/* Casebook site styles. A sibling of Puzzle Desk and Piece Party: the same paper, garden green and brass tokens and the
   self-hosted Bricolage Grotesque, plus Casebook's own pieces: manila case folders, violet ink and a book serif for the
   case prose and clues. */
@font-face{font-family:'Bricolage';font-weight:400;font-display:swap;src:url(/fonts/bricolage-grotesque-latin-400-normal.woff2) format('woff2')}
@font-face{font-family:'Bricolage';font-weight:600;font-display:swap;src:url(/fonts/bricolage-grotesque-latin-600-normal.woff2) format('woff2')}
@font-face{font-family:'Bricolage';font-weight:800;font-display:swap;src:url(/fonts/bricolage-grotesque-latin-800-normal.woff2) format('woff2')}
:root{
  --font:Bricolage,"Avenir Next","Segoe UI",system-ui,sans-serif;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua","URW Palladio L",Georgia,serif;
  --paper:#E7EDDF; --paper-2:#DCE5D2; --card:#F4F7F0; --ink:#1E2E22; --ink-soft:#4F6253; --line:rgba(30,46,34,.16);
  --bed:#3A4A35; --bed-hi:#45573F; --brass:#D2A84E; --brass-deep:#7E5D1C; --water:#2F9BD8; --bloom:#E9668C; --leaf:#7CC066;
  --focus:#2F6FDE; --good:#2E7D4F; --bad:#B8362F; --bad-bg:#F8E1DD;
  --daily-bg:#1F6FA6; --daily-on:#fff; --daily-ink:#185E92;
  /* Casebook: manila folders and violet ink */
  --manila:#EBDDB2; --manila-2:#F5ECCF; --manila-edge:#C9AE6A; --manila-ink:#4A3B17; --manila-soft:#6E5B2E;
  --cb:#5845B5; --cb-deep:#45379A; --cb-on:#fff; --cb-ink:#45379A; --cb-tint:color-mix(in srgb,#5845B5 12%,#F4F7F0);
  --r-lg:22px; --r-md:14px; color-scheme:light;
  --lift:0 1px 0 rgba(30,46,34,.08),0 14px 28px -16px rgba(30,46,34,.45);
  --folder-shadow:0 1px 0 rgba(74,59,23,.18),0 22px 40px -24px rgba(58,47,20,.55);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#151C17; --paper-2:#1C2620; --card:#1F2A22; --ink:#E3EBDD; --ink-soft:#A3B39F; --line:rgba(227,235,221,.16);
  --bed:#2E3B2A; --bed-hi:#384834; --focus:#7AA7FF; --good:#7FD39C; --bad:#F08A84; --bad-bg:#3A2220; color-scheme:dark;
  --daily-bg:#7CC4F2; --daily-on:#10202B; --daily-ink:#7CC4F2;
  --manila:#2F2A1C; --manila-2:#38321F; --manila-edge:#5E5030; --manila-ink:#F0E3BC; --manila-soft:#C9B888;
  --cb:#A493F5; --cb-deep:#BDB0FF; --cb-on:#16122E; --cb-ink:#C3B8FF; --cb-tint:color-mix(in srgb,#A493F5 16%,#1F2A22);
  --lift:0 1px 0 rgba(0,0,0,.3),0 16px 30px -16px rgba(0,0,0,.8); --folder-shadow:0 1px 0 rgba(0,0,0,.4),0 22px 40px -24px rgba(0,0,0,.9);}}
:root[data-theme="dark"]{
  --paper:#151C17; --paper-2:#1C2620; --card:#1F2A22; --ink:#E3EBDD; --ink-soft:#A3B39F; --line:rgba(227,235,221,.16);
  --bed:#2E3B2A; --bed-hi:#384834; --focus:#7AA7FF; --good:#7FD39C; --bad:#F08A84; --bad-bg:#3A2220; color-scheme:dark;
  --daily-bg:#7CC4F2; --daily-on:#10202B; --daily-ink:#7CC4F2;
  --manila:#2F2A1C; --manila-2:#38321F; --manila-edge:#5E5030; --manila-ink:#F0E3BC; --manila-soft:#C9B888;
  --cb:#A493F5; --cb-deep:#BDB0FF; --cb-on:#16122E; --cb-ink:#C3B8FF; --cb-tint:color-mix(in srgb,#A493F5 16%,#1F2A22);
  --lift:0 1px 0 rgba(0,0,0,.3),0 16px 30px -16px rgba(0,0,0,.8); --folder-shadow:0 1px 0 rgba(0,0,0,.4),0 22px 40px -24px rgba(0,0,0,.9);}
/* the shared network control and footer band, in Casebook's tokens */
:root{--idn-bg:var(--card);--idn-fg:var(--ink);--idn-muted:var(--ink-soft);--idn-line:var(--line);--idn-hover:var(--paper-2);--idn-accent:var(--cb);--idn-focus:var(--focus);--idn-band-bg:var(--paper-2);--idn-font:var(--font);--idn-max:1180px}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.5 var(--font);-webkit-tap-highlight-color:transparent;overflow-x:hidden}
a{color:inherit}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
