@import url("tokens/colors.css");
@import url("tokens/typography.css");
@import url("tokens/spacing.css");
@import url("tokens/effects.css");

/* ------------------------------------------------------------------ */
/* Base                                                                 */
/* ------------------------------------------------------------------ */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
.wrap { max-width: var(--content-max); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: var(--content-narrow); margin: 0 auto; padding: 0 24px; }

/* ------------------------------------------------------------------ */
/* Language toggle — mirrors the design mock's {{dEn}}/{{dJa}}/{{dTh}}   */
/* display-swap pattern, driven by body[data-lang] instead of a template */
/* engine.                                                               */
/* ------------------------------------------------------------------ */
[lang-variant] { display: none; }
body[data-lang="en"] [lang-variant="en"] { display: inherit; }
body[data-lang="ja"] [lang-variant="ja"] { display: inherit; }
body[data-lang="th"] [lang-variant="th"] { display: inherit; }
span[lang-variant] { display: none; }
body[data-lang="en"] span[lang-variant="en"] { display: inline; }
body[data-lang="ja"] span[lang-variant="ja"] { display: inline; }
body[data-lang="th"] span[lang-variant="th"] { display: inline; }

/* ------------------------------------------------------------------ */
/* Buttons — chunky "3D block" affordance (hard offset shadow,          */
/* translateY + shadow-compress on press, never opacity/blur).          */
/* ------------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: var(--weight-black);
  text-decoration: none;
  cursor: pointer;
  user-select: none;
  border: none;
  border-radius: var(--radius-lg);
  transition: transform var(--duration-press) ease, box-shadow var(--duration-press) ease;
}
.btn:active { transform: translateY(3px); }
.btn-sm { padding: 9px 18px; font-size: var(--text-sm); border-radius: var(--radius-md); }
.btn-md { padding: 13px 26px; font-size: var(--text-md); }
.btn-lg { padding: 16px 34px; font-size: var(--text-lg); }
.btn-lg:active { transform: translateY(3px); }
.btn-sm:active, .btn-md:active { transform: translateY(2px); }

.btn-primary { background: var(--shu); color: #fff; box-shadow: var(--block-shadow-shu); }
.btn-primary:active { box-shadow: var(--block-shadow-shu-sm); }
.btn-brand { background: var(--indigo); color: #fff; box-shadow: var(--block-shadow-indigo); }
.btn-brand:active { box-shadow: var(--block-shadow-indigo-sm); }
.btn-dark { background: var(--ink); color: #fff; box-shadow: var(--block-shadow-ink); }
.btn-dark:active { box-shadow: var(--block-shadow-ink-sm); }
.btn-ghost { background: transparent; color: var(--night-text-soft); border: 2px solid var(--night-line); box-shadow: none; }
.btn-ghost:active { transform: translateY(1px); border-color: #8fa2e0; }
.btn-block { display: flex; width: 100%; }

/* ------------------------------------------------------------------ */
/* Nav                                                                   */
/* ------------------------------------------------------------------ */
.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 16px 24px;
  background: var(--ink);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 40;
}
.nav-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-mark {
  width: 42px; height: 42px; background: var(--indigo); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center; font-size: 24px; font-weight: 900;
  box-shadow: var(--block-shadow-indigo); color: #fff; flex: none;
}
.nav-word { font-family: var(--font-pixel-jp); font-size: 20px; letter-spacing: 1px; color: #fff; }
.nav-links { flex: 1; display: flex; gap: 26px; justify-content: center; font-size: var(--text-md); font-weight: var(--weight-medium); }
.nav-links a { color: var(--night-text-soft); text-decoration: none; }
.nav-links a:hover { color: #fff; }
.nav-right { display: flex; align-items: center; gap: 14px; }
.lang-pill {
  cursor: pointer; font-size: var(--text-sm); font-weight: var(--weight-bold);
  padding: 7px 14px; border: 1px solid var(--night-line); border-radius: var(--radius-pill); color: var(--night-text-soft);
  background: transparent;
}
.nav-menu-btn { display: none; background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; padding: 4px; }
.mobile-nav {
  display: none;
  position: fixed; inset: 0; top: 74px; background: var(--ink); z-index: 39;
  flex-direction: column; padding: 8px 24px 24px; gap: 4px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a { color: var(--night-text-soft); text-decoration: none; font-size: var(--text-lg); font-weight: var(--weight-medium); padding: 14px 0; border-bottom: 1px solid var(--night-line); }
.mobile-nav .btn { margin-top: 16px; }

