:root{
  --sun:       #FFC65C;
  --foliage:   #3E6B4C;
  --ink:       #000000;
  --ink-soft:  rgba(0,0,0,0.72);
  --hair:      rgba(0,0,0,0.14);
}
*{box-sizing:border-box; margin:0; padding:0;}
body{
  background: #FFFFFF;
  color: var(--ink);
  font-family: 'Zen Kaku Gothic New', sans-serif;
  padding-bottom: 110px;
  position: relative;
  overflow-x: hidden;
}
.num{ font-family:'Outfit', sans-serif; }
a{ color: inherit; }

.sun{ display:none; } /* 白背景では空の演出は不要なので非表示 */
.birds{ display:none; }
.birds span{ position:absolute; font-size: 17px; color: var(--ink); opacity:.5; }

.masthead{
  position:relative; z-index:2;
  display:flex; justify-content:space-between; align-items:baseline;
  max-width: 760px; margin: 0 auto; padding: 28px 24px 16px;
  border-bottom: 1px solid var(--hair);
}

.hero-image{
  position:relative; z-index:2; width:100%; line-height:0;
  background: linear-gradient(180deg, rgba(0,0,0,0.03), rgba(0,0,0,0));
}
.hero-image img{
  width:100%; height:auto; display:block; /* object-fitでトリミングしない。原寸の縦横比のまま全体を見せる */
}
.hero-caption{
  line-height:1.4; padding: 8px 24px 0; font-size:8.05px; letter-spacing:0.02em; color: var(--ink-soft);
  text-align:right;
}
.masthead .site-title{ font-weight:700; font-size: 17px; letter-spacing: 0.1em; color: var(--ink); }
.masthead .crumb{ font-size: 11.5px; letter-spacing: 0.04em; color: var(--ink-soft); }

main{ position:relative; z-index:2; max-width: 760px; margin:0 auto; padding: 0 24px; }

.titleblock{ padding: 36px 0 36px; }
.eyebrow{
  font-size: 14.5px; letter-spacing: 0.18em; color: var(--ink-soft); margin-bottom: 16px;
  display:flex; align-items:center; gap: 8px;
}
h1.slope-name{
  font-weight: 900; font-size: clamp(60px, 12vw, 120px); line-height: 1; letter-spacing: -0.01em;
  color: var(--ink);
}
.reading{ font-size: 15.5px; letter-spacing: 0.2em; color: var(--ink-soft); margin-top: 14px; }
.lede{ margin-top: 24px; font-size: 19px; line-height: 1.95; color: var(--ink-soft); }

.section-heading{ margin-top: 28px; font-size: 20.5px; font-weight:700; letter-spacing: 0.06em; color: var(--foliage); }

.data-card{
  margin-top: 28px; border-radius: 18px; position:relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.55), rgba(255,255,255,0.25));
  border: 1px solid rgba(255,255,255,0.6);
  box-shadow: 0 20px 50px -30px rgba(22,51,80,0.35);
}
.chart-block{
  position:relative;
}
.chart-bg-illustration{
  position:absolute; inset:0; z-index:0; opacity:0.1;
  background-size:cover; background-position:center;
  border-radius: 18px 18px 0 0; pointer-events:none;
}
.chart-inner{ position:relative; z-index:1; }
.chart-head{
  display:flex; justify-content:flex-end; align-items:center; flex-wrap:wrap; gap:8px;
  padding: 16px 22px 0; font-size: 13px; letter-spacing: 0.14em; color: var(--ink-soft);
}
.chart-head .stamp{
  color: var(--foliage); border: 1px solid rgba(62,107,76,0.35); padding: 3px 10px;
  border-radius: 20px; font-size: 12px; letter-spacing:0.08em; background: rgba(62,107,76,0.06);
}
.chart-head .stamp.pending{ color:#9A5B2E; border-color:rgba(154,91,46,0.35); background:rgba(154,91,46,0.06); }
.chart-head .stamp.stair{
  color:#9A5B2E; border-color: rgba(154,91,46,0.35); background: rgba(154,91,46,0.06);
}
#profile-svg{ display:block; width: 100%; height: auto; touch-action: none; }
.chart-footnote{ padding: 6px 22px 20px; font-size: 13px; color: var(--ink-soft); }

