/* =========================================================
   mono radio — brand site
   Palette derived from the app icon (beige) + in-app accent (terracotta)
   ========================================================= */
@import url('https://fonts.googleapis.com/css2?family=Quicksand:wght@500;600;700&family=M+PLUS+Rounded+1c:wght@400;500;700;800&display=swap');

:root {
  /* アイコンのベージュ */
  --tan-50:   #FBF4EC;
  --tan-100:  #F5E7D7;
  --tan-200:  #E9D5BE;
  --tan-300:  #D9BFA2;
  --tan-400:  #CBAF96;
  --tan-500:  #B79575;
  --tan-600:  #9E7A58;

  /* アプリ内アクセントのテラコッタ */
  --terra-300: #EDB07A;
  --terra-400: #E2954F;
  --terra-500: #D2691E;
  --terra-600: #B4571C;
  --terra-700: #93440F;

  --ink:        #3A2618;
  --ink-soft:   #6C5545;
  --ink-faint:  #9C8875;

  --cream:      #FAF3EA;
  --cream-2:    #FFFDFA;
  --line:       #EADCC9;

  --radius:     22px;
  --radius-lg:  30px;
  --shadow-sm:  0 4px 14px rgba(112, 74, 34, .10);
  --shadow-md:  0 18px 40px rgba(130, 84, 40, .16);
  --shadow-lg:  0 34px 80px rgba(120, 74, 34, .26);
  --maxw:       1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: 'M PLUS Rounded 1c', system-ui, -apple-system, 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.85;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.display { font-family: 'Quicksand', 'M PLUS Rounded 1c', sans-serif; letter-spacing: -.01em; }

/* ---------- gradient / helpers ---------- */
.grad-text {
  background: linear-gradient(120deg, var(--terra-700), var(--terra-500) 52%, var(--terra-400));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* =========================================================
   NAV
   ========================================================= */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(160%) blur(14px);
  background: rgba(252, 246, 238, .82);
  border-bottom: 1px solid rgba(234, 220, 201, .8);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark {
  width: 38px; height: 38px; border-radius: 11px;
  box-shadow: 0 6px 16px rgba(150, 110, 74, .32), inset 0 0 0 1px rgba(255,255,255,.4);
}
.brand__name { font-family: 'Quicksand', sans-serif; font-weight: 700; font-size: 21px; color: var(--terra-700); }
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a { font-weight: 500; font-size: 15px; color: var(--ink-soft); transition: color .2s; }
.nav__links a:hover { color: var(--terra-600); }
.nav__cta {
  padding: 10px 20px; border-radius: 999px; font-weight: 700; font-size: 14px; color: #fff;
  background: linear-gradient(135deg, var(--terra-400), var(--terra-600));
  box-shadow: 0 8px 20px rgba(180, 87, 28, .34);
}
.nav__cta:hover { color:#fff; filter: brightness(1.04); }
.nav__burger { display:none; }
@media (max-width: 780px) {
  .nav__links a:not(.nav__cta) { display: none; }
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  padding: 92px 0 120px;
  background:
    radial-gradient(1100px 620px at 84% -8%, #EFDCC2 0%, rgba(239,220,194,0) 60%),
    radial-gradient(900px 520px at 6% 14%, #F8EEE0 0%, rgba(248,238,224,0) 55%),
    linear-gradient(160deg, #FDF6EC 0%, #F5E7D5 46%, #E8D2B7 100%);
}
.hero::after {                     /* subtle grain for depth */
  content:""; position:absolute; inset:0; z-index:-1; opacity:.5; pointer-events:none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.045'/%3E%3C/svg%3E");
}
.orb { position:absolute; border-radius:50%; filter: blur(8px); z-index:-1; opacity:.55; }
.orb--1 { width:320px; height:320px; top:-60px; right:-40px;
  background: radial-gradient(circle at 30% 30%, #E7CBAA, #C9A176); animation: float 11s ease-in-out infinite; }
.orb--2 { width:180px; height:180px; bottom:40px; left:-30px;
  background: radial-gradient(circle at 30% 30%, #F4E3CE, #DDB489); animation: float 9s ease-in-out infinite reverse; }
.orb--3 { width:120px; height:120px; top:120px; left:46%;
  background: radial-gradient(circle at 30% 30%, #F3D6B4, #DE9B58); opacity:.35; animation: float 13s ease-in-out infinite; }
@keyframes float { 0%,100%{ transform: translateY(0) } 50%{ transform: translateY(-26px) } }