/* ------------------------------------------------------------------ */
/* Hero                                                                  */
/* ------------------------------------------------------------------ */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #1c2740 0%, #26346a 55%, #3b57c4 130%);
  color: #fff;
  padding: 72px 24px 88px;
}
.hero-inner { display: flex; gap: 48px; align-items: center; position: relative; max-width: var(--content-max); margin: 0 auto; }
.hero-copy { flex: 1; min-width: 0; }
.hero-eyebrow { font-family: var(--font-pixel-jp); font-size: var(--text-base); letter-spacing: 3px; color: var(--teal-bright); margin-bottom: 18px; }
.hero-headline { font-size: var(--text-6xl); font-weight: 900; line-height: var(--leading-tight); letter-spacing: -0.5px; }
.hero-headline .accent { color: var(--gold-bright); }
.hero-sub { font-size: var(--text-lg); line-height: var(--leading-loose); color: var(--night-text-soft); margin-top: 20px; max-width: 480px; }
.hero-ctas { display: flex; gap: 14px; margin-top: 32px; align-items: center; flex-wrap: wrap; }
.hero-tag { font-family: var(--font-pixel-en); font-size: 10px; color: var(--night-text-faint); margin-top: 22px; letter-spacing: 1px; }

.hero-mock { width: 400px; flex: none; }
.mock-frame { background: var(--paper); border-radius: var(--radius-2xl); padding: 18px; box-shadow: 0 14px 0 rgba(0, 0, 0, .25); }
.mock-bar { display: flex; align-items: center; gap: 10px; background: var(--ink); border-radius: var(--radius-lg); padding: 10px 14px; color: #fff; font-size: var(--text-sm); font-weight: var(--weight-bold); }
.mock-lv { background: var(--indigo); border-radius: 6px; padding: 3px 8px; font-family: var(--font-pixel-jp); }
.mock-xp { flex: 1; height: 8px; background: #39466e; border-radius: 4px; overflow: hidden; }
.mock-xp > div { width: 64%; height: 100%; background: linear-gradient(90deg, var(--teal), var(--teal-bright)); }
.mock-coin { color: var(--gold-bright); }
.mock-streak { color: #ff9d6e; }
.mock-card { background: #fff; border-radius: var(--radius-xl); margin-top: 12px; padding: 22px; text-align: center; border: 1px solid var(--line); }
.mock-label { font-size: var(--text-xs); font-weight: var(--weight-bold); color: var(--sub); letter-spacing: 2px; }
.mock-kanji { font-size: 88px; font-weight: 900; color: var(--ink); line-height: 1.15; }
.mock-choices { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 8px; }
.mock-choice { border: 2px solid var(--line); color: var(--sub); font-weight: var(--weight-bold); padding: 10px; border-radius: var(--radius-md); font-size: var(--text-md); background: var(--paper); }
.mock-choice.correct { background: var(--teal-soft); border-color: var(--teal); color: var(--teal); }
.mock-choice.disabled { text-decoration: line-through; opacity: .45; }
.mock-powerups { display: flex; justify-content: center; gap: 8px; margin-top: 12px; font-size: var(--text-sm); font-weight: var(--weight-bold); flex-wrap: wrap; }
.mock-powerups > div { border-radius: var(--radius-sm); padding: 6px 12px; }
.pu-freeze { background: var(--indigo-soft); color: var(--indigo); }
.pu-fifty { background: var(--gold-soft); color: var(--gold); }
.pu-timer { background: var(--shu-soft); color: var(--shu); animation: ktPulse var(--duration-pulse) infinite; }
.mock-hotbar { display: flex; gap: 6px; margin-top: 12px; justify-content: center; }
.mock-slot { width: 46px; height: 46px; background: var(--ink); border: 2px solid var(--night-line); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 20px; }
.mock-slot.gold { border-color: var(--gold); }
.mock-slot.add { font-size: 16px; color: var(--sub); font-family: var(--font-pixel-jp); }

