/* ============================================================
   ASTRAL BOOKWORKS — 原石を、磨く。
   濃紺 × 星の光（淡いシアン）× 原石の輝き（シャンパンゴールド）
   ============================================================ */
:root{
  color-scheme:dark;
  --navy-950:#070d1c;
  --navy-900:#0a1328;
  --navy-850:#0e1a33;
  --navy-800:#13223f;
  --line:#26365a;
  --line-soft:#1c2a47;
  --ink:#edf0f5;
  --ink-2:#c9d1de;
  --muted:#9aa7bc;
  --cyan:#9fe3ec;
  --cyan-dim:#5fb9c6;
  --gold:#dcc79d;
  --gold-deep:#b89f6e;
  --on-cyan:#07192a;
  --radius:2px;
  --cut:14px;
  --wrap:1120px;
  --gutter:clamp(16px,4vw,40px);
  --f-body:'Zen Kaku Gothic New','Hiragino Sans','Yu Gothic','Meiryo',system-ui,sans-serif;
  --f-head:'Shippori Mincho','Hiragino Mincho ProN','Yu Mincho',serif;
  --f-latin:'Cormorant Garamond','Times New Roman',serif;
  --header-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--navy-900);color:var(--ink);
  font-family:var(--f-body);font-size:16px;line-height:1.9;
  font-feature-settings:"palt" 0;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--f-head);font-weight:600;text-wrap:balance;letter-spacing:.04em;line-height:1.5;margin:0}
p{margin:0}
::selection{background:var(--cyan);color:var(--on-cyan)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--cyan);color:var(--on-cyan);padding:8px 14px;text-decoration:none}
.skip:focus{top:12px}

/* ---------- backdrop (fixed): stars + scene layers ---------- */
.sky{position:fixed;inset:0;z-index:-1;pointer-events:none;background:var(--navy-900)}
.sky canvas{position:absolute;inset:0;width:100%;height:100%}
.scene-layer{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease}
.scene-layer.l-hero{background:radial-gradient(60% 55% at 72% 34%,#1d3a5c80,transparent 70%),radial-gradient(50% 50% at 8% 90%,#1a2a5260,transparent 70%)}
.scene-layer.l-works{background:radial-gradient(45% 55% at 26% 50%,#3a331f55,transparent 70%),radial-gradient(60% 60% at 90% 10%,#15294a70,transparent 70%)}
.scene-layer.l-editing{background:radial-gradient(55% 55% at 78% 55%,#0f3f4c66,transparent 70%),radial-gradient(40% 40% at 10% 15%,#1b2c5460,transparent 70%)}
.scene-layer.l-author{background:radial-gradient(60% 60% at 50% 40%,#1a2d4d70,transparent 70%)}
body[data-scene="hero"] .l-hero,
body[data-scene="works"] .l-works,
body[data-scene="editing"] .l-editing,
body[data-scene="author"] .l-author{opacity:1}

/* ---------- layout ---------- */
.wrap{width:100%;max-width:calc(var(--wrap) + var(--gutter)*2);margin-inline:auto;padding-inline:var(--gutter)}
main{position:relative;display:block}
.section{position:relative;z-index:1;padding-block:clamp(72px,11vw,128px)}
.eyebrow{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;font:500 14px/1.4 var(--f-latin);letter-spacing:.22em;text-transform:uppercase;color:var(--cyan)}
.eyebrow .jp{font:500 12px var(--f-body);letter-spacing:.12em;color:var(--muted);text-transform:none}
.h2{font-size:clamp(24px,3.2vw,34px);margin-top:14px}
.lead{color:var(--ink-2);font-size:15.5px;line-height:2.05;max-width:36em;margin-top:18px}
.note{font-size:13px;color:var(--muted);line-height:1.9}

/* ---------- header ---------- */
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;background:#0a1328d9;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid #ffffff12}
.head-inner{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font:600 15px var(--f-latin);letter-spacing:.2em;white-space:nowrap}
.brand img{width:34px;height:34px;border-radius:50%}
.nav{display:flex;align-items:center;gap:26px}
.nav a{font-size:13.5px;letter-spacing:.08em;text-decoration:none;color:var(--ink-2);padding-block:6px}
.nav a:hover{color:var(--cyan)}
.nav a[aria-current="page"]{color:var(--cyan)}
.nav .nav-cta{border:1px solid #9fe3ec66;padding:8px 14px;color:var(--cyan)}
.nav .nav-cta:hover{background:#9fe3ec14}
.menu-toggle{display:none;background:none;border:1px solid var(--line);color:var(--ink);padding:8px 12px;font:inherit;font-size:13px;cursor:pointer}

