/*
 * Design rules (from the Appllama study of Cal AI / Calo / BetterMe / MyFitnessPal / Duolingo funnels):
 * - One accent: the app's green. It is spent only on the primary action, progress, selection and the timeline.
 * - One grey family (neutral). Shape scale: cards / options / buttons 16, badges and chips are pills.
 * - Buttons keep the app's chunky 3D edge (src/components/Button3D.tsx) so web and app feel like one product.
 * - Motion: screens enter with a short ease-out slide, presses scale to .97; nothing loops except the mascot.
 */
:root {
  --bg: #ffffff;
  --surface: #f5f5f5;
  --border: #e5e5e5;
  --text: #3c3c3c;
  --muted: #777777;
  --faint: #afafaf;
  --accent: #58cc02;
  --accent-edge: #58a700;
  --accent-ink: #3f8f00; /* green text on white, 4.1:1 */
  --accent-soft: #effbe5;
  --radius: 16px;
  --ease: cubic-bezier(.23, 1, .32, 1);
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Hiragino Maru Gothic ProN', 'Hiragino Sans', 'Noto Sans JP', 'Yu Gothic', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  word-break: auto-phrase; /* break Japanese between phrases, not mid-word */
}
h1, h2, h3, .lead, .fine { text-wrap: balance; }
.i { flex: none; display: block; }
.num { font-variant-numeric: tabular-nums; }

.app { max-width: 480px; margin: 0 auto; min-height: 100dvh; display: flex; flex-direction: column; padding: 0 20px; }

/* ---- header: round back button + thin progress ---- */
.topbar { display: flex; align-items: center; gap: 14px; height: 64px; flex: none; }
.back {
  width: 40px; height: 40px; border-radius: 50%; border: 0; background: var(--surface); color: var(--text);
  display: grid; place-items: center; cursor: pointer; flex: none; transition: transform .12s var(--ease);
}
.back:active { transform: scale(.92); }
.progress { flex: 1; height: 6px; border-radius: 999px; background: var(--border); overflow: hidden; }
.progress > i { display: block; height: 100%; border-radius: 999px; background: var(--accent); transition: width .4s var(--ease); }

.screen { flex: 1; display: flex; flex-direction: column; animation: enter .28s var(--ease) both; }
.screen.center { justify-content: center; text-align: center; }
.grow { flex: 1; min-height: 16px; }
.bottom {
  position: sticky; bottom: 0; display: grid; gap: 10px; margin: 0 -20px; padding: 14px 20px calc(18px + env(safe-area-inset-bottom));
  background: linear-gradient(to top, var(--bg) 70%, rgba(255, 255, 255, 0));
}

/* On the long paywall the button bar sits over scrolling content, so give it a solid edge. */
.paywall .bottom { background: var(--bg); box-shadow: 0 -1px 0 var(--border); padding-top: 12px; }
.paywall .plans { margin-top: 20px; }

/* ---- type ramp: one display size per screen ---- */
h1 { font-size: 27px; line-height: 1.35; font-weight: 800; margin: 4px 0 8px; letter-spacing: .01em; }
h2 { font-size: 21px; line-height: 1.4; font-weight: 800; margin: 0 0 8px; }
h3 { font-size: 16px; line-height: 1.45; font-weight: 700; margin: 0; }
p { margin: 0 0 12px; }
.lead { color: var(--muted); font-size: 15px; margin: 0 0 24px; }
.muted { color: var(--muted); }
.small { font-size: 13px; line-height: 1.6; color: var(--muted); }
.accent { color: var(--accent-ink); }

/* ---- buttons ---- */
.btn {
  display: block; width: 100%; border: 0; border-radius: var(--radius); padding: 15px 16px;
  font: inherit; font-size: 17px; font-weight: 800; letter-spacing: .04em; text-align: center; text-decoration: none;
  color: #fff; background: var(--accent); box-shadow: 0 4px 0 var(--accent-edge); cursor: pointer;
  transition: transform .08s ease-out, box-shadow .08s ease-out, background-color .2s;
}
.btn:active { transform: translateY(4px); box-shadow: 0 0 0 var(--accent-edge); }
.btn[disabled] { background: var(--border); color: var(--faint); box-shadow: 0 4px 0 #d4d4d4; cursor: default; transform: none; }
.btn.black { background: #111; box-shadow: 0 4px 0 #444; }
.link { background: none; border: 0; padding: 0; font: inherit; color: var(--accent-ink); font-weight: 700; cursor: pointer; text-decoration: none; }

