/* GAN TATTOO — shared styles. Design language inherited from client-provided index.html mock. */
:root{
  --ink:#111;
  --paper:#f4f0e8;
  --white:#fff;
  --red:#8b1e23;
  --muted:#777;
  --line:rgba(17,17,17,.18);
  --line-strong:rgba(17,17,17,.35);
  --max:1280px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"Helvetica Neue",sans-serif;line-height:1.55}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{width:min(calc(100% - 40px),var(--max));margin:auto}
.eyebrow{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--red);font-weight:700}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(46px,7vw,112px);line-height:.92;letter-spacing:-.055em;max-width:980px}
h2{font-size:clamp(34px,5vw,72px);line-height:.98;letter-spacing:-.045em}
h3{font-size:20px;letter-spacing:-.02em}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 24px;border:1px solid var(--ink);text-transform:uppercase;font-size:12px;letter-spacing:.14em;font-weight:700;transition:.2s ease;background:transparent;cursor:pointer;font-family:inherit;color:var(--ink)}
.btn.primary{background:var(--ink);color:var(--white)}
.btn.primary:hover{background:var(--red);border-color:var(--red)}
.btn.ghost:hover{background:var(--ink);color:var(--white)}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}

/* header */
header{position:fixed;z-index:20;left:0;right:0;top:0;background:rgba(17,17,17,.96);backdrop-filter:blur(12px);border-bottom:1px solid #333;color:#fff}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand img{height:54px;filter:invert(1)}
.menu{display:flex;gap:26px;align-items:center;margin-left:auto;font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:700}
.menu a:not(.btn):hover{color:#d85b60}

section{padding:100px 0;border-top:1px solid var(--line)}
.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:46px}
.section-head p{max-width:520px;color:#444;margin-bottom:4px}

/* home hero */
.hero{min-height:100vh;padding-top:132px;padding-bottom:56px;display:grid;align-items:end;border-top:0}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:end}
.hero-copy .sub{font-size:17px;max-width:620px;color:#333;margin:24px 0 34px}
.hero-meta{display:flex;gap:24px;flex-wrap:wrap;margin-top:34px;font-size:12px;text-transform:uppercase;letter-spacing:.12em}
.hero-visual{min-height:650px;background:#171717;color:#fff;position:relative;overflow:hidden;display:flex;align-items:flex-end;padding:26px}
.hero-visual:before,.work:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 30%,rgba(139,30,35,.55),transparent 28%),linear-gradient(145deg,#2b2b2b 0%,#111 56%,#050505 100%)}
.photo-label{position:relative;z-index:2;border:1px solid rgba(255,255,255,.35);padding:10px 12px;font-size:10px;letter-spacing:.14em;text-transform:uppercase}
.red-mark{width:74px;height:74px;border-radius:50%;background:var(--red);position:absolute;right:26px;top:26px;z-index:2}

/* inner page hero */
.page-hero{padding:180px 0 80px;border-top:0}
.page-hero h1{font-size:clamp(42px,6vw,92px)}
.page-hero .sub{font-size:17px;max-width:660px;color:#333;margin:24px 0 34px}

/* works */
.works-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.work{height:430px;background:#1a1a1a;position:relative;overflow:hidden}
.work:nth-child(3n+2):before{background:linear-gradient(160deg,#555,#111 68%)}
.work:nth-child(3n):before{background:radial-gradient(circle at 70% 25%,rgba(139,30,35,.6),transparent 22%),linear-gradient(140deg,#333,#090909 70%)}
.work .cap{position:absolute;left:18px;bottom:16px;color:#fff;font-size:10px;letter-spacing:.13em;text-transform:uppercase;z-index:2}
.work.art{background:#fff;border:1px solid var(--line)}
.work.art:before{content:none}
.work.art img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:18px}
.work.art .cap{color:#111}

.tag-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:34px}
.tag{border:1px solid var(--ink);padding:9px 16px;font-size:11px;letter-spacing:.13em;text-transform:uppercase;font-weight:700}
.tag.active{background:var(--ink);color:#fff}