.chart-pending{
  padding: 60px 22px 54px; text-align:center; color: var(--ink-soft); font-size: 16px;
}
.chart-pending b{ display:block; color: var(--ink); font-size: 18px; margin-bottom: 8px; }

.route-block{
  position:relative;
  border-top: 1px dashed var(--hair);
}
#live-map{ margin-top: 18px; }
.gmaps-link{
  color: var(--foliage); text-decoration:underline; font-size: 10.5px; white-space:nowrap;
}
#route-svg{ display:block; width:100%; height:auto; }
.route-footnote{ padding: 10px 22px 20px; font-size: 13px; color: var(--ink-soft); }
#live-map{ width:100%; height: 300px; display:block; border-radius: 0 0 18px 18px; overflow:hidden; }
.maplibregl-ctrl-attrib{ font-size: 12px !important; }

#hover-capture{ cursor: crosshair; touch-action: none; }
.chart-tooltip{
  position:absolute; left:0; top:0; pointer-events:none; z-index:6;
  background: var(--ink); color:#fff; padding: 9px 13px; border-radius: 10px;
  font-size: 14.5px; line-height:1.5; white-space:nowrap;
  transform: translate(-50%, calc(-100% - 16px));
  opacity:0; transition: opacity .12s ease;
  box-shadow: 0 10px 24px -10px rgba(22,51,80,0.5);
}
.chart-tooltip.visible{ opacity:1; }
.chart-tooltip .tt-row{ display:flex; justify-content:space-between; gap:14px; }
.chart-tooltip .tt-label{ color: rgba(255,255,255,0.6); font-size: 12.5px; letter-spacing:0.04em; }
.chart-tooltip .tt-value{ font-family:'Outfit', sans-serif; font-weight:600; }
.chart-tooltip::after{
  content:""; position:absolute; left:50%; bottom:-5px; transform:translateX(-50%);
  border-left:5px solid transparent; border-right:5px solid transparent; border-top:5px solid var(--ink);
}

.stat-row{ margin: 18px 22px 4px; }
.stat-featured-row{ display:flex; justify-content:center; gap:56px; }
.stat-featured-item{ text-align:center; }
.stat-featured-item .label{ font-size: 11px; letter-spacing: 0.06em; color: var(--ink-soft); margin-bottom: 6px; white-space:nowrap; }
.stat-featured-item .value{ font-family:'Outfit', sans-serif; font-weight:700; font-size: 38px; color: var(--ink); white-space:nowrap; }
.stat-featured-item .value .unit{ font-size: 15px; color: var(--ink-soft); margin-left: 3px; font-weight:400; }
.stat-secondary-row{
  display:flex; justify-content:center; flex-wrap:wrap; gap: 6px 22px;
  margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--hair);
}
.stat-secondary-item{ font-size: 12.5px; color: var(--ink-soft); font-weight:300; white-space:nowrap; }
.stat-secondary-item b{ font-family:'Outfit', sans-serif; font-weight:500; color: var(--ink); margin-left: 4px; }

.story{ margin-top: 60px; }
.story h2{ font-size: 20.5px; font-weight:700; letter-spacing: 0.06em; color: var(--foliage); margin-bottom: 20px; }
.story p{ font-size: 18.5px; line-height: 2; color: var(--ink-soft); }
.story p + p{ margin-top: 1.2em; }

.source-line{ margin-top: 18px; font-size: 14px; color: var(--ink-soft); border-top: 1px dashed var(--hair); padding-top: 14px; }
.source-line a{ text-decoration: underline; }

