/* Clauk LP — 暖色系の類似色配色（タビー子猫のアンバー〜ブラウン） */
:root {
  --cream:      #FBF4E9;
  --cream-2:    #F5E8D4;
  --card:       #FFFFFF;
  --ink:        #3B2A1B;
  --ink-soft:   #6E5740;
  --ink-faint:  #A7937B;
  --amber:      #D7873A;
  --amber-deep: #B96A1E;
  --amber-soft: #EFCB95;
  --dark:       #2A201A;
  --dark-2:     #34281F;
  --line:       #EADCC6;
  --shadow:     0 18px 40px -18px rgba(80, 50, 20, .35);
  --shadow-sm:  0 6px 18px -10px rgba(80, 50, 20, .30);
  --radius:     18px;
  --maxw:       1080px;
  --font: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
          "Noto Sans JP", "Yu Gothic", Meiryo, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--amber-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.3; letter-spacing: .01em; }
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--amber-deep);
  background: var(--cream-2); border: 1px solid var(--line);
  padding: 6px 14px; border-radius: 999px;
}

/* ── スプライト animation ─────────────────────────────────── */
/* hatch-pet 規格: 8列×9行 / 1セル 192×208。--fw/--ch でセル表示サイズを指定 */
.sprite {
  --fw: 192px; --ch: 208px; --row: 0;
  width: var(--fw); height: var(--ch);
  background-image: url("assets/spritesheet.webp");
  background-repeat: no-repeat;
  background-size: calc(8 * var(--fw)) calc(9 * var(--ch));
  background-position: 0 calc(-1 * var(--row) * var(--ch));
  image-rendering: auto;
}
@keyframes play4 { from { background-position-x: 0; } to { background-position-x: calc(-4 * var(--fw)); } }
@keyframes play5 { from { background-position-x: 0; } to { background-position-x: calc(-5 * var(--fw)); } }
@keyframes play6 { from { background-position-x: 0; } to { background-position-x: calc(-6 * var(--fw)); } }
@keyframes play8 { from { background-position-x: 0; } to { background-position-x: calc(-8 * var(--fw)); } }
.s-idle    { --row: 0; animation: play6 1.15s steps(6) infinite; }
.s-run-r   { --row: 1; animation: play8 .92s  steps(8) infinite; }
.s-run-l   { --row: 2; animation: play8 .92s  steps(8) infinite; }
.s-wave    { --row: 3; animation: play4 .60s  steps(4) infinite; }
.s-jump    { --row: 4; animation: play5 .80s  steps(5) infinite; }
.s-failed  { --row: 5; animation: play8 1.1s  steps(8) infinite; }
.s-waiting { --row: 6; animation: play6 1.0s  steps(6) infinite; }
.s-running { --row: 7; animation: play6 .78s  steps(6) infinite; }
.s-review  { --row: 8; animation: play6 1.0s  steps(6) infinite; }

/* ── nav ─────────────────────────────────────────────────── */
header.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251, 244, 233, .82);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 16px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--ink); }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.nav nav { margin-left: auto; display: flex; align-items: center; gap: 22px; }
.nav nav a.link { color: var(--ink-soft); font-weight: 600; font-size: .95rem; }
.nav nav a.link:hover { color: var(--ink); text-decoration: none; }

.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  font-weight: 700; font-size: .98rem; padding: 11px 20px; border-radius: 12px;
  border: 1px solid transparent; cursor: pointer; transition: transform .12s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--amber); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--amber-deep); text-decoration: none; transform: translateY(-1px); }
.btn-ghost { background: var(--card); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--amber-soft); text-decoration: none; transform: translateY(-1px); }
.btn-sm { padding: 8px 16px; font-size: .9rem; }

/* ── hero ────────────────────────────────────────────────── */
.hero { position: relative; overflow: hidden; padding: 72px 0 40px; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(1100px 460px at 78% -8%, rgba(239, 203, 149, .55), transparent 60%),
    radial-gradient(700px 380px at 8% 12%, rgba(247, 232, 212, .8), transparent 60%);
}
.hero .wrap { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(2.1rem, 4.6vw, 3.3rem); margin: 18px 0 14px; letter-spacing: 0; }
.hero h1 .hl { color: var(--amber-deep); }
.hero p.lead { font-size: 1.16rem; color: var(--ink-soft); margin: 0 0 26px; max-width: 33ch; }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero .meta { margin-top: 18px; display: flex; gap: 10px 18px; flex-wrap: wrap; color: var(--ink-faint); font-size: .9rem; font-weight: 600; }
.hero .meta b { color: var(--ink-soft); }