/* facts */
.fact-grid{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--ink)}
.fact{padding:34px 26px;border-right:1px solid var(--ink)}
.fact:last-child{border-right:0}
.fact strong{display:block;font-size:15px;margin-bottom:8px}
.fact span{font-size:13px;color:#444}

/* split / quote */
.split{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.quote{font-size:clamp(30px,4.6vw,66px);line-height:1.04;letter-spacing:-.04em}
.copy{font-size:17px;color:#333}
.jp-note{margin-top:22px;color:#777;font-size:14px;letter-spacing:.04em}

/* reviews */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review{background:#fff;padding:30px;border:1px solid var(--line);min-height:220px}
.stars{color:var(--red);letter-spacing:.12em;margin-bottom:18px}

/* price box */
.price-box{background:var(--ink);color:#fff;padding:70px;display:grid;grid-template-columns:1fr auto;gap:40px;align-items:end}
.price-box h2{margin-bottom:14px}
.price-box .eyebrow{color:#d85b60}

/* access */
.access{display:grid;grid-template-columns:1fr 1fr;min-height:460px}
.map{background:#ded7cb;display:grid;place-items:center;border:1px solid var(--line);font-size:12px;letter-spacing:.14em;text-transform:uppercase}
.access-copy{background:#fff;padding:58px}

/* numbered steps */
.steps{counter-reset:step;list-style:none;margin:0;padding:0;border:1px solid var(--ink)}
.steps li{counter-increment:step;display:grid;grid-template-columns:90px 1fr;border-bottom:1px solid var(--ink)}
.steps li:last-child{border-bottom:0}
.steps li:before{content:counter(step,decimal-leading-zero);display:grid;place-items:center;font-size:20px;font-weight:800;border-right:1px solid var(--ink);letter-spacing:-.03em}
.steps .body{padding:26px 30px}
.steps strong{display:block;margin-bottom:6px}
.steps p{margin:0;color:#444;font-size:15px}

/* cards */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);padding:30px}
.card h3{margin-bottom:10px}
.card p,.card li{color:#444;font-size:15px}
.card ul{margin:0;padding-left:18px}
.card li{margin-bottom:6px}

/* faq */
.faq-group{margin-bottom:46px}
.faq-group h3{margin-bottom:16px}
.faq-item{border:1px solid var(--line);background:#fff;margin-bottom:10px}
.faq-item summary{padding:20px 24px;cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:20px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";font-weight:400;font-size:20px;line-height:1}
.faq-item[open] summary:after{content:"\2212"}
.faq-item p{padding:0 24px 22px;margin:0;color:#444}

/* form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:grid;gap:8px;align-content:start}
.field.full{grid-column:1/-1}
.field label{font-size:11px;letter-spacing:.14em;text-transform:uppercase;font-weight:700}
.field input,.field select,.field textarea{border:1px solid var(--line-strong);background:#fff;padding:14px;font:inherit;color:var(--ink);width:100%}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:2px solid var(--red);outline-offset:-1px}
.form-note{font-size:13px;color:#666}

/* notice */
.notice{border:1px solid var(--ink);background:#fff;padding:22px 26px;font-size:14px;color:#333}
.notice strong{text-transform:uppercase;letter-spacing:.1em;font-size:12px;display:block;margin-bottom:8px;color:var(--red)}

/* prose (privacy etc.) */
.prose{max-width:760px}
.prose h3{margin-top:42px}
.prose p,.prose li{color:#333;font-size:15px}

/* footer */
.footer{background:#111;color:#fff;padding:70px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr .6fr .6fr .6fr;gap:40px}
.footer small{color:#aaa}
.footer .eyebrow{color:#d85b60}
.footer p{color:#bbb;font-size:14px;line-height:2.1}
.footer a:hover{color:#fff}
.footer-logo{height:40px;filter:invert(1)}
.footer-bottom{border-top:1px solid #333;margin-top:50px;padding-top:22px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer-bottom a{color:#aaa}
.footer-bottom a:hover{color:#fff}

