/* Phase Graph 投稿ページ — Fable 5.2 edition（TOP: 13_design-top_fable52.html と同じ設計言語）
   読むためのページなので、動きは「読了バー・目次の現在地・出現」の3つだけに絞る。3D背景は使わない。 */
:root{--bg:#0A0B0E;--bg2:#101216;--panel:#13151A;--ink:#ECECE8;--sub:#9A9C9F;--mute:#5A5D64;--line:#23262C;--line2:#2E323A;--ac:#5B8CFF;--ac2:#9DBBFF;--acd:rgba(91,140,255,.14);
  --jp:"Noto Sans JP",system-ui,sans-serif;--en:"Inter",system-ui,sans-serif;--mono:"JetBrains Mono",ui-monospace,monospace;--ease:cubic-bezier(.2,.7,.1,1);--pad:clamp(20px,5vw,72px)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--jp);font-size:16px;line-height:2;overflow-x:hidden;-webkit-font-smoothing:antialiased;font-feature-settings:"palt"}
a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--ac);color:#fff}:focus-visible{outline:2px solid var(--ac);outline-offset:3px}
.skip{position:fixed;left:16px;top:-60px;z-index:200;background:var(--ac);color:#fff;padding:10px 16px;font-size:13px}.skip:focus{top:16px}
.wrap{width:100%;max-width:1320px;margin:0 auto;padding:0 var(--pad)}
.prog{position:fixed;top:0;left:0;right:0;height:2px;z-index:101;background:linear-gradient(90deg,var(--ac),var(--ac2));transform-origin:left;transform:scaleX(0)}
.fr{position:fixed;z-index:60;width:16px;height:16px;border:1px solid rgba(91,140,255,.55);pointer-events:none}
.fr.a{left:12px;top:12px;border-right:0;border-bottom:0}.fr.b{right:12px;top:12px;border-left:0;border-bottom:0}.fr.c{left:12px;bottom:12px;border-right:0;border-top:0}.fr.d{right:12px;bottom:12px;border-left:0;border-top:0}
header{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:13px var(--pad);background:rgba(10,11,14,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.logo{display:flex;align-items:center;gap:11px;font-family:var(--en);font-weight:800;font-size:16px}.logo img{width:30px;height:30px}
header nav{display:flex;gap:30px}
header nav a{font-family:var(--en);font-size:11.5px;font-weight:500;letter-spacing:.2em;color:var(--sub);padding:6px 0;position:relative;transition:color .3s}
header nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--ac);transform:scaleX(0);transform-origin:right;transition:transform .45s var(--ease)}
header nav a:hover,header nav a.cur{color:var(--ink)}header nav a:hover::after,header nav a.cur::after{transform:scaleX(1);transform-origin:left}
.burger{display:none;width:44px;height:44px;position:relative}
.burger span{position:absolute;left:10px;right:10px;height:1.5px;background:var(--ink);transition:transform .4s var(--ease),opacity .3s,top .4s var(--ease)}
.burger span:nth-child(1){top:16px}.burger span:nth-child(2){top:22px}.burger span:nth-child(3){top:28px}
.burger[aria-expanded="true"] span:nth-child(1){top:22px;transform:rotate(45deg)}.burger[aria-expanded="true"] span:nth-child(2){opacity:0}.burger[aria-expanded="true"] span:nth-child(3){top:22px;transform:rotate(-45deg)}
.mnav{position:fixed;inset:0;z-index:99;background:rgba(10,11,14,.98);display:flex;flex-direction:column;justify-content:center;padding:0 var(--pad);opacity:0;visibility:hidden;transition:opacity .4s,visibility .4s}
.mnav.open{opacity:1;visibility:visible}
.mnav a{font-family:var(--en);font-weight:800;font-size:clamp(30px,9vw,52px);line-height:1.35}
.rv{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease),transform .7s var(--ease)}.rv.in{opacity:1;transform:none}