.writer-credit{ margin-top: 24px; font-size: 13px; color: var(--ink-soft); text-align: right; font-style: italic; }

.photos{ margin-top: 40px; display:grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
@media (max-width: 560px){ .photos{ grid-template-columns: 1fr; } }
.photo{
  aspect-ratio: 1/1; border-radius: 14px; border: 1px solid var(--hair);
  background:
    repeating-linear-gradient(135deg, #F3F3F3 0 14px, #EAEAEA 14px 28px);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:10px;
  font-size: 13px; color: var(--ink-soft); letter-spacing:0.06em; text-align:center; padding:16px;
  overflow: hidden;
}
.photo svg{ width:34px; height:34px; opacity:0.4; }
.photo img{ width:100%; height:100%; object-fit:cover; display:block; border-radius:13px; }

.tech-note{
  margin-top: 18px; font-size: 12px; line-height:1.7; color: var(--ink-soft);
}

.nav-row{
  margin-top: 66px; padding-top: 22px; border-top: 1px solid var(--hair);
  display:flex; justify-content:space-between; align-items:center; font-size: 15px;
}
.nav-row a{ text-decoration:none; color: var(--ink-soft); transition: color .2s; }
.nav-row a:hover{ color: var(--foliage); }
.nav-row .center{ letter-spacing: 0.04em; }

.site-footer{
  max-width: 760px; margin: 70px auto 0; padding: 28px 24px 40px;
  border-top: 1px solid var(--hair);
  display:flex; flex-direction:column; align-items:center; gap:10px;
  text-align:center;
}
.site-footer img{ opacity:0.85; }
.site-footer .copyright{ font-size: 12px; color: var(--ink-soft); letter-spacing: 0.04em; }

/* ---------- スマホ幅の調整 ---------- */
@media (max-width: 600px){
  .masthead{
    flex-direction: column; align-items:flex-start; gap:8px;
  }
  .masthead .crumb{ text-align:left; }

  /* 強調2項目(距離・急峻度)は大きめのまま横並び、他3項目は下に細字で並べる */
  .stat-featured-row{ gap: 32px; }
  .stat-featured-item .value{ font-size: 28px; }
  .stat-secondary-row{ gap: 4px 14px; font-size: 11px; }
}

/* ---------- 一覧系ページ（TOP・区ページ）共通 ---------- */
.grid{ position:relative; z-index:2; max-width: 760px; margin: 30px auto 0; padding: 0 24px;
  display:grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 900px){ .grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px){ .grid{ grid-template-columns: 1fr; } }
.card{ background: linear-gradient(160deg, rgba(255,255,255,0.6), rgba(255,255,255,0.25));
  border: 1px solid rgba(255,255,255,0.7); border-radius: 16px; padding: 22px 22px 18px;
  display:flex; flex-direction:column; box-shadow: 0 16px 40px -28px rgba(22,51,80,0.4);
  text-decoration:none; }
.card .ward{ font-size: 12.5px; letter-spacing: 0.12em; color: var(--foliage); font-weight:700; }
.card .name{ font-weight:900; font-size: 30px; margin-top: 8px; color: var(--ink); }
.card svg{ width:100%; height: 76px; margin-top: 14px; display:block; }
.card .pending-note{ margin-top: 14px; font-size: 14px; color: var(--ink-soft); }
.counter{ margin-top: 24px; display:flex; gap: 34px; font-size: 14.5px; color: var(--ink-soft); }
.counter div{ display:flex; align-items:baseline; gap: 4px; }
.counter b{ font-size: 14.5px; color: var(--ink); font-weight:400; }

