/* ランディングページ — 測量図の意匠 */

.wrap { width: min(1120px, 100% - 48px); margin-inline: auto; }
section { position: relative; }

/* ─────────── ヘッダー ─────────── */
.site-head {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 241, 233, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.site-head .wrap { display: flex; align-items: center; gap: 20px; height: 62px; }
.brand { display: flex; align-items: baseline; gap: 9px; text-decoration: none; color: inherit; }
.brand .logo { font-family: var(--font-display); font-size: 19px; font-weight: 700; letter-spacing: 0.08em; }
.brand .logo em { font-style: normal; color: var(--vermilion); }
.brand .sub { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.2em; color: var(--ink-4); }
.site-nav { margin-left: auto; display: flex; align-items: center; gap: 22px; }
.site-nav a { font-size: 13px; color: var(--ink-2); text-decoration: none; }
.site-nav a:hover { color: var(--vermilion); }
.site-nav .btn { font-size: 13px; padding: 9px 16px; }
@media (max-width: 760px) { .site-nav a:not(.btn) { display: none; } }

/* ─────────── ヒーロー ─────────── */
.hero { padding: clamp(48px, 8vw, 104px) 0 clamp(40px, 6vw, 80px); overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.hero h1 {
  font-size: clamp(34px, 5.4vw, 62px);
  line-height: 1.28;
  letter-spacing: 0.01em;
  margin: 16px 0 0;
}
.hero h1 .accent {
  color: var(--vermilion);
  position: relative;
  white-space: nowrap;
}
.hero h1 .accent::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0.08em;
  height: 2px;
  background: var(--vermilion);
  transform: scaleX(0);
  transform-origin: left;
  animation: rule-in 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.7s forwards;
}
@keyframes rule-in { to { transform: scaleX(1); } }
.hero .lede { font-size: 15.5px; line-height: 2; color: var(--ink-2); margin: 22px 0 0; max-width: 34em; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero .cta .btn { padding: 14px 26px; font-size: 15px; }
.hero .fineprint { font-family: var(--font-mono); font-size: 11px; color: var(--ink-4); margin-top: 16px; letter-spacing: 0.04em; }

/* ヒーローの図版 (SVG) */
.plan { position: relative; }
.plan svg { width: 100%; height: auto; display: block; }
.plan .caption {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--ink-4);
  text-align: right;
  margin-top: 10px;
}
.ring { stroke-dasharray: 4 6; opacity: 0; animation: fade-in 0.8s ease forwards; }
.dot { opacity: 0; animation: pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards; }
@keyframes fade-in { to { opacity: 1; } }
@keyframes pop { from { opacity: 0; transform: scale(0.2); } to { opacity: 1; transform: scale(1); } }

/* 入場アニメーション。JS が動いたときだけ隠す (失敗しても本文が消えないように) */
.js-anim .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.js-anim .reveal.in { opacity: 1; transform: none; }

/* ─────────── 帯状の数値 ─────────── */
.figures { border-block: 1px solid var(--rule-strong); background: var(--panel); }
.figures .wrap { display: grid; grid-template-columns: repeat(4, 1fr); }
.figures .fig { padding: 26px 20px; border-left: 1px solid var(--rule-soft); }
.figures .fig:first-child { border-left: 0; padding-left: 0; }
.figures .n { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: clamp(26px, 3.4vw, 38px); font-weight: 500; line-height: 1.1; }
.figures .n small { font-size: 0.42em; margin-left: 0.35em; color: var(--ink-3); letter-spacing: 0.06em; }
.figures .l { font-size: 12px; color: var(--ink-3); margin-top: 7px; }
@media (max-width: 760px) {
  .figures .wrap { grid-template-columns: repeat(2, 1fr); }
  .figures .fig { padding: 18px 14px; border-top: 1px solid var(--rule-soft); }
  .figures .fig:nth-child(-n+2) { border-top: 0; }
  .figures .fig:nth-child(odd) { border-left: 0; padding-left: 0; }
}

/* ─────────── 共通セクション ─────────── */
.band { padding: clamp(56px, 8vw, 108px) 0; }
.band-alt { background: var(--panel); border-block: 1px solid var(--rule); }
.sec-head { display: grid; grid-template-columns: 88px 1fr; gap: 20px; margin-bottom: clamp(28px, 4vw, 52px); }
.sec-head .no { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.16em; color: var(--vermilion); padding-top: 10px; border-top: 2px solid var(--vermilion); }
.sec-head h2 { font-size: clamp(24px, 3.2vw, 36px); }
.sec-head p { font-size: 14.5px; line-height: 1.95; color: var(--ink-2); margin: 14px 0 0; max-width: 46em; }
@media (max-width: 620px) { .sec-head { grid-template-columns: 1fr; gap: 12px; } .sec-head .no { width: 88px; } }

/* 課題 */
.pains { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.pains .pain { background: var(--paper); padding: 26px 24px; }
.pains h3 { font-size: 17px; margin-bottom: 10px; }
.pains p { font-size: 13.5px; line-height: 1.9; color: var(--ink-2); margin: 0; }
.pains .q { font-family: var(--font-display); font-size: 30px; color: var(--vermilion); line-height: 1; display: block; margin-bottom: 12px; }
@media (max-width: 860px) { .pains { grid-template-columns: 1fr; } }