.hero__grid {
  position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center;
}
.hero__eyebrow {
  display:inline-flex; align-items:center; gap:8px; margin-bottom: 22px;
  padding: 7px 15px; border-radius:999px; font-size:13px; font-weight:700; color: var(--terra-700);
  background: rgba(255,255,255,.7); border:1px solid rgba(210,105,30,.28); box-shadow: var(--shadow-sm);
}
.hero__eyebrow .dot { width:8px; height:8px; border-radius:50%; background: var(--terra-500); box-shadow:0 0 0 4px rgba(210,105,30,.2); }
.hero h1 { font-size: clamp(34px, 5vw, 54px); line-height: 1.15; font-weight: 800; letter-spacing: -.02em; }
.hero p.lead { margin-top: 22px; font-size: 18px; color: var(--ink-soft); max-width: 30em; }
.hero__actions { display:flex; flex-wrap:wrap; gap: 14px; margin-top: 34px; }
.btn {
  display:inline-flex; align-items:center; gap:10px; padding: 15px 26px; border-radius: 999px;
  font-weight:700; font-size:16px; transition: transform .18s, box-shadow .18s, filter .18s;
}
.btn--primary { color:#fff; background: linear-gradient(135deg, var(--terra-400), var(--terra-600)); box-shadow: 0 14px 30px rgba(180,87,28,.34); }
.btn--primary:hover { color:#fff; transform: translateY(-3px); box-shadow: 0 20px 40px rgba(180,87,28,.44); }
.btn--ghost { color: var(--terra-700); background: rgba(255,255,255,.8); border:1.5px solid rgba(210,105,30,.32); box-shadow: var(--shadow-sm); }
.btn--ghost:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.hero__meta { margin-top: 26px; display:flex; gap:22px; flex-wrap:wrap; font-size:14px; color: var(--ink-faint); font-weight:500; }
.hero__meta b { color: var(--ink); font-weight:700; }

/* ---- phone mockup ---- */
.phone-stage { display:flex; justify-content:center; position: relative; }
.phone {
  position: relative; width: 290px; height: 592px; border-radius: 46px; padding: 13px;
  background: linear-gradient(160deg, #2c2622, #171310);
  box-shadow: var(--shadow-lg), inset 0 0 0 2px rgba(255,255,255,.06);
  transform: rotate(-4deg); transition: transform .5s ease;
}
.phone:hover { transform: rotate(-1deg) translateY(-6px); }
.phone__notch { position:absolute; top:24px; left:50%; transform:translateX(-50%); width:120px; height:26px; background:#0d0b09; border-radius:0 0 16px 16px; z-index:3; }
.screen {
  position: relative; height: 100%; border-radius: 34px; overflow: hidden;
  background: linear-gradient(180deg, #FFFDFA 0%, #FBF3E9 60%, #F6E9DA 100%);
}
.screen__head { position:absolute; top:52px; left:0; right:0; text-align:center; z-index:2; }
.screen__head .k { font-size:11px; color:var(--ink-faint); font-weight:500; }
.screen__head .t { font-weight:800; font-size:15px; margin-top:4px; color:var(--ink); }

/* 天気タイル(アプリの気分選択グリッド) */
.moods { position:absolute; top:112px; left:20px; right:20px; z-index:2;
  display:grid; grid-template-columns:repeat(3,1fr); gap:9px; }
.moods i {
  aspect-ratio:1; border-radius:15px; display:flex; align-items:center; justify-content:center;
  font-size:26px; font-style:normal; background:#fff; border:1.5px solid var(--line);
  box-shadow:0 3px 8px rgba(112,74,34,.08);
}
.moods i.on { border-color:var(--terra-400); box-shadow:0 0 0 2px rgba(226,149,79,.35), 0 6px 14px rgba(180,87,28,.18); }

