@charset "UTF-8";
/* UCHINOKO — stylesheet (index-v2.html から読み込み) */

/* =========================================================
   UCHINOKO / Design tokens
   モチーフ：観察記録のノートと蛍光マーカー
   ========================================================= */
:root{
  --ink:        #22314A;   /* 本文（長文を読ませるため青ではなく濃紺グレー） */
  --ink-soft:   #5A6B85;
  --brand:      #4A6FB5;   /* ブランド青 */
  --brand-deep: #2F4C86;
  --brand-tint: #E8EFFB;
  --teal:       #3FB3AF;   /* サイドのティール */
  --teal-tint:  #E4F6F5;
  --accent:     #E2762F;   /* CTAオレンジ */
  --accent-deep:#C4642A;
  --accent-tint:#FDECDD;
  --marker:     #FFE28A;   /* 蛍光マーカー */
  --note:       #FFFCF3;   /* 付箋の紙色 */
  --bg:         #F3F7FC;
  --card:       #FFFFFF;
  --line:       #E2E9F4;

  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;

  --sh-sm: 0 2px 8px rgba(34,49,74,.06);
  --sh-md: 0 10px 28px rgba(34,49,74,.09);
  --sh-lg: 0 24px 56px rgba(34,49,74,.14);

  --rail: 264px;
  --measure: 48rem;

  --font: 'M PLUS Rounded 1c', "Hiragino Maru Gothic ProN", "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  --font-ui: ui-sans-serif, "Helvetica Neue", Arial, sans-serif;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.95;              /* 日本語の長文が読みやすい行間 */
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-spacing-trim: trim-start;
}
img{ max-width:100%; height:auto; }
a{ color:var(--brand-deep); text-underline-offset:.25em; }

/* キーボード操作でフォーカスが必ず見える */
:focus-visible{
  outline:3px solid var(--accent);
  outline-offset:3px;
  border-radius:6px;
}

.skip-link{
  position:absolute; left:-9999px; top:0; z-index:100;
  background:var(--brand-deep); color:#fff; padding:.7rem 1.2rem; border-radius:0 0 12px 0;
}
.skip-link:focus{ left:0; }

/* 言語切替：ルートの data-lang で一括制御 */
html[data-lang="ja"] .lang-en{ display:none !important; }
html[data-lang="en"] .lang-ja{ display:none !important; }
html[data-lang="en"] body{ line-height:1.75; }

/* =========================================================
   Layout
   ========================================================= */
.app{ display:flex; min-height:100vh; }

/* ---- サイドレール ---- */
.rail{
  width:var(--rail);
  flex:0 0 var(--rail);
  position:fixed; inset:0 auto 0 0;
  padding:1.6rem 1.1rem 1.2rem;
  background:linear-gradient(190deg, var(--teal) 0%, #6FCBC7 42%, #FFFFFF 100%);
  display:flex; flex-direction:column; gap:.4rem;
  overflow-y:auto;
  z-index:20;
}
.rail__logo{ text-align:center; margin-bottom:1.1rem; }
.rail__logo img{ max-width:132px; filter:drop-shadow(0 3px 6px rgba(0,0,0,.12)); }
.rail__heading{
  font-family:var(--font-ui);
  font-size:.7rem; font-weight:700; letter-spacing:.22em; text-transform:uppercase;
  color:rgba(255,255,255,.92);
  margin:0 0 .6rem .3rem;
}
.nav{ display:flex; flex-direction:column; gap:.45rem; }
.nav__item{
  position:relative;
  width:100%; text-align:left;
  font-family:var(--font); font-size:.95rem; font-weight:500;
  color:var(--brand-deep);
  background:rgba(255,255,255,.94);
  border:1px solid rgba(255,255,255,.6);
  border-radius:12px;
  padding:.7rem .85rem .7rem 1.05rem;
  cursor:pointer;
  box-shadow:var(--sh-sm);
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.nav__item:hover{ transform:translateX(3px); box-shadow:var(--sh-md); background:#fff; }
.nav__item::before{
  content:""; position:absolute; left:.45rem; top:50%; translate:0 -50%;
  width:4px; height:0; border-radius:99px; background:var(--accent);
  transition:height .2s ease;
}
.nav__item[aria-current="page"]{
  background:#fff; font-weight:700; color:var(--brand-deep);
  box-shadow:var(--sh-md);
}
.nav__item[aria-current="page"]::before{ height:56%; }

