/* BETRS × AMOS — The Art of Mahjong
   Reference: HOKUTO (black ground / oversized latin display / hairlines / monochrome photo)
   Brand tokens follow LP brief p.11 (#121212 / #F3F0E9 / #292929 / #A49773) */
:root{
  --bg:#0b0b0b; --bg2:#121212; --panel:#292929; --paper:#f3f0e9; --ink:#121212;
  --text:#ecebe6; --mute:#8d8c86; --gold:#a49773; --gold-hi:#c7b88f;
  --line:rgba(255,255,255,.14); --line-dk:rgba(18,18,18,.18);
  --sans:"Noto Sans JP","Hiragino Sans",system-ui,sans-serif;
  --serif:"Noto Serif JP","Hiragino Mincho ProN",serif;
  --disp:"Inter","Helvetica Neue",Arial,sans-serif;
  --gut:clamp(20px,5vw,72px);
  --hdr:64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--hdr)}
body{background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--gold-hi);outline-offset:3px}
.wrap{padding-inline:var(--gut);max-width:1440px;margin-inline:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- header ---------- */
.hdr{position:fixed;inset:0 0 auto 0;height:var(--hdr);z-index:50;display:flex;align-items:center;justify-content:space-between;padding-inline:var(--gut);
  background:linear-gradient(#0b0b0bcc,#0b0b0b00);transition:background .3s}
.hdr.solid{background:#0b0b0bee;backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
/* WP: ログイン時の管理バー分だけヘッダーを下げる */
.admin-bar .hdr{top:32px}
@media(max-width:782px){.admin-bar .hdr{top:46px}}
.logo{font-family:var(--disp);font-weight:600;letter-spacing:.28em;font-size:14px;display:flex;gap:.9em;align-items:center}
.logo i{font-style:normal;color:var(--gold);letter-spacing:0}
.nav{display:flex;gap:clamp(18px,2.6vw,40px);font-family:var(--disp);font-size:12px;letter-spacing:.18em;font-weight:500}
.nav a{padding:6px 0;position:relative;color:var(--text)}
.nav a::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--gold);transition:width .3s}
.nav a:hover::after,.nav a[aria-current]::after{width:100%}
.menu-btn{display:none;font-family:var(--disp);font-size:12px;letter-spacing:.2em;padding:12px 0}
@media(max-width:820px){
  .menu-btn{display:block}
  .nav{position:fixed;inset:var(--hdr) 0 auto 0;background:#0b0b0bfa;flex-direction:column;gap:0;padding:8px var(--gut) 28px;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .35s;visibility:hidden}
  .nav.open{transform:none;visibility:visible}
  .nav a{padding:18px 0;border-bottom:1px solid var(--line);font-size:13px}
}

/* ---------- type ---------- */
.eyebrow{font-family:var(--disp);font-size:12px;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);display:flex;align-items:center;gap:14px}
.eyebrow::before{content:"";width:36px;height:1px;background:currentColor}
.disp{font-family:var(--disp);font-weight:700;text-transform:uppercase;line-height:.92;letter-spacing:-.045em}
.h2{font-family:var(--serif);font-weight:500;font-size:clamp(28px,3.6vw,48px);line-height:1.5;letter-spacing:.04em}
.lead{color:#cfcec8;max-width:36em}
.mute{color:var(--mute)}
.sm{font-size:13px;line-height:1.8}
.note{font-size:12px;color:var(--mute);line-height:1.8}

