/* Freeroom - brutalistische typografische index
   Archivo (koppen, breed/zwaar) + Space Mono (meta) + Archivo (tekst) */
:root{
  --ink:#0b0b0b;
  --paper:#f2f1ed;
  --white:#ffffff;
  --g1:#e3e1dc;
  --g2:#bcb9b2;
  --g3:#5f5d58;
  --red:#e8391d;
  --red-ink:#b82b12;
  --line:2px solid var(--ink);
  --thin:1px solid var(--ink);
  --mono:"Space Mono",ui-monospace,"Courier New",monospace;
  --sans:"Archivo",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --gut:clamp(16px,3vw,32px);
  --max:1440px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:90px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:clamp(16px,.95rem + .2vw,18px);line-height:1.6;font-stretch:100%;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--red-ink)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--red);outline-offset:2px}
h1,h2,h3{font-family:var(--sans);font-stretch:125%;font-weight:800;line-height:1.02;letter-spacing:-.01em;margin:0}
p{margin:0 0 1em}
.mono{font-family:var(--mono);font-size:.78rem;letter-spacing:.02em;text-transform:uppercase}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--gut)}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.i{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:square;stroke-linejoin:miter;flex:none;vertical-align:middle}
.skip{position:absolute;left:8px;top:-60px;z-index:200;background:var(--red);color:var(--ink);padding:10px 14px;font-weight:700;border:var(--line)}
.skip:focus{top:8px}

/* ---------- header */
.topline{background:var(--ink);color:var(--paper);font-size:.7rem}
.topline-in{display:flex;justify-content:space-between;gap:12px;padding-top:6px;padding-bottom:6px}
.site-head{position:sticky;top:0;z-index:50;background:var(--paper);border-bottom:var(--line)}
.head-in{display:flex;align-items:stretch;justify-content:space-between;min-height:64px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);padding:8px 0}
.brand:hover{color:var(--ink)}
.mark{width:30px;height:30px;flex:none}
.brand-txt{display:flex;flex-direction:column;line-height:1}
.brand-name{font-stretch:125%;font-weight:900;font-size:clamp(1.15rem,1rem + .8vw,1.55rem);text-transform:uppercase;letter-spacing:-.02em}
.brand-tag{font-size:.62rem;margin-top:4px;color:var(--g3)}
.main-nav ul{list-style:none;margin:0;padding:0;display:flex;height:100%}
.main-nav li{display:flex}
.main-nav a{display:flex;align-items:center;gap:6px;padding:0 14px;text-decoration:none;font-weight:600;font-size:.92rem;border-left:var(--thin);position:relative}
.main-nav a .n{font-family:var(--mono);font-size:.62rem;color:var(--g3)}
.main-nav a:hover{background:var(--ink);color:var(--paper)}
.main-nav a:hover .n{color:var(--g2)}
.main-nav a[aria-current="page"]{background:var(--ink);color:var(--paper)}
.main-nav a[aria-current="page"]::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:5px;background:var(--red)}
.head-actions{display:flex;align-items:stretch}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:52px;background:none;border:0;border-left:var(--thin);cursor:pointer;padding:0}
.icon-btn:hover{background:var(--ink);color:var(--paper)}
.btn-challenge{display:inline-flex;align-items:center;gap:6px;padding:0 14px;background:var(--red);color:var(--ink);text-decoration:none;border-left:var(--line);font-weight:700}
.btn-challenge:hover{background:var(--ink);color:var(--paper)}
.btn-challenge[aria-current="page"]{box-shadow:inset 0 -5px 0 var(--ink)}
.burger{display:none}
.burger .i-close{display:none}
.burger[aria-expanded="true"] .i-open{display:none}
.burger[aria-expanded="true"] .i-close{display:block}
.search-panel{border-top:var(--line);background:var(--white);padding:20px 0 24px}
.search-panel[hidden]{display:none}
.search-row{display:flex;align-items:center;gap:10px;border:var(--line);padding:0 12px;margin-top:8px;background:var(--paper)}
.search-row input{flex:1;border:0;background:none;padding:14px 0;font-size:1.25rem;font-stretch:112%;min-width:0}
.search-row input:focus{outline:none}
.search-row:focus-within{outline:3px solid var(--red);outline-offset:2px}
.search-results{margin-top:12px;display:grid;gap:0}
.search-results a{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:var(--thin);text-decoration:none;font-weight:700;font-stretch:112%}
.search-results a span{font-family:var(--mono);font-weight:400;font-size:.72rem;text-transform:uppercase;color:var(--g3);flex:none}
.search-results p{font-family:var(--mono);font-size:.8rem;margin:8px 0 0}

@media (max-width:1180px){
  .main-nav{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--ink);color:var(--paper);transform:translateX(100%);transition:transform .25s;z-index:60;padding:90px var(--gut) 40px;overflow:auto;visibility:hidden}
  .main-nav.open{transform:none;visibility:visible}
  .main-nav ul{flex-direction:column;height:auto}
  .main-nav a{border:0;border-bottom:1px solid #333;padding:16px 0;font-size:clamp(1.5rem,6vw,2.4rem);font-stretch:125%;font-weight:800}
  .main-nav a .n{font-size:.8rem;color:var(--red);min-width:2.2em}
  .main-nav a[aria-current="page"]{background:none;color:var(--red)}
  .main-nav a[aria-current="page"]::after{display:none}
  .burger{display:inline-flex;position:relative;z-index:70}
  .burger[aria-expanded="true"]{background:var(--paper);color:var(--ink)}
}
@media (max-width:640px){
  .hide-s{display:none}
  .btn-challenge span{display:none}
  .btn-challenge{padding:0 12px}
  .icon-btn{width:46px}
  .brand-tag{display:none}
}