.rail__cta{ margin-top:1.2rem; text-align:center; }
.rail__note{
  margin-top:auto; padding-top:1.4rem;
  font-size:.72rem; line-height:1.7; color:var(--ink-soft); text-align:center;
}

/* ---- メイン ---- */
.main{
  margin-left:var(--rail);
  width:calc(100% - var(--rail));
  display:flex; flex-direction:column; min-height:100vh;
}

.topbar{
  position:sticky; top:0; z-index:15;
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
  padding:.85rem 1.6rem;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.brandmark{
  display:flex; align-items:baseline; gap:.6rem;
  margin:0; font-size:1.25rem; font-weight:800; letter-spacing:.04em; color:var(--brand-deep);
}
.brandmark small{
  font-family:var(--font-ui); font-size:.66rem; font-weight:600; letter-spacing:.14em;
  color:var(--ink-soft); text-transform:uppercase;
}

/* 言語切替：セグメント型 */
.langswitch{
  display:inline-flex; padding:3px; gap:2px;
  background:var(--brand-tint); border-radius:99px;
}
.langswitch button{
  font-family:var(--font-ui); font-size:.78rem; font-weight:700; letter-spacing:.04em;
  color:var(--brand-deep); background:transparent; border:0; cursor:pointer;
  padding:.35rem .85rem; border-radius:99px;
  transition:background .18s ease, color .18s ease;
}
.langswitch button[aria-pressed="true"]{ background:#fff; color:var(--brand-deep); box-shadow:var(--sh-sm); }
.langswitch button:hover{ color:var(--accent-deep); }

.canvas{ flex:1; padding:0 1.6rem 5rem; }

/* セクション切替（CSSで初期状態を決めて読み込み時のちらつきを防ぐ） */
.section{ display:none; }
.section.is-active{ display:block; animation:sectionIn .38s ease both; }
@keyframes sectionIn{ from{ opacity:0; transform:translateY(10px);} to{ opacity:1; transform:none;} }

.wrap{ max-width:var(--measure); margin:0 auto; }

/* =========================================================
   Hero（このページの主役：ABC記録カード）
   ========================================================= */
.hero{
  position:relative; overflow:hidden;
  max-width:980px; margin:1.6rem auto 2.4rem;
  padding:3rem 2.4rem 2.6rem;
  border-radius:var(--r-xl);
  background:
    radial-gradient(120% 90% at 88% -10%, var(--teal-tint) 0%, transparent 55%),
    radial-gradient(90% 80% at 0% 100%, #FFF6E4 0%, transparent 60%),
    var(--card);
  box-shadow:var(--sh-lg);
}
/* 方眼ノートのうっすらした罫 */
.hero::after{
  content:""; position:absolute; inset:0; pointer-events:none; opacity:.5;
  background-image:linear-gradient(var(--line) 1px, transparent 1px);
  background-size:100% 34px;
  -webkit-mask-image:linear-gradient(180deg, transparent, #000 40%, transparent);
          mask-image:linear-gradient(180deg, transparent, #000 40%, transparent);
}
.hero > *{ position:relative; z-index:1; }

