/* WELTAUFGANG. One reading column of ~65ch under a pre-dawn band; the register
   is a ledger that may run wider and scroll on its own. One ornament: the
   horizon. Light or dark follows the visitor's system setting, nothing else.
   The faces are in fonts/fonts.css (tools/fetch_fonts.py). */


:root{
  --paper:#f2f0ea;       /* warm grey off-white, the sheet before sunrise */
  --ink:#1d1b17;         /* warm near-black */
  --dawn:#5c6974;        /* pre-dawn grey-blue: secondary text, rules */
  --rule:#cdc8bd;
  --gold:#a97c25;        /* horizon ochre: the one accent */
  --on-gold:#ffffff;
  --band:#e6e4de;        /* upper band, retinted by local hour */
  --field:#faf9f6;       /* form fields */
  --alert:#9a3b1f;
  --serif:"Literata",Georgia,"Times New Roman",serif;
  --sans:"Source Sans 3","Helvetica Neue",Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,"SF Mono",Menlo,monospace;
  color-scheme:light;
}
/* The band knows what time it is (site.js sets data-hour): night, dawn, morning. */
:root[data-hour="night"]{--band:#dfe1e2}
:root[data-hour="dawn"]{--band:#e4e2d8}
:root[data-hour="morning"]{--band:#ebe6d6}
@media (prefers-color-scheme: dark){
  :root{
    --paper:#11151d; --ink:#e7e3da; --dawn:#8b97a4; --rule:#28303c; --gold:#d2a44a; --on-gold:#11151d;
    --band:#0c1017; --field:#171c26; --alert:#e48a6a; color-scheme:dark;
  }
  :root[data-hour="night"]{--band:#0a0d14}
  :root[data-hour="dawn"]{--band:#161a22}
  :root[data-hour="morning"]{--band:#1a1c22}
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);font-size:1.125rem;line-height:1.6;font-feature-settings:"onum" 1,"kern" 1;-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column}
body>main{flex:1 0 auto}

/* frame */
.wrap{max-width:68rem;margin:0 auto;padding-inline:max(16px,min(4vw,2.5rem));width:100%}
.measure{max-width:65ch}
a{color:inherit;text-decoration:underline;text-decoration-color:var(--rule);text-underline-offset:.18em}
a:hover,a:focus-visible{text-decoration-color:var(--gold)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.sr,.hp{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
.hp{left:-9999px}

/* masthead */
header.mast{background:var(--band);padding-top:env(safe-area-inset-top,0px)}
@media (prefers-reduced-motion:no-preference){header.mast{transition:background 1.2s}}
/* The paddings make room for the brand's second line: the masthead keeps the height it had with one. */
.mastrow{display:flex;flex-wrap:wrap;gap:.75rem 2rem;align-items:baseline;justify-content:space-between;padding-block:.9rem .6rem}
.mast-slim .mastrow{padding-block:.9rem .93rem}
/* The name and its line are the same width: the line's width is the block's,
   and the name's size is set so its letters span exactly that (measured with
   the self-hosted fonts). The last letter's spacing is taken back, or the
   name would end a little short of the line. */
.brand{display:inline-grid;justify-items:start;gap:.3rem;font-size:.75rem;line-height:1;text-decoration:none}
.brand-name{font-family:var(--sans);font-weight:600;font-size:1.6558em;letter-spacing:.22em;margin-right:-.22em;white-space:nowrap}
.brand-line{font-family:var(--serif);font-style:italic;font-size:1em;color:var(--dawn);white-space:nowrap}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.3rem 1.3rem;font-family:var(--sans);font-size:.9rem;color:var(--dawn)}
nav.main a{text-decoration:none}
nav.main a:hover{color:var(--ink)}