[hidden]{display:none!important}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
svg.i{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.skip{position:absolute;left:12px;top:-60px;background:var(--ink);color:var(--paper);padding:10px 14px;border-radius:10px;z-index:80;font-weight:600;text-decoration:none}
.skip:focus{top:10px}

/* header */
.cb-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 0 8px}
.cb-mark{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;letter-spacing:-.6px;text-decoration:none;line-height:1;white-space:nowrap}
.cb-mark svg{width:34px;height:34px;flex:none}
.cb-nav{display:flex;gap:2px;align-items:center}
.cb-nav>a{text-decoration:none;font-weight:600;font-size:16px;padding:8px 11px;border-radius:10px;color:var(--ink-soft);white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.cb-nav>a:hover{background:var(--paper-2);color:var(--ink)}
.cb-nav>a[aria-current="page"]{color:var(--ink);background:var(--paper-2)}
.cb-nav>a svg{width:20px;height:20px}
.cb-gear{border:0;background:transparent;color:var(--ink-soft);width:40px;height:40px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;padding:0}
.cb-gear:hover,.cb-gear[aria-expanded="true"]{background:var(--paper-2);color:var(--ink)}
.nv-me .ic{display:none}
@media (max-width:760px){.cb-nav .nv-cases{display:none}}
@media (max-width:640px){.cb-top{padding:8px 0 0;gap:4px}.cb-mark{font-size:19px;gap:8px}.cb-mark svg{width:28px;height:28px}.cb-nav>a{padding:8px 7px;font-size:15px}.cb-nav .nv-archive{display:none}.nv-me .tx{display:none}.nv-me .ic{display:block}}
@media (max-width:380px){.cb-mark .wm{font-size:18px}}

/* buttons */
.btn{border:0;border-radius:12px;padding:10px 15px;font-weight:600;font-size:16px;display:inline-flex;align-items:center;justify-content:center;gap:8px;line-height:1.15;text-decoration:none;touch-action:manipulation;background:var(--paper-2);color:var(--ink);min-height:44px}
.btn svg{width:19px;height:19px;flex:none}
.btn:hover{background:var(--line)}
.btn.main{background:var(--ink);color:var(--paper)}
.btn.main:hover{filter:brightness(1.18);background:var(--ink)}
.btn.ink{background:var(--cb);color:var(--cb-on);box-shadow:inset 0 -3px 0 rgba(0,0,0,.18)}
.btn.ink:hover{background:var(--cb);filter:brightness(1.08)}
.btn.ink:active{transform:translateY(1px);box-shadow:inset 0 -1px 0 rgba(0,0,0,.18)}
.btn.card{background:var(--card)}
.btn.card:hover{background:var(--paper-2)}
.btn.quiet{background:transparent;box-shadow:inset 0 0 0 2px var(--line)}
.btn.quiet:hover{background:var(--paper-2)}
.btn.big{font-size:18px;padding:13px 22px;border-radius:14px}
.btn[aria-disabled="true"]{opacity:.5}
.linkbtn{all:unset;cursor:pointer;color:var(--cb-ink);font-weight:600;font-size:15px;border-radius:6px;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.linkbtn:focus-visible{outline:3px solid var(--focus);outline-offset:2px}

/* badges */
.badge{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;border-radius:999px;padding:3px 11px;background:var(--paper-2);color:var(--ink);white-space:nowrap}
.badge.daily{background:var(--daily-bg);color:var(--daily-on)}
.badge.archive{background:color-mix(in srgb,var(--water) 18%,var(--card));color:var(--ink)}
.badge.practice{background:var(--card);box-shadow:inset 0 0 0 1px var(--line)}
.badge.tutorial{background:var(--cb-tint);color:var(--cb-ink)}
.badge.replay{background:transparent;box-shadow:inset 0 0 0 1.5px var(--ink-soft);color:var(--ink-soft)}
.badge.lv-introductory::before,.badge.lv-intermediate::before,.badge.lv-advanced::before{content:"";display:inline-block;width:18px;height:6px;border-radius:3px;background:linear-gradient(90deg,currentColor 0 30%,transparent 30% 35%,var(--l2,transparent) 35% 65%,transparent 65% 70%,var(--l3,transparent) 70%);box-shadow:inset 0 0 0 1px currentColor}