.player {
  position:absolute; left:20px; right:20px; bottom:26px; z-index:2;
  background:#fff; border:1px solid var(--line); border-radius:22px; padding:18px 18px 20px;
  box-shadow: 0 16px 32px rgba(112,74,34,.18);
}
.player .pt { font-weight:800; font-size:14px; color:var(--ink); }
.player .ps { font-size:11px; color:var(--ink-faint); margin-top:2px; }
.wave { display:flex; align-items:flex-end; gap:3px; height:34px; margin:12px 0 14px; }
.wave i { flex:1; background: linear-gradient(var(--terra-300),var(--terra-500)); border-radius:3px; animation: bar 1.4s ease-in-out infinite; }
.wave i:nth-child(odd){ animation-delay:.2s } .wave i:nth-child(3n){ animation-delay:.4s } .wave i:nth-child(4n){ animation-delay:.6s }
@keyframes bar { 0%,100%{ transform: scaleY(.35) } 50%{ transform: scaleY(1) } }
.player .bar { height:5px; border-radius:999px; background: var(--line); position:relative; }
.player .bar::before { content:""; position:absolute; left:0; top:0; bottom:0; width:42%; border-radius:999px; background: linear-gradient(90deg,var(--terra-400),var(--terra-600)); }
.play-fab { position:absolute; right:22px; top:-26px; width:56px; height:56px; border-radius:50%;
  background: linear-gradient(135deg,var(--terra-400),var(--terra-600)); box-shadow:0 12px 24px rgba(180,87,28,.44);
  display:flex; align-items:center; justify-content:center; }
.play-fab::before { content:""; border-style:solid; border-width:9px 0 9px 15px; border-color: transparent transparent transparent #fff; margin-left:3px; }

@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; gap: 56px; }
  .phone { transform: rotate(0); }
}

/* =========================================================
   SECTIONS
   ========================================================= */
section { position: relative; }
.section { padding: 96px 0; }
.section--tint { background: linear-gradient(180deg, #FFFDFA, #F7EDDF); border-block: 1px solid var(--line); }
.sec-head { text-align:center; max-width: 44em; margin: 0 auto 56px; }
.sec-head .kicker { font-family:'Quicksand',sans-serif; font-weight:700; letter-spacing:.14em; text-transform:uppercase; font-size:13px; color:var(--terra-600); }
.sec-head h2 { font-size: clamp(28px, 4vw, 42px); font-weight:800; letter-spacing:-.02em; margin-top:12px; line-height:1.25; }
.sec-head p { margin-top:16px; color:var(--ink-soft); font-size:17px; }

/* feature cards */
.grid { display:grid; gap: 22px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px){ .grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 620px){ .grid { grid-template-columns: 1fr; } }
.card {
  position: relative; background: var(--cream-2); border:1px solid var(--line); border-radius: var(--radius-lg);
  padding: 30px 26px 28px; box-shadow: var(--shadow-sm); transition: transform .22s, box-shadow .22s;
  overflow: hidden;
}
.card::before { content:""; position:absolute; top:0; left:0; right:0; height:4px;
  background: linear-gradient(90deg, var(--terra-400), var(--terra-600)); opacity:.9; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.card__ico {
  width: 58px; height: 58px; border-radius: 17px; display:flex; align-items:center; justify-content:center;
  font-size: 27px; margin-bottom: 18px;
  background: linear-gradient(150deg, var(--tan-100), var(--tan-200));
  box-shadow: inset 0 0 0 1px rgba(210,105,30,.24), 0 8px 18px rgba(210,105,30,.18);
}
.card h3 { font-size: 19px; font-weight:800; margin-bottom: 8px; }
.card p { font-size: 15px; color: var(--ink-soft); }

/* steps */
.steps { display:grid; grid-template-columns: repeat(3,1fr); gap: 26px; counter-reset: s; }
@media (max-width: 800px){ .steps { grid-template-columns:1fr; } }
.step { position:relative; padding: 34px 26px 28px; background:var(--cream-2); border:1px solid var(--line); border-radius:var(--radius-lg); box-shadow:var(--shadow-sm); }
.step__n { counter-increment:s; position:absolute; top:-20px; left:26px; width:44px; height:44px; border-radius:14px;
  display:flex; align-items:center; justify-content:center; font-family:'Quicksand',sans-serif; font-weight:700; font-size:20px; color:#fff;
  background: linear-gradient(135deg,var(--terra-400),var(--terra-600)); box-shadow:0 10px 22px rgba(180,87,28,.34); }
.step__n::before { content: counter(s); }
.step h3 { margin:14px 0 8px; font-size:18px; font-weight:800; }
.step p { font-size:15px; color:var(--ink-soft); }

