/* TabiQuest — site styles (Zenly調: 白余白・ミントアクセント・柔らかい影) */
:root {
  --ink: #16263B;
  --sub: #5E7180;
  --mint: #57E0BE;
  --mint-deep: #14B89A;
  --brand: #4C6FFF;
  --brand2: #7A5CFF;
  --sunny: #FFB020;
  --bg: #FFFFFF;
  --bg-tint: #F4FBF8;
  --card: #FFFFFF;
  --line: #E9EFEC;
  --radius: 22px;
  --shadow-card: 0 18px 40px -22px rgba(20,35,58,.28);
  --shadow-soft: 0 8px 22px -12px rgba(20,35,58,.20);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Hiragino Sans", "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1100px 600px at 86% -8%, rgba(87,224,190,.18), transparent 60%),
    radial-gradient(900px 520px at 6% 8%, rgba(255,230,168,.14), transparent 60%),
    linear-gradient(180deg, #F3FBF7 0%, #FFFFFF 46%, #F6FBFF 100%);
  background-attachment: fixed;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---- nav ---- */
.nav {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: saturate(1.4) blur(14px);
  background: rgba(255,255,255,.72);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 19px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand img { width: 34px; height: 34px; border-radius: 9px; box-shadow: var(--shadow-soft); }
.nav-links { margin-left: auto; display: flex; gap: 22px; font-size: 15px; font-weight: 600; }
.nav-links a { color: var(--sub); }
.nav-links a:hover { color: var(--ink); text-decoration: none; }

/* ---- hero ---- */
.hero { padding: 72px 0 40px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
.hero h1 { font-size: 50px; line-height: 1.25; margin: 0 0 18px; letter-spacing: .01em; font-weight: 900; }
.hero .accent-bar { width: 96px; height: 11px; border-radius: 6px; background: var(--mint); margin: 0 0 18px; }
.hero p.lead { font-size: 19px; color: var(--sub); margin: 0 0 30px; }
.cta-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.badge-soon {
  display: inline-flex; align-items: center; gap: 9px;
  background: linear-gradient(120deg, var(--brand), var(--brand2));
  color: #fff; font-weight: 800; font-size: 16px;
  padding: 14px 24px; border-radius: 16px; box-shadow: var(--shadow-card);
  cursor: default;
}
.badge-soon small { font-weight: 600; opacity: .85; }
.hero-note { font-size: 13.5px; color: var(--sub); }
.hero-art { display: flex; justify-content: center; }

/* ---- phone frame ---- */
.phone { background: #0A0D12; padding: 8px; border-radius: 36px; box-shadow: var(--shadow-card); display: inline-block; }
.phone img { display: block; width: 100%; max-width: 286px; border-radius: 28px; }

/* ---- sections ---- */
section { padding: 48px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 40px; }
.section-head h2 { font-size: 32px; font-weight: 900; margin: 0 0 12px; }
.section-head p { color: var(--sub); margin: 0; font-size: 16px; }

/* ---- feature cards ---- */
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.feature {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; box-shadow: var(--shadow-soft);
}
.feature .ico { font-size: 30px; line-height: 1; margin-bottom: 12px; }
.feature h3 { margin: 0 0 8px; font-size: 19px; font-weight: 800; }
.feature p { margin: 0; color: var(--sub); font-size: 15px; }

/* ---- gallery ---- */
.gallery { display: flex; gap: 22px; overflow-x: auto; padding: 8px 4px 18px; scroll-snap-type: x mandatory; }
.gallery .phone { flex: 0 0 auto; scroll-snap-align: center; }
.gallery .phone img { max-width: 240px; }

/* ---- doc pages (support / privacy) ---- */
.doc { padding: 56px 0 24px; }
.doc .wrap { max-width: 760px; }
.doc h1 { font-size: 38px; font-weight: 900; margin: 0 0 6px; }
.doc .updated { color: var(--sub); font-size: 14px; margin: 0 0 32px; }
.doc h2 { font-size: 22px; font-weight: 800; margin: 38px 0 12px; padding-top: 8px; }
.doc p, .doc li { color: #2C3E50; font-size: 16px; }
.doc ul { padding-left: 22px; }
.doc .card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 26px; box-shadow: var(--shadow-soft); margin: 18px 0;
}
.faq { margin: 12px 0; }
.faq details {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  padding: 4px 22px; margin-bottom: 12px; box-shadow: var(--shadow-soft);
}
.faq summary {
  cursor: pointer; font-weight: 700; font-size: 16.5px; padding: 16px 0; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "＋"; color: var(--mint-deep); font-weight: 900; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 18px; color: var(--sub); }
.pill-note {
  display: inline-block; background: rgba(87,224,190,.16); color: var(--mint-deep);
  font-weight: 700; font-size: 13px; padding: 4px 12px; border-radius: 999px;
}

/* ---- footer ---- */
footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 36px 0; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 28px; align-items: center; }
footer .brand { font-size: 16px; }
footer .foot-links { margin-left: auto; display: flex; gap: 22px; font-size: 14px; }
footer .foot-links a { color: var(--sub); font-weight: 600; }
footer .copy { width: 100%; color: var(--sub); font-size: 13px; margin-top: 8px; }

/* ---- responsive ---- */
@media (max-width: 820px) {
  .hero { padding: 48px 0 24px; }
  .hero .wrap { grid-template-columns: 1fr; text-align: center; }
  .hero .accent-bar { margin-left: auto; margin-right: auto; }
  .cta-row { justify-content: center; }
  .hero h1 { font-size: 38px; }
  .features { grid-template-columns: 1fr; }
  .nav-links { gap: 16px; font-size: 14px; }
  .hero-art { order: -1; }
}