/* ---------- buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 18px;border:var(--line);background:var(--paper);color:var(--ink);text-decoration:none;font-weight:700;cursor:pointer;font-size:.95rem;line-height:1.2}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn-red{background:var(--red);color:var(--ink)}
.btn-red:hover{background:var(--ink);color:var(--paper)}
.btn-ghost{background:transparent;border-color:transparent;text-decoration:underline}
.linkbtn{background:none;border:0;padding:0;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.more{display:inline-flex;align-items:center;gap:6px;font-weight:700;text-decoration:none;border-bottom:2px solid var(--red);padding-bottom:2px}
.more .i{width:18px;height:18px}
.more.big{margin-top:24px;font-size:1.05rem}

/* ---------- hero */
.hero{border-bottom:var(--line)}
.hero-top{display:flex;gap:0;border-bottom:var(--thin);margin:0 calc(var(--gut) * -1);padding:0 var(--gut)}
.hero-top span{padding:10px 16px 10px 0;margin-right:16px;border-right:var(--thin)}
.hero-top span:last-child{border-right:0}
.mega{font-size:clamp(3rem,12.2vw,12.4rem);font-weight:900;font-stretch:125%;text-transform:uppercase;line-height:.84;letter-spacing:-.035em;padding:.12em 0 .08em;display:flex;flex-wrap:wrap;column-gap:.18em}
.mega span{display:block}
.mega i{font-style:normal;color:var(--red)}
.mega .l3{color:var(--red)}
.mega .l2,.mega .l4{flex-basis:auto}
.hero-grid{display:grid;grid-template-columns:1fr;border-top:var(--line);margin:0 calc(var(--gut) * -1)}
.hero-cell{padding:22px var(--gut);border-bottom:var(--thin);text-decoration:none;display:flex;flex-direction:column;gap:10px}
.cell-l{color:var(--g3);margin:0}
.hero-feat{color:var(--ink);background:var(--white)}
.hero-feat:hover{color:var(--ink)}
.feat-img{display:block;border:var(--line);aspect-ratio:16/9;overflow:hidden}
.feat-img img{width:100%;height:100%;object-fit:cover;filter:grayscale(1) contrast(1.1);transition:filter .3s}
.hero-feat:hover .feat-img img{filter:none}
.feat-t{font-stretch:125%;font-weight:800;font-size:clamp(1.3rem,1rem + 1vw,1.8rem);line-height:1.05}
.hero-feat:hover .feat-t{text-decoration:underline;text-decoration-color:var(--red);text-decoration-thickness:3px}
.feat-m{color:var(--g3)}
.hero-ch-n{font-stretch:125%;font-weight:900;font-size:clamp(3rem,6vw,5.4rem);line-height:.9;margin:0}
.hero-ch-n span{color:var(--red)}
@media (min-width:900px){
  .hero-grid{grid-template-columns:1fr 1.25fr 1fr}
  .hero-cell{border-bottom:0;border-right:var(--thin)}
  .hero-cell:last-child{border-right:0}
}

/* ---------- section heads */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:8px 20px;border-bottom:var(--line);padding:clamp(40px,6vw,80px) 0 12px;margin-bottom:0}
.sec-t{font-size:clamp(2.4rem,7vw,6rem);font-weight:900;text-transform:uppercase;letter-spacing:-.03em;line-height:.85}
.sec-t.small{font-size:clamp(1.6rem,3.5vw,2.6rem);margin-bottom:.6em}
.sec-head .mono{margin:0;color:var(--g3)}