/* ---------- buttons ---------- */
.btns{display:flex;flex-wrap:wrap;gap:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:54px;padding:0 30px;font-size:14px;letter-spacing:.12em;font-weight:500;border:1px solid var(--text);transition:.3s;border-radius:2px;text-align:center;line-height:1.5;padding-block:12px}
.btn .ar{width:22px;height:1px;background:currentColor;position:relative;transition:width .3s}
.btn .ar::after{content:"";position:absolute;right:0;top:-3px;width:7px;height:7px;border-top:1px solid currentColor;border-right:1px solid currentColor;transform:rotate(45deg)}
.btn:hover .ar{width:34px}
.btn.fill{background:var(--text);color:var(--ink)}
.btn.fill:hover{background:var(--gold-hi);border-color:var(--gold-hi)}
.btn.line:hover{background:var(--text);color:var(--ink)}
.on-paper .btn{border-color:var(--ink);color:var(--ink)}
.on-paper .btn.fill{background:var(--ink);color:var(--paper)}
.on-paper .btn.fill:hover{background:var(--gold);border-color:var(--gold)}
.on-paper .btn.line:hover{background:var(--ink);color:var(--paper)}
.tlink{font-family:var(--disp);font-size:12px;letter-spacing:.22em;display:inline-flex;align-items:center;gap:14px;padding:8px 0;border-bottom:1px solid currentColor}

/* ---------- hero ---------- */
.hero{position:relative;min-height:max(720px,100svh);display:flex;align-items:flex-end;overflow:hidden;isolation:isolate}
.hero img.bg{position:absolute;top:0;right:0;bottom:0;width:min(78%,1700px);height:100%;object-fit:cover;object-position:70% 50%;z-index:-2;transform:scale(1.05);transform-origin:100% 50%;animation:slow 22s ease-out forwards;-webkit-mask-image:linear-gradient(90deg,transparent 0,#000 34%);mask-image:linear-gradient(90deg,transparent 0,#000 34%)}
@keyframes slow{to{transform:scale(1)}}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(0deg,#0b0b0b 0%,#0b0b0b00 30%)}
.hero .wrap{width:100%;padding-bottom:clamp(40px,8vh,96px);padding-top:calc(var(--hdr) + 40px)}
.hero h1{font-size:clamp(44px,6.8vw,120px);margin:18px 0 28px}
.hero h1 span{display:block}
.hero h1 .o{color:transparent;-webkit-text-stroke:1.5px var(--text)}
.hero .jp{font-family:var(--serif);font-size:clamp(20px,2.4vw,32px);letter-spacing:.14em;margin-bottom:12px}
.hero .sub{color:#cfcec8;max-width:30em;margin-bottom:34px;font-size:15px}
.scroll{position:absolute;right:var(--gut);bottom:40px;writing-mode:vertical-rl;font-family:var(--disp);font-size:11px;letter-spacing:.3em;color:var(--mute);display:flex;align-items:center;gap:14px}
.scroll::after{content:"";width:1px;height:64px;background:linear-gradient(var(--gold),transparent);animation:drip 2.4s infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
@media(max-width:700px){
  .hero{display:block;min-height:0;padding-top:var(--hdr);background:var(--bg)}
  .hero img.bg{position:relative;display:block;width:100%;height:auto;aspect-ratio:5/4;object-fit:cover;object-position:74% 50%;transform:none;animation:none;z-index:0;
    -webkit-mask-image:linear-gradient(180deg,#000 62%,transparent 100%);mask-image:linear-gradient(180deg,#000 62%,transparent 100%)}
  .hero::after{display:none}
  .hero .wrap{padding-top:0;margin-top:-34px;position:relative;padding-bottom:48px}
  .hero h1{font-size:clamp(44px,14vw,76px)}
  .scroll{display:none}
  .btn{width:100%}
}

/* ---------- marquee ---------- */
.marq{border-block:1px solid var(--line);overflow:hidden;white-space:nowrap;padding:22px 0}
.marq div{display:inline-block;animation:mq 38s linear infinite;font-family:var(--disp);font-weight:600;letter-spacing:-.02em;font-size:clamp(28px,4.2vw,60px);text-transform:uppercase;color:transparent;-webkit-text-stroke:1px #77766f}
.marq span{padding-inline:.8em}.marq b{color:var(--gold);-webkit-text-stroke:0;font-weight:400}
@keyframes mq{to{transform:translateX(-50%)}}

