/* =========================================================
   おあいこ Landing v3 — editorial / typographic / motion
   囲わず・余白とタイポと光で見せる。上品な動きを添える。
   ========================================================= */
:root{
  --canvas:#f4f5f8; --paper:#ffffff;
  --ink:#131022; --body:#56586b; --muted:#9a9cad;
  --line:#e7e8ef; --line-strong:#d9dbe6;
  --accent:#533afd; --accent-ink:#3f29d6;
  --glow:#e9e6ff; --glow-2:#eef0f6;
  --r-card:24px; --r-lg:30px; --r-phone:44px; --pill:999px;
  --maxw:1120px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --sans:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN","Noto Sans JP",-apple-system,system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden}
body{margin:0; background:var(--canvas); color:var(--ink); font-family:var(--sans); font-weight:400;
  line-height:1.5; -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  font-feature-settings:"palt" 1; overflow-x:hidden; width:100%}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* ---- type ---- */
.eyebrow{font-size:11.5px; font-weight:700; letter-spacing:.07em; color:var(--accent); margin:0 0 18px}
.eyebrow.muted{color:var(--muted)}
h1,h2,h3{font-weight:700; color:var(--ink); margin:0; font-feature-settings:"palt" 1}
.display{font-size:clamp(36px,4.9vw,60px); font-weight:900; line-height:1.08; letter-spacing:-.022em}
.h2{font-size:clamp(28px,3.7vw,44px); font-weight:800; line-height:1.22; letter-spacing:-.025em}
.h3{font-size:clamp(21px,2.5vw,31px); font-weight:700; line-height:1.28; letter-spacing:-.018em}
.lead{font-size:clamp(16px,1.6vw,18.5px); font-weight:400; line-height:1.72; color:var(--body)}

/* ---- buttons / appstore ---- */
.btn{display:inline-flex; align-items:center; justify-content:center; gap:8px; height:52px; padding:0 26px;
  border-radius:var(--pill); border:none; font-family:inherit; font-weight:700; font-size:15.5px; cursor:pointer;
  transition:transform .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease)}
.btn-primary{background:var(--accent); color:#fff; box-shadow:0 8px 22px -8px rgba(83,58,253,.5)}
.btn-primary:hover{background:var(--accent-ink); transform:translateY(-2px); box-shadow:0 14px 30px -8px rgba(83,58,253,.55)}
.btn-ghost{background:transparent; color:var(--ink); border:1px solid var(--line-strong)}
.btn-ghost:hover{border-color:var(--ink); transform:translateY(-1px)}
.appstore-badge{display:inline-flex; height:52px; transition:transform .2s var(--ease)}
.appstore-badge img{height:100%;width:auto}
.appstore-badge:hover{transform:translateY(-2px)}

/* ---- header ---- */
.site-header{position:sticky; top:0; z-index:50; background:rgba(244,245,248,.72); backdrop-filter:saturate(1.3) blur(16px); transition:border-color .25s,box-shadow .25s; border-bottom:1px solid transparent}
.site-header.scrolled{border-bottom-color:var(--line); box-shadow:0 1px 0 rgba(20,18,40,.02)}
.site-header .wrap{display:flex; align-items:center; justify-content:space-between; height:72px}
.brand{display:flex; align-items:center; gap:11px}
.brand .logo{width:26px;height:26px;display:block; transition:transform .3s var(--ease)}
.brand:hover .logo{transform:rotate(-8deg)}
.brand .wordmark{font-size:20px; font-weight:800; letter-spacing:-.02em; color:var(--ink); font-feature-settings:"palt" 1}
.nav-links{display:flex; gap:30px; align-items:center}
.nav-links a{font-size:14px; font-weight:500; color:var(--body); position:relative}
.nav-links a::after{content:""; position:absolute; left:0; right:100%; bottom:-4px; height:1.5px; background:var(--accent); transition:right .25s var(--ease)}
.nav-links a:hover{color:var(--ink)} .nav-links a:hover::after{right:0}
.header-cta{height:42px; padding:0 20px; font-size:14px}
@media(max-width:760px){.nav-links{display:none}}