/* opening */
.open{padding-block:2.22rem 3.5rem}
.horizon{display:block;width:100%;height:auto;overflow:visible;pointer-events:none}
/* The sun rises while someone reads, too slowly to see it move (under a
   tenth of a pixel a second). It starts as a sliver above the line, stands
   clear of the horizon after 15 minutes, then keeps rising, slowing as a sun
   does, into the space above the line for another 45 minutes, and stays.
   Pure CSS, nothing stored: a new page view starts at dawn again.
   In SVG, px in a transform are user units of the 1000-wide viewBox. */
.sun{animation:rise 3600s both}
@keyframes rise{
  0%{transform:translateY(0);animation-timing-function:linear}
  25%{transform:translateY(-40px);animation-timing-function:cubic-bezier(.2,.6,.4,1)}
  100%{transform:translateY(-80px)}
}
@media (prefers-reduced-motion:reduce){.sun{animation:none;transform:translateY(-40px)}}
.open h1{font-family:var(--serif);font-weight:400;font-size:clamp(1.75rem,3.6vw,2.6rem);line-height:1.25;margin:1.6rem 0 1.2rem;text-wrap:balance;letter-spacing:-.005em}
.open p.lede{font-size:1.25rem;margin:0 0 1rem}
.count{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:1.05rem;color:var(--dawn)}
.count strong{color:var(--gold);font-weight:500}
.actions{display:flex;flex-wrap:wrap;gap:.8rem 1.6rem;align-items:center;margin-top:1.8rem;font-family:var(--sans)}
.actions p{margin:0}
.btn{display:inline-block;font-family:var(--sans);font-weight:600;font-size:.95rem;letter-spacing:.02em;padding:.7rem 1.3rem;border:1.5px solid var(--ink);color:var(--ink);text-decoration:none;background:transparent;cursor:pointer;border-radius:0;line-height:1.3}
.btn:hover{background:var(--ink);color:var(--paper)}
.btn.primary{background:var(--ink);color:var(--paper)}
.btn.primary:hover{background:var(--gold);border-color:var(--gold);color:var(--on-gold)}
.btn.danger{border-color:var(--alert);color:var(--alert)}
.btn.danger:hover{background:var(--alert);color:var(--paper)}
.quiet{font-family:var(--sans);font-size:.95rem;color:var(--dawn)}

/* sections */
section{padding-block:3.2rem;border-top:1px solid var(--rule)}
section.first{border-top:0;padding-block:3rem 4rem}
.eyebrow{font-family:var(--sans);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--dawn);margin:0 0 1rem}
.eyebrow a{text-decoration:none}
.eyebrow.tight{margin-bottom:.4rem}
h2{font-family:var(--serif);font-weight:400;font-size:clamp(1.5rem,2.6vw,2rem);line-height:1.25;margin:0 0 1.2rem;text-wrap:balance}
h2.sub{font-size:1.3rem;margin-top:2.4rem}
h3{font-family:var(--sans);font-weight:600;font-size:1rem;margin:1.6rem 0 .5rem}
h1.pagehead{font-family:var(--serif);font-weight:400;font-size:clamp(1.6rem,3.2vw,2.3rem);line-height:1.25;margin:0 0 1.2rem;text-wrap:balance}
p{margin:0 0 1rem}
.premise p{font-size:1.15rem}
.premise .closing{font-size:1.25rem;margin-top:1.4rem}
.word{border-left:2px solid var(--gold);padding-left:1.2rem;color:var(--dawn);font-style:italic;margin:1.6rem 0}
.small{font-family:var(--sans);font-size:.9rem;color:var(--dawn)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.wh{color:var(--dawn);font-style:italic}

/* threshold */
.thresh{display:grid;gap:1.4rem}
.thresh svg{display:block;width:100%;height:auto}
.svgmono{font-family:var(--mono);font-size:13px}
.counts{display:flex;flex-wrap:wrap;gap:.5rem 2.2rem;font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:.95rem;color:var(--dawn)}
.counts b{font-weight:500;color:var(--ink)}
.layers{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(10rem,1fr));gap:0;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.layers li{padding:.9rem .9rem .9rem .2rem;font-family:var(--sans);font-size:.92rem;color:var(--dawn);border-right:1px solid var(--rule)}
.layers li:last-child{border-right:0}
.layers li .n{display:block;font-family:var(--mono);font-size:.8rem;margin-top:.15rem}
.layers li .k{display:block;color:var(--ink);font-weight:600}
.layers li.now{color:var(--ink)}
.layers li.now .k::after{content:" ·";color:var(--gold)}
.layers li .now-tag{display:inline-block;margin-top:.35rem;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold)}
.meeting{border:1px solid var(--gold);padding:1.2rem 1.4rem;margin-top:.6rem}
.meeting .mono{color:var(--gold)}

