:root {
  --color-bg: #ffffff;
  --color-text: #222831;
  --color-sub: #6b7280;
  --color-border: #e5e7eb;
  --color-primary: #0d8fbb;
  --color-primary-dark: #086b8c;
  --color-surface: #f7fafc;
  --color-ok-bg: #e4f7ec;
  --color-ok-text: #1a8a4a;
  --color-caution-bg: #fdf3dd;
  --color-caution-text: #b8790c;
  --color-ban-bg: #fbe6e6;
  --color-ban-text: #c2373a;
  --radius: 12px;
  --max-width: 480px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Hiragino Sans", "Yu Gothic UI", "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img, svg {
  max-width: 100%;
  display: block;
}

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  min-height: 100vh;
  background: var(--color-bg);
  position: relative;
}

/* ヘッダー */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-primary);
  color: #fff;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-header h1 {
  font-size: 16px;
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.site-header .icon {
  font-size: 20px;
}

.back-link {
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #fff;
  opacity: 0.95;
}

/* フィルタタブ */
.filter-bar {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  overflow-x: auto;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.filter-bar-pref {
  padding-top: 0;
  padding-bottom: 10px;
}

.filter-bar-pref .filter-chip {
  padding: 5px 12px;
  font-size: 12px;
}

.filter-bar-pref .filter-chip.active {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.filter-chip {
  flex: none;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: #fff;
  font-size: 13px;
  color: var(--color-sub);
  cursor: pointer;
  white-space: nowrap;
}

.filter-chip.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  font-weight: 700;
}

/* 一覧カード */
.beach-list {
  padding: 14px 16px 40px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.beach-card {
  display: block;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.beach-card .thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
}

.beach-card .body {
  padding: 12px 14px 14px;
}

.beach-card .area {
  font-size: 12px;
  color: var(--color-sub);
}

.beach-card .name {
  font-size: 16px;
  font-weight: 700;
  margin: 2px 0 8px;
}

.beach-card .meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.beach-card .meta-sub {
  font-size: 12px;
  color: var(--color-sub);
}

/* ステータスバッジ */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.status-ok {
  background: var(--color-ok-bg);
  color: var(--color-ok-text);
}

.status-caution {
  background: var(--color-caution-bg);
  color: var(--color-caution-text);
}

.status-ban {
  background: var(--color-ban-bg);
  color: var(--color-ban-text);
}

/* プレースホルダー画像(SVG生成) */
.thumb svg,
.hero svg,
.media-frame svg,
.photo svg {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

/* 詳細ページ */
.hero {
  width: 100%;
  aspect-ratio: 16 / 10;
  position: relative;
}

.hero .status-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 13px;
  padding: 6px 12px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

.detail-body {
  padding: 16px 16px 48px;
}

.detail-area {
  font-size: 12px;
  color: var(--color-sub);
}

.detail-name {
  font-size: 21px;
  font-weight: 700;
  margin: 2px 0 4px;
}

.detail-address {
  font-size: 13px;
  color: var(--color-sub);
  margin-bottom: 14px;
}

.note-box {
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 13px;
  margin-bottom: 18px;
  line-height: 1.7;
}

.note-ok {
  background: var(--color-ok-bg);
  color: #1c6b41;
}

.note-caution {
  background: var(--color-caution-bg);
  color: #8a5c09;
}

.note-ban {
  background: var(--color-ban-bg);
  color: #9c2b2e;
}

/* セクション見出し */
.section {
  margin-bottom: 22px;
}

.section-title {
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 10px;
  color: var(--color-text);
}

/* データグリッド（気象・潮位など） */
.data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.data-tile {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 10px 12px;
}

.data-tile .label {
  font-size: 11px;
  color: var(--color-sub);
  margin-bottom: 4px;
}

.data-tile .value {
  font-size: 15px;
  font-weight: 700;
}

.data-tile .value .unit {
  font-size: 12px;
  font-weight: 400;
  color: var(--color-sub);
}

/* 基本情報リスト */
.info-list {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.info-row {
  display: flex;
  padding: 11px 14px;
  font-size: 13px;
  border-bottom: 1px solid var(--color-border);
  gap: 12px;
}

.info-row:last-child {
  border-bottom: none;
}

.info-row .k {
  flex: none;
  width: 88px;
  color: var(--color-sub);
}

.info-row .v {
  flex: 1;
}

/* 観光スポット */
.spot-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spot-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--color-surface);
  border-radius: 10px;
  font-size: 13px;
}

/* マップ */
.map-frame {
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.map-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* メディア（ライブカメラ・写真・動画） */
.media-block {
  margin-bottom: 12px;
}

.media-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

.live-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: #e23c3c;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.live-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: blink 1.4s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

.play-badge {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.play-badge .circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.media-caption {
  font-size: 12px;
  color: var(--color-sub);
  margin-top: 6px;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.photo-grid .photo {
  aspect-ratio: 1 / 1;
  border-radius: 8px;
  overflow: hidden;
}

/* 問い合わせ */
.contact-box {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px;
  font-size: 13px;
}

.contact-box .name {
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-box .tel {
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 15px;
}

/* フッター */
.site-footer {
  padding: 20px 16px 32px;
  text-align: center;
  font-size: 11px;
  color: var(--color-sub);
  border-top: 1px solid var(--color-border);
}

.proto-note {
  background: #fff8e6;
  color: #8a6d00;
  font-size: 11px;
  text-align: center;
  padding: 6px 10px;
}

/* ---------- トップページ ---------- */
.home-section {
  padding: 20px 16px 6px;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
}

.section-link {
  font-size: 12px;
  font-weight: 400;
  color: var(--color-primary-dark);
}

.favorite-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.favorite-card .body {
  padding: 10px 10px 12px;
}

.favorite-card .name {
  font-size: 14px;
}

.pickup-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: #ffb020;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  letter-spacing: 0.03em;
}

.favorite-card .thumb {
  position: relative;
}

.region-group {
  margin-bottom: 14px;
}

.region-label {
  font-size: 12px;
  color: var(--color-sub);
  margin-bottom: 6px;
  font-weight: 700;
}

.area-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.area-chip {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
}

.article-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-bottom: 10px;
}

.article-card {
  display: flex;
  gap: 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}

.article-thumb {
  flex: none;
  width: 96px;
  aspect-ratio: 1 / 1;
}

.article-thumb svg {
  width: 100%;
  height: 100%;
  display: block;
}

.article-card-body {
  padding: 10px 12px 10px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  min-width: 0;
}

.article-category {
  font-size: 11px;
  color: var(--color-primary-dark);
  font-weight: 700;
}

.article-title {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.article-summary {
  font-size: 12px;
  color: var(--color-sub);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 記事ページ ---------- */
.article-hero {
  aspect-ratio: 16 / 9;
}

.article-body h2 {
  font-size: 16px;
  margin: 22px 0 10px;
}

.article-body h2:first-child {
  margin-top: 0;
}

.article-body p {
  font-size: 14px;
  margin: 0 0 12px;
  color: var(--color-text);
}

.article-body ul {
  margin: 0 0 12px;
  padding-left: 20px;
  font-size: 14px;
}

.article-body li {
  margin-bottom: 4px;
}

.empty-state {
  padding: 60px 20px;
  text-align: center;
  color: var(--color-sub);
  font-size: 13px;
}