.badge.lv-intermediate{--l2:currentColor}
.badge.lv-advanced{--l2:currentColor;--l3:currentColor}
.streak{display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:14px;background:var(--card);border-radius:999px;padding:4px 12px 4px 9px}
.streak::before{content:"";width:10px;height:10px;border-radius:50% 0;background:var(--leaf);transform:rotate(45deg)}

/* portraits */
.pt{display:block;border-radius:50%;flex:none}
.pts{display:flex}
.pts .pt{box-shadow:0 0 0 3px var(--manila-2)}
.pts .pt+.pt{margin-left:-12px}

/* toast + sheets + settings popover */
.cb-toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:11px 16px;border-radius:12px;z-index:70;font-weight:600;max-width:min(92vw,460px);text-align:center}
.cb-pop{position:fixed;z-index:45;top:64px;right:max(16px,calc((100vw - 1180px)/2 + 16px));width:min(360px,calc(100vw - 32px));max-height:calc(100dvh - 80px);overflow:auto;background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:16px 18px 18px;box-shadow:0 24px 48px -18px rgba(0,0,0,.45);display:flex;flex-direction:column;gap:14px;overscroll-behavior:contain}
.pop-head{display:flex;align-items:center;justify-content:space-between}
.cb-pop h2{margin:0;font-size:22px;letter-spacing:-.4px}
.pop-x{border:0;background:var(--paper-2);border-radius:10px;width:36px;height:36px;font-size:22px;line-height:1;padding:0}
.seg-wrap{display:flex;flex-direction:column;gap:6px}
.seg-wrap>b{font-size:16px}
.tseg{display:flex;background:var(--paper-2);border-radius:12px;padding:4px}
.tseg label{flex:1;position:relative}
.tseg input{position:absolute;opacity:0;inset:0;margin:0;cursor:pointer}
.tseg span{display:block;text-align:center;padding:7px 0;border-radius:9px;font-weight:600;font-size:15px;color:var(--ink-soft)}
.tseg input:checked+span{background:var(--card);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.15)}
.tseg input:focus-visible+span{outline:3px solid var(--focus);outline-offset:1px}
.sw{display:flex;gap:12px;align-items:flex-start;cursor:pointer;position:relative}
.sw input{position:absolute;opacity:0;width:44px;height:26px;margin:0}
.sw .tg{flex:none;width:44px;height:26px;border-radius:999px;background:var(--line);position:relative;transition:background .15s;margin-top:1px}
.sw .tg::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:var(--card);box-shadow:0 1px 2px rgba(0,0,0,.3);transition:transform .15s}
.sw input:checked+.tg{background:var(--good)}
.sw input:checked+.tg::after{transform:translateX(18px)}
.sw input:focus-visible+.tg{outline:3px solid var(--focus);outline-offset:2px}
.sw input:disabled+.tg{opacity:.55}
.sw .tx{display:flex;flex-direction:column;line-height:1.3}
.sw .tx b{font-size:16px}
.sw .tx small{font-size:14px;color:var(--ink-soft)}
@media (max-width:640px){.cb-pop{top:56px}}

/* ---------- the manila folder (home hero, case cards, the case file) ---------- */
.folder{position:relative;background:var(--manila);color:var(--manila-ink);border-radius:6px 18px 18px 18px;box-shadow:var(--folder-shadow);margin-top:22px}
.folder::before{content:"";position:absolute;left:0;top:-20px;height:22px;width:min(46%,230px);background:var(--manila);border-radius:12px 14px 0 0;clip-path:polygon(0 0,86% 0,100% 100%,0 100%)}
.folder>.tab{position:absolute;left:16px;top:-17px;font-size:13px;font-weight:600;color:var(--manila-soft);white-space:nowrap;z-index:1}
.folder .paper{background:var(--manila-2);border-radius:4px 14px 14px 14px;margin:10px;padding:20px 22px;box-shadow:0 1px 0 rgba(74,59,23,.12)}

