:root {
  color-scheme: light;
  --bg: #f7f4ee;
  --paper: rgba(255, 251, 245, 0.9);
  --paper-strong: rgba(255, 255, 255, 0.96);
  --ink: #14263d;
  --muted: #5f6f82;
  --line: rgba(20, 38, 61, 0.12);
  --accent: #ff9b52;
  --accent-soft: rgba(255, 155, 82, 0.18);
  --teal: #4fb9bf;
  --teal-soft: rgba(79, 185, 191, 0.16);
  --blue: #1e6cab;
  --shadow: 0 24px 70px rgba(20, 38, 61, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --site-width: min(1120px, calc(100% - 32px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Sans JP", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255, 155, 82, 0.22), transparent 26%),
    radial-gradient(circle at top right, rgba(79, 185, 191, 0.22), transparent 28%),
    linear-gradient(180deg, #fbf7f0 0%, #f4f8fb 54%, #fffdf9 100%);
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-shell {
  width: var(--site-width);
  margin: 0 auto;
  padding: 20px 0 56px;
}

.topbar {
  position: sticky;
  top: 12px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 12px 34px rgba(20, 38, 61, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: "Bricolage Grotesque", "Noto Sans JP", sans-serif;
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent) 0%, #ffcf78 100%);
  color: #10263f;
  font-size: 15px;
  font-weight: 800;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nav a {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.nav a:hover,
.nav a:focus-visible {
  background: var(--teal-soft);
  color: var(--ink);
  text-decoration: none;
}

main {
  display: grid;
  gap: 18px;
}

.hero,
.panel,
.hero-side,
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--paper);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero {
  padding: 34px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(300px, 0.95fr);
  gap: 18px;
  align-items: stretch;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.05;
  font-family: "Bricolage Grotesque", "Noto Sans JP", sans-serif;
}

h1 {
  max-width: 12ch;
  font-size: clamp(42px, 7vw, 78px);
}

h2 {
  font-size: clamp(26px, 4vw, 38px);
}

h3 {
  font-size: 21px;
}

p,
li,
dd,
dt {
  font-size: 16px;
  line-height: 1.72;
}

.lede {
  max-width: 58ch;
  margin: 18px 0 0;
  font-size: 18px;
}

.muted {
  color: var(--muted);
}

.top-note {
  margin-top: 16px;
  color: var(--muted);
  font-size: 14px;
}

.hero-side {
  padding: 22px;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.96) 0%, rgba(242, 249, 249, 0.92) 100%);
}

.stack {
  display: grid;
  gap: 14px;
}

.kicker {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.mini-list,
.pill-list,
.check-list,
.link-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.mini-list li,
.check-list li {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--paper-strong);
  border: 1px solid var(--line);
}

.pill-list {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.pill-list li {
  padding: 14px 16px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid rgba(255, 155, 82, 0.22);
  font-size: 14px;
  font-weight: 700;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 999px;
  font-weight: 800;
  text-align: center;
  transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

.button {
  background: linear-gradient(135deg, var(--accent) 0%, #ffbe67 100%);
  color: #122841;
  box-shadow: 0 14px 26px rgba(255, 155, 82, 0.25);
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink);
}

.button:hover,
.button-secondary:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.panel {
  padding: 28px;
}

.panel-grid,
.feature-grid,
.dual-grid,
.faq-grid {
  display: grid;
  gap: 16px;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.panel-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.dual-grid,
.faq-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.feature-card,
.info-card,
.lang-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper-strong);
}

.feature-card p,
.info-card p,
.lang-card p,
.lang-card li,
.faq-item p,
.faq-item li {
  margin: 12px 0 0;
}

.feature-tag,
.lang-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--teal-soft);
  color: #1b4a4d;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.faq-item {
  padding: 22px;
}

.faq-item h3 {
  margin-top: 10px;
}

.faq-item + .faq-item {
  margin-top: 16px;
}

.contact-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.contact-strip a,
.contact-strip span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
}

.fine-print {
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: rgba(20, 38, 61, 0.04);
  color: var(--muted);
  font-size: 14px;
}

.footer {
  padding: 22px 10px 0;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .hero-grid,
  .feature-grid,
  .panel-grid,
  .dual-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: none;
  }
}

@media (max-width: 720px) {
  :root {
    --site-width: min(100% - 20px, 1120px);
  }

  .topbar {
    position: static;
    flex-direction: column;
    align-items: stretch;
    border-radius: 24px;
  }

  .nav {
    justify-content: space-between;
  }

  .hero,
  .panel,
  .hero-side,
  .faq-item {
    border-radius: 24px;
  }

  .hero,
  .panel {
    padding: 22px;
  }

  .cta-row {
    flex-direction: column;
  }

  .button,
  .button-secondary {
    width: 100%;
  }
}