:root {
  --text: #202124;
  --text-secondary: #5f6368;
  --border: #dadce0;
  --surface: #f8f9fa;
  --blue: #1a73e8;
  --red: #ea4335;
  --yellow: #f9ab00;
  --green: #34a853;
  --gray: #9aa0a6;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: #fff;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  font-family: var(--font-mono);
}

/* 住所の各パーツの色。分解表示・level・属性一覧で共有する。 */
.part-prefecture { --part: var(--blue); }
.part-city { --part: var(--red); }
.part-town { --part: var(--yellow); }
.part-addr { --part: var(--green); }
.part-other,
.part-point { --part: var(--gray); }

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1040px;
  margin: 0 auto;
  padding: 16px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 500;
}

.brand:hover {
  text-decoration: none;
}

.header-link {
  color: var(--text-secondary);
  font-size: 14px;
}

.main {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 0 40px;
  text-align: center;
}

.hero h1 {
  margin: 0 0 16px;
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 500;
  line-height: 1.3;
}

.hero p {
  margin: 0;
  color: var(--text-secondary);
}

.search {
  display: flex;
  gap: 8px;
  margin-top: 32px;
  padding: 6px 6px 6px 24px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  transition: box-shadow 0.15s, border-color 0.15s;
}

.search:focus-within {
  border-color: transparent;
  box-shadow: 0 1px 6px rgb(32 33 36 / 28%);
}

.search input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
}

.search button {
  padding: 8px 24px;
  border: 0;
  border-radius: 999px;
  background: var(--blue);
  color: #fff;
  font: inherit;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
}

.search button:hover:not(:disabled) {
  background: #1765cc;
}

.search button:disabled {
  background: var(--border);
  cursor: default;
}

.samples {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.sample {
  padding: 4px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: var(--text);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

.sample:hover:not(:disabled) {
  background: var(--surface);
}

.sample:disabled {
  color: var(--gray);
  cursor: default;
}

.search button:focus-visible,
.sample:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.hero .status {
  min-height: 1.7em;
  margin-top: 20px;
  font-size: 14px;
}

.hero .status.is-error {
  color: var(--red);
}

.result {
  padding-bottom: 64px;
}

.breakdown {
  padding: 32px 0 40px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.parts {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.part {
  display: flex;
  flex-direction: column;
}

.part-text {
  padding: 0 4px 6px;
  border-bottom: 3px solid var(--part);
  font-size: clamp(20px, 3.6vw, 30px);
  line-height: 1.4;
}

.part-label {
  margin-top: 6px;
  color: var(--text-secondary);
  font-size: 12px;
}

.level {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px 10px;
  margin: 28px 0 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.level code {
  color: var(--text);
}

.level-steps {
  display: inline-flex;
  gap: 4px;
}

.level-step {
  width: 20px;
  height: 4px;
  border-radius: 2px;
  background: var(--border);
}

.level-step.is-on {
  background: var(--part);
}

.detail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.group + .group {
  margin-top: 24px;
}

.group-label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 500;
}

.group-label::before {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--part);
  content: "";
}

.attribute-list {
  margin: 0;
}

.attribute {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 6px 0;
  border-bottom: 1px solid #eceff1;
  font-size: 14px;
}

.attribute dt {
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 13px;
  white-space: nowrap;
}

.attribute dd {
  margin: 0;
  text-align: right;
  overflow-wrap: anywhere;
}

.attribute dd.is-nil {
  color: var(--gray);
  font-family: var(--font-mono);
  font-size: 13px;
}

.map-wrapper {
  position: sticky;
  top: 24px;
}

.map,
.map-empty {
  height: 440px;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.map {
  /* Leaflet の z-index をこの要素の中に閉じ込める。 */
  isolation: isolate;
}

.map-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 14px;
}

.map-empty[hidden] {
  display: none;
}

.pin::before {
  display: block;
  width: 28px;
  height: 28px;
  border: 3px solid #fff;
  border-radius: 50% 50% 50% 0;
  background: var(--red);
  box-shadow: 0 1px 4px rgb(32 33 36 / 40%);
  transform: rotate(-45deg) scale(0.8);
  transform-origin: 50% 100%;
  content: "";
}

.footer {
  padding: 32px 24px 48px;
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 13px;
  text-align: center;
}

.footer p {
  max-width: 680px;
  margin: 0 auto 8px;
}

.versions {
  font-family: var(--font-mono);
  font-size: 12px;
}

@media (max-width: 760px) {
  .hero {
    padding: 24px 0 32px;
  }

  .search {
    padding-left: 18px;
  }

  .search button {
    padding: 8px 18px;
  }

  .detail {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .map-wrapper {
    position: static;
    order: -1;
  }

  .map,
  .map-empty {
    height: 280px;
  }
}