/* ---------- home ---------- */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:44px;align-items:center;padding:30px 0 18px}
.hero h1{font-size:clamp(40px,6vw,68px);line-height:.98;letter-spacing:-2.2px;margin:0 0 16px;font-weight:800;max-width:11ch}
.hero .lede{font-size:19px;color:var(--ink-soft);margin:0 0 20px;max-width:36ch}
.hero .facts{display:flex;flex-wrap:wrap;gap:8px 18px;margin:0;padding:0;list-style:none;color:var(--ink-soft);font-size:15px}
.hero .facts li{display:flex;gap:8px;align-items:center}
.hero .facts li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cb);flex:none}
@media (max-width:860px){.hero{grid-template-columns:1fr;gap:22px;padding-top:18px}.hero h1{max-width:14ch}}
.today .paper{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 18px;align-items:start}
.today h2{font-family:var(--serif);font-weight:600;font-size:clamp(28px,3.4vw,38px);line-height:1.08;letter-spacing:-.4px;margin:2px 0 4px;color:var(--manila-ink)}
.today .venue{margin:0 0 12px;color:var(--manila-soft);font-size:16px}
.today .who{grid-column:1/-1;margin:0 0 16px;color:var(--manila-ink);font-family:var(--serif);font-size:17px;line-height:1.45;max-width:42ch}
.today .pts{grid-row:1/span 3;grid-column:2;align-self:start;margin-top:4px}
.today .pts .pt{width:62px;height:62px}
.today .row{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.today .status{grid-column:1/-1;margin:2px 0 0;font-size:15px;color:var(--manila-soft)}
.today .meta{grid-column:1;display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:0 0 6px}
@media (max-width:520px){.today .paper{grid-template-columns:1fr}.today .pts{grid-row:auto;grid-column:1;order:-1}.today .pts .pt{width:52px;height:52px}.folder .paper{padding:16px 16px;margin:8px}}
.today.none h2{font-family:var(--font);font-weight:800}

.sec{padding:34px 0 10px}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.sec h2{font-size:30px;letter-spacing:-.8px;margin:0;line-height:1.1}
.sec .sub{margin:4px 0 14px;color:var(--ink-soft);max-width:64ch}
.shelf{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:26px 16px;padding:0;margin:0;list-style:none}
.ccard{display:block;text-decoration:none;margin-top:16px;border-radius:4px 14px 14px 14px;transition:transform .15s}
.ccard:hover{transform:translateY(-2px)}
.ccard.folder::before{top:-14px;height:16px;width:44%}
.ccard>.tab{top:-13px;left:12px;font-size:12px}
.ccard .paper{margin:7px;padding:12px 14px 13px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 10px;align-items:center}
.ccard b{font-family:var(--serif);font-weight:600;font-size:20px;line-height:1.15;color:var(--manila-ink)}
.ccard .v{grid-column:1;font-size:14px;color:var(--manila-soft)}
.ccard .pts{grid-row:1/span 2;grid-column:2}
.ccard .pts .pt{width:36px;height:36px}
.ccard .pts .pt+.pt{margin-left:-10px}
.ccard .st{grid-column:1/-1;margin-top:8px;display:flex;gap:8px;align-items:center;font-size:14px;font-weight:600;color:var(--manila-soft)}
.ccard .st .done{color:var(--good)}
.ccard .st .done::before{content:"";display:inline-block;width:12px;height:7px;border-left:2.5px solid currentColor;border-bottom:2.5px solid currentColor;transform:rotate(-45deg) translate(1px,-2px);margin-right:6px}
.filters{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0 4px}
.fchip{border:2px solid var(--line);background:transparent;border-radius:999px;padding:6px 14px;font-weight:600;font-size:15px;white-space:nowrap;color:var(--ink);touch-action:manipulation;min-height:40px}
.fchip:hover{background:var(--paper-2)}
.fchip[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.learn{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;list-style:none;padding:0;margin:0}