.voxel {
  position: absolute; border-radius: var(--radius-blocky); display: flex; align-items: center;
  justify-content: center; font-weight: 900; color: #fff; box-shadow: var(--block-shadow-tile); z-index: 0;
}
@keyframes ktBob { 0%, 100% { transform: translateY(0) rotate(-3deg); } 50% { transform: translateY(-10px) rotate(-3deg); } }
@keyframes ktBob2 { 0%, 100% { transform: translateY(-6px) rotate(4deg); } 50% { transform: translateY(4px) rotate(4deg); } }
@keyframes ktPulse { 0%, 100% { opacity: 1; } 50% { opacity: .55; } }

/* ------------------------------------------------------------------ */
/* Trust hotbar                                                         */
/* ------------------------------------------------------------------ */
.trustbar { background: var(--night-3); padding: 18px 24px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.trust-item { flex: 1; min-width: 150px; max-width: 220px; background: var(--night-1); border: 2px solid var(--night-line); border-radius: var(--radius-md); padding: 12px 16px; text-align: center; }
.trust-num { font-family: var(--font-pixel-en); font-size: var(--text-lg); }
.trust-label { font-size: var(--text-xs); color: var(--night-text-faint); font-weight: var(--weight-medium); margin-top: 4px; }

/* ------------------------------------------------------------------ */
/* Section shell                                                        */
/* ------------------------------------------------------------------ */
.section { padding: 76px 24px; }
.section-tight { padding: 70px 24px; }
.eyebrow-pill { display: inline-block; font-weight: var(--weight-bold); font-size: var(--text-sm); padding: 6px 16px; border-radius: var(--radius-pill); letter-spacing: 1px; }
.eyebrow-shu { background: var(--shu-soft); color: var(--shu); }
.eyebrow-teal { background: var(--teal-soft); color: var(--teal); }
.section-title { font-size: var(--text-5xl); font-weight: 900; color: var(--ink); margin-top: 16px; text-align: center; }
.section-body { font-size: var(--text-lg); line-height: var(--leading-loose); color: var(--sub); margin-top: 16px; text-align: center; }

/* Problem */
.problem-cards { display: flex; gap: 20px; justify-content: center; margin-top: 36px; flex-wrap: wrap; }
.problem-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-xl); padding: 20px 24px; width: 300px; text-align: left; }
.problem-card.dark { background: var(--ink); color: #fff; box-shadow: 0 6px 0 rgba(28, 39, 64, .25); border: none; }
.problem-kicker { font-size: var(--text-sm); font-weight: var(--weight-bold); letter-spacing: 1px; }
.problem-kicker.bad { color: var(--shu); }
.problem-kicker.good { color: var(--teal-bright); }
.problem-line { font-size: var(--text-md); font-weight: var(--weight-bold); margin-top: 8px; }
.problem-desc { font-size: var(--text-base); color: var(--sub); margin-top: 6px; line-height: var(--leading-normal); }
.problem-card.dark .problem-desc { color: var(--night-text-soft); }

