/* ガソリン価格ラボ 共通スタイル */
:root {
  --primary: #c05a24;      /* 燃料をイメージした温かみのあるオレンジ */
  --primary-dark: #8f3f16;
  --accent: #1f6f5c;
  --bg: #faf8f5;
  --card-bg: #ffffff;
  --text: #2b2620;
  --muted: #7a7a70;
  --border: #e6e1d8;
  --pos: #1a7f4b;          /* 値下がり=消費者に良い=緑 */
  --neg: #b3392f;          /* 値上がり=赤 */
  --flat: #7a7a70;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
}
a { color: var(--primary); }
.container { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

/* header */
.site-header { background: var(--primary-dark); color: #fff; padding: 14px 0; }
.site-logo { font-size: 1.4rem; font-weight: 700; color: #fff; text-decoration: none; }
.site-tagline { margin: 2px 0 8px; font-size: 0.8rem; color: #f4d9c8; }
.global-nav a {
  color: #fff; text-decoration: none; margin-right: 14px; font-size: 0.95rem;
  border-bottom: 2px solid transparent; padding-bottom: 2px;
}
.global-nav a:hover { border-bottom-color: #ffcf9e; }

/* breadcrumb */
.breadcrumb { font-size: 0.8rem; color: var(--muted); padding: 10px 16px; }
.breadcrumb a { color: var(--muted); }

main { padding: 12px 16px 48px; }
h1 { font-size: 1.5rem; line-height: 1.4; border-left: 5px solid var(--primary); padding-left: 12px; }
h2 { font-size: 1.2rem; border-bottom: 2px solid var(--border); padding-bottom: 6px; margin-top: 2.2em; }
h3 { font-size: 1.05rem; margin-top: 1.4em; }
.lead { color: var(--text); }
.note { font-size: 0.82rem; color: var(--muted); }
.empty-note { background: #fff5e9; border: 1px solid #f0d8b6; padding: 12px 16px; border-radius: 8px; }

/* hero */
.hero { background: linear-gradient(120deg, #c05a24, #8f3f16); color: #fff; padding: 28px 24px; border-radius: 12px; margin-top: 16px; }
.hero h1 { color: #fff; border: none; padding-left: 0; margin-top: 0; }
.hero-lead { color: #fdeee2; }
.hero .update-time { color: #ffe0b0; font-weight: 600; }

/* quick answer */
.quick-answer { background: #fff; border: 2px solid var(--primary); border-radius: 12px; padding: 8px 20px 16px; margin-top: 22px; }
.quick-text { font-size: 1.1rem; font-weight: 600; }

/* national price cards */
.price-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.price-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 14px; }
.pc-name { font-size: 0.85rem; color: var(--muted); }
.pc-value { font-size: 1.25rem; font-weight: 700; color: var(--primary-dark); margin: 4px 0; }
.pc-change { font-size: 0.82rem; }
.pc-fwd { font-size: 0.85rem; font-weight: 600; margin-top: 4px; }

/* summary cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 16px; }
.card-main { border: 2px solid var(--primary); }
.card-label { font-size: 0.82rem; color: var(--muted); }
.card-value { font-size: 2rem; font-weight: 700; color: var(--primary); }
.card-sub { font-size: 0.82rem; color: var(--muted); }

/* tables */
.data-table { width: 100%; border-collapse: collapse; background: var(--card-bg); font-size: 0.9rem; }
.data-table th, .data-table td { border: 1px solid var(--border); padding: 7px 9px; text-align: left; vertical-align: top; }
.data-table thead th { background: #f3ece2; font-weight: 600; }
.data-table .honmei { font-weight: 700; color: var(--primary-dark); }
.stats-table th { width: 22%; background: #f3ece2; }
.row-hit { background: #eef8f1; }
.row-miss { background: #fdf1ef; }
.mark { font-weight: 700; }
.row-hit .mark { color: var(--pos); }
.row-miss .mark { color: var(--neg); }
.pos { color: var(--pos); font-weight: 600; }
.neg { color: var(--neg); font-weight: 600; }
.reasons { font-size: 0.85rem; color: var(--muted); }
.pref-reason { margin: 4px 0; }

/* direction colors */
.dir-up { color: var(--neg); font-weight: 700; }
.dir-down { color: var(--pos); font-weight: 700; }
.dir-flat { color: var(--flat); font-weight: 700; }
.jp-forecast { font-size: 1rem; background: #fff; border: 1px solid var(--border); border-radius: 8px; padding: 8px 14px; }