/* ---------- index list */
.idx-cols{display:none}
.idx-list{list-style:none;margin:0;padding:0}
.idx-item{border-bottom:var(--thin)}
.idx-row{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:0 14px;padding:16px 0;text-decoration:none;color:var(--ink);position:relative}
.idx-n{font-family:var(--mono);font-weight:700;font-size:clamp(1.3rem,3vw,2.6rem);line-height:1;min-width:2.1ch;color:var(--g2);transition:color .15s}
.idx-t{font-size:clamp(1.15rem,.9rem + 1.6vw,2.4rem);font-weight:800;font-stretch:118%;line-height:1.02;letter-spacing:-.015em;margin:0 0 6px}
.idx-meta{color:var(--g3);font-size:.7rem}
.idx-thumb{display:none}
.idx-go{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border:var(--line);transition:background .15s}
.idx-row:hover,.idx-row:focus-visible{color:var(--ink)}
.idx-row:hover .idx-n,.idx-row:focus-visible .idx-n{color:var(--red)}
.idx-row:hover .idx-go,.idx-row:focus-visible .idx-go{background:var(--red)}
.idx-row:hover .idx-t{text-decoration:underline;text-decoration-thickness:3px;text-decoration-color:var(--red);text-underline-offset:5px}
.idx-item[hidden]{display:none}
@media (min-width:900px){
  .idx-cols{display:grid;grid-template-columns:7ch 1fr 60px;gap:14px;padding:8px 0;border-bottom:var(--thin);color:var(--g3)}
  .idx-cols span:last-child{text-align:right}
  .idx-row{grid-template-columns:7ch 1fr 60px;padding:22px 0}
  .idx-go{width:56px;height:56px;justify-self:end}
}
@media (max-width:899px){
  .idx-row{grid-template-columns:auto 1fr 72px}
  .idx-thumb{display:block;width:72px;height:72px;border:var(--line);overflow:hidden}
  .idx-thumb img{width:100%;height:100%;object-fit:cover;filter:grayscale(1)}
  .idx-go{display:none}
}
.idx-preview{position:fixed;left:0;top:0;width:320px;aspect-ratio:4/3;pointer-events:none;z-index:40;border:var(--line);background:var(--ink);opacity:0;transition:opacity .15s;box-shadow:10px 10px 0 var(--red)}
.idx-preview.show{opacity:1}
.idx-preview img{width:100%;height:100%;object-fit:cover}

/* ---------- challenge widget */
.ch-sec{border-bottom:var(--line);padding-bottom:clamp(40px,6vw,72px)}
.challenge{border:var(--line);background:var(--white);margin-top:24px}
.ch-head{display:grid;grid-template-columns:1fr;border-bottom:var(--line)}
.ch-head>*{padding:16px}
.ch-l{margin:0;color:var(--g3)}
.ch-count{font-stretch:125%;font-weight:900;font-size:clamp(3rem,7vw,5.5rem);line-height:.9;margin:4px 0 0}
.ch-count [data-ch-done]{color:var(--red)}
.ch-of{color:var(--ink)}
.ch-bar-wrap{display:flex;flex-direction:column;justify-content:center;gap:10px;border-top:var(--thin)}
.ch-bar{height:26px;border:var(--line);background:repeating-linear-gradient(90deg,transparent 0 calc(100%/30 - 1px),var(--g1) calc(100%/30 - 1px) calc(100%/30))}
.ch-bar span,.ch-bar [data-ch-minifill]{display:block;height:100%;width:0;background:var(--red);transition:width .35s}
.ch-bar.small{height:14px}
.ch-status{margin:0;color:var(--g3);text-transform:none;font-size:.78rem}
.ch-reset{align-self:center;justify-self:start;margin:0 16px 16px;padding:10px 14px}
.ch-reset.confirm{background:var(--ink);color:var(--paper)}
@media (min-width:900px){
  .ch-head{grid-template-columns:auto 1fr auto;align-items:stretch}
  .ch-bar-wrap{border-top:0;border-left:var(--thin);border-right:var(--thin);padding:16px 24px}
  .ch-reset{margin:16px}
}
.ch-grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,1fr)}
@media (min-width:600px){.ch-grid{grid-template-columns:repeat(3,1fr)}}
@media (min-width:900px){.ch-grid{grid-template-columns:repeat(5,1fr)}}
@media (min-width:1200px){.ch-grid{grid-template-columns:repeat(6,1fr)}}
.ch-grid li{display:flex;border-right:var(--thin);border-bottom:var(--thin)}
.ch-day{all:unset;box-sizing:border-box;display:flex;flex-direction:column;gap:8px;width:100%;min-height:140px;padding:12px;cursor:pointer;position:relative;background:var(--white);transition:background .15s}
.ch-day:focus-visible{outline:3px solid var(--red);outline-offset:-3px}
.ch-day:hover{background:var(--g1)}
.ch-top{display:flex;justify-content:space-between;align-items:center}
.ch-n{font-family:var(--mono);font-weight:700;font-size:1.3rem;line-height:1}
.ch-box{width:26px;height:26px;border:var(--line);display:flex;align-items:center;justify-content:center;background:var(--paper)}
.ch-box .i{width:20px;height:20px;stroke-width:2.5;opacity:0}
.ch-task{font-size:.86rem;line-height:1.35}
.ch-rest{font-family:var(--mono);font-size:.64rem;text-transform:uppercase;color:var(--g3)}
.ch-day[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.ch-day[aria-pressed="true"] .ch-box{background:var(--red);border-color:var(--red)}
.ch-day[aria-pressed="true"] .ch-box .i{opacity:1;color:var(--ink)}
.ch-day[aria-pressed="true"] .ch-task{text-decoration:line-through;text-decoration-color:var(--red);text-decoration-thickness:2px}
.ch-day[aria-pressed="true"] .ch-rest{color:var(--g2)}
.ch-day.today{box-shadow:inset 0 0 0 4px var(--red)}

