/* LiveChatDashboard のページ（トップ・ヘルプ・プライバシーポリシー）で共通の見た目。
   色はアプリのアイコンの森の緑と紺に合わせる。ライト / ダークはシステムに合わせる。 */
:root {
  --bg: #f6f8fb;
  --bg2: #ffffff;
  --ink: #142034;
  --muted: #5a6b82;
  --faint: #8a98ad;
  --border: #e1e6ee;
  --accent: #1f9e7d;
  --accent-ink: #ffffff;
  --card: #ffffff;
  --code: #eef2f7;
  --wrap: 1080px;
  --doc: 800px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1726;
    --bg2: #131e31;
    --ink: #eaf0f7;
    --muted: #a3b1c6;
    --faint: #7b8aa2;
    --border: #243249;
    --accent: #4fd1a8;
    --accent-ink: #0e1726;
    --card: #152238;
    --code: #1b2a42;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Segoe UI", Roboto, sans-serif;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img, video { max-width: 100%; display: block; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
h1, h2, h3 { line-height: 1.35; letter-spacing: 0.01em; }

/* ナビ */
.nav {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--wrap); margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand img { width: 30px; height: 30px; border-radius: 7px; }
.nav-links { display: flex; align-items: center; gap: 20px; font-size: 0.9rem; flex-wrap: wrap; }
.nav-links a { color: var(--muted); }
.nav-links a.active, .nav-links a:hover { color: var(--ink); text-decoration: none; }

/* ボタン */
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--ink); background: var(--card);
  font-weight: 600; font-size: 0.95rem;
}
.btn:hover { text-decoration: none; border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* トップ: ヒーロー */
.hero { padding: 72px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; }
.hero-icon { width: 84px; height: 84px; border-radius: 19px; margin-bottom: 20px; box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.eyebrow { display: inline-block; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.12em; color: var(--accent); text-transform: uppercase; margin-bottom: 8px; }
.hero h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); margin: 0 0 18px; }
.hero h1 .accent { color: var(--accent); }
.lead { font-size: 1.08rem; color: var(--muted); margin: 0 0 26px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.price-note { font-size: 0.85rem; color: var(--faint); margin-top: 14px; }
.hero-media video, .hero-media img { border-radius: 14px; border: 1px solid var(--border); box-shadow: 0 20px 50px rgba(10, 20, 40, .18); }

/* トップ: 節 */
section { padding: 64px 0; }
section.alt { background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 40px; }
.section-head h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 0 0 12px; }
.section-head p { color: var(--muted); margin: 0; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 24px; }
.card .icon { font-size: 1.8rem; margin-bottom: 6px; }
.card h3 { font-size: 1.12rem; margin: 0 0 8px; }
.card p { color: var(--muted); margin: 0; font-size: 0.95rem; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.tag { font-size: 0.78rem; font-weight: 700; padding: 2px 10px; border-radius: 999px; background: color-mix(in srgb, var(--accent) 15%, transparent); color: var(--accent); }
.shots { display: grid; grid-template-columns: 1.2fr 1fr; gap: 24px; align-items: center; }
.shots figure { margin: 0; }
.shots img { border-radius: 12px; border: 1px solid var(--border); box-shadow: 0 14px 36px rgba(10, 20, 40, .14); }
.shots figcaption { text-align: center; color: var(--muted); font-size: 0.88rem; margin-top: 10px; }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.steps .card { position: relative; padding-top: 44px; }
.steps .card::before {
  counter-increment: step; content: counter(step);
  position: absolute; top: 16px; left: 24px; width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent); color: var(--accent-ink); font-size: 0.8rem; font-weight: 700; text-align: center; line-height: 22px;
}
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 300px)); gap: 20px; justify-content: center; }
.plan { text-align: center; }
.plan .price { font-size: 2rem; font-weight: 800; margin: 6px 0; }
.plan .price small { font-size: 0.95rem; font-weight: 600; color: var(--muted); }
.fineprint { text-align: center; color: var(--faint); font-size: 0.85rem; margin-top: 18px; }

/* 文書（ヘルプ・プライバシーポリシー） */
.doc { max-width: var(--doc); margin: 0 auto; padding: 40px 24px 80px; }
.doc h1 { font-size: 2rem; margin: 0 0 12px; }
.doc h2 { font-size: 1.45rem; margin: 48px 0 12px; padding-top: 12px; border-top: 1px solid var(--border); scroll-margin-top: 72px; }
.doc h3 { font-size: 1.12rem; margin: 28px 0 8px; scroll-margin-top: 72px; }
.doc p { margin: 0 0 14px; }
.doc ul, .doc ol { padding-left: 1.4em; margin: 0 0 14px; }
.doc li { margin: 4px 0; }
.doc li > ul, .doc li > ol { margin: 4px 0; }
.doc code { background: var(--code); border-radius: 4px; padding: 1px 6px; font-size: 0.9em; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; word-break: break-all; }
.doc .note { color: var(--muted); font-size: 0.92rem; }
.table-wrap { overflow-x: auto; margin: 0 0 18px; }
.doc table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
.doc th, .doc td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; vertical-align: top; }
.doc th { background: var(--code); }
.lang-divider { margin: 56px 0 8px; text-align: center; color: var(--muted); font-size: 0.85rem; letter-spacing: 0.1em; }

/* フッター */
footer { padding: 36px 24px 48px; border-top: 1px solid var(--border); color: var(--muted); font-size: 0.88rem; text-align: center; }
footer a { color: var(--muted); }
footer .copy { margin-top: 10px; color: var(--faint); }

/* グリッドの中身が幅いっぱいまで縮むように（動画・長い語で横にはみ出さない） */
.hero-grid > *, .grid > *, .shots > *, .steps > *, .plans > * { min-width: 0; }
body { overflow-wrap: anywhere; }
.brand { white-space: nowrap; flex-shrink: 0; }
.doc th, .doc td { overflow-wrap: break-word; }
.doc td:first-child { min-width: 9em; }

@media (max-width: 860px) {
  .hero-grid, .shots, .grid, .steps { grid-template-columns: 1fr; }
  .plans { grid-template-columns: minmax(0, 340px); }
  .hero { padding-top: 40px; }
  .nav-links { gap: 12px; font-size: 0.82rem; }
}
@media (max-width: 480px) {
  .nav-inner { padding: 10px 16px; }
  .brand { font-size: 0.92rem; }
  .nav-links a[href="#start"], .nav-links a[href="#pricing"] { display: none; }
  .nav-links { gap: 10px; font-size: 0.78rem; justify-content: flex-end; }
  .wrap, .doc { padding-left: 16px; padding-right: 16px; }
  .card { padding: 20px; }
}