/* region cards */
.region-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.region-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 9px; padding: 10px 12px; }
.rc-head { display: flex; justify-content: space-between; align-items: center; }
.rc-name { font-weight: 700; text-decoration: none; }
.rc-price { font-size: 1.1rem; font-weight: 700; color: var(--primary-dark); margin-top: 4px; }
.rc-unit { font-size: 0.72rem; color: var(--muted); font-weight: 400; margin-left: 2px; }
.rc-dir { font-size: 0.8rem; margin-left: 6px; }

/* fuel cards */
.fuel-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.fuel-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 16px; text-decoration: none; color: var(--text); display: block; }
.fuel-card:hover { border-color: var(--primary); }
.fc-name { font-weight: 700; font-size: 1.1rem; color: var(--primary-dark); }
.fc-price { font-size: 1.3rem; font-weight: 700; margin: 6px 0; }
.fc-unit { font-size: 0.72rem; color: var(--muted); font-weight: 400; margin-left: 3px; }
.fc-intro { font-size: 0.82rem; color: var(--muted); margin: 0; }
.big-price { font-size: 1.8rem; font-weight: 700; color: var(--primary-dark); }

/* buttons */
.btn { display: inline-block; background: var(--primary); color: #fff; text-decoration: none; padding: 9px 18px; border-radius: 8px; font-weight: 600; margin-top: 10px; }
.btn:hover { background: var(--primary-dark); }
.fav-btn { background: none; border: 1px solid var(--border); border-radius: 6px; cursor: pointer; font-size: 1rem; padding: 1px 7px; color: var(--muted); }
.fav-btn.active { color: #e0a107; border-color: #e0a107; }
.fav-btn-large { font-size: 0.85rem; padding: 5px 12px; margin-left: 8px; }
.track-btn { background: #fff; border: 1px solid var(--primary); color: var(--primary); border-radius: 6px; padding: 4px 8px; cursor: pointer; font-size: 0.76rem; white-space: nowrap; }
.track-btn.tracked { background: var(--primary); color: #fff; }
.small-link { font-size: 0.82rem; background: none; border: none; color: var(--primary); cursor: pointer; text-decoration: underline; padding: 0; }

/* jump nav */
.jump-nav { margin: 14px 0; font-size: 0.9rem; }
.jump-nav a { margin-right: 10px; }

/* chart */
.chart-section svg { width: 100%; height: auto; background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; }

/* columns */
.column-list { list-style: none; padding: 0; }
.column-list li { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 14px 18px; margin-bottom: 12px; }
.column-title { font-weight: 700; font-size: 1.05rem; }
.column-desc { font-size: 0.85rem; color: var(--muted); margin: 6px 0 0; }
.column-article { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 10px 26px 26px; }
.column-article h2 { margin-top: 1.8em; }
.article-meta { font-size: 0.8rem; color: var(--muted); }
.column-nav { margin-top: 18px; }

/* static pages */
.static-page { background: var(--card-bg); border: 1px solid var(--border); border-radius: 10px; padding: 10px 26px 26px; }

/* honest edge-status disclosure */
.edge-status { border-radius: 10px; padding: 4px 20px 16px; margin-top: 22px; }
.edge-honest { background: #fff5e9; border: 1px solid #f0d8b6; }
.edge-good { background: #eef8f1; border: 1px solid #b8e0c6; }

/* misc */
.disclaimer-block { background: #f5f1ea; border-radius: 10px; padding: 4px 18px 14px; margin-top: 30px; font-size: 0.85rem; color: var(--muted); }
.my-regions { background: #fff5e9; border: 1px solid #f0d8b6; border-radius: 10px; padding: 8px 18px 18px; margin-top: 20px; }
.update-time { font-weight: 600; }

/* footer */
.site-footer { background: var(--primary-dark); color: #f4d9c8; padding: 26px 0; font-size: 0.8rem; margin-top: 40px; }
.site-footer a { color: #f4d9c8; margin-right: 14px; }
.footer-nav { margin: 10px 0; }
.attribution { font-weight: 600; }
.update-notice { color: #ffe0b0; }

/* responsive */
@media (max-width: 640px) {
  .data-table { font-size: 0.8rem; }
  .data-table th, .data-table td { padding: 5px 6px; }
  h1 { font-size: 1.25rem; }
}