/* split / safety */
.split { display:grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items:center; }
@media (max-width: 860px){ .split { grid-template-columns:1fr; gap:36px; } }
.split h2 { font-size: clamp(26px,3.5vw,38px); font-weight:800; letter-spacing:-.02em; line-height:1.3; }
.split .kicker { font-family:'Quicksand',sans-serif; font-weight:700; letter-spacing:.14em; text-transform:uppercase; font-size:13px; color:var(--terra-600); }
.checklist { list-style:none; margin-top:26px; display:grid; gap:16px; }
.checklist li { display:flex; gap:14px; align-items:flex-start; font-size:16px; color:var(--ink-soft); }
.checklist .ck { flex:none; width:28px; height:28px; border-radius:9px; display:flex; align-items:center; justify-content:center; color:#fff; font-size:15px; font-weight:700;
  background: linear-gradient(135deg,var(--terra-400),var(--terra-600)); box-shadow:0 6px 14px rgba(180,87,28,.32); }
.checklist b { color: var(--ink); font-weight:700; }
.panel {
  border-radius: var(--radius-lg); padding: 40px; color:#fff; position:relative; overflow:hidden;
  background: linear-gradient(155deg, var(--tan-500) 0%, var(--terra-500) 58%, var(--terra-700) 100%);
  box-shadow: var(--shadow-lg);
}
.panel::after { content:""; position:absolute; width:260px; height:260px; border-radius:50%; right:-70px; top:-70px; background:rgba(255,255,255,.16); }
.panel h3 { font-family:'Quicksand',sans-serif; font-size:24px; font-weight:700; margin-bottom:14px; position:relative; }
.panel p { position:relative; opacity:.96; }
.panel .stat { display:flex; gap:30px; margin-top:26px; position:relative; }
.panel .stat div span { font-family:'Quicksand',sans-serif; font-size:32px; font-weight:700; display:block; }
.panel .stat div small { opacity:.9; font-size:13px; }

/* CTA */
.cta {
  text-align:center; border-radius: 34px; padding: 66px 30px; position:relative; overflow:hidden; color:#fff;
  background: radial-gradient(700px 300px at 50% -30%, #E9B682, transparent 60%), linear-gradient(150deg, var(--terra-500), var(--terra-700));
  box-shadow: var(--shadow-lg);
}
.cta h2 { font-size: clamp(28px,4vw,44px); font-weight:800; letter-spacing:-.02em; }
.cta p { margin:16px auto 30px; max-width:34em; opacity:.96; font-size:17px; }
.cta .btn--primary { background:#fff; color:var(--terra-700); box-shadow:0 16px 34px rgba(90,40,0,.3); }
.cta .btn--primary:hover { color:var(--terra-700); }

/* =========================================================
   FOOTER
   ========================================================= */
.footer { background: #33251A; color: #E9DDD0; padding: 64px 0 40px; }
.footer__grid { display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; }
@media (max-width: 760px){ .footer__grid { grid-template-columns:1fr; gap:30px; } }
.footer .brand__name { color:#fff; }
.footer p { color:#B9A996; font-size:14px; margin-top:14px; max-width:26em; }
.footer h4 { font-family:'Quicksand',sans-serif; font-size:13px; letter-spacing:.12em; text-transform:uppercase; color:#C9B7A3; margin-bottom:16px; }
.footer ul { list-style:none; display:grid; gap:11px; }
.footer a { color:#E4D6C6; font-size:15px; transition:color .2s; }
.footer a:hover { color: var(--terra-300); }
.footer__bottom { margin-top:48px; padding-top:24px; border-top:1px solid rgba(255,255,255,.1); display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:13px; color:#9A8875; }