.eyebrow{
  display:inline-flex; align-items:center; gap:.5rem;
  font-family:var(--font-ui); font-size:.72rem; font-weight:700; letter-spacing:.16em; text-transform:uppercase;
  color:var(--teal); background:var(--teal-tint);
  padding:.35rem .8rem; border-radius:99px; margin-bottom:1rem;
}
.hero h1{
  margin:0 0 1rem;
  font-size:clamp(1.6rem, 3.4vw, 2.5rem);
  font-weight:800; line-height:1.5; letter-spacing:.01em;
  color:var(--brand-deep);
}
.hero .lede{
  margin:0; max-width:34rem;
  font-size:clamp(.98rem, 1.4vw, 1.08rem); color:var(--ink-soft);
}

/* 蛍光マーカー */
.mark{
  background:linear-gradient(transparent 62%, var(--marker) 62%);
  padding:0 .1em;
}

/* ---- ヒーローのイラスト ---- */
.hero__top{
  display:grid;
  grid-template-columns:minmax(0,1fr) 200px;
  gap:1.6rem;
  align-items:center;
  margin-bottom:1.6rem;
}
.hero__intro > :last-child{ margin-bottom:0; }
.hero__art{
  margin:0; padding:.6rem;
  display:grid; place-items:center;
  /* 透過PNGを受け止める、やわらかい円の下地 */
  background:radial-gradient(circle at 50% 54%, var(--teal-tint) 0 60%, rgba(228,246,245,0) 62%);
  animation:floaty 6s ease-in-out infinite;
}
.hero__art img{ width:100%; max-width:190px; }
@keyframes floaty{
  0%,100%{ transform:translateY(0); }
  50%    { transform:translateY(-7px); }
}

/* ---- セクション見出し横のイラスト ---- */
.sec-head{
  display:flex; align-items:center; justify-content:space-between; gap:1.2rem;
  margin-bottom:1.2rem;
}
.sec-head .sec{ margin:0; }
.sec-art{
  flex:0 0 auto; width:104px; height:auto;
  padding:.4rem;
  background:radial-gradient(circle at 50% 55%, var(--note) 0 62%, rgba(255,252,243,0) 64%);
}

/* ---- 署名要素：ABCスリップ ---- */
.slips{
  display:grid; gap:.7rem;
  grid-template-columns:repeat(3, 1fr);
  align-items:stretch;
  margin:0 0 1.2rem;
}
.slip{
  position:relative;
  background:var(--note);
  border:1px solid #F0E4C8;
  border-radius:var(--r-md);
  padding:1rem .95rem .95rem;
  box-shadow:var(--sh-sm);
  transform:rotate(var(--tilt, 0deg));
  animation:slipIn .5s cubic-bezier(.2,.7,.3,1) both;
}
.slip:nth-child(1){ --tilt:-1.1deg; animation-delay:.05s; }
.slip:nth-child(2){ --tilt:.6deg;  animation-delay:.18s; }
.slip:nth-child(3){ --tilt:-.5deg; animation-delay:.31s; }
@keyframes slipIn{ from{ opacity:0; transform:translateY(14px) rotate(0);} to{ opacity:1; } }
.slip__tag{
  display:inline-flex; align-items:center; justify-content:center;
  width:1.9rem; height:1.9rem; border-radius:8px;
  font-family:var(--font-ui); font-weight:800; font-size:.95rem;
  color:#fff; background:var(--brand);
}
.slip:nth-child(2) .slip__tag{ background:var(--teal); }
.slip:nth-child(3) .slip__tag{ background:var(--accent); }
.slip__label{
  font-size:.78rem; font-weight:700; color:var(--ink-soft); margin-left:.55rem; letter-spacing:.06em;
}
.slip p{ margin:.55rem 0 0; font-size:.92rem; line-height:1.75; }