/* 記事ヘッダー: フェーズグラフの座標面の上にタイトルを置く */
.phead{position:relative;padding:clamp(130px,17vw,210px) 0 clamp(48px,6vw,80px);border-bottom:1px solid var(--line);overflow:hidden;
  background:radial-gradient(70% 90% at 85% 0%,rgba(91,140,255,.16),transparent 60%),linear-gradient(var(--line) 1px,transparent 1px) 0 0/100% 56px,linear-gradient(90deg,var(--line) 1px,transparent 1px) 0 0/56px 100%}
.phead::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,11,14,.2),var(--bg) 96%);pointer-events:none}
.phead svg{position:absolute;right:0;bottom:0;width:min(62vw,860px);height:72%;opacity:.9}
.phead svg path{fill:none;stroke:var(--ac);stroke-width:1.6;stroke-dasharray:1200;stroke-dashoffset:1200;animation:draw 2.2s cubic-bezier(.7,0,.2,1) .3s forwards;vector-effect:non-scaling-stroke}
.phead svg circle{fill:#fff;opacity:0;animation:pop .5s .9s forwards}
.phead svg circle:nth-of-type(2){animation-delay:1.2s}.phead svg circle:nth-of-type(3){animation-delay:1.5s}.phead svg circle:nth-of-type(4){animation-delay:1.8s}.phead svg circle:nth-of-type(5){animation-delay:2.1s}
@keyframes draw{to{stroke-dashoffset:0}}@keyframes pop{to{opacity:1}}
.phead .wrap{position:relative;z-index:1}
.crumb{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--sub);display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.crumb a:hover{color:var(--ac)}.crumb i{font-style:normal;color:var(--mute)}
.pmeta{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:22px;font-family:var(--mono);font-size:11px;letter-spacing:.14em}
.pmeta .tag{background:var(--ac);color:#fff;padding:3px 10px}.pmeta .tag.o{background:none;border:1px solid rgba(91,140,255,.5);color:var(--ac2)}
.pmeta .dt{color:var(--sub);margin-left:6px}
.phead h1{font-size:clamp(28px,5vw,68px);line-height:1.3;font-weight:900;letter-spacing:-.015em;max-width:980px}
.phead .lead{color:#C6C7C6;font-size:clamp(15px,1.3vw,17.5px);max-width:760px;margin-top:26px}
.facts{display:flex;gap:clamp(18px,3vw,44px);flex-wrap:wrap;margin-top:36px;font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:var(--mute)}
.facts b{display:block;color:var(--ink);font-family:var(--jp);font-weight:500;font-size:13px;letter-spacing:.04em;margin-top:2px}

/* 本文 + サイド */
.pgrid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:clamp(36px,6vw,96px);padding-top:clamp(48px,6vw,84px);padding-bottom:clamp(80px,10vw,140px)}
article{max-width:760px}
article h2{font-size:clamp(21px,2.3vw,30px);line-height:1.5;font-weight:700;margin:2.6em 0 .9em;padding-top:1.2em;border-top:1px solid var(--line);position:relative;scroll-margin-top:90px}
article h2::before{content:"";position:absolute;left:0;top:-1px;width:56px;height:1px;background:var(--ac)}
article h2:first-child{margin-top:0}
article h2 .no{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--ac);font-weight:400;margin-bottom:6px}
article p{margin-bottom:1.5em;color:#D6D6D3}
article strong{color:var(--ink);font-weight:700;background:linear-gradient(transparent 62%,var(--acd) 62%)}
article a{color:var(--ac2);text-decoration:underline;text-underline-offset:3px}
.tblw{overflow-x:auto;margin:1.6em 0 2em;border:1px solid var(--line)}
.tbl{width:100%;min-width:560px;border-collapse:collapse;font-size:14px;line-height:1.8}
.tbl th{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--ac);font-weight:400;text-align:left;padding:14px 16px;background:var(--panel);border-bottom:1px solid var(--line2)}
.tbl td{padding:16px;border-bottom:1px solid var(--line);vertical-align:top;color:#C9CACA}
.tbl tr:last-child td{border-bottom:0}.tbl td:first-child{white-space:nowrap;color:var(--ink)}
.point{border:1px solid rgba(91,140,255,.4);background:linear-gradient(135deg,rgba(91,140,255,.1),transparent 60%);padding:22px 24px;margin:2em 0;font-size:15px;position:relative}
.point b{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--ac);display:block;margin-bottom:6px;font-weight:400}
.note{font-size:12.5px;color:var(--mute)}
.foot-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:64px}
.foot-nav a{border:1px solid var(--line);padding:20px 22px;transition:border-color .3s,background .3s}
.foot-nav a:hover{border-color:var(--ac);background:var(--acd)}
.foot-nav .k{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;color:var(--ac);margin-bottom:6px}
.foot-nav .t{display:block;font-size:14.5px;font-weight:700;line-height:1.6}
.foot-nav a:last-child{text-align:right}
.cta{margin-top:40px;border:1px solid var(--line);background:var(--panel);padding:clamp(24px,3vw,40px);display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta p{font-size:15px;max-width:440px}
.btn{display:inline-flex;align-items:center;gap:14px;border:1px solid var(--ink);background:var(--ink);color:#0A0B0E;padding:15px 26px;font-size:13.5px;font-weight:500;letter-spacing:.06em;position:relative;overflow:hidden;transition:color .4s,border-color .4s}
.btn::before{content:"";position:absolute;inset:0;background:var(--ac);transform:translateY(101%);transition:transform .5s var(--ease)}
.btn span,.btn i{position:relative;font-style:normal}.btn:hover{color:#fff;border-color:var(--ac)}.btn:hover::before{transform:none}

