), 0 10px 34px rgba(0, 0, 0, 0.45);
}
.panel-toggle:hover { color: var(--ink); }
.panel-toggle[aria-expanded="true"] { display: none; }

.panel {
  position: fixed; z-index: 6;
  top: calc(46px + var(--sat)); right: calc(12px + var(--sar)); bottom: calc(96px + var(--sab));
  width: min(310px, 88vw);
  display: flex; flex-direction: column;
  border-radius: 24px; overflow: hidden;
  background-color: var(--glass); background-image: var(--sheen);
  border: 1px solid var(--glass-line);
  backdrop-filter: blur(44px) saturate(195%); -webkit-backdrop-filter: blur(44px) saturate(195%);
  box-shadow: var(--glass-hi), 0 24px 70px rgba(0, 0, 0, 0.6);
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px 8px;
}
.panel-head h2 { font-family: var(--serif); font-size: 15.5px; font-weight: 500; color: var(--amber-2); letter-spacing: 0.02em; }
.panel-min {
  width: 27px; height: 27px; border-radius: 50%;
  background: var(--glass-card); color: var(--ink-2); border: 1px solid var(--glass-line);
  box-shadow: var(--glass-hi);
  font-size: 14px; line-height: 1; cursor: pointer;
}
.panel-min:hover { color: var(--ink); }
.panel-search { padding: 0 12px 10px; }
.panel-search input {
  width: 100%; font: 12.5px/1.4 var(--sans); color: var(--ink);
  background: rgba(255, 255, 255, 0.07); border: 1px solid var(--glass-line); border-radius: 12px;
  box-shadow: var(--glass-hi);
  padding: 9px 12px; outline: none;
}
.panel-search input::placeholder { color: var(--ink-2); }
.panel-search input:focus { border-color: rgba(227, 154, 94, 0.5); }

.clist { list-style: none; overflow-y: auto; overscroll-behavior: contain; padding: 2px 10px 12px; flex: 1; }
.clist, .cdetail { scrollbar-width: thin; scrollbar-color: rgba(233, 228, 216, 0.16) transparent; }
.clist::-webkit-scrollbar, .cdetail::-webkit-scrollbar { width: 6px; }
.clist::-webkit-scrollbar-thumb, .cdetail::-webkit-scrollbar-thumb { background: rgba(233, 228, 216, 0.14); border-radius: 4px; }
.clist::-webkit-scrollbar-track, .cdetail::-webkit-scrollbar-track { background: transparent; }
.clist li + li { margin-top: 7px; }
.clist button {
  display: flex; align-items: center; gap: 10px; width: 100%;
  background-color: var(--glass-card); background-image: var(--sheen);
  border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 16px;
  box-shadow: var(--glass-hi), 0 3px 10px rgba(0, 0, 0, 0.25);
  color: var(--ink); font: 13.5px/1.3 var(--sans); text-align: left;
  padding: 11px 13px; cursor: pointer;
  transition: background-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.clist button:hover {
  background-color: rgba(255, 255, 255, 0.11);
  transform: translateY(-1px);
  box-shadow: var(--glass-hi), 0 7px 18px rgba(0, 0, 0, 0.35);
}
.clist button[aria-pressed="true"] { background-color: rgba(255, 255, 255, 0.15); border-color: rgba(255, 255, 255, 0.2); }
.clist .cname { display: flex; flex-direction: column; gap: 2px; font-weight: 600; min-width: 0; }
.clist .cname small { font-weight: 400; font-size: 10.5px; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 150px; }
.clist .bar-line { width: 40px; flex: none; margin-left: auto; height: 2.5px; border-radius: 2px; background: rgba(201, 124, 73, 0.9); transform-origin: left; }
.clist .n { color: var(--amber-2); font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums; min-width: 26px; text-align: right; }