/* mock badge */
.mock-badge{position:fixed;left:14px;bottom:14px;z-index:50;background:var(--red);color:#fff;font-size:10px;letter-spacing:.12em;padding:8px 12px;text-transform:uppercase}

@media(max-width:900px){
  .hero{padding-top:112px}
  .page-hero{padding:150px 0 60px}
  .hero-grid,.split,.access,.grid2,.form-grid{grid-template-columns:1fr}
  .grid3{grid-template-columns:1fr}
  .hero-visual{min-height:520px}
  .works-grid{grid-template-columns:repeat(2,1fr)}
  .fact-grid{grid-template-columns:repeat(2,1fr)}
  .fact:nth-child(2){border-right:0}
  .fact:nth-child(-n+2){border-bottom:1px solid var(--ink)}
  .review-grid{grid-template-columns:1fr}
  .price-box{grid-template-columns:1fr;padding:42px 28px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .wrap{width:min(calc(100% - 28px),var(--max))}
  .nav{height:68px}
  .brand img{height:42px}
  section{padding:78px 0}
  .hero-grid{gap:34px}
  h1{font-size:52px}
  .page-hero h1{font-size:44px}
  .hero-visual{min-height:430px}
  .works-grid{grid-template-columns:1fr}
  .work{height:390px}
  .fact-grid{grid-template-columns:1fr}
  .fact{border-right:0;border-bottom:1px solid var(--ink)!important}
  .fact:last-child{border-bottom:0!important}
  .section-head{display:block}
  .section-head .btn{margin-top:18px}
  .steps li{grid-template-columns:60px 1fr}
  .footer-grid{grid-template-columns:1fr}
}

/* --- simple版追加コンポーネント --- */
.cta-strip{border:1px solid var(--ink);background:#fff;padding:26px 30px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta-strip p{margin:0;font-weight:700;letter-spacing:-.01em}
.cta-strip small{display:block;font-weight:400;color:#666;margin-top:4px}
.addr-line{font-size:13px;color:#888;letter-spacing:.04em}


/* --- 入口Works: 1行4画像の商品行 --- */
.works-row-label{display:inline-block;font-size:18px;font-weight:800;letter-spacing:-.02em;margin:36px 0 14px}
.works-row-label:hover{color:var(--red)}
.works-grid.cols4{grid-template-columns:repeat(4,1fr)}
.works-grid.cols4 .work{height:280px}
@media(max-width:900px){.works-grid.cols4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.works-grid.cols4{grid-template-columns:repeat(2,1fr)}.works-grid.cols4 .work{height:190px}}

/* --- 黒ヘッダー: Book Nowボタン反転 --- */
header .btn.primary{background:#fff;color:#111;border-color:#fff}
header .btn.primary:hover{background:var(--red);color:#fff;border-color:var(--red)}

/* --- 商品行の価格表示 --- */
.row-price{margin:12px 0 0;font-size:15px;font-weight:700;letter-spacing:-.01em}
.row-price .todo{font-weight:400;color:var(--red);font-size:12px;letter-spacing:.06em;margin-left:8px}

/* --- 商品ページの章リード --- */
.lead{font-size:clamp(22px,2.6vw,34px);line-height:1.12;letter-spacing:-.035em;font-weight:800;margin:0 0 16px;max-width:720px}
.chapter-copy{font-size:16px;color:#444;max-width:680px;margin:0 0 32px}

/* --- 章リード直下の価格 --- */
.price-tag{margin:0 0 26px;font-size:clamp(20px,2.2vw,28px);font-weight:800;letter-spacing:-.03em;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.price-tag.is-tbd{color:var(--red)}
.price-tag .tbd{border:1px dashed var(--red);color:var(--red);padding:5px 10px;font-size:11px;font-weight:700;letter-spacing:.08em}

/* --- 章見出しと価格を同一行に --- */
.chapter-head{display:flex;align-items:baseline;gap:20px;flex-wrap:wrap;margin-bottom:16px}
.chapter-head h2{margin:0}
.chapter-head .price-tag{margin:0;font-size:clamp(15px,1.5vw,20px);gap:10px}
.chapter-head .price-tag .tbd{font-size:10px;padding:4px 8px}