/* Loop */
.loop-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; margin-top: 44px; }
.loop-card { border-radius: var(--radius-xl); padding: 26px; border-bottom: 6px solid; }
.loop-tag { font-family: var(--font-pixel-jp); font-size: var(--text-sm); letter-spacing: 2px; }
.loop-title { font-size: var(--text-2xl); font-weight: 900; color: var(--ink); margin-top: 6px; }
.loop-desc { font-size: var(--text-base); line-height: var(--leading-loose); color: var(--ink-soft); margin-top: 10px; }
.loop-note { text-align: center; margin-top: 26px; font-size: var(--text-base); font-weight: var(--weight-bold); color: var(--shu); }

/* Kids love */
.kids-love { background: var(--ink); padding: 76px 24px; color: #fff; }
.kids-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 40px; }
.kids-card { background: var(--night-2); border-radius: var(--radius-xl); padding: 24px; border: 2px solid var(--night-line); }
.kids-title { font-size: var(--text-xl); font-weight: 900; }
.kids-desc { font-size: var(--text-base); color: var(--night-text-soft); line-height: var(--leading-normal); margin-top: 6px; }
.dex-row { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.dex-tile { width: 52px; height: 52px; background: var(--ink); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 26px; font-weight: 900; }
.dex-tile.rare { border: 2px solid var(--rarity-rare); color: #8fa2e0; }
.dex-tile.epic { border: 2px solid var(--rarity-epic); color: #c99ae8; box-shadow: var(--glow-epic); }
.dex-tile.common { border: 2px solid var(--sub); }
.dex-tile.unknown { background: var(--night-3); border: 2px dashed var(--night-line); font-size: 18px; color: var(--night-line); }
.egg-row { display: flex; gap: 10px; margin-top: 14px; align-items: center; }
.egg { background: var(--ink); border-radius: var(--radius-md); padding: 8px 14px; font-size: 22px; border: 2px solid; }
.egg.pick { box-shadow: var(--glow-teal-ring); }
.pick-label { font-family: var(--font-pixel-jp); font-size: var(--text-sm); color: var(--teal-bright); }
.boss-panel { margin-top: 14px; background: var(--night-3); border-radius: var(--radius-md); padding: 12px 14px; }
.boss-row { display: flex; justify-content: space-between; font-size: var(--text-sm); font-weight: var(--weight-bold); color: #ff9d6e; }
.boss-bar { height: 10px; background: var(--night-line); border-radius: 5px; margin-top: 6px; overflow: hidden; }
.boss-bar > div { height: 100%; background: linear-gradient(90deg, var(--shu), #ff9d6e); }
.league-rows { margin-top: 14px; display: flex; flex-direction: column; gap: 6px; font-size: var(--text-base); font-weight: var(--weight-bold); }
.league-row { display: flex; justify-content: space-between; background: var(--night-3); border-radius: var(--radius-sm); padding: 8px 12px; }
.league-row.me { border: 1px solid var(--teal); }

/* Safety */
.safety-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 40px; }
.safety-card { background: #fff; border-radius: var(--radius-xl); padding: 24px; border: 1px solid var(--line); }
.safety-icon { font-size: 26px; }
.safety-title { font-size: var(--text-xl); font-weight: 900; color: var(--ink); margin-top: 8px; }
.safety-desc { font-size: var(--text-base); color: var(--sub); line-height: var(--leading-loose); margin-top: 8px; }