.learn a{display:flex;gap:12px;align-items:center;background:var(--card);border-radius:16px;padding:12px 14px;text-decoration:none;min-height:72px}
.learn a:hover{background:var(--paper-2)}
.learn .n{font-weight:800;font-size:15px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--cb-tint);color:var(--cb-ink);flex:none}
.learn b{display:block;font-size:17px;line-height:1.2}
.learn span span{display:block;font-size:14px;color:var(--ink-soft);line-height:1.3}
.learn .ok{color:var(--good);font-weight:600}
@media (max-width:760px){.learn{grid-template-columns:1fr}}
.cast{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px;list-style:none;padding:0;margin:0}
.cast li{display:flex;gap:10px;align-items:center}
.cast .pt{width:54px;height:54px}
.cast b{display:block;font-size:16px;line-height:1.2}
.cast span{font-size:14px;color:var(--ink-soft);line-height:1.25;display:block}
.about{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px}
@media (max-width:760px){.about{grid-template-columns:1fr}}
.about p,.about li{color:var(--ink-soft)}
.faq details{border-bottom:1px solid var(--line);padding:12px 0}
.faq summary{cursor:pointer;font-weight:600}
.faq p{margin:8px 0 2px;color:var(--ink-soft)}

/* archive + my casebook */
.page-head{padding:22px 0 6px}
.page-head h1{font-size:clamp(34px,5vw,52px);letter-spacing:-1.5px;line-height:1;margin:0 0 10px;font-weight:800}
.page-head p{margin:0;color:var(--ink-soft);max-width:62ch}
.days{list-style:none;padding:0;margin:16px 0 0;display:flex;flex-direction:column;gap:8px;max-width:760px}
.days a{display:grid;grid-template-columns:72px minmax(0,1fr) auto;gap:4px 14px;align-items:center;background:var(--card);border-radius:14px;padding:10px 14px;text-decoration:none}
.days a:hover{background:var(--paper-2)}
.days .d{font-size:14px;color:var(--ink-soft);line-height:1.2}
.days .d b{display:block;color:var(--ink);font-size:17px}
.days .t{font-family:var(--serif);font-weight:600;font-size:19px;line-height:1.2}
.days .t small{display:block;font-family:var(--font);font-weight:400;font-size:14px;color:var(--ink-soft)}
.days .s{font-size:14px;font-weight:600;color:var(--ink-soft);text-align:right}
.days .s.ok{color:var(--good)}
.days li.today a{box-shadow:inset 0 0 0 2px var(--daily-bg)}
@media (max-width:520px){.days a{grid-template-columns:58px minmax(0,1fr)}.days .s{grid-column:2;text-align:left}}
.tiles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:20px 0 8px}
.tile{background:var(--card);border-radius:18px;padding:14px 16px}
.tile b{display:block;font-size:34px;font-weight:800;letter-spacing:-1px;line-height:1.05;font-variant-numeric:tabular-nums}
.tile span{color:var(--ink-soft);font-size:14px}
.tile.lead{background:var(--bed);color:#EEF3E8}
.tile.lead span{color:#C9D6C3}
@media (max-width:640px){.tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.tile b{font-size:28px}}
.me-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:start}
@media (max-width:860px){.me-grid{grid-template-columns:1fr}}
.me-sec{padding:22px 0 0}
.me-sec h2{font-size:24px;margin:0 0 12px;letter-spacing:-.4px}
.cal{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:4px;max-width:330px}
.cal .dw{font-size:12px;color:var(--ink-soft);text-align:center}
.cal span.c{aspect-ratio:1;border-radius:9px;background:var(--paper-2);font-size:14px;font-variant-numeric:tabular-nums;color:var(--ink-soft);display:grid;place-items:center;position:relative}
.cal span.c.out{background:transparent;opacity:.4}
.cal span.c.s1{background:var(--cb);color:var(--cb-on);font-weight:600}
.cal span.c.late{background:color-mix(in srgb,var(--water) 30%,var(--card));color:var(--ink)}
