/* Tribe site — shared styles (Apple 風ニュートラル + アクセントに炎のオレンジ) */
:root {
  --bg: #f5f5f7;
  --surface: #ffffff;
  --surface-hi: #ececf0;
  --ink: #1d1d1f;
  --muted: #86868b;
  --line: #e5e5ea;
  --ember: #E8481C;
  --ember-soft: #fdeee6;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #161618;
    --surface: #232326;
    --surface-hi: #2c2c30;
    --ink: #f5f5f7;
    --muted: #98989e;
    --line: #313135;
    --ember: #FF6A3D;
    --ember-soft: #3a2a22;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  }
}
:root[data-theme="dark"] {
  --bg: #161618;
  --surface: #232326;
  --surface-hi: #2c2c30;
  --ink: #f5f5f7;
  --muted: #98989e;
  --line: #313135;
  --ember: #FF6A3D;
  --ember-soft: #3a2a22;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.display {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.4;
  text-wrap: balance;
}

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

/* ---- header ---- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.05rem;
  color: var(--ink); text-decoration: none;
}
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px;
  display: block; object-fit: cover;
}
.site-nav { display: flex; gap: 22px; }
.site-nav a {
  color: var(--muted); text-decoration: none;
  font-size: 0.88rem; font-weight: 500;
}
.site-nav a:hover, .site-nav a:focus-visible { color: var(--ember); }
a:focus-visible { outline: 2px solid var(--ember); outline-offset: 3px; border-radius: 4px; }

/* ---- hero ---- */
.hero { padding: 72px 0 40px; overflow: hidden; }
.hero .wrap {
  display: grid; grid-template-columns: 1fr 340px;
  gap: 48px; align-items: center;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--ember-soft); color: var(--ember);
  font-size: 0.8rem; font-weight: 700;
  padding: 6px 14px; border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.1rem);
  letter-spacing: 0.01em;
  margin-bottom: 18px;
}
.hero h1 .em { color: var(--ember); }
.hero-lead {
  color: var(--muted); max-width: 34em;
  margin-bottom: 28px;
}
.hero-cta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.badge-soon {
  display: inline-flex; flex-direction: column; justify-content: center;
  border: 1.5px solid var(--ink); border-radius: 12px;
  padding: 8px 18px; line-height: 1.3;
}
.badge-soon .small { font-size: 0.68rem; color: var(--muted); }
.badge-soon .big { font-weight: 700; font-size: 1.02rem; }
.hero-note { font-size: 0.8rem; color: var(--muted); }

/* ---- phone mockup ---- */
.phone {
  width: 300px; margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 40px;
  padding: 18px 14px 22px;
  box-shadow: var(--shadow);
}
.phone-top {
  display: flex; justify-content: space-between; align-items: center;
  padding: 2px 8px 12px;
}
.streak-chip {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--ember-soft); color: var(--ember);
  font-weight: 800; font-size: 0.78rem;
  padding: 4px 10px; border-radius: 999px;
}
.phone-title { font-weight: 700; font-size: 0.85rem; color: var(--muted); }
.feed-card {
  background: var(--surface-hi);
  border-radius: 18px; padding: 12px;
}
.feed-head { display: flex; align-items: center; gap: 8px; margin-bottom: 10px; }
.feed-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--line);
  display: grid; place-items: center; font-size: 16px;
}
.feed-name { font-weight: 700; font-size: 0.82rem; line-height: 1.3; }
.feed-time { font-size: 0.68rem; color: var(--muted); }
.feed-photo {
  border-radius: 12px; height: 150px;
  background: linear-gradient(140deg, #2E2724 0%, #4A3A31 55%, #6E4A35 100%);
  display: grid; place-items: center;
  color: #F5EFE9; font-size: 40px;
  margin-bottom: 10px;
}
.feed-menu { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.chip {
  background: var(--surface); border: 1px solid var(--line);
  font-size: 0.68rem; font-weight: 600;
  padding: 3px 9px; border-radius: 999px;
  font-variant-numeric: tabular-nums;
}
.feed-foot { display: flex; gap: 14px; font-size: 0.78rem; color: var(--muted); }
.feed-foot .like { color: var(--ember); font-weight: 700; }