/* ---- hero (2台モック・光・浮遊) ---- */
.hero{position:relative; overflow:hidden}
.hero .wrap{display:grid; grid-template-columns:1.05fr .95fr; gap:32px; align-items:center; padding:84px 28px 100px}
.hero .display{margin:0 0 22px}
.hero .lead{max-width:23em; margin:0 0 32px}
.hero-cta{display:flex; gap:14px; align-items:center; flex-wrap:wrap}
.hero-note{margin:18px 0 0; font-size:13px; color:var(--muted)}
.hero-visual{position:relative; display:flex; align-items:center; justify-content:center; min-height:600px}
.hero-glow{position:absolute; width:min(86%,430px); aspect-ratio:1; left:52%; top:46%; transform:translate(-50%,-50%);
  border-radius:50%; background:radial-gradient(circle at 50% 45%, var(--glow) 0%, rgba(233,230,255,0) 70%); z-index:0; filter:blur(6px)}
.phone-wrap{position:relative; z-index:2; will-change:transform; animation:float 7s var(--ease) infinite}
.phone-wrap.sub{position:absolute; z-index:1; right:2%; bottom:3%; animation:float 8.5s var(--ease) infinite; animation-delay:-2s}
.device{border-radius:var(--r-phone); overflow:hidden; background:#fff; border:8px solid #100e1d;
  box-shadow:0 30px 60px -24px rgba(28,22,70,.34)}
.device::after{content:""; position:absolute; top:11px; left:50%; transform:translateX(-50%); width:30%; height:7px; border-radius:99px; background:#100e1d; z-index:3}
.phone-wrap.main .device{width:272px; transform:rotate(-3deg)}
.phone-wrap.sub .device{width:212px; border-width:7px; transform:rotate(6deg); box-shadow:0 24px 48px -22px rgba(28,22,70,.30)}
.phone-wrap .device{position:relative}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@media(max-width:860px){
  .hero .wrap{grid-template-columns:1fr; text-align:center; padding:52px 28px 64px; gap:30px}
  .hero .lead{margin-left:auto;margin-right:auto} .hero-cta{justify-content:center}
  .hero-visual{min-height:520px}
  .phone-wrap.main .device{width:232px} .phone-wrap.sub .device{width:176px}
}

/* ---- section base ---- */
.section{padding:108px 0}
.section-head{max-width:720px; margin:0 0 56px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head .lead{margin-top:14px}

/* ---- pains: 囲わず・縦ヘアラインで仕切る ---- */
.pains{display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:0}
.pain{padding:8px 36px; position:relative; min-width:0}
.pain + .pain::before{content:""; position:absolute; left:0; top:6px; bottom:6px; width:1px; background:var(--line)}
.pain .ic{width:30px; height:30px; color:var(--accent); margin-bottom:20px; transition:transform .5s var(--ease)}
.pain.in .ic{animation:pop .6s var(--ease) both}
.pain .ic svg{width:30px;height:30px;display:block}
.pain h3{font-size:19px; font-weight:700; letter-spacing:-.02em; margin:0 0 10px}
.pain p{font-size:14.5px; line-height:1.7; color:var(--body); margin:0; overflow-wrap:break-word}
@keyframes pop{0%{transform:scale(.6);opacity:0}60%{transform:scale(1.12)}100%{transform:scale(1);opacity:1}}
@media(max-width:760px){
  .pains{grid-template-columns:1fr; gap:0}
  .pain{padding:26px 0; border-top:1px solid var(--line)}
  .pain:first-child{border-top:none}
  .pain + .pain::before{display:none}
  .pain .ic{margin-bottom:14px}
}