.cal span.c.now{box-shadow:inset 0 0 0 2px var(--ink)}
.cal-key{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--ink-soft);margin-top:8px}
.cal-key i{display:inline-block;width:12px;height:12px;border-radius:4px;vertical-align:-1px;margin-right:5px}
.prog{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.prog li{display:grid;grid-template-columns:120px minmax(0,1fr) 54px;gap:10px;align-items:center;font-size:15px}
.prog .bar{height:10px;border-radius:999px;background:var(--paper-2);overflow:hidden}
.prog .bar i{display:block;height:100%;background:var(--cb);border-radius:999px}
.prog .n{text-align:right;font-variant-numeric:tabular-nums;color:var(--ink-soft)}
.hist{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}
.hist a{display:flex;justify-content:space-between;gap:12px;background:var(--card);border-radius:12px;padding:9px 12px;text-decoration:none;font-size:15px}
.hist a span{color:var(--ink-soft);white-space:nowrap}
.empty{background:var(--card);border-radius:16px;padding:16px;color:var(--ink-soft);margin:0}
.empty a{color:var(--cb-ink);font-weight:600}

/* prose pages, 404 */
.prose{max-width:700px;padding:10px 0 40px}
.prose h1{font-size:clamp(32px,5vw,46px);letter-spacing:-1.2px;margin:14px 0 12px;line-height:1.05}
.prose h2{font-size:22px;margin:30px 0 6px;scroll-margin-top:16px}
.prose p,.prose li{color:var(--ink-soft)}
.prose a{color:var(--cb-ink)}
.prose .ex{font-family:var(--serif);background:var(--manila-2);color:var(--manila-ink);border-radius:12px;padding:12px 16px;margin:10px 0}
.lost-page{padding:40px 0 30px;max-width:640px}
.lost-page h1{font-size:clamp(34px,6vw,56px);letter-spacing:-1.5px;line-height:1;margin:0 0 12px;font-weight:800}
.lost-page p{color:var(--ink-soft);font-size:18px;margin:0 0 18px}
.lost-page .row{display:flex;gap:8px;flex-wrap:wrap}

footer.cb-foot{padding:24px 0 44px;color:var(--ink-soft);font-size:14px}
footer.cb-foot a{color:var(--ink)}
footer.cb-foot p{margin:0 0 4px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
:root[data-motion="reduce"] *{transition:none!important;animation:none!important}

/* ---- shared/network ---- */
/* Idistic network navigation (shared/network). Theme via --idn-* custom properties (README.md).
   Inner rules are prefixed with .idn-menu / .idn-footer so host rules like `nav a{...}` or `footer a{...}` don't leak in. */
.idn-menu,.idn-footer{--_bg:var(--idn-bg,#fff);--_fg:var(--idn-fg,#16202a);--_muted:var(--idn-muted,#5a6672);--_line:var(--idn-line,rgba(22,32,42,.14));--_hover:var(--idn-hover,rgba(22,32,42,.06));--_accent:var(--idn-accent,#2346b0);--_focus:var(--idn-focus,#2f6fde);--_radius:var(--idn-radius,16px);--_shadow:var(--idn-shadow,0 2px 6px rgba(0,0,0,.06),0 24px 48px -16px rgba(0,0,0,.28));--_scrim:var(--idn-scrim,rgba(10,14,20,.42));--_band:var(--idn-band-bg,rgba(22,32,42,.04));--_band-fg:var(--idn-band-fg,var(--_fg));--_trigger-bg:var(--idn-trigger-bg,transparent);--_trigger-fg:var(--idn-trigger-fg,var(--_muted));--_trigger-hover:var(--idn-trigger-hover,var(--_hover));font-family:var(--idn-font,inherit);letter-spacing:normal;text-transform:none;white-space:normal}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) :is(.idn-menu,.idn-footer){--_bg:var(--idn-bg,#1b2128);--_fg:var(--idn-fg,#e8edf2);--_muted:var(--idn-muted,#a3adb8);--_line:var(--idn-line,rgba(232,237,242,.14));--_hover:var(--idn-hover,rgba(232,237,242,.07));--_accent:var(--idn-accent,#8fb0ff);--_focus:var(--idn-focus,#7aa7ff);--_shadow:var(--idn-shadow,0 2px 6px rgba(0,0,0,.3),0 24px 48px -16px rgba(0,0,0,.7));--_scrim:var(--idn-scrim,rgba(0,0,0,.55));--_band:var(--idn-band-bg,rgba(232,237,242,.04))}}