/* 手順 */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 3vw, 40px); }
.steps .step { position: relative; padding-top: 22px; border-top: 1px solid var(--rule-strong); }
.steps .step .no { position: absolute; top: -11px; left: 0; background: var(--paper); padding-right: 10px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; color: var(--ink-4); }
.band-alt .steps .step .no { background: var(--panel); }
.steps h3 { font-size: 18px; margin-bottom: 10px; }
.steps p { font-size: 13.5px; line-height: 1.95; color: var(--ink-2); margin: 0; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }

/* 出力見本 */
.sample { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(20px, 3vw, 36px); align-items: start; }
@media (max-width: 900px) { .sample { grid-template-columns: 1fr; } }
.card-demo {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--cat-rail_station);
  border-radius: 2px;
  padding: 16px 18px;
}
.card-demo + .card-demo { margin-top: 10px; }
.card-demo.c2 { border-left-color: var(--cat-redevelopment); }
.card-demo.c3 { border-left-color: var(--cat-public_facility); }
.card-demo .t { font-size: 15px; font-weight: 700; line-height: 1.5; }
.card-demo .m { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: 11px; color: var(--ink-3); margin-top: 5px; }
.card-demo .m .sep { color: var(--rule-strong); margin: 0 5px; }
.card-demo .d { font-size: 13px; line-height: 1.8; color: var(--ink-2); margin-top: 8px; }
.card-demo .s { font-family: var(--font-mono); font-size: 10.5px; color: var(--ink-4); margin-top: 8px; }
.tag { display: inline-block; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; padding: 2px 6px; border-radius: 1px; color: #fff; vertical-align: 1px; margin-right: 6px; }

.brief { background: var(--paper); border: 1px solid var(--rule); border-radius: 2px; padding: 20px 22px; }
.brief h4 { font-family: var(--font-display); font-size: 15px; border-bottom: 1px solid var(--rule-soft); padding-bottom: 7px; margin-bottom: 10px; }
.brief ul { margin: 0; padding-left: 17px; font-size: 13px; line-height: 1.9; color: var(--ink-2); }
.brief li { margin-bottom: 6px; }
.brief .verdict { margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--rule); font-size: 13px; line-height: 1.9; color: var(--ink); }

/* 料金 */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.plans .plan-card { background: var(--paper); padding: 30px 26px; display: flex; flex-direction: column; }
.plans .plan-card.featured { background: var(--panel); box-shadow: inset 0 3px 0 var(--vermilion); }
.plans .name { font-family: var(--font-display); font-size: 19px; }
.plans .note { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.1em; color: var(--ink-4); margin-top: 4px; }
.plans .price { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: 34px; font-weight: 500; margin: 18px 0 2px; letter-spacing: -0.01em; }
.plans .price small { font-size: 0.38em; color: var(--ink-3); margin-left: 0.3em; letter-spacing: 0.06em; }
.plans ul { list-style: none; margin: 20px 0 24px; padding: 0; font-size: 13px; line-height: 1.9; color: var(--ink-2); }
.plans li { padding-left: 20px; position: relative; margin-bottom: 5px; }
.plans li::before { content: "＋"; position: absolute; left: 0; color: var(--vermilion); font-size: 11px; top: 0.35em; }
.plans li.off { color: var(--ink-4); }
.plans li.off::before { content: "−"; color: var(--rule-strong); }
.plans .btn { margin-top: auto; justify-content: center; }
@media (max-width: 900px) { .plans { grid-template-columns: 1fr; } }

/* FAQ */
.faq { border-top: 1px solid var(--rule); }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 20px 4px; cursor: pointer; list-style: none;
  font-size: 15.5px; font-weight: 500; line-height: 1.6;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "Q"; font-family: var(--font-mono); font-size: 12px; color: var(--vermilion); padding-top: 4px; }
.faq summary::after { content: "＋"; margin-left: auto; color: var(--ink-4); transition: transform 0.24s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .a { padding: 0 4px 22px 28px; font-size: 13.5px; line-height: 2; color: var(--ink-2); margin: 0; }

/* 末尾のCTA */
.closing { text-align: center; padding: clamp(60px, 9vw, 116px) 0; border-top: 1px solid var(--rule); }
.closing h2 { font-size: clamp(26px, 4vw, 42px); line-height: 1.4; }
.closing p { font-size: 14.5px; color: var(--ink-2); margin: 18px 0 28px; }
.closing .btn { padding: 15px 32px; font-size: 15px; }

/* フッター */
.site-foot { border-top: 1px solid var(--rule-strong); background: var(--panel); padding: 34px 0 44px; }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 20px 40px; align-items: flex-start; }
.site-foot .note { font-size: 11.5px; line-height: 1.9; color: var(--ink-4); max-width: 52em; }
.site-foot .links { margin-left: auto; display: flex; gap: 18px; font-size: 12px; }
.plan-msg {
  max-width: 620px;
  margin: 22px auto 0;
  padding: 11px 14px;
  background: var(--vermilion-wash);
  border-left: 3px solid var(--vermilion);
  border-radius: 2px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--vermilion-dim);
  text-align: left;
}
.plan-msg[hidden] { display: none; }

.site-foot .links a { color: var(--ink-3); text-decoration: none; }
.site-foot .links a:hover { color: var(--vermilion); }

@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .plan { order: -1; max-width: 460px; }
  .wrap { width: min(1120px, 100% - 32px); }
}