.cdetail { overflow-y: auto; overscroll-behavior: contain; padding: 4px 14px 14px; flex: 1; }
.back {
  font: 11px/1 var(--sans); letter-spacing: 0.08em;
  color: var(--ink-2); background: var(--glass-card);
  border: 1px solid var(--glass-line); border-radius: 999px;
  box-shadow: var(--glass-hi);
  padding: 7px 13px; cursor: pointer; margin-bottom: 12px;
}
.back:hover { color: var(--ink); }
.cdetail h3 { font-family: var(--serif); font-size: 20px; font-weight: 500; }
.cd-museum { font-size: 12px; color: var(--ink-2); margin: 4px 0 12px; line-height: 1.45; }
.cd-stats { display: flex; gap: 8px; margin-bottom: 12px; }
.cd-stats div {
  flex: 1; text-align: center; padding: 10px 6px;
  background-color: var(--glass-card); background-image: var(--sheen);
  border: 1px solid rgba(255, 255, 255, 0.08); border-radius: 14px;
  box-shadow: var(--glass-hi);
}
.cd-stats strong { display: block; font-size: 16px; color: var(--amber-2); font-weight: 600; }
.cd-stats span { font-size: 9.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-2); }
.cgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; }
.cgrid button {
  position: relative; aspect-ratio: 1; border-radius: 11px; overflow: hidden;
  background: var(--glass-card); border: 1px solid rgba(255, 255, 255, 0.05); cursor: pointer; padding: 0;
  box-shadow: var(--glass-hi);
}
.cgrid img { width: 100%; height: 100%; object-fit: cover; display: block; opacity: 0.92; }
.cgrid button:hover img { opacity: 1; }
.cgrid .noimg { width: 100%; height: 100%; display: grid; place-items: center; color: var(--ink-2); font-size: 22px; font-family: var(--serif); font-style: italic; }

/* ------------------------------------------------------------- bottom bar -- */

.hud-bottom {
  left: 0; right: 0; bottom: 0;
  padding: 10px calc(16px + var(--sar)) calc(12px + var(--sab)) calc(16px + var(--sal));
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  background: linear-gradient(rgba(7, 6, 11, 0), rgba(7, 6, 11, 0.85));
  pointer-events: none;
}
.bar {
  pointer-events: auto;
  display: flex; align-items: center; flex-wrap: wrap; justify-content: center; gap: 8px;
  border-radius: 26px; padding: 8px 12px 8px 18px;
  background-color: var(--glass); background-image: var(--sheen);
  border: 1px solid var(--glass-line);
  backdrop-filter: blur(44px) saturate(195%); -webkit-backdrop-filter: blur(44px) saturate(195%);
  box-shadow: var(--glass-hi), 0 16px 50px rgba(0, 0, 0, 0.55);
  max-width: 96vw;
}
.bar-stats { font-size: 12px; letter-spacing: 0.04em; color: var(--ink-2); white-space: nowrap; }
.bar-stats strong { color: var(--amber-2); font-weight: 600; }
.bar-sep { width: 1px; align-self: stretch; background: var(--glass-line); }
.seg { display: flex; gap: 5px; }
.chip {
  font: 12px/1 var(--sans); letter-spacing: 0.02em;
  color: var(--ink-2);
  background-color: var(--glass-card); background-image: var(--sheen);
  border: 1px solid rgba(255, 255, 255, 0.09);
  box-shadow: var(--glass-hi), 0 3px 10px rgba(0, 0, 0, 0.25);
  border-radius: 999px; padding: 9px 14px; cursor: pointer;
  transition: color 0.2s, background-color 0.2s, border-color 0.2s, transform 0.2s;
  white-space: nowrap;
}
.chip:hover { color: var(--ink); background-color: rgba(255, 255, 255, 0.11); transform: translateY(-1px); }
.chip[aria-selected="true"], .chip.toggle[aria-pressed="true"] {
  color: var(--amber-2); background: rgba(227, 154, 94, 0.16); border-color: rgba(227, 154, 94, 0.42);
}
.bar-note { pointer-events: none; font-size: 11px; font-style: italic; font-family: var(--serif); color: var(--ink-2); }

.chip:focus-visible, .clist button:focus-visible, .cgrid button:focus-visible,
.panel-toggle:focus-visible, .panel-min:focus-visible, .back:focus-visible {
  outline: 1px solid var(--amber); outline-offset: 2px;
}

