/* ═══════════════════════════════════════
   礎（ISHIZUE）共有スタイル
   静かな自信×データが主役 ── 確定版 2026-06-25
═══════════════════════════════════════ */
:root{
  --paper:#f6f4ee; --band:#eeebe1;
  --ink:#1b1a16; --ink2:#43403a; --ink3:#7d7668;
  --line:#d6cfbf; --track:#e6e1d4; --clay:#a8512e;
  --paper2:#fbfaf6;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;
  line-height:1.7;-webkit-font-smoothing:antialiased;font-size:15px}

/* ── Layout ── */
.wrap{max-width:760px;margin:0 auto;padding:0 28px}
.wrap-wide{max-width:1000px;margin:0 auto;padding:0 28px}
.sec{padding:64px 0}
.sec-band{padding:64px 0;background:var(--band)}
@media(max-width:600px){.sec,.sec-band{padding:44px 0}}

/* ── Nav ── */
.gnav{position:sticky;top:0;z-index:100;background:var(--paper);border-bottom:1px solid var(--line)}
.gnav-in{display:flex;align-items:center;justify-content:space-between;height:54px}
.gnav-logo{font-size:16px;font-weight:800;letter-spacing:.22em;color:var(--ink);text-decoration:none}
.gnav-logo small{font-size:7.5px;letter-spacing:.4em;display:block;color:var(--ink3);font-weight:700;margin-top:1px}
.gnav-links{display:flex;gap:28px;list-style:none}
.gnav-links a{font-size:12.5px;font-weight:600;color:var(--ink2);text-decoration:none;letter-spacing:.03em;transition:color .15s}
.gnav-links a:hover{color:var(--clay)}
.gnav-cta{font-size:12px;font-weight:700;color:var(--clay);border:1.5px solid var(--clay);border-radius:3px;padding:7px 16px;text-decoration:none;transition:.15s}
.gnav-cta:hover{background:var(--clay);color:#fff}
.gnav-ham{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.gnav-ham span{display:block;width:22px;height:2px;background:var(--ink);border-radius:1px;transition:.25s}
@media(max-width:720px){
  .gnav-links{display:none;flex-direction:column;gap:0;position:absolute;top:54px;left:0;right:0;background:var(--paper);border-bottom:1px solid var(--line);padding:8px 0}
  .gnav-links.open{display:flex}
  .gnav-links li{border-top:1px solid var(--line)}
  .gnav-links a{display:block;padding:14px 28px;font-size:14px}
  .gnav-ham{display:flex}
  .gnav-cta{display:none}
  .gnav-ham.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .gnav-ham.open span:nth-child(2){opacity:0}
  .gnav-ham.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .gnav{position:sticky}
}

/* ── Typography ── */
.eyebrow{font-size:11px;font-weight:800;letter-spacing:.18em;color:var(--ink3);text-transform:uppercase;margin-bottom:10px}
h1{font-size:40px;font-weight:800;line-height:1.42;letter-spacing:.01em}
h2.sec-title{font-size:26px;font-weight:800;line-height:1.45;margin-bottom:14px}
h3{font-size:17px;font-weight:800;line-height:1.5}
p{color:var(--ink2);line-height:1.85}
@media(max-width:600px){h1{font-size:28px}h2.sec-title{font-size:22px}}

/* ── CTA buttons ── */
.btn{display:inline-block;font-weight:700;font-size:15px;text-decoration:none;transition:.2s}
.btn-primary{background:var(--ink);color:var(--paper);padding:14px 32px;border-radius:2px}
.btn-primary:hover{background:#2e2b24}
.btn-ghost{color:var(--ink);border-bottom:2px solid var(--clay);padding:5px 2px 7px}
.btn-ghost:hover{padding-left:6px}
.btn-ghost .ar{color:var(--clay)}

/* ── Reveal animation ── */
.rv{opacity:0;transform:translateY(18px);transition:.85s cubic-bezier(.2,.7,.2,1)}
.rv.show{opacity:1;transform:none}

/* ── Section divider ── */
.sec-div{border:none;border-top:1px solid var(--line);margin:0}

/* ── 3-col grid ── */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:40px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;margin-top:40px}
@media(max-width:640px){.grid3,.grid2{grid-template-columns:1fr;gap:24px}}

/* ── Card ── */
.card{padding:28px 0;border-top:1px solid var(--line)}
.card .num{font-size:11px;font-weight:800;letter-spacing:.1em;color:var(--ink3);margin-bottom:12px}
.card h3{margin-bottom:10px}
.card p{font-size:13.5px}