/* register */
.filters{display:flex;flex-wrap:wrap;gap:.4rem .6rem;font-family:var(--sans);font-size:.85rem;margin:0 0 1rem;align-items:center}
.filters span{color:var(--dawn);margin-right:.3rem}
.chip{font:inherit;background:transparent;border:1px solid var(--rule);color:var(--ink);padding:.25rem .7rem;cursor:pointer;border-radius:0}
.chip[aria-pressed="true"]{border-color:var(--ink);background:var(--ink);color:var(--paper)}
.ledger-wrap{overflow-x:auto;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
.ledger-wrap.empty{padding-block:1.4rem .4rem}
table.ledger{width:100%;min-width:56rem;border-collapse:collapse;font-family:var(--sans);font-size:.92rem;line-height:1.4}
.ledger th{text-align:left;font-weight:600;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--dawn);padding:.7rem .6rem .5rem 0;border-bottom:1px solid var(--rule);white-space:nowrap}
.ledger td{vertical-align:top;padding:.75rem .6rem .75rem 0;border-bottom:1px solid var(--rule)}
.ledger tr:last-child td{border-bottom:0}
.ledger td.no,.ledger td.since{font-family:var(--mono);font-variant-numeric:tabular-nums;white-space:nowrap;color:var(--dawn)}
.ledger td.who{white-space:nowrap}
.ledger td.what{min-width:16rem;font-family:var(--serif);font-size:.98rem}
.ledger td.broken{min-width:16rem;color:var(--dawn)}
.ledger td.f{white-space:nowrap}
.ledger tr[hidden]{display:none}
.ledger-foot{display:flex;flex-wrap:wrap;gap:.4rem 2rem;justify-content:space-between;margin-top:.8rem}

/* fields */
.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(16rem,1fr));gap:2rem 2.5rem}
.fields h3{margin-top:0;font-family:var(--sans);letter-spacing:.14em;text-transform:uppercase;font-size:.78rem;color:var(--gold)}
.fields p{font-size:1.02rem}
.fields ul{list-style:none;margin:0;padding:0;font-family:var(--sans);font-size:.92rem}
.fields li{padding:.45rem 0;border-top:1px solid var(--rule);display:grid;grid-template-columns:1fr auto;gap:.6rem}
.fields li .d{font-family:var(--mono);font-variant-numeric:tabular-nums;color:var(--dawn);white-space:nowrap;font-size:.82rem}
.fields li .p{display:block;color:var(--dawn);font-size:.85rem}

/* post-mortems */
.pm{display:grid;grid-template-columns:repeat(auto-fit,minmax(18rem,1fr));gap:2rem 2.5rem;margin-top:1.4rem}
.pm article{border-top:1px solid var(--ink);padding-top:.9rem}
.pm .meta{font-family:var(--mono);font-size:.82rem;color:var(--dawn);margin:0 0 .5rem}
.pm h3{margin:0 0 .5rem;font-family:var(--serif);font-weight:500;font-size:1.15rem}
.seven{columns:2;column-gap:2.5rem;font-family:var(--sans);font-size:.95rem;padding-left:1.2rem;margin:1rem 0}
.seven li{break-inside:avoid;margin-bottom:.4rem}
@media (max-width:640px){.seven{columns:1}}

