:root {
  --deep: #0e3b2c;      /* 濃い緑 */
  --deeper: #082619;
  --bright: #4be08a;    /* 明るい緑 */
  --bright-soft: #c9f5d9;
  --paper: #f5f8f4;
  --card: #ffffff;
  --ink: #12261d;
  --muted: #5d7267;
  --line: #dbe6dd;
  --warn: #a8321f;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", "Noto Sans JP", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 60px; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--paper); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* 上の帯 */
header { background: var(--deep); color: #fff; position: sticky; top: 0; z-index: 10; }
header .wrap { display: flex; align-items: center; gap: 28px; height: 60px; }
/* ロゴは画像（Inter の太字、文字間 0.06em を形にしたもの）。文字で 22px のときと同じ大きさ */
.logo { display: flex; }
.logo img { display: block; height: 17.25px; width: auto; }

/* いちばん上 */
/* 背景は上の帯と同じ1色にする（だんだん濃くすると、スクロールしたときに帯と色がずれる） */
.hero { background: var(--deep); color: #fff; padding: 84px 0 96px; overflow: hidden; }
.hero-top { margin-bottom: 40px; }
.hero-top p { color: rgba(255,255,255,0.78); font-size: 17px; margin: 0; max-width: 34em; }
h1 { font-size: clamp(30px, 4.4vw, 48px); line-height: 1.25; margin: 0 0 18px; letter-spacing: -0.01em; }
h1 em { font-style: normal; color: var(--bright); }

/* 目次。ラインごとに箱を1つ。箱が1つなら横いっぱい、増えると横に並ぶ（スマホでは縦） */
.lines { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 20px; }
.line-card { background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.12); border-radius: 20px; padding: 26px; display: flex; flex-direction: column; align-items: flex-start; }
.line-name { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; color: var(--bright); }
.copy { font-size: clamp(24px, 3vw, 32px); line-height: 1.3; margin: 6px 0 4px; }
.line-card p { color: rgba(255,255,255,0.72); font-size: 15px; margin: 0; }
.line-list { list-style: none; align-self: stretch; margin: 22px 0 0; padding: 0; }
.line-list li { border-top: 1px solid rgba(255,255,255,0.14); }
.line-list a { display: flex; align-items: baseline; gap: 2px 14px; flex-wrap: wrap; padding: 15px 0; }
.line-list i { font-style: normal; color: var(--bright); margin-left: auto; }
.line-list a:hover b, .line-list a:focus-visible b { color: var(--bright); }
.line-list li:last-child { border-bottom: 1px solid rgba(255,255,255,0.14); }
.line-list b { font-size: 17px; min-width: 6em; }
.line-list span { color: rgba(255,255,255,0.72); font-size: 14.5px; }

/* タイムラインの絵 */
.tlp { border: 1px solid rgba(255,255,255,0.12); border-radius: 18px; padding: 22px; display: flex; flex-direction: column; gap: 11px; font-size: 13.5px; color: rgba(255,255,255,0.88); }
.tlp-title { font-family: var(--mono); font-size: 12px; color: rgba(255,255,255,0.55); display: flex; justify-content: space-between; margin-bottom: 3px; }
.tlp span { font-family: var(--mono); font-size: 12px; color: rgba(255,255,255,0.55); margin-right: 10px; }
.tlp-title span { margin: 0; }
.tlp u { text-decoration: none; color: var(--bright); }
.tlp b { font-family: var(--mono); font-weight: 600; font-size: 10.5px; color: var(--deeper); background: var(--bright); border-radius: 4px; padding: 1px 5px; margin-right: 8px; }
.tlp .re { margin-left: 18px; padding-left: 12px; border-left: 2px solid rgba(255,255,255,0.2); }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* 製品の欄（どの製品にも共通する部品） */
.product { padding: 76px 0; }
.head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 8px; flex-wrap: wrap; }
.num { font-family: var(--mono); color: var(--bright); background: var(--deep); border-radius: 6px; padding: 2px 9px; font-size: 13px; }
h2 { font-size: 30px; margin: 0; letter-spacing: -0.01em; }
h2 small { font-weight: 400; color: var(--muted); font-size: 14px; margin-left: 10px; }
.lead { color: var(--muted); margin: 0 0 34px; max-width: 40em; }
.grid { display: grid; gap: 18px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 24px; }
.card h3 { margin: 0 0 4px; font-size: 20px; }
.card p { margin: 6px 0 0; color: var(--muted); font-size: 14.5px; }
.tag { display: inline-block; font-size: 11.5px; font-weight: 700; border-radius: 999px; padding: 2px 10px; background: var(--bright-soft); color: var(--deep); }
.card .price-main { margin: 14px 0 0; display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 13px; line-height: 1.5; }
.card .price-main b { font-size: 40px; line-height: 1; letter-spacing: -0.01em; color: var(--ink); }
.soon { display: block; margin-top: 18px; padding: 11px 20px; border-radius: 999px; background: var(--paper); border: 1px solid var(--line); color: var(--muted); font-size: 15px; font-weight: 700; text-align: center; }
.card .price-note { margin: 14px 0 0; font-size: 12.5px; }
.card .price-note + .price-note { margin-top: 4px; }
.card .feats { list-style: none; margin: 22px 0 0; padding: 18px 0 0; border-top: 1px solid var(--line); font-size: 14.5px; }
.card .feats li { position: relative; padding: 3px 0 3px 26px; }
.card .feats li::before { content: "✓"; position: absolute; left: 2px; color: #1f8a52; font-weight: 700; }
.more { display: inline-block; margin-top: 16px; font-weight: 700; color: var(--deep); font-size: 14px; border-bottom: 2px solid var(--bright); }

