/* 仙道家ヒセイ — design system
   tokens → base → layout → components */
:root{
  --navy:#0D1626; --navy-2:#16233a; --navy-3:#22324d;
  --paper:#F6F2E9; --paper-2:#ECE6D8; --ink:#1A2234; --ink-soft:#4a5266;
  --brass:#B9985A;          /* on dark */
  --brass-deep:#7A5E2A;     /* on light, AA */
  --line-l:rgba(26,34,52,.16); --line-d:rgba(246,242,233,.18);
  --serif:"Noto Serif JP","Yu Mincho","Hiragino Mincho ProN",serif;
  --sans:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
  --radius:10px; --wrap:1080px; --gut:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.9 var(--sans);letter-spacing:.02em;overflow-wrap:anywhere}
img,svg{max-width:100%;display:block}
a{color:var(--brass-deep);text-underline-offset:.2em}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid #d9b45f;outline-offset:3px;border-radius:3px}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.5;margin:0 0 .6em;letter-spacing:.04em}
h1{font-size:clamp(1.9rem,6vw,3rem)}
h2{font-size:clamp(1.5rem,4.2vw,2.1rem)}
h3{font-size:1.15rem}
p{margin:0 0 1.1em}
ul{margin:0 0 1.2em;padding-left:1.3em}
li{margin-bottom:.35em}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.skip{position:absolute;left:-999px;top:0;background:#fff;color:#000;padding:10px 14px;z-index:100}
.skip:focus{left:8px;top:8px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(13,22,38,.96);color:var(--paper);border-bottom:1px solid var(--line-d);backdrop-filter:blur(6px)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;min-height:62px;gap:12px}
.logo{font-family:var(--serif);font-size:1.15rem;color:var(--paper);text-decoration:none;letter-spacing:.12em;white-space:nowrap}
.logo small{display:block;font-size:.62rem;letter-spacing:.1em;color:var(--brass);line-height:1.3}
.nav-toggle{background:none;border:1px solid var(--line-d);color:var(--paper);border-radius:8px;padding:8px 14px;font:inherit;font-size:.9rem;cursor:pointer}
.nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--navy);border-bottom:1px solid var(--line-d);padding:8px var(--gut) 18px}
.nav.open{display:block}
.nav a{display:block;color:var(--paper);text-decoration:none;padding:12px 0;border-bottom:1px solid var(--line-d);font-size:1rem}
.nav a[aria-current="page"]{color:var(--brass)}
.nav a:hover{color:var(--brass)}
@media(min-width:960px){
  .nav-toggle{display:none}
  .nav{display:flex;position:static;background:none;border:0;padding:0;gap:18px}
  .nav a{border:0;padding:6px 0;font-size:.88rem;white-space:nowrap}
}

/* sections */
.section{padding:72px 0}
.section.dark{background:var(--navy);color:var(--paper)}
.section.dark a:not(.btn){color:var(--brass)}
.section.alt{background:var(--paper-2)}
.eyebrow{font-family:var(--serif);color:var(--brass-deep);letter-spacing:.2em;font-size:.82rem;margin-bottom:.8em;display:block}
.dark .eyebrow{color:var(--brass)}
.lead{font-size:1.05rem;color:var(--ink-soft)}
.dark .lead{color:rgba(246,242,233,.82)}
.center{text-align:center}
.narrow{max-width:720px}
.rule{width:48px;height:1px;background:var(--brass);margin:0 0 28px}
.center .rule{margin-left:auto;margin-right:auto}

/* hero */
.hero{position:relative;background:var(--navy);color:var(--paper);overflow:hidden;padding:64px 0 72px}
.hero::before{content:"";position:absolute;inset:0;
  background:
   radial-gradient(1.5px 1.5px at 12% 22%,rgba(246,242,233,.8),transparent 60%),
   radial-gradient(1px 1px at 28% 68%,rgba(246,242,233,.6),transparent 60%),
   radial-gradient(1.5px 1.5px at 46% 14%,rgba(246,242,233,.7),transparent 60%),
   radial-gradient(1px 1px at 63% 80%,rgba(246,242,233,.5),transparent 60%),
   radial-gradient(1px 1px at 86% 36%,rgba(246,242,233,.6),transparent 60%),
   radial-gradient(900px 500px at 85% 0%,#22324d 0%,transparent 65%);}
.hero .moon{position:absolute;right:-70px;top:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%,rgba(246,242,233,.16),rgba(185,152,90,.08) 60%,transparent 70%);
  border:1px solid rgba(185,152,90,.3)}
.hero .wrap{position:relative;display:grid;gap:36px}
.hero h1{margin-bottom:.35em}
.hero .name{font-family:var(--serif);letter-spacing:.3em;color:var(--brass);font-size:.95rem;margin-bottom:1.2em}
.hero .sub{color:rgba(246,242,233,.86);max-width:34em}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.photo-slot{aspect-ratio:4/5;border:1px dashed rgba(185,152,90,.6);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;text-align:center;color:var(--brass);font-size:.9rem;padding:20px;background:rgba(246,242,233,.04);max-width:380px;width:100%}
.photo-slot small{display:block;opacity:.8;margin-top:6px}
.light .photo-slot,.photo-slot.on-light{color:var(--brass-deep);border-color:var(--brass-deep);background:rgba(122,94,42,.05)}
.photo-slot img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius)}
@media(min-width:860px){.hero .wrap{grid-template-columns:1.3fr .9fr;align-items:center}.hero{padding:96px 0}}