/* ---------- section scaffolding ---------- */
.sec{padding-block:clamp(88px,12vw,168px)}
.sec-hd{display:grid;grid-template-columns:1fr;gap:20px;margin-bottom:clamp(40px,6vw,88px)}
.sec-hd .disp{font-size:clamp(44px,8vw,128px)}
.paper{background:var(--paper);color:var(--ink)}
.paper .eyebrow{color:#7d7150}.paper .lead,.paper .mute{color:#555}.paper .note{color:#6b6a65}
.rule{border:0;border-top:1px solid var(--line)}
.paper .rule{border-color:var(--line-dk)}

/* ---------- statement ---------- */
.stmt{display:grid;grid-template-columns:5fr 7fr;gap:clamp(32px,6vw,96px);align-items:start}
.stmt .big{font-family:var(--serif);font-size:clamp(26px,3.5vw,50px);line-height:1.6;letter-spacing:.04em;font-weight:500}
.stmt .big em{font-style:normal;color:var(--gold-hi)}
@media(max-width:820px){.stmt{grid-template-columns:1fr}}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:7fr 5fr;gap:clamp(28px,5vw,80px);align-items:end}
.split.rev{grid-template-columns:5fr 7fr}
.split figure{position:relative;overflow:hidden}
.split figure img{width:100%;height:100%;object-fit:cover}
.cap{font-family:var(--disp);font-size:11px;letter-spacing:.22em;color:var(--mute);margin-top:12px;text-transform:uppercase}
@media(max-width:820px){.split,.split.rev{grid-template-columns:1fr}}

/* ---------- lineup ---------- */
.items{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,2.4vw,40px)}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line-dk)}
.card .ph{background:#fff;aspect-ratio:1/1;display:grid;place-items:center;position:relative;overflow:hidden}
.card .ph img{width:86%;mix-blend-mode:multiply;transition:transform .8s}
.card:hover .ph img{transform:scale(1.04)}
.card .tag{position:absolute;left:16px;top:14px;font-family:var(--disp);font-size:11px;letter-spacing:.2em;color:#7d7150}
.card .bd{padding:28px 28px 32px;display:flex;flex-direction:column;gap:18px;flex:1}
.card h3{font-family:var(--disp);font-weight:700;font-size:clamp(28px,3vw,40px);letter-spacing:-.02em;line-height:1}
.card .kind{font-size:13px;color:#555}
.price{font-family:var(--disp);font-size:30px;font-weight:600;letter-spacing:-.01em}
.price small{font-size:12px;font-weight:400;color:#666;margin-left:6px;letter-spacing:.04em}
.card ul.f{display:grid;gap:8px;font-size:14px;line-height:1.7}
.card ul.f li{padding-left:18px;position:relative}
.card ul.f li::before{content:"";position:absolute;left:0;top:.8em;width:8px;height:1px;background:#7d7150}
.card dl{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;font-size:13px;border-top:1px solid var(--line-dk);padding-top:16px}
.card dt{color:#777}.card dd{font-feature-settings:"tnum"}
.card .go{margin-top:auto;padding-top:8px}
.card .go .btn{width:100%;padding-inline:18px;font-size:13px;letter-spacing:.08em}
.card .go .note{margin-top:10px;text-align:center}
.switch{display:flex;gap:8px;margin-top:-4px}
.switch button{font-size:12px;letter-spacing:.1em;border:1px solid var(--line-dk);padding:6px 14px;border-radius:2px;color:#555}
.switch button[aria-pressed=true]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
@media(max-width:1100px){.items{grid-template-columns:1fr;max-width:560px;margin-inline:auto}}