/* ---- how it works: 番号・線で繋ぐ・囲わない ---- */
.steps{display:grid; grid-template-columns:repeat(3,1fr); gap:40px; position:relative}
.step{position:relative}
.step .num{font-size:13px; font-weight:800; letter-spacing:.1em; color:var(--accent); margin-bottom:16px; display:flex; align-items:center; gap:12px}
.step .num::after{content:""; flex:1; height:1px; background:var(--line)}
.step h3{font-size:20px; font-weight:700; letter-spacing:-.02em; margin:0 0 8px}
.step p{font-size:14.5px; line-height:1.7; color:var(--body); margin:0}
@media(max-width:760px){.steps{grid-template-columns:1fr; gap:28px}}

/* ---- features: 枠なし・光の上に浮かせる ---- */
.feature{display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:center; margin-bottom:118px}
.feature:first-child{margin-bottom:138px}
.feature:last-child{margin-bottom:0}
.feature.reverse .feature-text{order:2}
.feature-text .label{display:inline-block; font-size:11.5px; font-weight:700; letter-spacing:.07em; color:var(--muted); margin-bottom:18px}
.feature:first-child .feature-text .label{color:var(--accent)}
.feature-text .h3{margin:0 0 16px}
.feature:first-child .feature-text .h3{font-size:clamp(25px,3.2vw,37px)}
.feature:not(:first-child) .feature-text .h3{font-size:clamp(20px,2.3vw,28px)}
.feature-text p{font-size:16px; line-height:1.72; color:var(--body); margin:0 0 8px}
.feature-text .note{font-size:13px; color:var(--muted); margin-top:14px}
.feature-text .ft-list{list-style:none; margin:18px 0 0; padding:0}
.feature-text .ft-list li{position:relative; padding-left:24px; margin:9px 0; font-size:14.5px; color:var(--ink)}
.feature-text .ft-list li::before{content:""; position:absolute; left:0; top:8px; width:14px; height:14px; border-radius:50%; background:var(--accent);
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/13px no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/13px no-repeat}
.feature-visual{position:relative; display:flex; align-items:center; justify-content:center; min-height:560px}
.feature-visual::before{content:""; position:absolute; width:min(80%,360px); aspect-ratio:1; border-radius:50%;
  background:radial-gradient(circle at 50% 45%, var(--glow) 0%, rgba(233,230,255,0) 70%); filter:blur(8px); z-index:0}
.feature-visual .phone-wrap{animation:float 7.5s var(--ease) infinite}
.feature-visual .device{width:282px}
.feature:first-child .feature-visual .device{width:296px}
.feature:not(:first-child) .feature-visual .device{width:252px}
@media(max-width:820px){
  .feature, .feature:first-child{grid-template-columns:1fr; gap:24px; text-align:center; margin-bottom:80px}
  .feature.reverse .feature-text{order:0}
  .feature-text .ft-list{display:inline-block; text-align:left}
  .feature-visual{min-height:460px}
  .feature-visual .device, .feature:first-child .feature-visual .device, .feature:not(:first-child) .feature-visual .device{width:240px}
}

/* push-notification mock (集金) — カードはここだけ意味があるので残す */
.push-stack{display:flex; flex-direction:column; gap:14px; width:100%; max-width:330px; position:relative; z-index:2}
.push-card{background:var(--paper); border:1px solid var(--line); border-radius:18px; padding:14px 16px;
  box-shadow:0 12px 30px -16px rgba(28,22,70,.2); text-align:left}
.push-card-2{margin-left:22px}
.push-head{display:flex; align-items:center; gap:9px; margin-bottom:7px}
.push-ic{width:22px;height:22px;display:block}
.push-name{font-size:12.5px; font-weight:700; color:var(--ink)}
.push-time{margin-left:auto; font-size:11px; color:var(--muted)}
.push-title{font-size:13.5px; font-weight:700; color:var(--ink); margin-bottom:3px}
.push-body{font-size:12.5px; color:var(--body); line-height:1.6}