/* ---------- TOPページ：全幅ヒーロー画像 ---------- */
.hero-full{
  position:relative; width:100%; line-height:0; overflow:hidden;
}
.hero-full img{ width:100%; height:auto; display:block; }
@media (max-width: 620px){
  /* スマホのファーストビューは縦長トリミングで迫力を出す（元画像は1774x887=約2:1、
     4:5相当まで左側をトリミング。object-position 33%は東京タワーを画角内に収めつつ
     左端の木立・石垣部分を主に削る位置。PCは元の全幅表示のまま変更しない） */
  .hero-full{ aspect-ratio: 4 / 5; }
  .hero-full img{ width:100%; height:100%; object-fit:cover; object-position: 33% center; }
}
.hero-full::after{
  /* 下部を暗くグラデーションして、白文字の視認性を確保 */
  content:""; position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,0.55) 100%);
}
.hero-title-overlay{
  position:absolute; left:0; right:0; bottom:0; z-index:2;
  padding: 24px 24px 36px; line-height:1;
}
.hero-title-overlay h1{
  font-family:'Zen Kaku Gothic New', sans-serif; font-weight:900;
  font-size: clamp(44px, 9vw, 88px); color:#fff; letter-spacing:0.02em;
  text-shadow: 0 4px 24px rgba(0,0,0,0.35);
  margin:0;
}
.hero-title-overlay .sub{
  margin-top:10px; color:rgba(255,255,255,0.88); font-size:14px; letter-spacing:0.14em;
  text-shadow: 0 2px 10px rgba(0,0,0,0.4);
}
.hero-watermark{
  /* 画像自体に生成AIのウォーターマークが焼き込まれていない場合の代替表示（CSSオーバーレイ） */
  position:absolute; right:14px; bottom:14px; z-index:3;
  font-size:11px; color:rgba(255,255,255,0.75); letter-spacing:0.02em;
  text-shadow: 0 1px 4px rgba(0,0,0,0.5);
  pointer-events:none;
}

/* ---------- 区ページ：坂カード（サムネイル・グラデーション断面図つき） ---------- */
.ward-grid{
  max-width: 760px; margin: 32px auto 0; padding: 0 24px;
  display:grid; grid-template-columns: repeat(2, 1fr); gap: 18px;
}
@media (max-width: 620px){ .ward-grid{ grid-template-columns: 1fr; } }

.slope-card{
  display:block; text-decoration:none; color: var(--ink);
  border-radius: 18px; overflow:hidden; position:relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.55), rgba(255,255,255,0.25));
  border: 1px solid rgba(255,255,255,0.6);
  box-shadow: 0 20px 50px -30px rgba(22,51,80,0.35);
  transition: transform .18s ease, box-shadow .18s ease;
}
.slope-card:hover{ transform: translateY(-3px); box-shadow: 0 26px 60px -30px rgba(22,51,80,0.45); }
.slope-card .thumb{
  width:100%; aspect-ratio: 16/10; object-fit:cover; display:block; background:#EEE;
}
.slope-card .thumb-placeholder{
  width:100%; aspect-ratio:16/10; display:flex; align-items:center; justify-content:center;
  background: repeating-linear-gradient(135deg, #F3F3F3 0 14px, #EAEAEA 14px 28px);
  color: var(--ink-soft); font-size:12px; gap:8px;
}
.slope-card .body{ padding: 16px 18px 18px; }
.slope-card .ward-tag{ font-size:11.5px; letter-spacing:0.1em; color: var(--foliage); font-weight:700; }
.slope-card .name{ font-weight:900; font-size:24px; margin-top:4px; }
.slope-card .mini-chart{ width:100%; height:56px; margin-top:10px; display:block; }
.slope-card .stats-line{
  margin-top:10px; display:flex; justify-content:space-between; font-size:11.5px; color: var(--ink-soft);
}
.slope-card .stats-line .badge{ color: var(--ink); font-weight:600; }

.slope-card.pending .body{ padding: 20px 18px 22px; }
.slope-card.pending .name{ color: var(--ink-soft); }
.slope-card.pending .status{ margin-top:8px; font-size:12px; color:#9A5B2E; }