/* ---------- detail strip ---------- */
.strip{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(12px,1.6vw,24px)}
.strip figure{overflow:hidden;position:relative;background:#111}
.strip img{width:100%;height:100%;object-fit:cover}
.s1{grid-column:1/8}.s2{grid-column:8/13}.s3{grid-column:1/6}.s4{grid-column:6/13}
.strip .s1,.strip .s4{aspect-ratio:3/2}.strip .s2{aspect-ratio:4/5}.strip .s3{aspect-ratio:4/5}
.strip figcaption{position:absolute;left:16px;bottom:14px;font-family:var(--disp);font-size:11px;letter-spacing:.2em;text-shadow:0 1px 8px #000}
@media(max-width:700px){.strip{grid-template-columns:1fr}.strip figure{grid-column:1!important;aspect-ratio:4/3!important}}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.steps li{padding:28px 24px 36px 0;border-right:1px solid var(--line);padding-left:24px}
.steps li:first-child{padding-left:0}.steps li:last-child{border-right:0}
.steps .n{font-family:var(--disp);font-size:44px;font-weight:300;color:var(--gold);line-height:1;letter-spacing:-.03em}
.steps h4{font-family:var(--serif);font-weight:500;font-size:19px;margin:18px 0 8px;letter-spacing:.06em}
.steps p{font-size:14px;color:#bdbcb6;line-height:1.8}
@media(max-width:820px){.steps{grid-template-columns:1fr}.steps li{border-right:0;border-bottom:1px solid var(--line);padding:22px 0;display:grid;grid-template-columns:64px 1fr;gap:0 8px}.steps h4{margin-top:4px}.steps li:first-child{padding-left:0}.steps li{padding-left:0}.steps .n{grid-row:1/3;font-size:34px}}

/* ---------- soon ---------- */
.soon{border:1px solid var(--line);padding:clamp(28px,4vw,56px);display:grid;grid-template-columns:auto 1fr;gap:clamp(20px,4vw,64px);align-items:center;margin-top:clamp(48px,6vw,88px);position:relative;overflow:hidden}
.soon .disp{font-size:clamp(38px,6vw,88px);color:transparent;-webkit-text-stroke:1px var(--gold)}
.soon::before{content:"";position:absolute;inset:0;background:
 linear-gradient(45deg,transparent 48%,rgba(164,151,115,.10) 49%,rgba(164,151,115,.10) 51%,transparent 52%) 0 0/46px 46px,
 linear-gradient(-45deg,transparent 48%,rgba(164,151,115,.10) 49%,rgba(164,151,115,.10) 51%,transparent 52%) 0 0/46px 46px;pointer-events:none;mask-image:linear-gradient(90deg,transparent,#000 70%)}
.soon>*{position:relative}
@media(max-width:820px){.soon{grid-template-columns:1fr}}

/* ---------- faq ---------- */
.faq details{border-bottom:1px solid var(--line-dk)}
.faq summary{list-style:none;cursor:pointer;padding:26px 56px 26px 0;position:relative;font-family:var(--serif);font-size:clamp(17px,1.7vw,21px);letter-spacing:.04em;line-height:1.7}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after,.faq summary::before{content:"";position:absolute;right:6px;top:50%;width:18px;height:1px;background:var(--ink);transition:transform .3s}
.faq summary::before{transform:rotate(90deg)}
.faq details[open] summary::before{transform:rotate(0)}
.faq .a{padding:0 56px 28px 0;color:#444;font-size:15px;max-width:48em}
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:clamp(28px,6vw,96px)}
@media(max-width:820px){.faq-grid{grid-template-columns:1fr}}

/* ---------- final cta ---------- */
.final{text-align:left;position:relative;overflow:hidden;isolation:isolate}
.final .bgd{position:absolute;inset:0;z-index:-1;opacity:.42}
.final .bgd img{width:100%;height:100%;object-fit:cover}
.final::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,var(--bg),#0b0b0b99 40%,var(--bg))}
.final h2{font-size:clamp(46px,9vw,150px);margin-bottom:36px}
.final h2 .o{color:transparent;-webkit-text-stroke:1.5px var(--text)}

/* ---------- footer ---------- */
.ftr{border-top:1px solid var(--line);padding:56px 0 40px;font-size:13px;color:var(--mute)}
.ftr .row{display:flex;flex-wrap:wrap;gap:32px 64px;justify-content:space-between;margin-bottom:40px}
.ftr .logo{color:var(--text);margin-bottom:14px}
.ftr nav{display:flex;flex-wrap:wrap;gap:12px 28px;font-family:var(--disp);letter-spacing:.14em;font-size:12px}
.ftr a:hover{color:var(--text)}