/* hero stage: 机の隅に座る猫 + 吹き出し */
.stage {
  position: relative; aspect-ratio: 4 / 3.4; border-radius: 24px;
  background: linear-gradient(160deg, #fffaf2, #f3e6cf);
  border: 1px solid var(--line); box-shadow: var(--shadow); overflow: hidden;
}
.stage .desktop-bar { position: absolute; inset: 0 0 auto 0; height: 38px; display: flex; align-items: center; gap: 7px; padding: 0 14px; background: rgba(255,255,255,.6); border-bottom: 1px solid var(--line); }
.stage .dot { width: 11px; height: 11px; border-radius: 50%; }
.stage .dot.r { background: #f0a59a; } .stage .dot.y { background: #f1cd86; } .stage .dot.g { background: #a9d3a0; }
.stage .code-hint { margin-left: 10px; font-size: .78rem; color: var(--ink-faint); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.stage .pet-corner { position: absolute; right: 26px; bottom: 14px; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.bubble {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 9px 13px; box-shadow: var(--shadow-sm); max-width: 200px; text-align: left;
}
.bubble .status { font-size: .72rem; font-weight: 800; color: var(--amber-deep); letter-spacing: .04em; }
.bubble .body { font-size: .82rem; color: var(--ink); line-height: 1.45; }
.bubble::after { content: ""; position: absolute; left: 30px; bottom: -8px; width: 14px; height: 14px; background: #fff; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transform: rotate(45deg); }

/* ── sections ────────────────────────────────────────────── */
section { padding: 76px 0; }
section.alt { background: var(--cream-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sec-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.sec-head h2 { font-size: clamp(1.7rem, 3.2vw, 2.3rem); margin: 14px 0 12px; }
.sec-head p { color: var(--ink-soft); font-size: 1.05rem; margin: 0; }

/* features */
.grid { display: grid; gap: 20px; }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.feature {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; box-shadow: var(--shadow-sm);
}
.feature .ic { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 1.5rem; background: var(--cream-2); border: 1px solid var(--line); margin-bottom: 14px; }
.feature h3 { margin: 0 0 8px; font-size: 1.18rem; }
.feature p { margin: 0; color: var(--ink-soft); font-size: .98rem; }

/* states showcase */
.states { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.state-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 16px 16px; text-align: center; box-shadow: var(--shadow-sm);
}
.state-card .frame {
  height: 150px; display: grid; place-items: center;
  background: linear-gradient(160deg, #fffaf2, #f4e8d2); border-radius: 12px; border: 1px solid var(--line);
  overflow: hidden; margin-bottom: 12px;
}
.state-card .tag { font-weight: 800; font-size: 1.02rem; }
.state-card .sub { color: var(--ink-faint); font-size: .85rem; }

/* how it works */
.flow { display: grid; grid-template-columns: 1fr; gap: 14px; max-width: 720px; margin: 0 auto; }
.flow-step {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; box-shadow: var(--shadow-sm);
}
.flow-step .n { flex: 0 0 32px; height: 32px; border-radius: 50%; background: var(--amber); color: #fff; font-weight: 800; display: grid; place-items: center; }
.flow-step h3 { margin: 2px 0 4px; font-size: 1.05rem; }
.flow-step p { margin: 0; color: var(--ink-soft); font-size: .95rem; }
.flow-step code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .86em; background: var(--cream-2); padding: 1px 6px; border-radius: 6px; border: 1px solid var(--line); }
.flow-arrow { text-align: center; color: var(--amber-soft); font-size: 1.2rem; line-height: 1; }

/* note CTA（仕組みの詳細は note へ誘導） */
.note-cta {
  display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
  max-width: 820px; margin: 0 auto;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 32px; box-shadow: var(--shadow);
}
.note-cta-text { flex: 1 1 360px; }
.note-cta-text h3 { margin: 0 0 8px; font-size: 1.2rem; }
.note-cta-text p { margin: 0; color: var(--ink-soft); font-size: .96rem; }
.note-cta .btn { flex: 0 0 auto; }
@media (max-width: 560px) { .note-cta .btn { width: 100%; } }

/* pricing / get */
.get { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; max-width: 820px; margin: 0 auto; }
.price-card {
  position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; box-shadow: var(--shadow); display: flex; flex-direction: column;
}
.price-card.feat { border-color: var(--amber-soft); }
.price-card .kicker { font-weight: 800; color: var(--amber-deep); font-size: .9rem; letter-spacing: .04em; }
.price-card h3 { margin: 8px 0 4px; font-size: 1.4rem; }
.price-card .price { font-size: 2rem; font-weight: 800; margin: 6px 0 2px; }
.price-card .price small { font-size: .9rem; font-weight: 600; color: var(--ink-faint); }
.price-card ul { list-style: none; padding: 0; margin: 14px 0 22px; display: grid; gap: 9px; }
.price-card li { padding-left: 26px; position: relative; color: var(--ink-soft); font-size: .96rem; }
.price-card li::before { content: "🐾"; position: absolute; left: 0; top: 0; font-size: .9rem; }
.price-card .btn { margin-top: auto; width: 100%; }

