/* くらしの参謀（SANBOU）— LP / 和×知性・墨紺×金 */
:root{
  --bg:#0E1726; --bg2:#0a111e; --surface:#16223a; --surface2:#1d2c49; --line:#2b3c5e;
  --text:#EAF0FB; --muted:#93A3BE; --gold:#C9A24B; --gold-soft:#e6c87e; --jade:#5FB39B;
  --serif:'Shippori Mincho B1','Hiragino Mincho ProN',serif;
  --sans:'Zen Kaku Gothic New','Hiragino Sans',sans-serif;
  --radius:18px; --maxw:1100px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;scroll-padding-top:78px;}
body{
  font-family:var(--sans); color:var(--text); line-height:1.85; -webkit-font-smoothing:antialiased;
  background:
    radial-gradient(70% 45% at 82% -5%, rgba(201,162,75,.16), transparent 60%),
    radial-gradient(60% 40% at 5% 12%, rgba(95,179,155,.08), transparent 55%),
    linear-gradient(180deg, #101d34 0%, var(--bg) 30%, var(--bg) 100%);
  background-attachment:fixed;
}
.container{max-width:var(--maxw); margin:0 auto; padding:0 22px;}
.gold{color:var(--gold-soft);}
.serif{font-family:var(--serif);}
.eyebrow{font-size:12px; letter-spacing:.34em; color:var(--gold); font-weight:700;}
.eyebrow::before{content:""; display:inline-block; width:18px; height:1px; background:var(--gold); vertical-align:middle; margin-right:10px;}

/* header */
header{position:sticky; top:0; z-index:50; backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
  background:rgba(10,17,30,.72); border-bottom:1px solid rgba(43,60,94,.5);}
header .in{display:flex; align-items:center; justify-content:space-between; height:64px;}
.brand{display:flex; align-items:center; gap:10px; text-decoration:none; color:inherit;}
.brand svg{width:30px; height:30px;}
.brand .nm{font-family:var(--serif); font-weight:800; letter-spacing:.14em; font-size:19px;}
.brand .sub{display:block; font-size:9.5px; letter-spacing:.22em; color:var(--muted);}
header nav{display:flex; gap:26px; align-items:center;}
header nav a{color:var(--muted); text-decoration:none; font-size:14px; font-weight:500; transition:color .2s;}
header nav a:hover{color:var(--gold-soft);}
.nav-cta{padding:9px 18px; border-radius:999px; background:var(--gold); color:#1a1206 !important; font-weight:800; font-size:13px;}
@media(max-width:760px){ header nav .lnk{display:none;} }

/* buttons / badges */
.btn-line{display:inline-flex; align-items:center; gap:9px; background:#06C755; color:#fff; text-decoration:none;
  font-weight:800; font-size:15px; padding:14px 24px; border-radius:14px; box-shadow:0 10px 30px rgba(6,199,85,.22);}
.appstore{display:inline-flex; align-items:center; gap:11px; background:#000; color:#fff; text-decoration:none;
  border:1px solid #2b3c5e; border-radius:14px; padding:10px 20px; position:relative;}
.appstore svg{width:26px; height:26px; fill:#fff;}
.appstore .small{font-size:10px; letter-spacing:.04em; color:#c9d2e2; line-height:1.2;}
.appstore .big{font-size:18px; font-weight:700; letter-spacing:.02em; line-height:1.2;}
.appstore .soon{position:absolute; top:-10px; right:-8px; background:var(--gold); color:#1a1206; font-size:10px;
  font-weight:800; padding:2px 8px; border-radius:999px; letter-spacing:.06em;}

/* phone frame */
.phone{position:relative; width:268px; border-radius:42px; padding:11px; background:linear-gradient(160deg,#26344f,#0c1424);
  border:1px solid #34456a; box-shadow:0 40px 90px rgba(0,0,0,.55), 0 0 0 1px rgba(201,162,75,.1), 0 0 80px rgba(201,162,75,.12);}
.phone img{display:block; width:100%; border-radius:32px;}
.phone::before{content:""; position:absolute; top:21px; left:50%; transform:translateX(-50%); width:72px; height:6px;
  background:#070d18; border-radius:999px; z-index:2;}

/* floating screenshot card（実アプリの実画面・端末枠なし＝PCで縦長にならない） */
.shot{width:100%; border-radius:20px; overflow:hidden; border:1px solid rgba(201,162,75,.24);
  box-shadow:0 24px 60px rgba(0,0,0,.5), 0 0 56px rgba(201,162,75,.10);}
.shot img{display:block; width:100%; height:auto;}
.art .shot{max-width:440px;}