/* ---------- sticky bar (mobile) ---------- */
.bar{position:fixed;inset:auto 0 0 0;z-index:40;display:none;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);transform:translateY(110%);transition:transform .35s}
.bar.show{transform:none}
.bar a{background:#0b0b0bf2;backdrop-filter:blur(8px);min-height:56px;display:grid;place-items:center;font-size:13px;letter-spacing:.1em;font-weight:500}
.bar a.p{background:var(--text);color:var(--ink)}
@media(max-width:820px){.bar{display:grid}body.has-bar{padding-bottom:0}}

/* ---------- concept page ---------- */
.phero{padding-top:calc(var(--hdr) + clamp(72px,12vw,160px));padding-bottom:clamp(64px,8vw,120px);position:relative;overflow:hidden}
.phero h1{font-size:clamp(38px,11vw,200px);letter-spacing:-.055em}
.phero h1 .o{color:transparent;-webkit-text-stroke:1.5px var(--text)}
.phero .jp{font-family:var(--serif);font-size:clamp(20px,2.6vw,34px);letter-spacing:.14em;margin-top:28px}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}
.pillars article{padding:36px clamp(16px,2vw,32px) 48px;border-right:1px solid var(--line)}
.pillars article:first-child{padding-left:0}.pillars article:last-child{border-right:0}
.pillars .n{font-family:var(--disp);font-size:clamp(56px,6vw,96px);font-weight:300;letter-spacing:-.05em;color:var(--gold);line-height:1}
.pillars h3{font-family:var(--serif);font-weight:500;font-size:clamp(20px,2vw,26px);line-height:1.6;margin:22px 0 14px;letter-spacing:.05em}
.pillars p{color:#bdbcb6;font-size:15px}
@media(max-width:820px){.pillars{grid-template-columns:1fr}.pillars article{border-right:0;border-bottom:1px solid var(--line);padding-inline:0}}
.duo{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line-dk)}
.duo article{padding:clamp(28px,4vw,64px) clamp(0px,3vw,48px) clamp(28px,4vw,64px) 0}
.duo article+article{padding-left:clamp(0px,3vw,48px);border-left:1px solid var(--line-dk)}
.duo h3{font-family:var(--disp);font-weight:700;font-size:clamp(40px,5.4vw,84px);letter-spacing:-.04em;line-height:1;margin-bottom:8px}
.duo .role{font-size:13px;color:#6b6a65;margin-bottom:26px;letter-spacing:.06em}
.duo p{color:#333;margin-bottom:14px}
.duo dl{display:grid;grid-template-columns:auto 1fr;gap:6px 20px;font-size:13px;margin-top:22px;padding-top:18px;border-top:1px solid var(--line-dk)}
.duo dt{color:#777}
@media(max-width:820px){.duo{grid-template-columns:1fr}.duo article,.duo article+article{padding-inline:0;border-left:0}.duo article+article{border-top:1px solid var(--line-dk)}}
.quote{font-family:var(--serif);font-size:clamp(28px,4.6vw,68px);line-height:1.55;letter-spacing:.06em;font-weight:500}
.quote em{font-style:normal;color:var(--gold-hi)}
.fullimg{position:relative;height:min(78vh,760px);overflow:hidden}
.fullimg img{width:100%;height:120%;object-fit:cover;position:absolute;inset:-10% 0 0 0;will-change:transform}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(28px);transition:opacity 1s cubic-bezier(.2,.7,.2,1),transform 1s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.12s}.rv.d2{transition-delay:.24s}.rv.d3{transition-delay:.36s}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}.rv{opacity:1;transform:none;transition:none}
  .hero img.bg,.marq div,.scroll::after{animation:none}.hero img.bg{transform:none}
}

.h2,.quote,.big,.lead,.jp,.sub{text-wrap:balance}