/* 最安（note シェア割）カードの強調 */
.price-card.best { border-color: var(--amber); box-shadow: var(--shadow); }
.price-card.best::before {
  content: "シェアで半額";
  position: absolute; top: 16px; right: -34px; transform: rotate(45deg);
  background: var(--amber-deep); color: #fff; font-weight: 800; font-size: .76rem;
  letter-spacing: .04em; padding: 5px 40px; box-shadow: var(--shadow-sm);
}
.price .was { color: var(--ink-faint); font-weight: 700; font-size: 1.3rem; text-decoration: line-through; margin-right: 8px; }
.price .now { color: var(--amber-deep); }

/* 割引バッジ（インライン） */
.deal-badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-weight: 800; font-size: .82rem; color: #fff; background: var(--amber-deep);
  padding: 4px 11px; border-radius: 999px; box-shadow: var(--shadow-sm); white-space: nowrap;
}
.deal-badge::before { content: "🏷️"; font-size: .9em; }
.deal-note { color: var(--ink-soft); font-size: .85rem; margin: 10px 0 0; }
.deal-note b { color: var(--amber-deep); }

/* changelog */
.changelog { max-width: 820px; margin: 30px auto 0; }
.changelog-bar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  justify-content: center; text-align: center; margin-bottom: 14px;
}
.ver-badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-weight: 800; font-size: .92rem; color: #fff; background: var(--amber);
  padding: 7px 16px; border-radius: 999px; box-shadow: var(--shadow-sm);
}
.ver-badge::before { content: "✨"; font-size: .9em; }
.changelog-hint { color: var(--ink-soft); font-size: .92rem; }
.changelog-hint b { color: var(--ink); }
.changelog-details {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 2px 22px; box-shadow: var(--shadow-sm);
}
.changelog-details summary {
  cursor: pointer; font-weight: 700; padding: 15px 0; list-style: none;
  display: flex; justify-content: space-between; align-items: center; color: var(--ink);
}
.changelog-details summary::-webkit-details-marker { display: none; }
.changelog-details summary::after { content: "+"; color: var(--amber-deep); font-size: 1.4rem; font-weight: 400; transition: transform .2s; }
.changelog-details[open] summary::after { transform: rotate(45deg); }
.release-list { list-style: none; padding: 0; margin: 4px 0 18px; display: grid; gap: 18px; }
.release-list > li { border-left: 2px solid var(--amber-soft); padding-left: 16px; }
.release-head { display: flex; align-items: baseline; gap: 12px; margin-bottom: 6px; }
.release-ver { font-weight: 800; color: var(--ink); }
.release-date { font-size: .82rem; color: var(--ink-faint); }
.release-list ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 5px; }
.release-list ul li { position: relative; padding-left: 18px; color: var(--ink-soft); font-size: .94rem; }
.release-list ul li::before { content: "·"; position: absolute; left: 4px; color: var(--amber-deep); font-weight: 800; }

/* faq */
.faq { max-width: 760px; margin: 0 auto; }
details.qa { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 4px 20px; margin-bottom: 12px; box-shadow: var(--shadow-sm); }
details.qa summary { cursor: pointer; font-weight: 700; padding: 16px 0; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
details.qa summary::-webkit-details-marker { display: none; }
details.qa summary::after { content: "+"; color: var(--amber-deep); font-size: 1.4rem; font-weight: 400; transition: transform .2s; }
details.qa[open] summary::after { transform: rotate(45deg); }
details.qa p { margin: 0 0 18px; color: var(--ink-soft); font-size: .96rem; }

/* footer */
footer.site { background: var(--dark); color: #e7d9c6; padding: 54px 0 36px; }
footer.site a { color: var(--amber-soft); }
footer.site .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; margin-bottom: 30px; }
footer.site .brand { color: #fff; }
footer.site p { color: #c8b69f; font-size: .92rem; margin: 10px 0 0; max-width: 38ch; }
footer.site h4 { font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; color: #b89e80; margin: 0 0 12px; }
footer.site ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
footer.site .legal { border-top: 1px solid #463629; padding-top: 22px; font-size: .82rem; color: #a98f72; }
footer.site .legal p { color: #a98f72; max-width: none; }

/* reveal */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* responsive */
@media (max-width: 880px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero .stage { order: -1; max-width: 460px; margin: 0 auto; width: 100%; }
  .cols-3, .states { grid-template-columns: repeat(2, 1fr); }
  .get { grid-template-columns: 1fr; }
  footer.site .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .nav nav a.link { display: none; }
  .cols-2, .cols-3, .states { grid-template-columns: 1fr; }
  footer.site .cols { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
}
@media (prefers-reduced-motion: reduce) {
  .sprite { animation: none !important; }
  .reveal { transition: none; opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}