/* hero */
.hero{padding:clamp(46px,8vw,96px) 0 clamp(40px,6vw,72px);}
.hero .grid{display:grid; grid-template-columns:1.1fr .9fr; gap:48px; align-items:center;}
.hero h1{font-family:var(--serif); font-weight:800; font-size:clamp(1.85rem,4.6vw,2.7rem); line-height:1.4;
  letter-spacing:.03em; margin:20px 0 22px; word-break:keep-all;}
.hero h1 .gold{background:linear-gradient(180deg,#f0d89a,#C9A24B); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;}
.hero p.lead{color:#cdd6e6; font-size:clamp(1rem,1.5vw,1.12rem); max-width:30em; margin-bottom:30px;}
.hero .ctas{display:flex; gap:14px; align-items:center; flex-wrap:wrap;}
.hero .free-note{margin-top:18px; font-size:13px; color:var(--muted);}
.hero .free-note b{color:var(--jade);}
.hero .art{display:flex; justify-content:center; position:relative;}
.hero .art::after{content:""; position:absolute; width:330px; height:330px; border-radius:50%;
  background:radial-gradient(circle, rgba(201,162,75,.22), transparent 65%); filter:blur(10px); z-index:-1;}
@media(max-width:860px){ .hero .grid{grid-template-columns:1fr; gap:40px; text-align:center;}
  .hero p.lead{margin-left:auto;margin-right:auto;} .hero .ctas{justify-content:center;} .hero .eyebrow{display:inline-block;} }

/* section base */
section{padding:clamp(54px,8vw,100px) 0;}
.sec-head{text-align:center; max-width:42em; margin:0 auto clamp(36px,5vw,56px);}
.sec-head h2{font-family:var(--serif); font-weight:800; font-size:clamp(1.55rem,3.4vw,2.3rem); line-height:1.45; letter-spacing:.03em; margin:16px 0 14px; text-wrap:balance;}
.sec-head p{color:var(--muted);}

/* pain */
.pain{background:linear-gradient(180deg, transparent, rgba(13,22,38,.6));}
.pain .cards{display:grid; grid-template-columns:repeat(3,1fr); gap:18px;}
.pain .card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:26px 24px;}
.pain .q{font-family:var(--serif); font-size:1.15rem; color:#fff; line-height:1.6; margin-bottom:10px;}
.pain .q .mk{color:var(--gold); margin-right:6px;}
.pain .a{color:var(--muted); font-size:.92rem;}
@media(max-width:760px){ .pain .cards{grid-template-columns:1fr;} }

/* features (alternating) */
.feat{display:grid; grid-template-columns:1fr 1fr; gap:54px; align-items:center; margin-bottom:clamp(44px,7vw,86px);}
.feat:last-child{margin-bottom:0;}
.feat.rev .txt{order:2;} .feat.rev .art{order:1;}
.feat .art{display:flex; justify-content:center; position:relative;}
.feat .art::after{content:""; position:absolute; width:300px; height:300px; border-radius:50%;
  background:radial-gradient(circle, rgba(201,162,75,.14), transparent 66%); z-index:-1;}
.feat .num{font-family:var(--serif); font-size:.95rem; color:var(--gold); letter-spacing:.2em;}
.feat h3{font-family:var(--serif); font-weight:800; font-size:clamp(1.35rem,2.6vw,1.85rem); line-height:1.5; margin:12px 0 14px; letter-spacing:.02em; word-break:keep-all;}
.feat p{color:#c2ccdd;}
.feat ul{list-style:none; margin-top:16px; display:flex; flex-direction:column; gap:10px;}
.feat li{display:flex; gap:10px; align-items:flex-start; color:#cdd6e6; font-size:.95rem;}
.feat li::before{content:"◆"; color:var(--gold); font-size:.7rem; margin-top:.4em;}
@media(max-width:860px){ .feat{grid-template-columns:1fr; gap:34px; text-align:center;}
  .feat.rev .txt{order:0;} .feat.rev .art{order:0;} .feat ul{align-items:center;} .feat li{text-align:left;} }