/* --- 択一（Instagram or フォーム） --- */
.choice{display:grid;grid-template-columns:1fr auto 1fr;gap:44px;align-items:start}
.choice-or{align-self:stretch;position:relative;display:flex;align-items:center;justify-content:center;min-width:44px}
.choice-or:before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--line-strong)}
.choice-or span{position:relative;background:var(--paper);padding:14px 0;font-size:12px;font-weight:800;letter-spacing:.16em;color:#777}
@media(max-width:900px){
  .choice{grid-template-columns:1fr;gap:0}
  .choice-or{min-height:88px;width:100%}
  .choice-or:before{left:0;right:0;top:50%;bottom:auto;width:auto;height:1px}
  .choice-or span{padding:0 18px}
}


/* --- hover：アクセントカラー（赤）に統一 --- */
.btn.ghost:hover{background:var(--red);color:#fff;border-color:var(--red)}
.tag:hover{border-color:var(--red);color:var(--red)}
.footer a:hover,.footer-bottom a:hover{color:#d85b60}
.sub a:hover,.chapter-copy a:hover,.steps a:hover,.prose a:hover{color:var(--red)}

/* --- 先方原稿の本文ブロック --- */
.chapter-body{max-width:680px;margin-bottom:32px}
.chapter-body .copy{margin-bottom:16px}
.chapter-body .copy:last-child{margin-bottom:0}
.chapter-body ul{margin:0 0 16px;padding-left:20px}
.chapter-body li{font-size:17px;color:#333;margin-bottom:6px}

/* --- Heroのブランドマーク --- */
.hero-mark{height:400px;display:block;margin:0 auto 28px}
.hero .hero-copy{text-align:center}
.hero .hero-copy h1{font-size:clamp(32px,4.2vw,62px);margin-left:auto;margin-right:auto}
@media(max-width:560px){
  .hero-mark{height:230px;margin-bottom:18px}
  .hero .hero-copy h1{font-size:34px}
}

/* --- ハンバーガーメニュー --- */
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;background:none;border:0;padding:10px 6px;cursor:pointer}
.nav-toggle span{display:block;width:26px;height:2px;background:#fff;margin:5px 0;transition:transform .25s,opacity .2s}
header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
header.nav-open .nav-toggle span:nth-child(2){opacity:0}
header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:900px){
  .nav-toggle{display:block}
  .menu{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;padding:6px 0;margin:0;
    background:rgba(17,17,17,.99);border-top:1px solid #333;
  }
  header.nav-open .menu{display:flex}
  .menu a{padding:17px 20px;border-bottom:1px solid #262626}
  .menu a:last-child{border-bottom:0}
  .wrap.nav{position:relative}
}
@media(max-width:560px){
  .nav-actions .btn.primary{min-height:44px;padding:0 16px;font-size:11px}
  .nav-toggle span{width:24px}
}

/* --- 見出しの副題／章内のサブ分類 --- */
.chapter-head h2 .sub-title{font-size:clamp(15px,1.5vw,20px);font-weight:700;letter-spacing:-.01em;color:#777;white-space:nowrap}
.group-label{font-size:18px;font-weight:800;letter-spacing:-.02em;margin:44px 0 14px}
.group-label:first-of-type{margin-top:8px}
@media(max-width:560px){.chapter-head h2 .sub-title{display:block;white-space:normal;margin-top:6px}}
.works-row-label .row-sub{font-size:13px;font-weight:700;color:#777;letter-spacing:-.01em}
.works-row-label:hover .row-sub{color:var(--red)}

/* --- 当方作成の文言であることの明示（モック用） --- */
.authored-note{margin:16px 0 0;font-size:12px;letter-spacing:.04em;color:var(--red);border-left:2px solid var(--red);padding-left:12px}
.authored-flag{display:inline-block;margin-left:10px;border:1px dashed var(--red);color:var(--red);padding:3px 8px;font-size:10px;letter-spacing:.08em;vertical-align:middle}