/* 紹介のカード（左に説明、右に画面の絵） */
.about { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; align-items: start; }

/* 料金のカード（プランごとに1枚） */
.plans { margin-top: 18px; }
/* 無料の枠の残りを見せるゲージ（飾り） */
.gauge { height: 8px; border-radius: 999px; background: var(--line); margin-top: 18px; overflow: hidden; }
.gauge i { display: block; width: 38%; height: 100%; border-radius: 999px; background: #1f8a52; }

/* タイムラインの絵を、白いカードの中に置くとき */
.card .tlp { background: var(--paper); border-color: var(--line); color: var(--ink); }
.card .tlp span, .card .tlp-title { color: var(--muted); }
.card .tlp u { color: #1f8a52; }
.card .tlp b { background: var(--deep); color: var(--bright); }
.card .tlp .re { border-left-color: var(--line); }

/* モニターの募集への申し込み（左に説明、右にフォーム） */
.invite { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; margin-top: 18px; }
.invite form > label:first-child { margin-top: 0; }
.invite label { display: block; font-size: 13px; font-weight: 700; margin: 18px 0 6px; }
.invite .fields { display: flex; gap: 8px; flex-wrap: wrap; }
.invite input[type="email"] { flex: 1 1 220px; min-width: 0; font: inherit; font-size: 16px; padding: 10px 14px; border: 1.5px solid var(--line); border-radius: 10px; background: #fff; color: var(--ink); }
.invite input[type="email"]:focus { outline: none; border-color: var(--deep); }
.invite .uses { border: 0; padding: 0; margin: 18px 0 0; min-width: 0; }
.invite .uses legend { padding: 0; font-size: 13px; font-weight: 700; margin-bottom: 6px; }
.invite .uses label { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 400; margin: 0; padding: 7px 0; cursor: pointer; }
.invite .uses input { width: 18px; height: 18px; margin: 0; accent-color: var(--deep); flex: none; }
.invite form > button { margin-top: 14px; }
.invite button { font: inherit; font-weight: 700; font-size: 15px; padding: 10px 20px; border: 0; border-radius: 999px; background: var(--bright); color: var(--deeper); cursor: pointer; }
.invite button:disabled { opacity: 0.5; cursor: default; }
.invite .note { font-size: 12.5px; margin-top: 12px; }
.invite .note a { border-bottom: 1px solid var(--muted); }
.invite .msg { font-size: 14px; font-weight: 700; margin-top: 12px; min-height: 1.7em; color: var(--deep); }
.invite .msg.error { color: var(--warn); }
/* 人には見せない欄（機械の送信を見分ける） */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

footer { background: var(--deeper); color: rgba(255,255,255,0.6); font-size: 13px; padding: 30px 0; }
footer .mail { color: var(--bright); font-weight: 700; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
footer a:hover { color: #fff; }

/* 文章だけのページ（プライバシーポリシー、特定商取引法に基づく表記） */
.doc { padding: 56px 0 76px; }
.doc .wrap { max-width: 720px; }
.doc h1 { font-size: 28px; margin: 0 0 6px; }
.doc h2 { font-size: 18px; margin: 34px 0 6px; }
.doc p, .doc li { font-size: 15px; }
.doc ul { padding-left: 1.3em; margin: 6px 0; }
.doc .date { color: var(--muted); font-size: 13px; }
.doc a { border-bottom: 1px solid var(--muted); }

@media (max-width: 820px) {
  .hero { padding: 52px 0 60px; }
  .hero-top { margin-bottom: 28px; }
  .lines { grid-auto-flow: row; }
  .line-card { padding: 20px; }
  .g2, .about, .invite { grid-template-columns: minmax(0, 1fr); }
  .product { padding: 54px 0; }
  h2 { font-size: 25px; }
  h2 small { display: block; margin-left: 0; }
}