/* ── Promise table (Do/Don't) ── */
.promise{display:grid;grid-template-columns:1fr 1fr;margin-top:28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.pm{padding:22px 26px}.pm:first-child{padding-left:0}.pm:last-child{padding-right:0}.pm+.pm{border-left:1px solid var(--line)}
.pm .h{display:flex;align-items:center;gap:9px;font-size:13.5px;font-weight:800;color:var(--ink);margin-bottom:10px}
.pm .h::before{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;border-radius:99px;font-size:12px;font-weight:800;flex:none;content:"✓";background:var(--clay);color:#fff}
.pm.no .h::before{content:"×";background:none;border:1.5px solid var(--ink3);color:var(--ink3)}
.pm p{font-size:13.5px;line-height:1.8}
@media(max-width:560px){.promise{grid-template-columns:1fr}.pm{padding:18px 0}.pm+.pm{border-left:0;border-top:1px solid var(--line)}}

/* ── Closing line ── */
.close-line{font-size:18px;color:var(--ink);line-height:1.9;max-width:560px;margin-top:34px}
.close-line strong{font-weight:800;border-bottom:2px solid var(--clay);padding-bottom:2px}

/* ── Hero 2-col ── */
.hero-grid{display:block}
.hero-side{display:none}
.spec{border-top:1px solid var(--line)}
.spec>div{display:flex;gap:16px;padding:13px 0;border-bottom:1px solid var(--line)}
.spec dt{min-width:46px;font-size:11px;font-weight:800;letter-spacing:.1em;color:var(--ink3);padding-top:2px;flex:none}
.spec dd{font-size:13.5px;color:var(--ink2);line-height:1.55}.spec dd b{color:var(--ink);font-weight:700}
@media(min-width:840px){
  .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
  .hero-side{display:block}
}

/* ── Step list ── */
.steps{list-style:none;margin-top:32px}
.steps li{display:grid;grid-template-columns:44px 1fr;gap:14px;padding:22px 0;border-top:1px solid var(--line)}
.steps li:last-child{border-bottom:1px solid var(--line)}
.steps .sn{font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--clay);padding-top:3px}
.steps h3{margin-bottom:6px}
.steps p{font-size:13.5px}
.step-detail{display:flex;flex-direction:column;gap:0;margin-top:14px;border-top:1px solid var(--line)}
.step-detail>div{display:grid;grid-template-columns:min-content 1fr;gap:12px;padding:9px 0;border-bottom:1px solid var(--line)}
.step-detail dt{font-size:11.5px;font-weight:800;color:var(--ink3);white-space:nowrap;padding-top:2px}
.step-detail dd{font-size:13px;color:var(--ink2);line-height:1.7}

/* ── Pricing ── */
.price-box{border:1px solid var(--line);border-radius:4px;padding:28px;margin-top:24px;background:var(--paper2)}
.price-box .p-name{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--ink3);margin-bottom:8px}
.price-box .p-num{font-size:36px;font-weight:800;line-height:1;color:var(--ink)}
.price-box .p-num small{font-size:14px;font-weight:600;color:var(--ink3);margin-left:4px}
.price-box .p-desc{font-size:13px;color:var(--ink2);margin-top:10px;line-height:1.75}
.price-box .p-incl{list-style:none;margin-top:14px}
.price-box .p-incl li{font-size:13px;color:var(--ink2);padding:5px 0;border-top:1px solid var(--line);padding-left:16px;position:relative}
.price-box .p-incl li::before{content:"–";position:absolute;left:0;color:var(--ink3)}

/* ── Footer ── */
footer{padding:32px 0;border-top:1px solid var(--line);text-align:center;font-size:11.5px;color:var(--ink3)}
footer a{color:var(--ink3);text-decoration:none}footer a:hover{color:var(--clay)}
.footer-in{display:flex;flex-direction:column;align-items:center;gap:12px}
.footer-nav{display:flex;gap:20px;flex-wrap:wrap;justify-content:center}

/* ── Dark mode ── */
@media(prefers-color-scheme:dark){
  :root{--paper:#1a1815;--band:#211f1a;--paper2:#201e1a;--ink:#efece3;--ink2:#b8b2a4;--ink3:#7a7466;--line:#322e27;--track:#2c2922;--clay:#cf7a45}
}