/* ---------- buttons (facet-cut corners) ---------- */
.btn{
  --c:var(--cut);
  display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:12px 24px;
  font:700 14.5px/1.4 var(--f-body);letter-spacing:.06em;text-decoration:none;cursor:pointer;border:0;
  clip-path:polygon(var(--c) 0,100% 0,100% calc(100% - var(--c)),calc(100% - var(--c)) 100%,0 100%,0 var(--c));
  transition:background .25s,color .25s,transform .25s;
}
.btn:hover{transform:translateY(-2px)}
.btn-cyan{background:var(--cyan);color:var(--on-cyan)}
.btn-cyan:hover{background:#c2f0f5}
.btn-gold{background:var(--gold);color:#1d170b}
.btn-gold:hover{background:#ecdcb9}
.btn-ghost{background:#ffffff0d;color:var(--ink);box-shadow:inset 0 0 0 1px #ffffff30}
.btn-ghost:hover{background:#ffffff18}
.btn .ext{font-size:.85em;opacity:.8}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
.text-link{color:var(--cyan);text-underline-offset:4px}
.text-link:hover{color:#c2f0f5}

/* ---------- HERO ---------- */
.hero{position:relative;z-index:1;padding-block:clamp(40px,7vw,88px) clamp(56px,8vw,96px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:center;gap:clamp(24px,4vw,56px)}
.hero-copy{position:relative;z-index:2}
.hero h1{margin-top:22px}
.hero h1 .copy{display:block;font-size:clamp(34px,5.2vw,58px);line-height:1.35;letter-spacing:.08em}
.hero h1 .copy em{font-style:normal;color:var(--gold)}
.hero h1 .sub{display:block;margin-top:14px;font:500 clamp(14px,1.5vw,16px)/1.7 var(--f-body);letter-spacing:.06em;color:var(--ink-2)}
.hero h1 .sub .latin{white-space:nowrap;font-family:var(--f-latin);font-size:1.12em;letter-spacing:.1em;color:var(--cyan)}
.hero-lead{margin-top:22px;color:var(--ink-2);font-size:15px;line-height:2.1;max-width:30em}
.gates{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:34px;max-width:560px}
.gate{
  --c:18px;position:relative;display:flex;flex-direction:column;gap:4px;padding:18px 20px 18px;text-decoration:none;
  clip-path:polygon(var(--c) 0,100% 0,100% calc(100% - var(--c)),calc(100% - var(--c)) 100%,0 100%,0 var(--c));
  transition:transform .25s,background .25s;
}
.gate:hover{transform:translateY(-3px)}
.gate small{font:500 13px/1.3 var(--f-latin);letter-spacing:.2em;text-transform:uppercase;opacity:.85}
.gate strong{font:700 17px/1.5 var(--f-body);letter-spacing:.05em}
.gate span{font-size:12.5px;line-height:1.7;opacity:.85}
.gate-read{background:var(--gold);color:#1d170b}
.gate-read:hover{background:#ecdcb9}
.gate-edit{background:var(--cyan);color:var(--on-cyan)}
.gate-edit:hover{background:#c2f0f5}

.gem-stage{position:relative;aspect-ratio:1/1;width:100%;max-width:520px;justify-self:center}
.gem-stage::before{content:"";position:absolute;inset:8%;border-radius:50%;background:radial-gradient(circle at 50% 48%,#9fe3ec26,#dcc79d12 38%,transparent 66%);filter:blur(6px)}
.gem-stage canvas{position:relative;width:100%;height:100%;display:block;touch-action:pan-y}
.gem-caption{position:absolute;right:0;bottom:4%;font:italic 500 14px var(--f-latin);letter-spacing:.14em;color:var(--muted)}

