/* ============================================================
   大町の文化財 — 墨と余白
   トークン: 生成り・胡粉・墨・朱・藍。影色を必ず持つ。
   ============================================================ */

:root {
  --washi: #f5f1e8; /* 生成り */
  --gofun: #fbf9f4; /* 胡粉 */
  --sumi: #211f1c; /* 墨 */
  --usuzumi: #6e6a61; /* 薄墨 */
  --shu: #af3f2b; /* 朱 — 指定文化財 */
  --ai: #28527e; /* 藍 — 道祖神 */
  --koke: #5f6e3c; /* 苔 — 古墳 */
  --oudo: #a87f35; /* 黄土 — 縄文遺跡 */
  --kage: rgba(33, 31, 28, 0.12); /* 影色 */
  --hairline: rgba(33, 31, 28, 0.14);
  --halo: 0 0 2px rgba(245, 241, 232, 0.9), 0 0 10px rgba(245, 241, 232, 0.85);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --font-serif: "Shippori Mincho", "Hiragino Mincho ProN", serif;
  --font-sans: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--sumi);
  background: var(--washi);
  overflow: hidden;
}

#map {
  position: fixed;
  inset: 0;
  /* 地理院淡色地図を生成り方向へ調色 */
  filter: sepia(0.14) saturate(0.82) brightness(1.03) contrast(0.97);
}

/* ---- 題字（縦書き・パネルなし） ---------------------------- */

.masthead {
  position: fixed;
  top: 30px;
  left: 26px;
  z-index: 10;
  display: flex;
  flex-direction: row-reverse; /* 縦書きは右の行から読む */
  align-items: flex-start;
  gap: 16px;
  pointer-events: none;
}

.masthead h1 {
  margin: 0;
  writing-mode: vertical-rl;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(24px, 4.2vh, 32px);
  letter-spacing: 0.22em;
  line-height: 1;
  text-shadow: var(--halo);
}

.masthead .subtitle {
  margin: 6px 0 0;
  writing-mode: vertical-rl;
  font-size: 11.5px;
  letter-spacing: 0.28em;
  color: var(--usuzumi);
  text-shadow: var(--halo);
}

.seal {
  align-self: flex-end;
  margin-top: 18px;
  writing-mode: vertical-rl;
  font-family: var(--font-serif);
  font-size: 10px;
  letter-spacing: 0.1em;
  line-height: 1;
  color: var(--gofun);
  background: var(--shu);
  padding: 5px 4px;
  border-radius: 2px;
}

/* ---- 下部ツールバー（一本だけ） ----------------------------- */

.bar {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 5px;
  border-radius: 999px;
  background: rgba(251, 249, 244, 0.92);
  border: 1px solid var(--hairline);
  box-shadow: 0 10px 30px var(--kage);
  backdrop-filter: blur(10px);
}

.chip {
  appearance: none;
  border: none;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--usuzumi);
  padding: 7px 13px;
  border-radius: 999px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 7px;
  transition: color 240ms var(--ease-out), background 240ms var(--ease-out);
  white-space: nowrap;
}

.chip:hover {
  color: var(--sumi);
}

.chip[aria-pressed="true"] {
  color: var(--sumi);
}

.chip .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  background: transparent;
  transition: background 240ms var(--ease-out), border-color 240ms var(--ease-out);
}

.chip.shu[aria-pressed="true"] .dot {
  background: var(--shu);
  border-color: var(--shu);
}

.chip.ai[aria-pressed="true"] .dot {
  background: var(--ai);
  border-color: var(--ai);
}

.chip.koke[aria-pressed="true"] .dot {
  background: var(--koke);
  border-color: var(--koke);
}

.chip.oudo[aria-pressed="true"] .dot {
  background: var(--oudo);
  border-color: var(--oudo);
}

.chip .count {
  font-size: 11px;
  color: var(--usuzumi);
  font-weight: 500;
}

.chip.mode[aria-pressed="true"] {
  background: rgba(33, 31, 28, 0.06);
}

.bar-rule {
  width: 1px;
  height: 18px;
  margin: 0 6px;
  background: var(--hairline);
}

/* ---- 詳細ドロワー ------------------------------------------ */

.drawer {
  position: fixed;
  top: 18px;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  width: min(330px, calc(100vw - 36px));
  background: rgba(251, 249, 244, 0.97);
  border: 1px solid var(--hairline);
  border-radius: 6px;
  box-shadow: 0 18px 50px var(--kage);
  backdrop-filter: blur(12px);
  padding: 26px 24px;
  overflow-y: auto;
  transform: translateX(calc(100% + 26px));
  transition: transform 300ms var(--ease-out);
}

.drawer.is-open {
  transform: translateX(0);
}

.drawer-close {
  position: absolute;
  top: 12px;
  right: 12px;
  appearance: none;
  border: none;
  background: transparent;
  font-size: 16px;
  line-height: 1;
  color: var(--usuzumi);
  cursor: pointer;
  padding: 6px;
  transition: color 200ms var(--ease-out);
}

.drawer-close:hover {
  color: var(--sumi);
}

.kind-tag {
  display: inline-block;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  padding: 3px 9px;
  border-radius: 2px;
  border: 1px solid currentColor;
}