/* page head */
.page-head{background:var(--navy);color:var(--paper);padding:48px 0 44px}
.page-head p{color:rgba(246,242,233,.85);max-width:40em;margin:0}
.crumbs{font-size:.8rem;color:rgba(246,242,233,.7);margin-bottom:14px}
.crumbs a{color:var(--brass)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:12px 26px;border-radius:999px;border:1px solid var(--brass);background:var(--brass);color:#14100a;font:600 1rem var(--sans);text-decoration:none;cursor:pointer;transition:.15s}
.btn:hover{background:#cdae74;text-decoration:none}
.btn.ghost{background:transparent;color:var(--paper)}
.btn.ghost:hover{background:rgba(185,152,90,.15)}
.light .btn.ghost,.btn.ghost.on-light{color:var(--navy);border-color:var(--navy)}
.light .btn.ghost:hover{background:rgba(13,22,38,.06)}
.btn.navy{background:var(--navy);border-color:var(--navy);color:var(--paper)}
.btn.navy:hover{background:var(--navy-3)}
.btn.small{min-height:42px;padding:8px 18px;font-size:.92rem}
.btn.is-placeholder{opacity:.75;border-style:dashed;cursor:not-allowed}

/* grid & cards */
.grid{display:grid;gap:18px}
@media(min-width:700px){.grid.c2{grid-template-columns:repeat(2,1fr)}.grid.c3{grid-template-columns:repeat(3,1fr)}}
@media(min-width:900px){.grid.c4{grid-template-columns:repeat(4,1fr)}}
.card{background:#fff;border:1px solid var(--line-l);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column}
.dark .card{background:var(--navy-2);border-color:var(--line-d)}
.card h3{margin-bottom:.4em}
.card p{font-size:.95rem;color:var(--ink-soft)}
.dark .card p{color:rgba(246,242,233,.8)}
.card .push{margin-top:auto}
.term{font-family:var(--serif);font-size:1.15rem;color:var(--navy);margin-bottom:.25em;display:block}
.num{font-family:var(--serif);color:var(--brass-deep);font-size:.85rem;letter-spacing:.2em;display:block;margin-bottom:.4em}
.dark .num{color:var(--brass)}
.card .price{font-family:var(--serif);font-size:1.4rem;color:var(--navy);margin:.2em 0 .6em}
.price small{font-family:var(--sans);font-size:.78rem;color:var(--ink-soft)}
.badge{display:inline-block;font-size:.76rem;border:1px solid currentColor;border-radius:999px;padding:1px 12px;line-height:1.7;margin-bottom:10px;align-self:flex-start;font-weight:500}
.badge.available{color:#2f6b45}
.badge.preparing,.badge.paused{color:var(--brass-deep)}
.badge.closed{color:#7a3b3b}
.badge.event_only{color:#3a5a85}
.dark .badge.available{color:#8fd1a6}
.dark .badge.preparing{color:var(--brass)}
.ph{background:rgba(185,152,90,.2);border-radius:4px;padding:0 5px;font-size:.88em;white-space:nowrap}
.dark .ph{background:rgba(185,152,90,.25)}
.checks{list-style:none;padding:0}
.checks li{padding-left:1.8em;position:relative}
.checks li::before{content:"";position:absolute;left:.3em;top:.78em;width:.55em;height:.55em;border-radius:50%;border:1.5px solid var(--brass-deep)}
.dark .checks li::before{border-color:var(--brass)}

/* start steps (home) */
.steps{display:grid;gap:0;border:1px solid var(--line-l);border-radius:var(--radius);overflow:hidden;background:#fff}
.step{display:grid;gap:8px;padding:22px 24px;border-bottom:1px solid var(--line-l)}
.step:last-child{border-bottom:0}
.step h3{margin:0;color:var(--navy)}
.step .items{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:.95rem}
@media(min-width:800px){.step{grid-template-columns:160px 1fr;align-items:start;gap:28px}}