/* =========================================================
   LEGAL / SUPPORT DOC PAGES
   ========================================================= */
.doc-hero { padding: 70px 0 44px; text-align:center;
  background: radial-gradient(700px 320px at 50% -20%, #EFDCC2, transparent 62%), linear-gradient(160deg,#FDF6EC,#F3E4D0); }
.doc-hero .kicker { font-family:'Quicksand',sans-serif; font-weight:700; letter-spacing:.14em; text-transform:uppercase; font-size:13px; color:var(--terra-600); }
.doc-hero h1 { font-size: clamp(30px,5vw,46px); font-weight:800; margin-top:10px; letter-spacing:-.02em; }
.doc-hero p { margin-top:14px; color:var(--ink-soft); }
.doc { max-width: 820px; margin: 0 auto; padding: 60px 24px 90px; }
.doc h2 { font-size: 21px; font-weight:800; margin: 40px 0 14px; padding-left:14px; border-left:5px solid var(--terra-500); }
.doc h3 { font-size: 17px; font-weight:700; margin: 26px 0 8px; color: var(--terra-700); }
.doc p { color: var(--ink-soft); margin: 10px 0; }
.doc ul, .doc ol { color: var(--ink-soft); margin: 10px 0 10px 22px; }
.doc li { margin: 6px 0; }
.doc .updated { display:inline-block; margin-bottom:8px; font-size:13px; font-weight:700; color:var(--terra-700); background: var(--tan-50); border:1px solid var(--tan-100); padding:5px 12px; border-radius:999px; }
.doc pre.legal { white-space: pre-wrap; font-family: inherit; color: var(--ink-soft); font-size:15px; line-height:1.95; }

/* FAQ */
.faq { max-width: 820px; margin: 0 auto; display:grid; gap:14px; }
.faq details {
  background: var(--cream-2); border:1px solid var(--line); border-radius: 18px; padding: 4px 22px; box-shadow: var(--shadow-sm);
  transition: box-shadow .2s;
}
.faq details[open] { box-shadow: var(--shadow-md); }
.faq summary { cursor:pointer; list-style:none; padding: 18px 0; font-weight:700; font-size:17px; display:flex; justify-content:space-between; align-items:center; gap:16px; }
.faq summary::-webkit-details-marker { display:none; }
.faq summary::after { content:"+"; font-family:'Quicksand',sans-serif; font-size:26px; color:var(--terra-500); transition: transform .25s; line-height:1; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .a { padding: 0 0 20px; color: var(--ink-soft); font-size:15px; }
.faq .a a { color: var(--terra-700); font-weight:700; text-decoration: underline; }

/* contact card */
.contact { display:grid; grid-template-columns: 1fr 1fr; gap:20px; max-width:820px; margin: 40px auto 0; }
@media (max-width:640px){ .contact { grid-template-columns:1fr; } }
.contact a.c {
  display:flex; gap:16px; align-items:center; padding: 24px; border-radius: 22px; background: var(--cream-2);
  border:1px solid var(--line); box-shadow: var(--shadow-sm); transition: transform .2s, box-shadow .2s;
}
.contact a.c:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.contact .ci { width:52px; height:52px; border-radius:15px; flex:none; display:flex; align-items:center; justify-content:center; font-size:24px;
  background: linear-gradient(150deg,var(--tan-100),var(--tan-200)); box-shadow: inset 0 0 0 1px rgba(210,105,30,.24); }
.contact .c b { display:block; font-size:16px; color:var(--ink); }
.contact .c span { font-size:13px; color:var(--ink-faint); }

.backlink { display:inline-flex; align-items:center; gap:8px; margin-top:50px; font-weight:700; color:var(--terra-700); }
.backlink:hover { color: var(--terra-500); }

.spec-table { width:100%; border-collapse: collapse; margin-top:18px; background:var(--cream-2); border-radius:16px; overflow:hidden; box-shadow:var(--shadow-sm); }
.spec-table th, .spec-table td { text-align:left; padding: 14px 18px; border-bottom:1px solid var(--line); font-size:15px; }
.spec-table th { width: 34%; color:var(--ink); font-weight:700; background: var(--tan-50); }
.spec-table td { color: var(--ink-soft); }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom:none; }