.dashboard-row { display: flex; gap: 36px; margin-top: 56px; align-items: center; flex-wrap: wrap; }
.dashboard-copy { flex: 1; min-width: 260px; }
.dashboard-copy-title { font-size: var(--text-3xl); font-weight: 900; color: var(--ink); }
.dashboard-copy-body { font-size: var(--text-md); color: var(--sub); line-height: var(--leading-loose); margin-top: 12px; }
.dashboard-mock { width: 420px; flex: none; background: #fff; border-radius: var(--radius-xl); border: 1px solid var(--line); padding: 20px; box-shadow: var(--ambient-shadow-card); }
.dashboard-head { display: flex; justify-content: space-between; align-items: center; }
.dashboard-title { font-size: var(--text-base); font-weight: 900; color: var(--ink); }
.dashboard-child { font-size: var(--text-xs); font-weight: var(--weight-bold); color: var(--teal); background: var(--teal-soft); border-radius: var(--radius-pill); padding: 4px 10px; }
.dashboard-chart { display: flex; gap: 5px; align-items: flex-end; height: 64px; margin-top: 14px; }
.dashboard-bar { flex: 1; border-radius: 4px 4px 0 0; }
.dashboard-days { font-size: var(--text-xs); color: var(--sub); display: flex; justify-content: space-between; margin-top: 4px; }
.dashboard-log { border-top: 1px solid var(--line); margin-top: 14px; padding-top: 12px; display: flex; flex-direction: column; gap: 8px; font-size: var(--text-sm); }
.dashboard-log-row { display: flex; justify-content: space-between; }
.dashboard-log-row span:first-child { color: var(--ink-soft); }
.dashboard-log-row span:last-child { font-weight: var(--weight-black); }

/* Pricing */
.pricing-cards { display: flex; gap: 20px; margin-top: 40px; text-align: left; flex-wrap: wrap; }
.pricing-card { flex: 1; min-width: 280px; border: 2px solid var(--line); border-radius: var(--radius-2xl); padding: 28px; }
.pricing-card.highlight { border-color: var(--indigo); background: var(--indigo-soft); position: relative; }
.pricing-badge { position: absolute; top: -13px; right: 22px; background: var(--gold); color: #fff; font-size: var(--text-xs); font-weight: var(--weight-bold); padding: 5px 12px; border-radius: var(--radius-pill); letter-spacing: 1px; }
.pricing-kicker { font-size: var(--text-base); font-weight: var(--weight-bold); color: var(--sub); letter-spacing: 1px; }
.pricing-card.highlight .pricing-kicker { color: var(--indigo); }
.pricing-amount { font-size: var(--text-5xl); font-weight: 900; color: var(--ink); margin-top: 4px; }
.pricing-amount small { font-size: var(--text-base); font-weight: var(--weight-bold); color: var(--sub); }
.pricing-plan-title { font-size: var(--text-2xl); font-weight: 900; color: var(--ink); margin-top: 12px; }
.pricing-features { font-size: var(--text-base); color: var(--ink-soft); line-height: 2.1; margin-top: 14px; }
.pricing-note { font-size: var(--text-sm); color: var(--sub); margin-top: 16px; line-height: var(--leading-normal); }
.pricing-cta { margin-top: 20px; }

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 12px; margin-top: 32px; }
.faq-item { background: #fff; border-radius: var(--radius-lg); padding: 20px 24px; border: 1px solid var(--line); }
.faq-q { font-size: var(--text-md); font-weight: 800; color: var(--ink); }
.faq-a { font-size: var(--text-sm); color: var(--sub); line-height: var(--leading-loose); margin-top: 6px; }

/* Closing */
.closing { background: linear-gradient(160deg, var(--night-2), var(--indigo)); padding: 80px 24px; text-align: center; color: #fff; }
.closing-eyebrow { font-family: var(--font-pixel-jp); font-size: var(--text-sm); letter-spacing: 3px; color: var(--teal-bright); }
.closing-title { font-size: var(--text-4xl); font-weight: 900; margin-top: 12px; line-height: var(--leading-snug); }
.closing-sub { font-size: var(--text-lg); color: var(--night-text-soft); margin-top: 12px; }
.closing .btn { margin-top: 30px; }