/* ---------- beam overlay ---------- */
.beams{position:absolute;left:0;top:0;width:100%;z-index:0;pointer-events:none;overflow:visible}
.beams path.track{fill:none;stroke:#9fe3ec1f;stroke-width:1}
.beams path.ray{fill:none;stroke-width:1.6;stroke-linecap:round;filter:drop-shadow(0 0 4px #9fe3ecaa)}
.beams path.ray-works{stroke:url(#beamGold)}
.beams path.ray-editing{stroke:url(#beamCyan)}
.node{display:inline-block;width:11px;height:11px;transform:rotate(45deg);border:1px solid var(--muted);background:var(--navy-900);flex:none;transition:background .5s,border-color .5s,box-shadow .5s}
.node.lit{border-color:var(--cyan);background:var(--cyan);box-shadow:0 0 14px 3px #9fe3ec88}
.node.gold.lit{border-color:var(--gold);background:var(--gold);box-shadow:0 0 14px 3px #dcc79d88}

.eyebrow.node-end .node{order:2;margin-left:auto}
/* ---------- WORKS ---------- */
.work{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(28px,5vw,72px);align-items:center;margin-top:44px}
.cover-frame{position:relative;justify-self:center;width:min(100%,400px)}
.cover-frame::after{content:"";position:absolute;inset:-10% -14%;z-index:-1;background:radial-gradient(closest-side,#dcc79d2e,transparent);}
.cover-frame img{width:100%;aspect-ratio:5/8;object-fit:cover;box-shadow:0 30px 60px #000a,0 0 0 1px #ffffff14}
.work-meta{font:500 13px/1.4 var(--f-latin);letter-spacing:.2em;color:var(--gold);text-transform:uppercase}
.work h3{font-size:clamp(26px,3.4vw,36px);margin-top:14px}
.work .subtitle{margin-top:6px;color:var(--gold);font-size:15px;letter-spacing:.06em}
.work-desc{margin-top:22px;color:var(--ink-2);font-size:15px;line-height:2.1;max-width:34em}
.work-origin{margin-top:18px;font-size:13.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:16px;max-width:36em}
.stats{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:24px}
.stat strong{display:block;font:600 26px/1.2 var(--f-latin);color:var(--cyan);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.stat span{font-size:12px;color:var(--muted)}
.work .btn-row{margin-top:28px}

/* ---------- EDITING (top summary) ---------- */
.edit-panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,64px);align-items:start;margin-top:40px}
.facet-list{list-style:none;margin:0;padding:0;display:grid;gap:0;border-top:1px solid var(--line)}
.facet-list li{display:grid;grid-template-columns:22px 1fr;gap:12px;align-items:baseline;padding:15px 2px;border-bottom:1px solid var(--line);font-size:15px;line-height:1.8}
.facet-list li::before{content:"";width:8px;height:8px;transform:translateY(-2px) rotate(45deg);border:1px solid var(--cyan);justify-self:center}
.edit-box{--c:20px;background:#0f1d38e6;box-shadow:inset 0 0 0 1px #9fe3ec33;padding:clamp(24px,3.5vw,36px);clip-path:polygon(var(--c) 0,100% 0,100% calc(100% - var(--c)),calc(100% - var(--c)) 100%,0 100%,0 var(--c))}
.edit-box h3{font-size:20px}
.edit-box p{margin-top:12px;color:var(--ink-2);font-size:14.5px;line-height:2}
.edit-box .btn-row{margin-top:24px}

/* ---------- AUTHOR teaser ---------- */
.author-teaser{display:grid;grid-template-columns:180px 1fr;gap:clamp(24px,4vw,48px);align-items:center;margin-top:36px;max-width:880px}
.avatar{width:180px;aspect-ratio:1;object-fit:cover;border-radius:50%;box-shadow:0 0 0 1px #dcc79d55,0 0 0 8px #dcc79d10}
.author-teaser .name{font-family:var(--f-head);font-size:22px;letter-spacing:.08em}
.author-teaser .name .latin{display:block;font:500 15px var(--f-latin);letter-spacing:.2em;color:var(--gold);margin-top:2px}
.author-teaser p{margin-top:14px;color:var(--ink-2);font-size:15px;line-height:2}
.author-teaser .text-link{display:inline-block;margin-top:14px;font-size:14.5px}