.ai-note{
  display:flex; gap:.8rem; align-items:flex-start;
  background:var(--brand-tint);
  border-radius:var(--r-md);
  padding:1rem 1.1rem;
  font-size:.93rem;
  animation:slipIn .5s cubic-bezier(.2,.7,.3,1) .45s both;
}
.ai-note__badge{
  flex:0 0 auto;
  font-family:var(--font-ui); font-size:.66rem; font-weight:800; letter-spacing:.12em;
  color:#fff; background:var(--brand-deep);
  padding:.3rem .55rem; border-radius:6px; margin-top:.2rem;
}
.ai-note p{ margin:0; }
.example-cap{
  font-size:.72rem; color:var(--ink-soft); margin:.6rem 0 1.6rem; text-align:right;
}

.hero__actions{ display:flex; flex-wrap:wrap; gap:.7rem; align-items:center; }

/* =========================================================
   Buttons
   ========================================================= */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5rem;
  min-height:44px;   /* タップ領域を確保 */
  font-family:var(--font); font-size:.95rem; font-weight:700;
  padding:.8rem 1.6rem;
  border-radius:99px; border:1px solid transparent;
  text-decoration:none; cursor:pointer;
  transition:transform .16s ease, box-shadow .16s ease, background .16s ease;
}
.btn--primary{
  color:#fff; background:var(--accent);
  box-shadow:0 6px 18px rgba(226,118,47,.32);
}
.btn--primary:hover{ background:var(--accent-deep); transform:translateY(-2px); box-shadow:0 10px 24px rgba(226,118,47,.38); }
.btn--ghost{
  color:var(--brand-deep); background:#fff; border-color:var(--line);
}
.btn--ghost:hover{ background:var(--brand-tint); transform:translateY(-2px); }
.btn--block{ width:100%; }
.btn__arrow{ transition:translate .16s ease; }
.btn:hover .btn__arrow{ translate:3px 0; }

.price-chip{
  font-size:.82rem; font-weight:700; color:var(--accent-deep);
  background:var(--accent-tint); padding:.4rem .8rem; border-radius:99px;
}

/* =========================================================
   Cards / blocks
   ========================================================= */
.card{
  background:var(--card);
  border-radius:var(--r-lg);
  padding:2rem 2.1rem;
  box-shadow:var(--sh-md);
  margin-bottom:1.6rem;
}

h2.sec{
  font-size:clamp(1.2rem, 2.2vw, 1.5rem); font-weight:800; line-height:1.6;
  color:var(--brand-deep); margin:0 0 1.2rem;
}
h3.sub{
  font-size:1.05rem; font-weight:700; color:var(--brand-deep);
  margin:2rem 0 .7rem;
  display:flex; align-items:center; gap:.55rem;
}
h3.sub::before{
  content:""; width:.55rem; height:.55rem; border-radius:3px; background:var(--teal); flex:0 0 auto;
}
p{ margin:0 0 1.1rem; }
.card > p:last-child{ margin-bottom:0; }

/* あるある（共感）チップ */
.pains{ display:grid; gap:.8rem; grid-template-columns:repeat(3,1fr); margin:0 0 1.4rem; }
.pain{
  background:var(--bg); border:1px dashed #CFDCEE; border-radius:var(--r-md);
  padding:1rem; font-size:.9rem; line-height:1.7; color:var(--ink);
}
.pain b{ display:block; font-size:.76rem; letter-spacing:.08em; color:var(--teal); margin-bottom:.35rem; }

/* 機能リスト */
.features{ display:grid; gap:.9rem; grid-template-columns:repeat(2,1fr); list-style:none; padding:0; margin:0; }
.features li{
  display:flex; gap:.8rem; align-items:flex-start;
  background:var(--bg); border-radius:var(--r-md); padding:1rem 1.1rem;
  font-size:.93rem; line-height:1.7;
}
.features svg{ flex:0 0 auto; margin-top:.15rem; }