/* ---------- modules */
.modules{border-bottom:var(--line);background:var(--white)}
.mod-grid{display:grid;grid-template-columns:1fr}
.mod{padding:28px 0;border-bottom:var(--thin)}
.mod:last-child{border-bottom:0}
.mod-t{margin:0 0 18px;font-size:.78rem;font-weight:700;letter-spacing:.02em;font-stretch:100%}
@media (min-width:700px){.mod-grid{grid-template-columns:1fr 1fr}.mod{padding:28px 24px 28px 0}.mod:nth-child(2n){padding-left:24px;border-left:var(--thin)}}
@media (min-width:1200px){.mod-grid{grid-template-columns:repeat(4,1fr)}.mod{border-bottom:0;padding:32px 24px}.mod:first-child{padding-left:0}.mod+.mod{border-left:var(--thin)}}
.stats{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:var(--thin);border-left:var(--thin)}
.stats div{border-right:var(--thin);border-bottom:var(--thin);padding:10px}
.stats dt{font-family:var(--mono);font-size:.62rem;text-transform:uppercase;color:var(--g3)}
.stats dd{margin:4px 0 0;font-stretch:125%;font-weight:900;font-size:clamp(1.3rem,2.3vw,1.9rem);line-height:1}
.stats.big{grid-template-columns:repeat(2,1fr);margin-top:clamp(40px,6vw,72px)}
.stats.big dd{font-size:clamp(2.2rem,6vw,4.6rem);color:var(--ink)}
.stats.big div:nth-child(odd) dd{color:var(--red-ink)}
@media (min-width:900px){.stats.big{grid-template-columns:repeat(4,1fr)}}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{display:inline-block;border:var(--thin);padding:5px 8px;text-decoration:none;font-size:.7rem;background:var(--paper)}
.tag:hover{background:var(--ink);color:var(--paper)}
.comments{list-style:none;margin:0;padding:0}
.comments li{border-bottom:var(--thin);padding:0 0 12px;margin-bottom:12px}
.comments li:last-child{border:0;margin:0}
.comments p{display:flex;gap:8px;margin:0 0 6px;font-size:.92rem;line-height:1.4}
.comments .i{width:18px;height:18px;color:var(--red)}
.comments a{font-size:.68rem;color:var(--g3)}
.news-form label{display:block;margin-bottom:6px}
.field-row{display:flex;border:var(--line)}
.field-row input{flex:1;min-width:0;border:0;padding:12px;background:var(--paper)}
.field-row input:focus{outline:none}
.field-row:focus-within{outline:3px solid var(--red);outline-offset:2px}
.field-row .btn{border:0;border-left:var(--line);padding:0 14px}
.form-note{margin:8px 0 0;color:var(--g3);text-transform:none;font-size:.7rem}

/* ---------- category cards */
.cat-cards{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr;border-left:var(--line)}
@media (min-width:800px){.cat-cards{grid-template-columns:repeat(3,1fr)}}
.cat-card{border-right:var(--line);border-bottom:var(--line)}
.cat-card a{display:flex;flex-direction:column;height:100%;text-decoration:none;color:var(--ink)}
.cat-img{display:block;aspect-ratio:4/3;overflow:hidden;border-bottom:var(--line)}
.cat-img img{width:100%;height:100%;object-fit:cover;filter:grayscale(1);transition:filter .3s,transform .5s}
.cat-card a:hover .cat-img img{filter:none;transform:scale(1.03)}
.cat-body{display:flex;flex-direction:column;gap:8px;padding:18px;flex:1;position:relative}
.cat-l{color:var(--g3)}
.cat-n{font-stretch:125%;font-weight:900;font-size:clamp(1.5rem,2.5vw,2.2rem);text-transform:uppercase;line-height:.95}
.cat-d{font-size:.95rem;padding-right:50px}
.cat-go{position:absolute;right:18px;bottom:18px;width:40px;height:40px;border:var(--line);display:flex;align-items:center;justify-content:center}
.cat-card a:hover .cat-go{background:var(--red)}
.cats-sec .cat-cards{margin-top:0}

/* ---------- photo strip */
.strip-sec{padding:clamp(40px,6vw,80px) 0}
.strip{display:grid;grid-template-columns:repeat(2,1fr);border-top:var(--line);border-left:var(--line)}
@media (min-width:900px){.strip{grid-template-columns:repeat(4,1fr)}}
.strip figure{margin:0;border-right:var(--line);border-bottom:var(--line);background:var(--white)}
.strip img{aspect-ratio:1;object-fit:cover;width:100%;filter:grayscale(1)}
.strip figure:hover img{filter:none}
.strip figcaption{padding:8px 10px;font-size:.66rem;border-top:var(--thin)}
.strip figcaption span{color:var(--red-ink);font-weight:700}

/* ---------- breadcrumbs & page heads */
.crumbs{padding:14px 0;border-bottom:var(--thin);font-size:.68rem}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 0}
.crumbs li{display:flex;align-items:center}
.crumbs li+li::before{content:"/";margin:0 8px;color:var(--g2)}
.crumbs a{text-decoration:none;border-bottom:1px solid var(--g2)}
.crumbs [aria-current]{color:var(--g3)}
.page-head{padding:clamp(28px,5vw,64px) 0 clamp(20px,3vw,36px);border-bottom:var(--line)}
.ph-l{color:var(--red-ink);margin:0 0 14px;font-weight:700}
.page-t{font-size:clamp(2.6rem,9vw,8rem);font-weight:900;text-transform:uppercase;letter-spacing:-.035em;line-height:.86;margin:0 0 .3em}
.page-lead{max-width:60ch;font-size:clamp(1.05rem,1rem + .4vw,1.3rem);margin:0}