.kind-tag.shu {
  color: var(--shu);
}

.kind-tag.ai {
  color: var(--ai);
}

.kind-tag.koke {
  color: var(--koke);
}

.kind-tag.oudo {
  color: var(--oudo);
}

.drawer .furigana {
  margin: 18px 0 2px;
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--usuzumi);
}

.drawer h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 21px;
  line-height: 1.45;
  letter-spacing: 0.04em;
}

.drawer hr {
  margin: 18px 0;
  border: none;
  border-top: 1px solid var(--hairline);
}

.drawer dl {
  margin: 0;
  display: grid;
  gap: 13px;
}

.drawer dt {
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--usuzumi);
}

.drawer dd {
  margin: 3px 0 0;
  font-size: 13.5px;
  line-height: 1.6;
}

.chip .caret {
  font-size: 9px;
  color: var(--usuzumi);
}

/* ---- 絞り込みポップオーバー --------------------------------- */

.popover {
  position: fixed;
  bottom: 78px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 12;
  min-width: 190px;
  padding: 6px;
  display: grid;
  gap: 2px;
  background: rgba(251, 249, 244, 0.97);
  border: 1px solid var(--hairline);
  border-radius: 6px;
  box-shadow: 0 14px 40px var(--kage);
  backdrop-filter: blur(10px);
}

.popover[hidden] {
  display: none;
}

.popover-item {
  appearance: none;
  border: none;
  background: transparent;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 8px 12px;
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--sumi);
  cursor: pointer;
  transition: background 200ms var(--ease-out);
}

.popover-item:hover {
  background: rgba(33, 31, 28, 0.05);
}

.popover-item.is-selected {
  background: rgba(33, 31, 28, 0.07);
}

.popover-item.is-selected .popover-name {
  color: var(--shu);
}

.popover-item .count {
  font-size: 11px;
  color: var(--usuzumi);
}

/* ---- 空中写真サムネイル ------------------------------------- */

.photo-figure {
  margin: 20px 0 0;
}

.photo-thumb {
  position: relative;
  overflow: hidden;
  margin: 0 auto;
  max-width: 100%;
  border-radius: 4px;
  border: 1px solid var(--hairline);
}

.photo-thumb img {
  position: absolute;
  width: 256px;
  height: 256px;
  max-width: none;
  display: block;
}

.photo-thumb::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  margin: -5px 0 0 -5px;
  border-radius: 50%;
  border: 1.5px solid var(--gofun);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
}

.photo-thumb.shu::after {
  background: var(--shu);
}

.photo-thumb.ai::after {
  background: var(--ai);
}

.photo-thumb.koke::after {
  background: var(--koke);
}

.photo-thumb.oudo::after {
  background: var(--oudo);
}

.photo-caption {
  margin-top: 6px;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--usuzumi);
  text-align: right;
}

/* ---- ホバーラベル ------------------------------------------ */

.tooltip {
  position: fixed;
  z-index: 30;
  pointer-events: none;
  background: rgba(251, 249, 244, 0.96);
  border: 1px solid var(--hairline);
  border-radius: 3px;
  box-shadow: 0 6px 18px var(--kage);
  padding: 5px 10px;
  font-size: 11.5px;
  letter-spacing: 0.05em;
  max-width: 240px;
}

.tooltip[hidden] {
  display: none;
}

/* ---- 状態表示（読み込み・エラー） --------------------------- */

.notice {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 15;
  background: rgba(251, 249, 244, 0.95);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 9px 16px;
  font-size: 12px;
  color: var(--usuzumi);
  box-shadow: 0 8px 24px var(--kage);
}

.notice.is-error {
  color: var(--shu);
}

.notice[hidden] {
  display: none;
}

/* ---- MapLibre 標準 UI の調色 -------------------------------- */

.maplibregl-ctrl-bottom-right .maplibregl-ctrl-attrib {
  background: rgba(245, 241, 232, 0.85);
  font-size: 10px;
  color: var(--usuzumi);
  font-family: var(--font-sans);
}

.maplibregl-ctrl-attrib a {
  color: var(--usuzumi);
}

.maplibregl-ctrl-group {
  background: rgba(251, 249, 244, 0.94);
  border: 1px solid var(--hairline);
  box-shadow: 0 6px 18px var(--kage);
}

.maplibregl-ctrl-group button + button {
  border-top: 1px solid var(--hairline);
}

/* ---- モバイル ----------------------------------------------- */

@media (max-width: 700px) {
  .masthead {
    top: 18px;
    left: 16px;
    gap: 10px;
  }

  .masthead h1 {
    font-size: 21px;
  }

  .masthead .subtitle {
    display: none;
  }

  .bar {
    bottom: 14px;
    max-width: calc(100vw - 20px);
    overflow-x: auto;
  }

  .chip {
    padding: 7px 10px;
    font-size: 12px;
  }

  .popover {
    bottom: 70px;
    max-width: calc(100vw - 24px);
  }

  /* ドロワーはボトムシートに */
  .drawer {
    top: auto;
    left: 12px;
    right: 12px;
    bottom: 12px;
    width: auto;
    max-height: 52vh;
    transform: translateY(calc(100% + 20px));
  }

  .drawer.is-open {
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .drawer,
  .chip,
  .chip .dot {
    transition: none;
  }
}