/* ステップ（順序に意味があるので番号を使う） */
.steps{ list-style:none; padding:0; margin:0; counter-reset:step; }
.steps > li{
  position:relative; counter-increment:step;
  padding:0 0 1.8rem 3.4rem;
}
.steps > li::before{
  content:counter(step, decimal-leading-zero);
  position:absolute; left:0; top:.1rem;
  width:2.3rem; height:2.3rem; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-ui); font-size:.82rem; font-weight:800;
  color:var(--brand-deep); background:var(--brand-tint);
}
.steps > li::after{
  content:""; position:absolute; left:1.13rem; top:2.6rem; bottom:.3rem;
  width:2px; background:linear-gradient(var(--line), transparent);
}
.steps > li:last-child{ padding-bottom:0; }
.steps > li:last-child::after{ display:none; }
.steps h3{ margin:.15rem 0 .5rem; font-size:1.02rem; font-weight:700; color:var(--brand-deep); }
.steps p{ margin:0 0 .6rem; font-size:.94rem; }
.steps ul{ margin:.2rem 0 .8rem; padding-left:1.2rem; font-size:.92rem; }
.tip{
  background:var(--note); border-left:3px solid var(--marker);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:.7rem .9rem; font-size:.88rem; color:var(--ink-soft); margin:.4rem 0 0;
}

/* 補足ボックス */
.aside-box{
  background:var(--teal-tint); border-radius:var(--r-lg);
  padding:1.4rem 1.6rem; font-size:.93rem; margin-top:1.6rem;
}
.aside-box h3{ margin:0 0 .6rem; font-size:1rem; color:#1F7B78; }
.aside-box p{ margin:0; }

/* 規約アコーディオン */
.terms-tools{ display:flex; justify-content:flex-end; margin-bottom:.8rem; }
details.art{
  border:1px solid var(--line); border-radius:var(--r-md);
  background:#fff; margin-bottom:.6rem; overflow:hidden;
}
details.art[open]{ box-shadow:var(--sh-sm); }
details.art > summary{
  cursor:pointer; list-style:none;
  padding:.9rem 1.1rem; font-weight:700; font-size:.95rem; color:var(--brand-deep);
  display:flex; align-items:center; gap:.7rem;
}
details.art > summary::-webkit-details-marker{ display:none; }
details.art > summary::after{
  content:"+"; margin-left:auto; font-size:1.2rem; color:var(--ink-soft); line-height:1;
}
details.art[open] > summary::after{ content:"–"; }
details.art > summary:hover{ background:var(--bg); }
.art__body{ padding:0 1.1rem 1.1rem; font-size:.92rem; }
.art__body p{ margin:0 0 .7rem; }
.art__body ul{ margin:.3rem 0 .8rem; padding-left:1.3rem; }

/* お問い合わせ */
.contact-card{ text-align:center; }
.contact-card p{ color:var(--ink-soft); }

/* フッター */
.footer{
  border-top:1px solid var(--line);
  padding:1.6rem; text-align:center;
  font-size:.76rem; color:var(--ink-soft);
}

/* スクロール表示アニメーション */
.reveal{ opacity:0; transform:translateY(16px); transition:opacity .55s ease, transform .55s ease; }
.reveal.in{ opacity:1; transform:none; }

/* モバイル固定CTA */
.mobile-cta{ display:none; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 900px){
  .hero__top{ grid-template-columns:1fr; gap:.8rem; justify-items:center; text-align:center; }
  .hero__intro{ order:2; text-align:left; }
  .hero__art{ order:1; }
  .hero__art img{ max-width:130px; }
  .hero .lede{ max-width:none; }
  .slips{ grid-template-columns:1fr; }
  .pains{ grid-template-columns:1fr; }
  .features{ grid-template-columns:1fr; }
}