/* ---------- final gates ---------- */
.final{text-align:center}
.final .h2{margin-inline:auto}
.final .lead{margin-inline:auto}
.final .gates{margin-inline:auto;text-align:left}

/* ---------- sub pages ---------- */
.page-hero{position:relative;z-index:1;padding-block:clamp(48px,8vw,96px) clamp(32px,5vw,56px)}
.page-hero h1{font-size:clamp(28px,4vw,42px);margin-top:18px}
.page-hero h1 .latin{display:block;font:500 clamp(16px,1.8vw,19px)/1.5 var(--f-latin);letter-spacing:.22em;color:var(--gold);margin-top:8px}
.page-hero h1 .yomi{display:inline-block;font-size:.62em;letter-spacing:.08em;color:var(--ink-2)}
.crumb{font-size:12.5px;color:var(--muted)}
.crumb a{color:var(--muted);text-underline-offset:3px}
.crumb a:hover{color:var(--cyan)}
.block{position:relative;z-index:1;padding-block:clamp(48px,7vw,84px);border-top:1px solid var(--line-soft)}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,5vw,64px);margin-top:32px}
.card{--c:16px;background:#0f1d38d9;box-shadow:inset 0 0 0 1px var(--line);padding:24px 26px;clip-path:polygon(var(--c) 0,100% 0,100% calc(100% - var(--c)),calc(100% - var(--c)) 100%,0 100%,0 var(--c))}
.card h3{font-size:17px;letter-spacing:.05em}
.card p,.card li{font-size:14.5px;color:var(--ink-2);line-height:1.95}
.card p{margin-top:10px}
.card ul{margin:10px 0 0;padding-left:1.2em}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:32px}
.kv{display:grid;grid-template-columns:9em 1fr;border-top:1px solid var(--line);margin-top:28px}
.kv dt,.kv dd{padding:14px 4px;border-bottom:1px solid var(--line);margin:0;font-size:14.5px;line-height:1.9}
.kv dt{color:var(--gold);font-weight:500}
.kv dd{color:var(--ink-2)}

/* flow */
.flow{list-style:none;margin:32px 0 0;padding:0;counter-reset:step;display:grid;gap:0}
.flow li{counter-increment:step;display:grid;grid-template-columns:56px 1fr;gap:18px;position:relative;padding-bottom:26px}
.flow li::before{content:counter(step,decimal-leading-zero);font:600 22px/1 var(--f-latin);color:var(--cyan);width:44px;height:44px;display:grid;place-items:center;box-shadow:inset 0 0 0 1px #9fe3ec66;transform:rotate(0);clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);background:#0f1d38}
.flow li::after{content:"";position:absolute;left:22px;top:48px;bottom:4px;width:1px;background:linear-gradient(var(--cyan-dim),transparent)}
.flow li:last-child::after{display:none}
.flow h3{font-family:var(--f-body);font-weight:700;font-size:16px;letter-spacing:.04em;padding-top:8px}
.flow p{font-size:14.5px;color:var(--ink-2);line-height:1.95;margin-top:4px}
.flow .where{display:inline-block;font-size:12px;color:var(--gold);border:1px solid #dcc79d55;padding:1px 8px;margin-top:6px}

/* faq */
.faq{margin-top:28px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;display:grid;grid-template-columns:28px 1fr 20px;gap:10px;align-items:baseline;padding:18px 4px;font-weight:700;font-size:15.5px;line-height:1.7}
.faq summary::-webkit-details-marker{display:none}
.faq summary .q{font:600 18px var(--f-latin);color:var(--cyan)}
.faq summary::after{content:"+";font:400 22px/1 var(--f-latin);color:var(--muted);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{padding:0 4px 20px 42px;color:var(--ink-2);font-size:14.5px;line-height:2}
.faq .a p+p{margin-top:8px}

/* cta band */
.cta-band{--c:22px;margin-top:40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;padding:clamp(22px,3.5vw,34px);background:linear-gradient(120deg,#12284a,#0f1d38);box-shadow:inset 0 0 0 1px #dcc79d55;clip-path:polygon(var(--c) 0,100% 0,100% calc(100% - var(--c)),calc(100% - var(--c)) 100%,0 100%,0 var(--c))}
.cta-band strong{font-family:var(--f-head);font-size:19px;letter-spacing:.05em}
.cta-band p{font-size:13.5px;color:var(--ink-2);margin-top:6px;line-height:1.8}