/* ---- sections ---- */
.section { padding: 64px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-eyebrow {
  color: var(--ember); font-weight: 800; font-size: 0.8rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  margin-bottom: 10px;
}
.section h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); margin-bottom: 14px; }
.section-lead { color: var(--muted); max-width: 40em; margin-bottom: 36px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 18px; padding: 26px 22px;
}
.card-icon {
  width: 44px; height: 44px; border-radius: 13px;
  background: var(--ember-soft);
  display: grid; place-items: center; font-size: 22px;
  margin-bottom: 14px;
}
.card h3 { font-size: 1.02rem; margin-bottom: 8px; }
.card p { font-size: 0.88rem; color: var(--muted); line-height: 1.8; }

.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 28px; }
.feature {
  display: flex; gap: 12px; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 14px; padding: 16px 18px;
}
.feature .f-icon { font-size: 20px; line-height: 1.6; }
.feature h4 { font-size: 0.92rem; margin-bottom: 2px; }
.feature p { font-size: 0.82rem; color: var(--muted); line-height: 1.7; }

/* ---- philosophy ---- */
.philosophy {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 44px 40px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 36px;
}
.philosophy h2 { margin-bottom: 14px; }
.philosophy p { color: var(--muted); font-size: 0.92rem; }
.no-list { list-style: none; display: grid; gap: 10px; }
.no-list li {
  display: flex; gap: 10px; align-items: baseline;
  font-size: 0.92rem; font-weight: 500;
}
.no-list .x { color: var(--ember); font-weight: 800; }

/* ---- FAQ ---- */
.faq { max-width: 720px; }
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
}
.faq summary {
  cursor: pointer; font-weight: 700; font-size: 0.95rem;
  padding: 14px 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(--ember); font-weight: 800; font-size: 1.1rem; }
.faq details[open] summary::after { content: "−"; }
.faq .a { color: var(--muted); font-size: 0.9rem; padding: 0 0 16px; }

/* ---- footer ---- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 36px 0 48px;
  font-size: 0.85rem; color: var(--muted);
}
.site-footer .wrap {
  display: flex; justify-content: space-between; align-items: center;
  gap: 18px; flex-wrap: wrap;
}
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--ember); }

/* ---- doc pages (terms / privacy / support) ---- */
.doc { max-width: 760px; margin: 0 auto; padding: 56px 24px 80px; }
.doc h1 { font-size: 1.7rem; margin-bottom: 8px; }
.doc .doc-date { color: var(--muted); font-size: 0.82rem; margin-bottom: 36px; }
.doc h2 {
  font-size: 1.12rem; margin: 40px 0 12px;
  padding-top: 8px;
}
.doc p, .doc li { font-size: 0.93rem; color: var(--ink); }
.doc p + p { margin-top: 10px; }
.doc ul, .doc ol { padding-left: 1.5em; margin: 10px 0; }
.doc li { margin: 4px 0; }
.doc .muted { color: var(--muted); }
.doc a { color: var(--ember); }
.doc table {
  width: 100%; border-collapse: collapse; margin: 14px 0;
  font-size: 0.88rem;
}
.doc th, .doc td {
  border: 1px solid var(--line); padding: 10px 12px;
  text-align: left; vertical-align: top;
}
.doc th { background: var(--surface-hi); font-weight: 700; white-space: nowrap; }
.table-scroll { overflow-x: auto; }
.doc hr { border: 0; border-top: 1px solid var(--line); margin: 48px 0 8px; }

/* ---- responsive ---- */
@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 40px; }
  .phone { margin: 0 auto; }
  .cards { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .philosophy { grid-template-columns: 1fr; padding: 32px 24px; }
  .site-nav { display: none; }
}