/* ---------- archive filters */
.filters{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:24px;border:var(--line);background:var(--white)}
.filters>.i{margin:0 12px}
.filter-btn{background:none;border:0;border-left:var(--thin);padding:12px 14px;cursor:pointer;display:flex;gap:6px;align-items:center}
.filter-btn span{color:var(--g3)}
.filter-btn:hover{background:var(--g1)}
.filter-btn[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.filter-btn[aria-pressed="true"] span{color:var(--red)}
@media (max-width:640px){.filters>.i{display:none}.filter-btn{flex:1 1 50%;border-bottom:var(--thin);justify-content:space-between}.filter-btn:nth-of-type(odd){border-left:0}}
.filter-status{margin:12px 0;color:var(--g3)}

/* ---------- category head */
.cat-head{display:grid;grid-template-columns:1fr;gap:20px;padding:clamp(28px,5vw,56px) 0;border-bottom:var(--line);align-items:end}
.cat-letter{font-stretch:125%;font-weight:900;font-size:clamp(6rem,20vw,16rem);line-height:.75;color:var(--red);margin:0}
.cat-fig{margin:0;border:var(--line)}
.cat-fig img{aspect-ratio:4/3;object-fit:cover;width:100%;filter:grayscale(1) contrast(1.05)}
@media (min-width:900px){.cat-head{grid-template-columns:auto 1.4fr 1fr;gap:36px}}