:root[data-theme="dark"] :is(.idn-menu,.idn-footer){--_bg:var(--idn-bg,#1b2128);--_fg:var(--idn-fg,#e8edf2);--_muted:var(--idn-muted,#a3adb8);--_line:var(--idn-line,rgba(232,237,242,.14));--_hover:var(--idn-hover,rgba(232,237,242,.07));--_accent:var(--idn-accent,#8fb0ff);--_focus:var(--idn-focus,#7aa7ff);--_shadow:var(--idn-shadow,0 2px 6px rgba(0,0,0,.3),0 24px 48px -16px rgba(0,0,0,.7));--_scrim:var(--idn-scrim,rgba(0,0,0,.55));--_band:var(--idn-band-bg,rgba(232,237,242,.04))}
.idn-menu *,.idn-footer *{box-sizing:border-box}

/* ---- header control ---- */
.idn-menu{position:relative;display:inline-block;flex:none;line-height:1.3;font-size:16px;text-align:left}
.idn-menu .idn-trigger{list-style:none;display:inline-flex;align-items:center;gap:7px;min-height:40px;min-width:40px;margin:0;padding:8px 12px;border:0;border-radius:10px;background:var(--_trigger-bg);color:var(--_trigger-fg);font:inherit;font-weight:600;font-size:15px;line-height:1.2;cursor:pointer;user-select:none;-webkit-user-select:none;white-space:nowrap;touch-action:manipulation;-webkit-tap-highlight-color:transparent}
.idn-menu .idn-trigger::-webkit-details-marker{display:none}
.idn-menu .idn-trigger::marker{content:""}
.idn-menu .idn-trigger:hover,.idn-menu[open]>.idn-trigger{background:var(--_trigger-hover);color:var(--_fg)}
.idn-menu .idn-trigger:focus-visible,.idn-menu .idn-item:focus-visible,.idn-menu .idn-studio:focus-visible,.idn-footer .idn-card:focus-visible,.idn-footer .idn-studio-line a:focus-visible{outline:3px solid var(--_focus);outline-offset:2px}
.idn-menu .idn-grid{flex:none;display:block;fill:currentColor}
.idn-menu .idn-grid rect:nth-child(4){fill:var(--_accent)}
/* Backdrop lives in the <summary>: a click/tap on it toggles the <details> closed, with or without JavaScript. */
.idn-menu[open]>.idn-trigger::before{content:"";position:fixed;inset:0;z-index:1000;background:transparent;cursor:default}
.idn-menu .idn-panel{position:absolute;z-index:1001;top:calc(100% + 8px);width:min(380px,calc(100vw - 24px));max-height:min(78vh,640px);overflow:auto;overscroll-behavior:contain;margin:0;padding:8px;background:var(--_bg);color:var(--_fg);border:1px solid var(--_line);border-radius:var(--_radius);box-shadow:var(--_shadow);text-align:left;white-space:normal;font-weight:400}
.idn-menu:not([open])>.idn-panel{display:none}
.idn-menu.idn-align-end>.idn-panel{right:0}
.idn-menu.idn-align-start>.idn-panel{left:0}
.idn-menu[open]>.idn-panel{animation:idn-in .14s ease-out}
@keyframes idn-in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.idn-menu .idn-head{margin:6px 10px 4px;font-size:15px;font-weight:700;line-height:1.3;color:var(--_fg)}
.idn-menu .idn-group{margin:10px 10px 2px;font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;line-height:1.3;color:var(--_muted)}
.idn-menu .idn-list,.idn-footer .idn-cards{list-style:none;margin:0;padding:0}
.idn-menu .idn-list li,.idn-footer .idn-cards li{margin:0;padding:0}
.idn-menu .idn-list li::before,.idn-footer .idn-cards li::before{content:none}
.idn-menu .idn-item{display:flex;align-items:center;gap:12px;margin:0;padding:8px 10px;border-radius:12px;background:none;color:var(--_fg);font-size:16px;font-weight:400;text-decoration:none;white-space:normal;min-height:56px}
.idn-menu .idn-item:hover{background:var(--_hover);color:var(--_fg)}
:is(.idn-menu,.idn-footer) .idn-icon{flex:none;width:40px;height:40px;display:block}
:is(.idn-menu,.idn-footer) .idn-icon svg{display:block;width:100%;height:100%}
:is(.idn-menu,.idn-footer) .idn-text{display:flex;flex-direction:column;min-width:0;flex:1}
:is(.idn-menu,.idn-footer) .idn-name{font-weight:700;font-size:16px;line-height:1.25;color:var(--_fg)}