/* Footer */
.footer { background: var(--night-3); color: var(--night-text-faint); padding: 28px 24px; display: flex; justify-content: space-between; align-items: center; font-size: var(--text-sm); flex-wrap: wrap; gap: 12px; }
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-mark { width: 26px; height: 26px; background: var(--indigo); border-radius: 6px; display: flex; align-items: center; justify-content: center; font-weight: 900; color: #fff; font-size: 15px; }
.footer-word { font-family: var(--font-pixel-jp); font-size: var(--text-md); color: var(--night-text-soft); }
.footer-links { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.footer-links a { color: var(--night-text-faint); text-decoration: none; }
.footer-links a:hover { color: #fff; }
.footer-lang { cursor: pointer; color: var(--night-text-soft); background: none; border: none; font: inherit; padding: 0; }

/* ------------------------------------------------------------------ */
/* Responsive                                                           */
/* ------------------------------------------------------------------ */
@media (max-width: 900px) {
  .hero-inner { flex-direction: column; align-items: stretch; }
  .hero-mock { width: 100%; max-width: 400px; margin: 0 auto; }
  .hero-headline { font-size: var(--text-5xl); }
  .safety-grid { grid-template-columns: 1fr; }
  .loop-grid { grid-template-columns: 1fr; }
  .kids-grid { grid-template-columns: 1fr; }
  .dashboard-row { justify-content: center; }
  .dashboard-mock { width: 100%; max-width: 420px; }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-menu-btn { display: block; }
  .section, .section-tight { padding: 56px 20px; }
  .hero { padding: 48px 20px 64px; }
  .hero-headline { font-size: var(--text-4xl); }
  .section-title { font-size: var(--text-4xl); }
  .closing-title { font-size: var(--text-3xl); }
  .pricing-cards { flex-direction: column; }
  .voxel { display: none; }
  .footer { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .hero-headline { font-size: var(--text-3xl); }
  .mock-kanji { font-size: 64px; }
  .hero-ctas { flex-direction: column; align-items: stretch; }
  .hero-ctas .btn { width: 100%; }
}

/* ------------------------------------------------------------------ */
/* Legal documents (Privacy / Terms)                                    */
/* ------------------------------------------------------------------ */
.legal-header { background: var(--ink); color: #fff; padding: 48px 24px 40px; }
.legal-header .wrap-narrow { text-align: left; }
.legal-back { color: var(--night-text-soft); text-decoration: none; font-size: var(--text-sm); font-weight: var(--weight-medium); display: inline-flex; align-items: center; gap: 6px; }
.legal-back:hover { color: #fff; }
.legal-title { font-size: var(--text-5xl); font-weight: 900; margin-top: 18px; }
.legal-updated { font-size: var(--text-sm); color: var(--night-text-faint); margin-top: 10px; }

.legal-body { padding: 56px 24px 90px; background: #fff; }
.legal-content { max-width: var(--content-narrow); margin: 0 auto; font-size: var(--text-md); line-height: var(--leading-loose); color: var(--ink-soft); }
.legal-content h2 { font-size: var(--text-2xl); font-weight: 900; color: var(--ink); margin: 44px 0 14px; }
.legal-content h2:first-child { margin-top: 0; }
.legal-content h3 { font-size: var(--text-lg); font-weight: 800; color: var(--ink); margin: 26px 0 8px; }
.legal-content p { margin: 0 0 14px; }
.legal-content ul, .legal-content ol { margin: 0 0 14px; padding-left: 22px; }
.legal-content li { margin-bottom: 8px; }
.legal-content a { color: var(--indigo); }
.legal-content strong { color: var(--ink); }
.legal-table { width: 100%; border-collapse: collapse; margin: 0 0 20px; font-size: var(--text-base); }
.legal-table th, .legal-table td { text-align: left; padding: 10px 12px; border: 1px solid var(--line); vertical-align: top; }
.legal-table th { background: var(--paper); font-weight: 800; color: var(--ink); }
.legal-note { background: var(--indigo-soft); border-radius: var(--radius-lg); padding: 16px 20px; font-size: var(--text-base); color: var(--ink-soft); margin: 0 0 20px; }