/* ---------- article */
.read-progress{position:fixed;left:0;right:0;top:0;height:5px;z-index:80;pointer-events:none}
.read-progress span{display:block;height:100%;width:0;background:var(--red)}
.art-head{display:grid;grid-template-columns:1fr;gap:12px;padding:clamp(24px,4vw,48px) 0;border-bottom:var(--line)}
.art-num{font-family:var(--mono);font-weight:700;font-size:clamp(3.2rem,10vw,9rem);line-height:.8;color:var(--red)}
.cat-chip{display:inline-block;border:var(--line);padding:5px 10px;text-decoration:none;background:var(--white);margin-bottom:16px}
.cat-chip:hover{background:var(--ink);color:var(--paper)}
.art-head h1{font-size:clamp(2rem,1.2rem + 4.2vw,5.2rem);font-weight:900;letter-spacing:-.03em;line-height:.92;margin-bottom:.4em;max-width:18ch;text-wrap:balance}
.art-lead{font-size:clamp(1.08rem,1rem + .45vw,1.35rem);max-width:62ch;line-height:1.5}
.art-meta{display:flex;flex-wrap:wrap;border:var(--line);background:var(--white);width:fit-content;max-width:100%}
.art-meta>*{display:flex;align-items:center;gap:6px;padding:9px 12px;border-right:var(--thin)}
.art-meta>*:last-child{border-right:0}
.art-meta .i{width:18px;height:18px}
.share-btn{background:var(--red);border:0;cursor:pointer;font:inherit;text-transform:inherit;letter-spacing:inherit}
.share-btn:hover{background:var(--ink);color:var(--paper)}
@media (min-width:900px){.art-head{grid-template-columns:minmax(160px,220px) 1fr;gap:36px}}
.art-hero{margin:0;border-bottom:var(--line);margin:0 calc(var(--gut) * -1)}
.art-hero img{width:100%;max-height:min(70vh,640px);object-fit:cover}
.art-hero figcaption{padding:8px var(--gut);font-size:.66rem;border-top:var(--line);color:var(--g3);background:var(--white)}
.art-grid{display:grid;grid-template-columns:1fr;gap:0}
.art-side{padding:24px 0;border-bottom:var(--thin);display:grid;gap:24px}
.side-t{margin:0 0 10px;color:var(--g3)}
.toc ol{list-style:none;margin:0;padding:0;border-top:var(--thin)}
.toc li{border-bottom:var(--thin)}
.toc a{display:flex;gap:10px;padding:8px 0;text-decoration:none;font-size:.92rem;font-weight:600;line-height:1.25}
.toc a span{color:var(--red-ink);flex:none}
.toc a.active{color:var(--red-ink)}
.rating{border:var(--line);padding:14px;background:var(--white)}
.rating-n{font-stretch:125%;font-weight:900;font-size:3rem;line-height:.9;margin:0 0 10px}
.rating-n span{font-size:1.1rem;color:var(--g3)}
.rating-svg{width:100%;max-width:220px;height:auto;display:block}
.rating-note{margin:10px 0 0;color:var(--g3);font-size:.64rem}
.art-body{min-width:0;padding-bottom:40px}
.art-sec{padding-top:8px}
.art-sec h2{font-size:clamp(1.5rem,1.1rem + 1.6vw,2.4rem);font-weight:800;margin:1.6em 0 .6em;display:flex;gap:12px;align-items:baseline;border-top:var(--line);padding-top:16px}
.h-n{color:var(--red-ink);font-size:.9rem;flex:none}
.art-body p,.art-body li{max-width:66ch}
.art-body ul,.art-body ol{padding-left:0;list-style:none;margin:0 0 1.2em}
.steps{counter-reset:s}
.steps li{counter-increment:s;display:grid;grid-template-columns:44px 1fr;gap:10px;padding:10px 0;border-bottom:var(--thin)}
.steps li::before{content:counter(s,decimal-leading-zero);font-family:var(--mono);font-weight:700;color:var(--red-ink)}
.checklist li{position:relative;padding:8px 0 8px 34px;border-bottom:var(--thin)}
.checklist li::before{content:"";position:absolute;left:0;top:12px;width:16px;height:16px;border:2px solid var(--ink);background:linear-gradient(var(--red),var(--red)) center/8px 8px no-repeat}
table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:.92rem;background:var(--white);border:var(--line)}
th,td{text-align:left;padding:10px 12px;border-bottom:var(--thin);vertical-align:top}
th{font-family:var(--mono);font-size:.7rem;text-transform:uppercase;background:var(--ink);color:var(--paper);font-weight:700}
tr:last-child td{border-bottom:0}
.table-wrap{overflow-x:auto;border:0}
.art-body table{display:block;overflow-x:auto}
@media (min-width:640px){.art-body table{display:table}}
code{font-family:var(--mono);font-size:.85em;background:var(--g1);padding:1px 4px}
.fig{margin:1.8em 0;border:var(--line);background:var(--white)}
.fig img{width:100%}
.fig figcaption{padding:10px 12px;border-top:var(--line);font-size:.68rem;text-transform:none;line-height:1.45}
.fig figcaption span{color:var(--red-ink);font-weight:700;text-transform:uppercase}
.tipbox{display:flex;gap:14px;border:var(--line);border-left:12px solid var(--red);background:var(--white);padding:16px;margin:1.6em 0}
.tipbox .i{color:var(--red-ink)}
.tip-t{font-weight:700;margin:0 0 4px}
.tipbox p:last-child{margin:0}
/* margin notes */
.sn-ref{font-family:var(--mono);font-size:.68rem;line-height:0;margin-left:2px}
.sn-ref a{text-decoration:none;background:var(--red);color:var(--ink);padding:1px 3px;font-weight:700}
.sn{display:block;margin:12px 0;padding:10px 12px;border-left:4px solid var(--red);background:var(--g1);font-size:.85rem;line-height:1.45}
.sn b{display:block;color:var(--red-ink);margin-bottom:2px}
.faq-item{border-bottom:var(--thin)}
.faq-item:first-of-type{border-top:var(--thin)}
.faq-item summary{list-style:none;display:flex;justify-content:space-between;gap:16px;cursor:pointer;padding:14px 0;font-weight:700;font-stretch:110%}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .i{transition:transform .2s}
.faq-item[open] summary .i{transform:rotate(45deg);color:var(--red-ink)}
.faq-item p{margin:0 0 16px}
.art-tags{display:flex;flex-wrap:wrap;gap:6px;margin:28px 0}
.author-box{display:grid;grid-template-columns:96px 1fr;gap:16px;border:var(--line);padding:16px;background:var(--white)}
.author-img{width:96px;height:96px;object-fit:cover;border:var(--line);filter:grayscale(1)}
.author-n{font-stretch:125%;font-weight:800;font-size:1.3rem;margin:0}
.author-r{color:var(--g3);margin:2px 0 8px}
.author-box p:last-child{margin:0;font-size:.95rem}
.art-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.related{border-top:var(--line);background:var(--white);padding-bottom:48px}
@media (min-width:1100px){
  .art-grid{grid-template-columns:230px minmax(0,640px) 1fr;gap:0 40px}
  .art-side{align-self:start;position:sticky;top:90px;border-bottom:0;padding:32px 0;grid-column:1}
  .art-body{grid-column:2;padding-top:8px}
  .sn{float:right;clear:right;width:clamp(220px,20vw,300px);margin:4px calc(-1 * clamp(220px,20vw,300px) - 40px) 12px 0;background:none;border-left:0;border-top:3px solid var(--red);padding:8px 0 0;font-size:.8rem;color:var(--g3)}
  .sn b{font-size:1.4rem;color:var(--ink);font-family:var(--mono);line-height:1}
}

/* ---------- prose pages */
.prose{max-width:760px;padding:24px 0 48px}
.prose h2{font-size:clamp(1.3rem,1rem + 1.2vw,2rem);margin:1.6em 0 .5em;border-top:var(--line);padding-top:14px}
.prose ul{list-style:none;padding:0}
.small-note{color:var(--g3);text-transform:none;font-size:.72rem;margin-top:12px}
.credits td{font-size:.82rem;word-break:break-word}
.credits a{display:inline-flex;gap:4px;align-items:center}
.credits .i{width:14px;height:14px}