:is(.idn-menu,.idn-footer) .idn-tag{font-size:14px;font-weight:400;line-height:1.35;color:var(--_muted);overflow-wrap:anywhere}
.idn-menu .idn-kind{flex:none;align-self:center;font-size:12px;font-weight:600;line-height:1.3;padding:3px 8px;border-radius:999px;border:1px solid var(--_line);color:var(--_muted);white-space:nowrap}
.idn-menu .idn-studio{display:flex;align-items:center;gap:10px;margin:8px 0 0;padding:12px 10px 6px;border:0;border-top:1px solid var(--_line);border-radius:0;background:none;color:var(--_fg);font-size:14px;font-weight:400;line-height:1.35;text-decoration:none;white-space:normal}
.idn-menu .idn-studio:hover{background:none;color:var(--_fg)}
.idn-menu .idn-studio:hover .idn-studio-text{text-decoration:underline;text-underline-offset:3px}
.idn-menu .idn-studio-icon{flex:none;width:24px;height:24px}
.idn-menu .idn-studio-icon svg{display:block;width:100%;height:100%}
.idn-menu .idn-studio-text{flex:1;color:var(--_muted)}
.idn-menu .idn-studio-text strong{color:var(--_fg);font-weight:700}
.idn-menu .idn-arrow{flex:none;display:block;color:var(--_accent)}
@media (max-width:639.98px){
  .idn-menu[open]>.idn-trigger::before{background:var(--_scrim)}
  .idn-menu .idn-panel{position:fixed;left:0;right:0;bottom:0;top:auto;width:auto;max-height:82vh;border-radius:var(--_radius) var(--_radius) 0 0;border-bottom:0;padding:8px 10px calc(14px + env(safe-area-inset-bottom,0px))}
  .idn-menu .idn-panel::before{content:"";display:block;width:40px;height:4px;border-radius:2px;margin:2px auto 6px;background:var(--_line)}
  .idn-menu[open]>.idn-panel{animation:idn-up .18s ease-out}
  .idn-menu .idn-kind{display:none}
}
@keyframes idn-up{from{transform:translateY(24px);opacity:.4}to{transform:none;opacity:1}}
@media (max-width:479.98px){.idn-menu .idn-label{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0}.idn-menu .idn-trigger{padding:8px 10px;justify-content:center}}
@media (prefers-reduced-motion:reduce){.idn-menu[open]>.idn-panel{animation:none}}
:root[data-motion="reduce"] .idn-menu[open]>.idn-panel{animation:none}
/* While open, ancestors must not trap position:fixed (backdrop-filter/transform/filter create containing blocks). */
:has(.idn-menu[open]):not(html,body){backdrop-filter:none!important;-webkit-backdrop-filter:none!important;transform:none!important;filter:none!important;contain:none!important}

/* ---- footer band ---- */
.idn-footer{display:block;margin:0;background:var(--_band);color:var(--_band-fg);border-top:1px solid var(--_line);padding:28px var(--idn-gutter,16px) 24px;line-height:1.4;font-size:16px;text-align:left}
.idn-footer .idn-footer-inner{max-width:var(--idn-max,1100px);margin:0 auto}
.idn-footer .idn-footer-title{margin:0 0 14px;padding:0;font-family:inherit;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;line-height:1.3;color:var(--_muted)}
.idn-footer .idn-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr));gap:10px}
.idn-footer .idn-card{display:flex;align-items:center;gap:12px;height:100%;margin:0;padding:12px 14px;border-radius:calc(var(--_radius) - 2px);background:var(--_bg);border:1px solid var(--_line);color:var(--_fg);font-weight:400;text-decoration:none;white-space:normal;transition:border-color .15s}
.idn-footer .idn-card:hover{border-color:var(--_accent);color:var(--_fg)}
.idn-footer .idn-studio-line{margin:16px 0 0;padding:0;font-size:14px;line-height:1.4;color:var(--_muted)}
.idn-footer .idn-studio-line a{color:var(--_fg);font-weight:700;text-decoration:underline;text-decoration-color:var(--_line);text-underline-offset:3px}
.idn-footer .idn-studio-line a:hover{text-decoration-color:currentColor}