/* author page */
.profile{display:grid;grid-template-columns:240px 1fr;gap:clamp(28px,5vw,60px);align-items:start;margin-top:8px}
.profile .avatar{width:240px}
.profile h2{font-size:clamp(22px,2.8vw,28px)}
.profile p{margin-top:16px;color:var(--ink-2);font-size:15.5px;line-height:2.1;max-width:38em}
.table-wrap{overflow-x:auto;margin-top:28px}
.pv{width:100%;border-collapse:collapse;min-width:420px}
.pv th,.pv td{padding:14px 10px;border-bottom:1px solid var(--line);text-align:left;font-size:14.5px}
.pv th{color:var(--muted);font-weight:500;font-size:12.5px;letter-spacing:.08em}
.pv td.num{font:600 20px var(--f-latin);color:var(--cyan);font-variant-numeric:tabular-nums}
.pv tfoot td{color:var(--gold);border-bottom:0}
.book-row{display:grid;grid-template-columns:160px 1fr;gap:28px;align-items:center;margin-top:28px}
.book-row img{width:160px;aspect-ratio:5/8;object-fit:cover;box-shadow:0 18px 40px #0009}
.book-row h3{font-size:20px}
.book-row p{color:var(--ink-2);font-size:14.5px;margin-top:8px;line-height:1.95}
.book-row .btn-row{margin-top:16px}
.link-list{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:0;border-top:1px solid var(--line)}
.link-list li{border-bottom:1px solid var(--line)}
.link-list a{display:flex;justify-content:space-between;gap:16px;padding:16px 4px;text-decoration:none;font-size:15px}
.link-list a:hover{color:var(--cyan)}
.link-list a span:last-child{color:var(--muted);font-size:13px;white-space:nowrap}

/* ---------- footer ---------- */
.footer{position:relative;z-index:1;border-top:1px solid var(--line);padding-block:40px;font-size:13px;color:var(--muted);background:#070d1ccc}
.footer-grid{display:flex;flex-wrap:wrap;justify-content:space-between;gap:24px}
.footer nav{display:flex;flex-wrap:wrap;gap:8px 22px}
.footer a{text-decoration:none;color:var(--ink-2)}
.footer a:hover{color:var(--cyan)}
.footer .copy{margin-top:8px}

/* ---------- reveal (visible at rest; small lift only) ---------- */
.js .reveal{transition:transform .9s cubic-bezier(.2,.7,.2,1)}
.js .reveal.pre{transform:translateY(22px)}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .gem-stage{order:-1;max-width:300px;margin-bottom:-12px}
  .gem-caption{display:none}
  .work,.edit-panel,.two-col{grid-template-columns:1fr}
  .cover-frame{width:min(100%,320px)}
  .grid-3{grid-template-columns:1fr}
}
@media (max-width:720px){
  :root{--header-h:60px}
  .site-header{backdrop-filter:none;-webkit-backdrop-filter:none;background:#0a1328f2}
  .menu-toggle{display:block}
  .nav{display:none;position:absolute;top:var(--header-h);left:0;right:0;background:var(--navy-900);border-bottom:1px solid var(--line);padding:18px var(--gutter) 22px;flex-direction:column;align-items:stretch;gap:6px}
  .nav.open{display:flex}
  .nav a{padding:10px 0;font-size:15px}
  .nav .nav-cta{text-align:center;margin-top:6px}
  .brand{font-size:12.5px;letter-spacing:.14em}
  .brand img{width:30px;height:30px}
  .author-teaser,.profile{grid-template-columns:1fr}
  .avatar,.profile .avatar{width:140px}
  .kv{grid-template-columns:1fr}
  .kv dt{padding-bottom:0;border-bottom:0}
  .book-row{grid-template-columns:110px 1fr;gap:18px}
  .book-row img{width:110px}
}
@media (max-width:460px){
  .gates{grid-template-columns:1fr}
  .btn-row .btn{width:100%}
  .faq .a{padding-left:4px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms!important;animation:none!important}
  .js .reveal.pre{transform:none}
}