/* curriculum */
.curr{list-style:none;padding:0;margin:0;display:grid;gap:14px;counter-reset:c}
@media(min-width:760px){.curr{grid-template-columns:repeat(2,1fr)}}
.curr li{background:#fff;border:1px solid var(--line-l);border-radius:var(--radius);padding:18px 20px 18px 74px;position:relative;margin:0}
.curr li::before{counter-increment:c;content:counter(c,decimal-leading-zero);position:absolute;left:18px;top:14px;font-family:var(--serif);font-size:1.9rem;color:var(--brass-deep);line-height:1.3}
.curr b{display:block;font-family:var(--serif);color:var(--navy);font-size:1.05rem}
.curr span{font-size:.92rem;color:var(--ink-soft)}
.curr.design li{border-style:dashed;background:transparent;color:var(--ink-soft)}
.timeline{position:relative;list-style:none;padding:0 0 0 22px;border-left:1px solid var(--brass-deep)}
.timeline li{margin-bottom:1.2em;position:relative}
.timeline li::before{content:"";position:absolute;left:-28px;top:.7em;width:11px;height:11px;border-radius:50%;background:var(--paper);border:2px solid var(--brass-deep)}

/* info table */
.info{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line-l);border-radius:var(--radius);font-size:.95rem}
.info th,.info td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line-l);vertical-align:top}
.info th{width:9em;color:var(--ink-soft);font-weight:500;background:rgba(0,0,0,.02)}
.info tr:last-child th,.info tr:last-child td{border-bottom:0}
@media(max-width:600px){.info th,.info td{display:block;width:auto}.info th{border-bottom:0;padding-bottom:2px}}

/* notice */
.notice{border-left:3px solid var(--brass);background:rgba(185,152,90,.12);padding:16px 20px;border-radius:0 var(--radius) var(--radius) 0;font-size:.95rem;margin:0 0 1.4em}
.notice p:last-child{margin:0}
.tag{display:inline-block;font-size:.72rem;letter-spacing:.08em;padding:0 10px;border-radius:4px;background:var(--navy);color:var(--paper);margin-right:8px;vertical-align:.1em}
.tag.h{background:var(--brass-deep)}
.tag.p{background:#3a5a85}

/* faq */
details.faq{background:#fff;border:1px solid var(--line-l);border-radius:var(--radius);margin-bottom:10px}
details.faq summary{cursor:pointer;padding:16px 48px 16px 20px;font-weight:500;list-style:none;position:relative}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";position:absolute;right:20px;top:12px;font-size:1.4rem;color:var(--brass-deep)}
details.faq[open] summary::after{content:"−"}
details.faq .a{padding:0 20px 8px;color:var(--ink-soft)}

/* events / articles list */
.item{display:grid;gap:6px;background:#fff;border:1px solid var(--line-l);border-radius:var(--radius);padding:20px 22px;margin-bottom:12px}
.item .date{font-family:var(--serif);color:var(--brass-deep);font-size:1.05rem}
.empty{border:1px dashed var(--brass-deep);border-radius:var(--radius);padding:28px;text-align:center;color:var(--ink-soft);background:rgba(185,152,90,.06)}
.empty p:last-child{margin:0}
.past .item{opacity:.8}

/* form */
form.contact{display:grid;gap:18px}
label{font-weight:500;display:block;margin-bottom:6px;font-size:.95rem}
input,select,textarea{width:100%;font:inherit;font-size:1rem;padding:12px 14px;border:1px solid #8b8f99;border-radius:8px;background:#fff;color:var(--ink)}
textarea{min-height:170px;resize:vertical}
.form-msg{padding:14px 16px;border-radius:8px;background:rgba(185,152,90,.15);display:none}
.form-msg.show{display:block}
.hp{position:absolute;left:-9999px}

/* footer */
.site-footer{background:#080f1b;color:rgba(246,242,233,.8);padding:56px 0 32px;font-size:.9rem}
.site-footer a{color:var(--paper)}
.foot-grid{display:grid;gap:28px}
@media(min-width:800px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr}}
.site-footer h2{font-size:.9rem;color:var(--brass);letter-spacing:.15em}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer small{display:block;margin-top:32px;opacity:.7}
.disclaimer{margin-top:24px;font-size:.8rem;opacity:.75;line-height:1.7}

.prose h2{margin-top:2.2em;font-size:1.35rem;border-bottom:1px solid var(--line-l);padding-bottom:.4em}
.prose h2:first-child{margin-top:0}
.sticky-cta{position:fixed;left:0;right:0;bottom:0;background:rgba(13,22,38,.97);padding:10px var(--gut);display:flex;gap:10px;z-index:40;border-top:1px solid var(--line-d)}
.sticky-cta .btn{flex:1;min-height:46px;padding:8px}
@media(min-width:860px){.sticky-cta{display:none}}
body.has-sticky{padding-bottom:68px}
@media(min-width:860px){body.has-sticky{padding-bottom:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}