/* ---- scenes: 囲わず・一行で軽く ---- */
.scenes{display:flex; flex-wrap:wrap; gap:10px 14px; justify-content:center}
.scene{font-size:15px; font-weight:500; color:var(--body); padding:8px 4px; position:relative}
.scene:not(:last-child)::after{content:"·"; position:absolute; right:-9px; color:var(--line-strong)}
@media(max-width:520px){.scene:not(:last-child)::after{display:none}}

/* ---- trust strip ---- */
.trust{display:flex; justify-content:center; flex-wrap:wrap; gap:18px 40px}
.trust-item{display:flex; align-items:center; gap:10px; font-size:14.5px; font-weight:500; color:var(--ink)}
.trust-item .ic{width:20px;height:20px;color:var(--accent);flex:none}

/* ---- faq ---- */
.faq{max-width:760px; margin:0 auto; border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%; text-align:left; background:none; border:none; font-family:inherit; cursor:pointer;
  padding:23px 44px 23px 2px; font-size:16.5px; font-weight:700; letter-spacing:-.01em; color:var(--ink); position:relative; font-feature-settings:"palt" 1; transition:color .2s}
.faq-q:hover{color:var(--accent)}
.faq-q::after{content:""; position:absolute; right:6px; top:50%; width:13px; height:13px; transform:translateY(-50%); background:var(--ink); opacity:.4;
  -webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M11 5h2v14h-2z'/%3E%3Cpath fill='black' d='M5 11h14v2H5z'/%3E%3C/svg%3E") center/contain no-repeat;
          mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M11 5h2v14h-2z'/%3E%3Cpath fill='black' d='M5 11h14v2H5z'/%3E%3C/svg%3E") center/contain no-repeat;
  transition:transform .28s var(--ease)}
.faq-item.open .faq-q::after{transform:translateY(-50%) rotate(45deg)}
.faq-item.open .faq-q{color:var(--accent)}
.faq-a{max-height:0; overflow:hidden; transition:max-height .32s var(--ease)}
.faq-a div{padding:0 2px 24px; font-size:15px; line-height:1.72; color:var(--body)}

/* ---- final CTA ---- */
.cta-final{text-align:center; max-width:760px; margin:0 auto}
.cta-final .display{font-size:clamp(30px,4.4vw,50px); margin:0 0 14px}
.cta-final p{font-size:16px; color:var(--body); margin:0 0 28px}
.cta-final .cta-row{display:flex; justify-content:center}
.cta-final .cta-web{margin:18px 0 0; font-size:14.5px}
.cta-final .cta-web a{color:var(--accent); font-weight:600}
.cta-final .cta-web a:hover{color:var(--accent-ink)}

/* ---- footer ---- */
.site-footer{padding:56px 0 48px; border-top:1px solid var(--line)}
.site-footer .wrap{display:flex; justify-content:space-between; align-items:center; gap:24px; flex-wrap:wrap}
.foot-brand{display:flex; align-items:center; gap:10px; font-weight:800; letter-spacing:-.02em}
.foot-brand .logo{width:22px;height:22px}
.foot-links{display:flex; gap:26px; flex-wrap:wrap}
.foot-links a{font-size:14px; color:var(--body); transition:color .2s}
.foot-links a:hover{color:var(--accent)}
.foot-copy{width:100%; margin-top:22px; font-size:12.5px; color:var(--muted)}

/* ---- motion / reveal ---- */
.reveal{opacity:0; transform:translateY(22px);
  transition:opacity .7s var(--ease) calc(var(--i,0)*80ms), transform .7s var(--ease) calc(var(--i,0)*80ms)}
.reveal.from-left{transform:translateX(-28px)}
.reveal.from-right{transform:translateX(28px)}
.reveal.in{opacity:1; transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .phone-wrap, .feature-visual .phone-wrap, .pain.in .ic{animation:none !important}
  html{scroll-behavior:auto}
}