.side{position:sticky;top:96px;align-self:start;display:grid;gap:34px;max-height:calc(100vh - 120px);overflow:auto;padding-right:4px}
.sb h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--ac);font-weight:400;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.sb h4::after{content:"";flex:1;height:1px;background:var(--line)}
.sb ul{list-style:none}
.toc a{display:block;padding:7px 0 7px 14px;border-left:1px solid var(--line2);font-size:13px;line-height:1.6;color:var(--sub);transition:color .3s,border-color .3s}
.toc a:hover{color:var(--ink)}.toc a.cur{color:var(--ink);border-color:var(--ac)}
.sb .ls a{display:flex;justify-content:space-between;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px;color:#C9CACA;transition:color .3s,padding .4s var(--ease)}
.sb .ls a:hover{color:var(--ac2);padding-left:6px}
.sb .cnt{font-family:var(--mono);font-size:11px;color:var(--mute)}
.sb .rc{display:block;padding:10px 0;border-bottom:1px solid var(--line);font-size:13px;line-height:1.6;color:#C9CACA;transition:color .3s}
.sb .rc:hover{color:var(--ac2)}.sb .rc .d{display:block;font-family:var(--mono);font-size:10.5px;color:var(--mute)}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tags a{font-size:12px;border:1px solid var(--line2);padding:3px 10px;color:var(--sub);transition:color .3s,border-color .3s}.tags a:hover{color:var(--ac2);border-color:var(--ac)}

footer{border-top:1px solid var(--line);background:rgba(10,11,14,.82);overflow:hidden}
.bigmark{display:flex;width:max-content;animation:tick 40s linear infinite;padding:clamp(30px,5vw,70px) 0 clamp(10px,2vw,30px)}
.bigmark span{font-family:var(--en);font-weight:800;font-size:clamp(84px,19vw,300px);line-height:.9;letter-spacing:-.05em;color:var(--bg);-webkit-text-stroke:2px #3A3F4A;paint-order:stroke fill;padding-right:.3em;white-space:nowrap}
.bigmark span em{font-style:normal;-webkit-text-stroke-color:var(--ac)}
@keyframes tick{to{transform:translateX(-50%)}}
.fgrid{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding:26px 0 60px;border-top:1px solid var(--line)}
.fnav{display:flex;gap:24px;flex-wrap:wrap}.fnav a{font-family:var(--en);font-size:11px;letter-spacing:.18em;color:var(--sub)}.fnav a:hover{color:var(--ac)}
.copy{font-family:var(--mono);font-size:11px;color:var(--mute)}

@media(max-width:1000px){
  header nav{display:none}.burger{display:block}.fr{display:none}
  header{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(10,11,14,.95)}
  .pgrid{grid-template-columns:1fr}
  .side{position:static;max-height:none;overflow:visible}
  .side .sb.toc-box{display:none}
}
@media(max-width:640px){.foot-nav{grid-template-columns:1fr}.foot-nav a:last-child{text-align:left}.phead svg{width:100%;opacity:.5}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.rv{opacity:1!important;transform:none!important;transition:none!important}.phead svg path{animation:none;stroke-dashoffset:0}.phead svg circle{animation:none;opacity:1}.bigmark{animation:none}}

/* WordPress articles and existing fixed pages may contain Gutenberg blocks. */
article img{max-width:100%;height:auto}
article .wp-block-table{overflow-x:auto}
article .wp-block-table table{width:100%;border-collapse:collapse}
article .wp-block-table :is(td,th){border:1px solid var(--line);padding:.6em .85em}
article :is(ul,ol){padding-inline-start:1.5em;margin-bottom:1.5em}
article figure{margin-block:1.5em}
.pg-standard-page{padding-top:clamp(100px,14vw,180px);padding-bottom:80px}
.pg-standard-page h1{margin-bottom:1em}