/* ---- LP hero ---- */
.hero { text-align: center; padding-top: 20px; }
.hero .mascot { display: block; margin: 0 auto 8px; width: 148px; height: 148px; animation: bob 1.6s ease-in-out infinite alternate; }
.badge { align-self: center; display: inline-block; padding: 4px 14px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-ink); font-weight: 800; font-size: 13px; }
.hero h1 { font-size: 28px; margin: 12px 0 8px; }
.hero .features { margin-top: 12px; }

/* ---- mascot asks the question ---- */
.says { display: flex; align-items: center; gap: 12px; margin: 4px 0 20px; }
.says img { width: 64px; height: 64px; flex: none; animation: bob 1.6s ease-in-out infinite alternate; }
.says h1 { margin: 0; font-size: 23px; }

/* ---- question options ---- */
.options { display: grid; gap: 12px; }
.option {
  display: flex; align-items: center; gap: 12px; width: 100%; min-height: 60px; padding: 14px 18px; text-align: left;
  font: inherit; font-size: 16px; font-weight: 700; color: var(--text); background: var(--surface);
  border: 2px solid transparent; border-radius: var(--radius); cursor: pointer;
  animation: rise .32s var(--ease) both; transition: transform .12s var(--ease), background-color .15s, border-color .15s;
}
.option:active { transform: scale(.97); }
.option small { display: block; font-weight: 500; color: var(--muted); font-size: 13px; }
.option .tick { margin-left: auto; width: 24px; height: 24px; border-radius: 50%; border: 2px solid var(--border); display: grid; place-items: center; color: transparent; flex: none; }
.option.selected { background: var(--accent-soft); border-color: var(--accent); }
.option.selected .tick { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---- insight ---- */
.stat-card { border-radius: var(--radius); background: var(--surface); padding: 20px; }
.big-number { font-size: 56px; font-weight: 800; color: var(--accent-ink); line-height: 1.05; font-variant-numeric: tabular-nums; }
.bars { display: grid; gap: 10px; margin-top: 16px; }
.bar-row { display: grid; grid-template-columns: 76px 1fr 44px; align-items: center; gap: 10px; font-size: 14px; font-weight: 700; }
.bar-row span:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.bar { height: 14px; border-radius: 999px; background: #fff; overflow: hidden; }
.bar > i { display: block; height: 100%; border-radius: 999px; background: var(--accent); width: 0; transition: width .7s var(--ease); }

/* ---- comparison table ---- */
.compare { border-radius: var(--radius); background: var(--surface); padding: 6px 0; font-size: 14px; }
.compare .row { display: grid; grid-template-columns: 1fr 1fr; }
.compare .row > div { display: flex; gap: 8px; align-items: flex-start; padding: 12px 14px; line-height: 1.45; }
.compare .row > div:last-child { background: var(--accent-soft); font-weight: 700; }
.compare .head > div { font-weight: 800; font-size: 13px; padding-bottom: 6px; color: var(--muted); }
.compare .head > div:last-child { color: var(--accent-ink); border-radius: 12px 12px 0 0; }
.compare .row:last-child > div:last-child { border-radius: 0 0 12px 12px; }
.compare .no { color: var(--faint); margin-top: 1px; }
.compare .yes { color: var(--accent-ink); margin-top: 1px; }

/* ---- calculating ---- */
.calc-pct { font-size: 64px; font-weight: 800; line-height: 1; font-variant-numeric: tabular-nums; margin-bottom: 12px; }
.calc-bar { height: 8px; border-radius: 999px; background: var(--border); overflow: hidden; margin: 20px 0 28px; }
.calc-bar > i { display: block; height: 100%; width: 0; background: var(--accent); border-radius: 999px; }
.checklist { list-style: none; padding: 0; margin: 0; text-align: left; display: grid; gap: 12px; }
.checklist li { display: flex; gap: 12px; align-items: center; font-weight: 700; color: var(--faint); transition: color .3s; }
.checklist li .tick { width: 24px; height: 24px; border-radius: 50%; border: 2px solid var(--border); display: grid; place-items: center; color: transparent; transition: all .25s var(--ease); }
.checklist li.done { color: var(--text); }
.checklist li.done .tick { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---- plan ready ---- */
.result-pill { align-self: center; padding: 8px 16px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-ink); font-weight: 800; margin: 4px 0 20px; }
.summary { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; text-align: left; }
.summary .cell { border-radius: var(--radius); background: var(--surface); padding: 14px 16px; }
.summary .cell.wide { grid-column: span 2; display: flex; gap: 12px; align-items: center; }
.summary .label { font-size: 12px; font-weight: 700; color: var(--muted); }
.summary .value { font-size: 18px; font-weight: 800; font-variant-numeric: tabular-nums; }
.summary .wide .value { font-size: 16px; }
.summary .ic { width: 40px; height: 40px; border-radius: 50%; background: #fff; color: var(--accent-ink); display: grid; place-items: center; flex: none; }
.pop { animation: pop .45s var(--ease) both; }