/* ---------- about */
.split{display:grid;grid-template-columns:1fr;gap:24px;padding:clamp(32px,5vw,64px) 0;border-bottom:var(--thin);align-items:start}
@media (min-width:900px){.split{grid-template-columns:1fr 1fr;gap:48px}}
.split .fig{margin:0}
.split-txt p{max-width:62ch}
.ruler{display:block;width:100%;height:24px;margin:24px 0;color:var(--ink)}
.values{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr;border-left:var(--line)}
@media (min-width:700px){.values{grid-template-columns:1fr 1fr}}
@media (min-width:1100px){.values{grid-template-columns:repeat(4,1fr)}}
.value{border-right:var(--line);border-bottom:var(--line);padding:20px;background:var(--white)}
.value .i{width:40px;height:40px;color:var(--red-ink);margin-bottom:14px}
.value h3{font-size:1.25rem;margin-bottom:8px}
.value p{margin:0;font-size:.95rem}
.team{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr;border-left:var(--line)}
@media (min-width:600px){.team{grid-template-columns:1fr 1fr}}
@media (min-width:1100px){.team{grid-template-columns:repeat(4,1fr)}}
.team-card{border-right:var(--line);border-bottom:var(--line);background:var(--white)}
.team-card img{aspect-ratio:1;object-fit:cover;width:100%;filter:grayscale(1);border-bottom:var(--line)}
.team-b{padding:16px}
.team-n{color:var(--red-ink);margin:0 0 4px}
.team-b h3{font-size:1.3rem}
.team-r{color:var(--g3);margin:6px 0 10px;text-transform:none}
.team-b p:last-child{font-size:.92rem;margin:0}
.plan{margin:0;border:var(--line);background:var(--white);padding:16px}
.plan figcaption,.map figcaption{margin-top:10px;font-size:.66rem}
.plan-svg,.map-svg,.illu-404{width:100%;height:auto;display:block;color:var(--ink)}

/* ---------- contact */
.contact-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:32px 0}
@media (min-width:900px){.contact-grid{grid-template-columns:1.5fr 1fr;gap:48px}}
.contact-form{border:var(--line);background:var(--white);padding:clamp(16px,3vw,28px)}
.field{margin-bottom:16px}
.field label{display:block;margin-bottom:6px;font-weight:700}
.field input,.field select,.field textarea{width:100%;border:var(--line);background:var(--paper);padding:12px;border-radius:0;-webkit-appearance:none;appearance:none}
.field textarea{resize:vertical}
.field.check{display:grid;grid-template-columns:24px 1fr;gap:10px;align-items:start}
.field.check input{width:22px;height:22px;-webkit-appearance:auto;appearance:auto;accent-color:var(--red);margin:2px 0 0}
.field.check label{font-family:var(--sans);font-weight:400;text-transform:none;font-size:.92rem;letter-spacing:0}
.field.check .err{grid-column:2}
.err{color:var(--red-ink);margin:6px 0 0;text-transform:none;font-size:.72rem;min-height:0}
.err:empty{display:none}
.field.invalid input,.field.invalid textarea{border-color:var(--red-ink);box-shadow:inset 6px 0 0 var(--red)}
.contact-dl{margin:0;border:var(--line);background:var(--white)}
.contact-dl div{padding:14px 16px;border-bottom:var(--thin)}
.contact-dl div:last-child{border:0}
.contact-dl dt{display:flex;align-items:center;gap:8px;color:var(--g3);margin-bottom:4px}
.contact-dl dt .i{width:18px;height:18px;color:var(--red-ink)}
.contact-dl dd{margin:0;font-weight:600}
.map-sec{padding-bottom:48px}
.map-grid{display:grid;grid-template-columns:1fr;gap:24px;margin-top:24px}
@media (min-width:900px){.map-grid{grid-template-columns:1.3fr 1fr}}
.map{margin:0;border:var(--line);background:var(--white);padding:12px}
.map-grid .fig{margin:0}
.contact-list{list-style:none;padding:0;margin:0 0 14px}

/* ---------- challenge page */
.rules{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr;border-left:var(--line)}
@media (min-width:800px){.rules{grid-template-columns:repeat(4,1fr)}}
.rules li{border-right:var(--line);border-bottom:var(--line);padding:18px;background:var(--white)}
.rules li>span{font-size:2rem;color:var(--red-ink);font-weight:700;display:block;margin-bottom:10px}
.rules h3{font-size:1.2rem;margin-bottom:8px}
.rules p{margin:0;font-size:.94rem}
.weeks{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr;border-left:var(--line)}
@media (min-width:700px){.weeks{grid-template-columns:1fr 1fr}}
@media (min-width:1100px){.weeks{grid-template-columns:repeat(4,1fr)}}
.week{border-right:var(--line);border-bottom:var(--line);background:var(--white)}
.week img{aspect-ratio:3/2;object-fit:cover;width:100%;filter:grayscale(1);border-bottom:var(--line)}
.week-b{padding:16px}
.week-b .mono{color:var(--red-ink);margin:0 0 6px}
.week-b h3{font-size:1.2rem;margin-bottom:8px}
.week-b p:last-child{margin:0;font-size:.92rem}
.ch-page-head + .challenge{margin-top:32px}

/* ---------- 404 */
.e404{display:grid;grid-template-columns:1fr;gap:32px;padding:clamp(28px,5vw,64px) 0;border-bottom:var(--line);align-items:center}
@media (min-width:900px){.e404{grid-template-columns:1fr 1fr}}
.e404-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.illu-404{border:var(--line);background:var(--white);padding:12px}