/* forms */
form.entry{display:grid;gap:1.1rem;max-width:44rem;margin-top:1.4rem;position:relative}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
.row2>*{min-width:0}
@media (max-width:560px){.row2{grid-template-columns:1fr}}
label{display:block;font-family:var(--sans);font-size:.82rem;font-weight:600;letter-spacing:.02em;margin-bottom:.3rem}
label .req{color:var(--gold)}
label .hint{display:block;font-weight:400;color:var(--dawn);font-size:.8rem;margin-top:.1rem}
input[type=text],input[type=email],input[type=url],input[type=number],select,textarea{width:100%;font:inherit;font-family:var(--sans);font-size:1rem;padding:.6rem .7rem;border:1px solid var(--rule);background:var(--field);color:var(--ink);border-radius:0;min-width:0}
textarea{min-height:6.5rem;resize:vertical;line-height:1.5}
fieldset{border:0;padding:0;margin:0;min-width:0}
fieldset legend{font-family:var(--sans);font-size:.82rem;font-weight:600;margin-bottom:.4rem;padding:0}
.checks{display:flex;flex-wrap:wrap;gap:.4rem 1.4rem;font-family:var(--sans);font-size:.95rem}
.checks label{display:inline-flex;align-items:center;gap:.45rem;font-weight:400;margin:0;font-size:.95rem;letter-spacing:0}
.checks.agree label{align-items:flex-start;font-size:.9rem;color:var(--dawn)}
.checks.agree input{margin-top:.3rem;flex:none}
input[type=checkbox],input[type=radio]{accent-color:var(--gold);width:1rem;height:1rem}
label.inline{display:flex;align-items:center;gap:.45rem;font-weight:400;font-size:.95rem}
.formfoot{display:flex;flex-wrap:wrap;gap:1rem 2rem;align-items:center}
.errors{border:1px solid var(--alert);padding:.9rem 1.1rem;font-family:var(--sans);font-size:.95rem;color:var(--alert)}
.errors p{margin:0 0 .3rem}
.errors p:last-child{margin:0}
.errors.inline{flex-basis:100%;padding:.5rem .8rem;margin:0}
.after{margin-top:1.4rem}
form.subscribe{display:flex;flex-wrap:wrap;gap:.7rem;max-width:44rem;margin-top:1rem}
form.subscribe input[type=email]{flex:1 1 16rem;width:auto}
form.stack{display:grid;gap:.8rem;justify-items:start;margin-top:1rem}
form.stack.narrow{max-width:24rem}
form.stack.narrow input{width:100%}

/* letters & protocols */
.letters{list-style:none;margin:0 0 1.4rem;padding:0;max-width:44rem}
.letters li{display:grid;grid-template-columns:9.5rem 1fr;gap:1rem;padding:.8rem 0;border-top:1px solid var(--rule);font-size:1rem}
.letters li:last-child{border-bottom:1px solid var(--rule)}
.letters .d{font-family:var(--mono);font-size:.85rem;color:var(--dawn);font-variant-numeric:tabular-nums}
@media (max-width:560px){.letters li{grid-template-columns:1fr;gap:.2rem}}
.protos{list-style:none;margin:1rem 0 0;padding:0;font-family:var(--sans);font-size:.95rem;max-width:44rem}
.protos li{padding:.6rem 0;border-top:1px solid var(--rule);display:grid;grid-template-columns:1fr auto;gap:1rem}
.protos li:last-child{border-bottom:1px solid var(--rule)}
.protos .d{font-family:var(--mono);font-size:.82rem;color:var(--dawn);white-space:nowrap}

/* foundation */
.found{display:grid;grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:1.2rem 2rem;font-family:var(--sans);font-size:.95rem}
.found div{border-top:1px solid var(--rule);padding-top:.7rem}
.found b{display:block;font-weight:600}
.found span{color:var(--dawn)}

/* single pages */
dl.entrydl{margin:1.6rem 0 2rem;display:grid;grid-template-columns:minmax(8rem,12rem) 1fr;gap:.2rem 1.4rem;border-top:1px solid var(--rule)}
dl.entrydl dt{font-family:var(--sans);font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--dawn);padding-top:.8rem}
dl.entrydl dd{margin:0;padding:.6rem 0 .6rem;border-bottom:1px solid var(--rule);white-space:pre-line;min-width:0;overflow-wrap:anywhere}
dl.entrydl dt{border-bottom:1px solid var(--rule)}
@media (max-width:560px){dl.entrydl{grid-template-columns:1fr}dl.entrydl dt{border-bottom:0;padding-top:.8rem}dl.entrydl dd{padding-top:0}}
.doc h2{font-size:1.4rem;margin-top:2rem}
.doc h3{font-size:1.05rem}
.doc blockquote{border-left:2px solid var(--gold);margin:1.4rem 0;padding-left:1.2rem;color:var(--dawn)}
.doc ul,.doc ol{padding-left:1.3rem}
.doc li{margin-bottom:.3rem}
.legal p,.legal li{font-size:1.02rem}
.legal ul{padding-left:1.3rem}

footer{border-top:1px solid var(--ink);padding-block:2rem calc(3rem + env(safe-area-inset-bottom,0px));font-family:var(--sans);font-size:.85rem;color:var(--dawn)}
footer .row{display:flex;flex-wrap:wrap;gap:.6rem 2rem;justify-content:space-between}
footer ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.4rem 1.4rem}