/* ---- timeline (paywall + success) ---- */
.timeline { list-style: none; margin: 4px 0 20px; padding: 0; display: grid; }
.timeline li { position: relative; display: grid; grid-template-columns: 40px 1fr; gap: 14px; padding-bottom: 16px; }
.timeline li:last-child { padding-bottom: 0; }
.timeline li:not(:last-child)::before { content: ''; position: absolute; left: 18px; top: 40px; bottom: 0; width: 4px; border-radius: 2px; background: var(--accent-soft); }
.timeline .dot { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--accent); color: #fff; font-weight: 800; }
.timeline li:not(:first-child) .dot { background: var(--accent-soft); color: var(--accent-ink); }
.timeline h3 { margin-top: 1px; }
.timeline p { margin: 9px 0 0; font-size: 14px; color: var(--muted); line-height: 1.5; }
.timeline .action { margin-top: 10px; display: grid; gap: 10px; }

/* ---- plan cards ---- */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 14px; }
.plan {
  position: relative; display: flex; flex-direction: column; align-items: flex-start; gap: 2px; padding: 16px 14px 14px;
  border: 2px solid var(--border); border-radius: var(--radius); background: #fff; cursor: pointer;
  font: inherit; text-align: left; color: var(--text); transition: transform .12s var(--ease), border-color .15s, background-color .15s;
}
.plan:active { transform: scale(.97); }
.plan.selected { border-color: var(--accent); background: var(--accent-soft); }
.plan .name { font-size: 14px; font-weight: 700; color: var(--muted); }
.plan .price { font-size: 22px; font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1.3; }
.plan .price small { font-size: 13px; font-weight: 700; }
.plan .sub { font-size: 12px; font-weight: 700; color: var(--muted); min-height: 1.5em; }
.plan.selected .sub { color: var(--accent-ink); }
.plan .tick { position: absolute; top: 12px; right: 12px; width: 22px; height: 22px; border-radius: 50%; border: 2px solid var(--border); display: grid; place-items: center; color: transparent; }
.plan.selected .tick { background: var(--accent); border-color: var(--accent); color: #fff; }
.plan-badge {
  position: absolute; top: -12px; left: 12px; padding: 2px 10px; border-radius: 999px; background: var(--accent);
  color: #fff; font-size: 12px; font-weight: 800; letter-spacing: .02em;
}
.reassure { display: flex; gap: 8px; align-items: center; justify-content: center; font-weight: 700; font-size: 15px; margin-bottom: 14px; }
.reassure .i { color: var(--accent-ink); }
.fine { text-align: center; margin: 12px 0 0; }

/* ---- below the fold ---- */
.section-title { font-size: 13px; font-weight: 800; color: var(--muted); letter-spacing: .06em; margin: 36px 0 12px; }
.features { display: grid; gap: 10px; }
.feature { display: flex; gap: 12px; align-items: flex-start; border-radius: var(--radius); background: var(--surface); padding: 14px; }
.feature .ic { width: 36px; height: 36px; border-radius: 50%; background: #fff; color: var(--accent-ink); display: grid; place-items: center; flex: none; }
.feature p { margin: 2px 0 0; font-size: 13px; color: var(--muted); line-height: 1.55; }
details { border-bottom: 1px solid var(--border); padding: 14px 0; }
summary { font-weight: 700; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; color: var(--faint); font-weight: 800; }
details[open] summary::after { content: '−'; }
details p { margin: 8px 0 0; color: var(--muted); font-size: 14px; }

.footer { display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; padding: 20px 0 28px; font-size: 12px; }
.footer a { color: var(--muted); }
.notice { border-radius: 12px; padding: 12px 14px; background: #fff4e0; color: #8a5300; font-size: 14px; font-weight: 700; margin: 0 0 12px; }
.hidden { display: none !important; }


.confetti { position: fixed; inset: 0; pointer-events: none; overflow: hidden; }
.confetti i { position: absolute; top: -12px; width: 8px; height: 14px; border-radius: 2px; animation: fall 2.4s ease-in forwards; }
@keyframes fall { to { transform: translateY(110vh) rotate(720deg); } }

@keyframes enter { from { opacity: 0; transform: translateX(24px); } to { opacity: 1; transform: none; } }
@keyframes rise { from { opacity: 0; transform: translateY(8px) scale(.98); } to { opacity: 1; transform: none; } }
@keyframes pop { from { opacity: 0; transform: scale(.95); } to { opacity: 1; transform: none; } }
@keyframes bob { from { transform: translateY(0) rotate(-3deg); } to { transform: translateY(-5px) rotate(3deg); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0s !important; animation-iteration-count: 1 !important; transition: none !important; }
}