/* ---------------------------------------------------------------- tooltip -- */

.tip {
  position: fixed; z-index: 9; pointer-events: none;
  max-width: 260px;
  font-size: 12px; line-height: 1.4; color: var(--ink);
  background-color: rgba(30, 25, 44, 0.6); background-image: var(--sheen);
  border: 1px solid var(--glass-line); border-radius: 12px;
  box-shadow: var(--glass-hi), 0 8px 28px rgba(0, 0, 0, 0.5);
  padding: 7px 11px;
  backdrop-filter: blur(30px) saturate(180%); -webkit-backdrop-filter: blur(30px) saturate(180%);
}
.tip small { display: block; color: var(--ink-2); font-size: 10.5px; letter-spacing: 0.03em; }

/* ------------------------------------------------------------------- card -- */

.card {
  position: fixed; z-index: 8;
  left: calc(12px + var(--sal)); bottom: calc(96px + var(--sab));
  width: min(330px, calc(100vw - 24px));
  border-radius: 22px; overflow: hidden;
  background-color: rgba(30, 25, 44, 0.55); background-image: var(--sheen);
  border: 1px solid var(--glass-line);
  backdrop-filter: blur(44px) saturate(195%); -webkit-backdrop-filter: blur(44px) saturate(195%);
  box-shadow: var(--glass-hi), 0 24px 70px rgba(0, 0, 0, 0.65);
  animation: card-in 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}
@keyframes card-in { from { opacity: 0; transform: translateY(12px); } }
.card-close {
  position: absolute; top: 8px; right: 8px; z-index: 2;
  width: 30px; height: 30px; border-radius: 50%;
  background: rgba(10, 8, 6, 0.6); color: var(--ink); border: 1px solid var(--glass-line);
  box-shadow: var(--glass-hi);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  font-size: 13px; cursor: pointer;
}
.card-fig { background: rgba(0, 0, 0, 0.55); }
.card-fig img { width: 100%; max-height: 34vh; object-fit: contain; display: block; }
.card-body { padding: 13px 15px 15px; display: grid; gap: 6px; user-select: text; -webkit-user-select: text; }
.card-title { font-family: var(--serif); font-size: 18px; line-height: 1.2; font-weight: 500; }
.card-artist { font-size: 12.5px; color: var(--ink); }
.card-meta, .card-museum { font-size: 12px; color: var(--ink-2); }
.card-links { display: flex; gap: 14px; margin-top: 4px; }
.card-link { font-size: 12px; color: var(--amber-2); text-decoration: none; }
.card-link:hover { text-decoration: underline; }

/* ------------------------------------------------------------- toast/fail -- */

.toast {
  position: fixed; z-index: 30; left: 50%; bottom: calc(96px + var(--sab));
  transform: translateX(-50%);
  max-width: min(92vw, 480px);
  font-size: 12.5px; line-height: 1.45; color: var(--ink);
  background-color: var(--glass); background-image: var(--sheen);
  border: 1px solid var(--glass-line); border-radius: 14px;
  box-shadow: var(--glass-hi), 0 12px 40px rgba(0, 0, 0, 0.55);
  padding: 10px 14px;
  backdrop-filter: blur(40px) saturate(190%); -webkit-backdrop-filter: blur(40px) saturate(190%);
}
.fail {
  position: fixed; inset: 0; z-index: 40;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px; text-align: center; padding: 24px; background: var(--bg);
}
.fail h1 { font-family: var(--serif); font-weight: 500; }
.fail a { color: var(--amber-2); }
.fail[hidden] { display: none; }

@media (max-width: 720px) {
  .hud-links { display: none; }
  .title-pill { font-size: 11px; max-width: 92vw; overflow: hidden; text-overflow: ellipsis; }
  .panel-toggle { top: calc(86px + var(--sat)); }
  .panel { top: calc(86px + var(--sat)); bottom: auto; max-height: 56vh; }
}

@media (prefers-reduced-motion: reduce) {
  .card { animation: none; }
}