/* ---------- footer */
.site-foot{background:var(--ink);color:var(--paper);margin-top:0;padding-top:24px}
.foot-mega{font-stretch:125%;font-weight:900;text-transform:uppercase;font-size:clamp(2.6rem,11.4vw,11.2rem);line-height:.8;letter-spacing:-.045em;margin:0 0 24px;border-bottom:2px solid var(--paper);padding-bottom:12px;overflow:hidden}
.foot-mega span{color:var(--red)}
.foot-grid{display:grid;grid-template-columns:1fr;gap:0}
@media (min-width:700px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1100px){.foot-grid{grid-template-columns:1.3fr 1fr 1fr 1.2fr}}
.foot-col{padding:20px 0;border-bottom:1px solid #333}
@media (min-width:1100px){.foot-col{border-bottom:0;padding:20px 24px}.foot-col:first-child{padding-left:0}.foot-col+.foot-col{border-left:1px solid #333}}
.foot-col h2{font-size:.74rem;color:var(--red);margin:0 0 14px;font-stretch:100%}
.foot-col p{color:#cfcdc7;font-size:.95rem}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin-bottom:8px}
.foot-col a,.foot-col .linkbtn{color:var(--paper);text-decoration:none;border-bottom:1px solid #555}
.foot-col a:hover,.foot-col .linkbtn:hover{color:var(--red);border-color:var(--red)}
.foot-col .linkbtn{font-size:inherit}
.foot-col .more{border-bottom:2px solid var(--red)}
.contact-list li{display:flex;gap:10px;align-items:flex-start}
.contact-list .i{width:20px;height:20px;color:var(--red)}
.foot-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 20px;border-top:2px solid var(--paper);padding:16px 0 24px;margin-top:12px;font-size:.68rem}
.foot-bottom a{color:var(--paper);text-decoration:none;display:inline-flex;gap:4px;align-items:center}
.foot-bottom .i{width:16px;height:16px}

/* ---------- cookie banner / modal / toast */
.cookie-banner{position:fixed;left:0;right:0;bottom:0;z-index:90;padding:12px}
.cookie-banner[hidden]{display:none}
.cookie-in{max-width:980px;margin:0 auto;background:var(--paper);border:var(--line);box-shadow:8px 8px 0 var(--ink);padding:16px;display:grid;gap:12px}
.cookie-in p{margin:0;font-size:.92rem}
.cookie-in strong{color:var(--red-ink)}
.cookie-actions{display:flex;flex-wrap:wrap;gap:8px}
@media (min-width:800px){.cookie-in{grid-template-columns:1fr auto;align-items:center}}
.modal{position:fixed;inset:0;z-index:100;background:rgba(11,11,11,.7);display:flex;align-items:center;justify-content:center;padding:16px}
.modal[hidden]{display:none}
.modal-box{background:var(--paper);border:var(--line);box-shadow:10px 10px 0 var(--red);width:100%;max-width:560px;max-height:90vh;overflow:auto}
.modal-head{display:flex;justify-content:space-between;align-items:stretch;border-bottom:var(--line)}
.modal-head h2{font-size:1.4rem;padding:16px}
.modal-head .icon-btn{border-left:var(--line)}
.pref{display:flex;justify-content:space-between;gap:16px;padding:16px;border-bottom:var(--thin)}
.pref h3{font-size:1rem;margin-bottom:4px}
.pref p{margin:0;font-size:.88rem;color:var(--g3)}
.toggle{flex:none;width:58px;height:30px;border:var(--line);background:var(--white);padding:0;cursor:pointer;position:relative}
.toggle span{position:absolute;top:3px;left:3px;width:20px;height:20px;background:var(--ink);transition:left .2s}
.toggle.on{background:var(--red)}
.toggle.on span{left:31px}
.toggle:disabled{opacity:.6;cursor:not-allowed}
.modal-foot{padding:16px;display:flex;justify-content:flex-end}
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,160%);z-index:110;background:var(--ink);color:var(--paper);border-left:8px solid var(--red);padding:14px 18px;max-width:min(92vw,520px);text-transform:none;font-size:.8rem;transition:transform .25s}
.toast.show{transform:translate(-50%,0)}
.back-top{position:fixed;right:16px;bottom:16px;z-index:70;width:48px;height:48px;border:var(--line);background:var(--red);cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .2s}
.back-top.show{opacity:1;pointer-events:auto}
.back-top:hover{background:var(--ink);color:var(--paper)}
.cookie-open .back-top{bottom:calc(16px + var(--cb,0px))}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}
@media print{.site-head,.topline,.site-foot,.cookie-banner,.back-top,.art-side,.read-progress{display:none}}
.sub-h{font-size:clamp(1.15rem,1rem + .6vw,1.5rem);font-weight:800;margin:1.6em 0 .6em;padding-left:14px;border-left:6px solid var(--ink)}
.arch-head{display:grid;grid-template-columns:1fr;gap:24px;align-items:end}
@media (min-width:900px){.arch-head{grid-template-columns:1.6fr 1fr}}
.hero-top span{white-space:nowrap}
@media (max-width:640px){.hero-top{overflow:hidden}.hero-top span{padding:8px 8px 8px 0;margin-right:8px;font-size:.62rem}}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--ink) 50%),linear-gradient(135deg,var(--ink) 50%,transparent 50%);background-position:calc(100% - 22px) 50%,calc(100% - 16px) 50%;background-size:6px 6px,6px 6px;background-repeat:no-repeat;padding-right:40px}