/* trust */
.trust{background:
  radial-gradient(60% 60% at 50% 0%, rgba(95,179,155,.12), transparent 60%),
  linear-gradient(180deg, var(--bg2), #0c1526);
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
.trust .trust-inner{max-width:780px; margin:0 auto; text-align:center;}
.trust h2{font-family:var(--serif); font-weight:800; font-size:clamp(1.6rem,3.2vw,2.3rem); line-height:1.5; letter-spacing:.03em; margin:14px 0 18px; word-break:keep-all;}
.trust h2 .gold{color:var(--gold-soft);}
.trust p{color:var(--muted); margin-bottom:30px;}
.trust .pills{display:grid; grid-template-columns:repeat(3,1fr); gap:14px;}
.trust .pill{display:flex; flex-direction:column; align-items:center; text-align:center; gap:10px; background:var(--surface); border:1px solid var(--line); border-radius:16px; padding:24px 16px;}
.trust .pill .ic{flex:none; width:42px; height:42px; border-radius:50%; background:rgba(95,179,155,.14); color:var(--jade);
  display:flex; align-items:center; justify-content:center; font-weight:900; font-size:1.1rem;}
.trust .pill .t{font-weight:700;}
.trust .pill .d{color:var(--muted); font-size:.85rem;}
@media(max-width:680px){ .trust .pills{grid-template-columns:1fr; gap:12px;} .trust .pill{flex-direction:row; text-align:left; padding:18px 20px;} }

/* why */
.why .cards{display:grid; grid-template-columns:repeat(3,1fr); gap:18px;}
.why .card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius); padding:30px 26px; text-align:center;}
.why .ic{font-family:var(--serif); font-size:1.6rem; color:var(--gold); margin-bottom:12px;}
.why h3{font-family:var(--serif); font-weight:700; font-size:1.2rem; margin-bottom:10px;}
.why p{color:var(--muted); font-size:.9rem;}
@media(max-width:760px){ .why .cards{grid-template-columns:1fr;} }

/* final cta */
.final{text-align:center;}
.final .box{background:linear-gradient(160deg,#1c2b4a,#12203a); border:1px solid var(--line); border-radius:28px;
  padding:clamp(40px,6vw,68px) 26px; position:relative; overflow:hidden;}
.final .box::after{content:""; position:absolute; inset:0; background:radial-gradient(120% 80% at 80% -10%, rgba(201,162,75,.18), transparent 55%);}
.final h2{font-family:var(--serif); font-weight:800; font-size:clamp(1.6rem,3.6vw,2.4rem); line-height:1.5; letter-spacing:.03em; margin-bottom:16px; position:relative; word-break:keep-all;}
.final p{color:#cdd6e6; margin-bottom:30px; position:relative;}
.final .ctas{display:flex; gap:14px; justify-content:center; align-items:center; flex-wrap:wrap; position:relative;}

/* footer */
footer{border-top:1px solid var(--line); padding:42px 0 56px; background:var(--bg2);}
footer .in{display:flex; flex-wrap:wrap; gap:24px; justify-content:space-between; align-items:flex-start;}
footer .tag{color:var(--muted); font-size:13px; margin-top:10px; max-width:24em;}
footer nav{display:flex; gap:22px; flex-wrap:wrap;}
footer nav a{color:var(--gold-soft); text-decoration:none; font-size:14px;}
footer .base{margin-top:28px; color:var(--muted); font-size:12px; letter-spacing:.04em;}

/* ============ モバイル最適化（PCと明確に分離） ============ */
@media(max-width:860px){
  /* スクショカードを中央寄せ・程よいサイズに */
  .art .shot{max-width:400px; margin:0 auto;}
  .hero{padding-top:32px;}
  .hero .grid{gap:30px;}
  .hero .art::after{width:240px; height:240px;}
  .hero p.lead{font-size:1rem;}
  .feat{gap:26px; margin-bottom:50px;}
  .feat .art::after{width:230px; height:230px;}
  .feat ul{margin-top:14px;}
  section{padding:56px 0;}
  .pain .cards{gap:14px;}
  .trust .wrap{gap:30px;}
  .why .cards{gap:14px;}
  .final .box{padding-left:20px; padding-right:20px;}
}
@media(max-width:430px){
  .art .shot{max-width:330px;}
  .hero h1{margin:16px 0 18px;}
  .pain .card, .why .card{padding:22px 20px;}
  .container{padding:0 18px;}
}

/* reveal — JS が動く時だけ隠す（JS失敗時も白紙にならない）。
   .in 側を html.js 付きにして specificity を勝たせる */
.reveal{transition:opacity .7s ease, transform .7s ease;}
html.js .reveal{opacity:0; transform:translateY(22px);}
html.js .reveal.in{opacity:1; transform:none;}
@media(prefers-reduced-motion:reduce){ html.js .reveal{opacity:1; transform:none;} .reveal{transition:none;} html{scroll-behavior:auto;} }