@media (max-width: 768px){
  .app{ display:block; }

  /* サイドレール → 上部の横スクロールタブ */
  .rail{
    position:static; width:100%; flex:none; height:auto;
    flex-direction:row; align-items:center; gap:.5rem;
    padding:.6rem .8rem;
    background:linear-gradient(100deg, var(--teal), #7FD2CF);
    overflow-x:auto; overflow-y:hidden;
    -webkit-overflow-scrolling:touch;
    position:sticky; top:0;
  }
  .rail__logo{ margin:0 .4rem 0 0; flex:0 0 auto; }
  .rail__logo img{ max-width:46px; }
  .rail__heading, .rail__cta, .rail__note{ display:none; }
  .nav{ flex-direction:row; gap:.4rem; }
  .nav__item{
    width:auto; white-space:nowrap; padding:.5rem .9rem; font-size:.85rem; border-radius:99px;
  }
  .nav__item::before{ display:none; }
  .nav__item[aria-current="page"]{ background:#fff; color:var(--accent-deep); }
  .nav__item:hover{ transform:none; }

  .main{ margin-left:0; width:100%; }
  /* レールがsticky担当。トップバーは重なるので固定解除 */
  .topbar{ position:static; padding:.7rem 1rem; }
  .brandmark{ font-size:1.05rem; }
  .brandmark small{ display:none; }

  .canvas{ padding:0 .9rem 6.5rem; }
  .hero{ margin:1rem auto 1.6rem; padding:2rem 1.3rem 1.8rem; border-radius:var(--r-lg); }
  .card{ padding:1.5rem 1.25rem; border-radius:var(--r-lg); }
  .steps > li{ padding-left:3rem; }

  /* 画面下に常時CTA */
  .mobile-cta{
    display:flex; align-items:center; justify-content:space-between; gap:.8rem;
    position:fixed; left:.7rem; right:.7rem; bottom:.7rem; z-index:30;
    background:rgba(255,255,255,.94);
    backdrop-filter:blur(10px);
    border:1px solid var(--line);
    border-radius:99px; padding:.5rem .5rem .5rem 1.1rem;
    box-shadow:var(--sh-lg);
    font-size:.82rem; font-weight:700; color:var(--brand-deep);
  }
  .mobile-cta .btn{ padding:.7rem 1.2rem; font-size:.88rem; min-height:44px; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; transition-duration:.001ms !important; }
  .reveal{ opacity:1; transform:none; }
}

/* =========================================================
   Print — 利用規約を紙に出す前提のスタイル
   ========================================================= */
@media print{
  .rail, .topbar, .mobile-cta, .skip-link,
  .hero__actions, .terms-tools, .btn, .footer,
  .hero__art, .sec-art{ display:none !important; }
  body{ background:#fff; color:#000; font-size:10.5pt; line-height:1.7; }
  .main{ margin-left:0; width:100%; }
  .canvas{ padding:0; }
  .card{ box-shadow:none; border-radius:0; padding:0; margin:0; }
  .section{ display:block !important; }          /* 全セクションを紙に出す */
  details.art{ border:0; border-bottom:1px solid #999; border-radius:0; }
  details.art > summary::after{ content:""; }
  .art__body{ padding:0 0 .6rem; }   /* 開閉状態は beforeprint で JS が開く */
  a[href^="http"]::after{ content:" (" attr(href) ")"; font-size:8pt; color:#555; }
}
/* =========================================================
   Small phones — 360〜430px 帯の詰め
   ========================================================= */
@media (max-width: 430px){
  .hero{ padding:1.6rem 1rem 1.5rem; }
  .hero__art img{ max-width:104px; }
  .sec-head{ gap:.8rem; }
  .sec-art{ width:72px; }
  .hero h1{ font-size:1.35rem; line-height:1.6; }
  .card{ padding:1.25rem 1rem; }
  .slip{ transform:none; }                        /* 狭幅では傾けない */
  .steps > li{ padding-left:2.7rem; }
  .steps > li::before{ width:2rem; height:2rem; font-size:.75rem; }
  .steps > li::after{ left:.97rem; }
  .example-cap{ text-align:left; }
  .hero__actions .btn{ width:100%; }
  .price-chip{ display:inline-block; }
}