/* Idle Facet — chart room. One shared stylesheet. No external requests. */

:root{
  --bg:#eef4f4;
  --text:#1c2e33;
  --accent:#2e7d74;
  --accent-2:#27476e;
  --card:#ffffff;
  --mono:"SF Mono", ui-monospace, Menlo, Consolas, monospace;
  --body:-apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  --serif:"Palatino Linotype", Georgia, serif;
  --col:680px;
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--body);
  font-size:17px;
  line-height:1.62;
}

.wrap{
  width:100%;
  max-width:var(--col);
  margin:0 auto;
  padding:0 20px;
}

a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
a:hover{color:var(--accent-2)}
a:focus-visible,button:focus-visible{
  outline:2px solid var(--accent-2);
  outline-offset:2px;
}

.skip{
  position:absolute;left:-9999px;top:0;
  background:var(--card);color:var(--accent-2);
  padding:8px 14px;border:1px solid var(--accent);z-index:50;
}
.skip:focus{left:0}

/* ---------- header ---------- */

.site-head{
  position:sticky;top:0;z-index:40;
  background:var(--card);
  border-bottom:1px solid var(--accent);
}
.head-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:56px;
}
.brand{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.09em;
  font-size:14px;
  color:var(--accent-2);
  text-decoration:none;
  border:1px solid var(--accent-2);
  border-radius:2px;
  padding:5px 9px;
}
.brand:hover{color:var(--accent-2);border-color:var(--accent)}

.menu-btn{
  display:none;
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.08em;
  font-size:12px;
  background:var(--card);
  color:var(--accent-2);
  border:1px solid var(--accent-2);
  border-radius:2px;
  padding:7px 11px;
  cursor:pointer;
}

.site-nav ul{
  list-style:none;margin:0;padding:0;
  display:flex;gap:18px;
}
.site-nav a{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.07em;
  font-size:12px;
  text-decoration:none;
  color:var(--accent);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.site-nav a:hover{border-bottom-color:var(--accent)}

@media (max-width:620px){
  .menu-btn{display:block}
  .site-nav{
    display:none;
    position:absolute;left:0;right:0;top:100%;
    background:var(--card);
    border-bottom:1px solid var(--accent);
  }
  .site-nav.open{display:block}
  .site-nav ul{flex-direction:column;gap:0;padding:6px 20px 14px}
  .site-nav li{border-top:1px solid rgba(46,125,116,.28)}
  .site-nav li:first-child{border-top:none}
  .site-nav a{display:block;padding:11px 0;font-size:13px}
  .head-inner{position:relative}
}

/* ---------- main column ---------- */

main{display:block;padding:26px 0 10px}

h1,h2,h3,h4{line-height:1.25;margin:0 0 12px}

h1{
  font-family:var(--serif);
  font-size:30px;
  font-weight:600;
  color:var(--accent-2);
  letter-spacing:-.005em;
}
h2{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.06em;
  font-size:15px;
  color:var(--accent-2);
}
h3{
  font-size:18px;
  font-weight:600;
  color:var(--accent-2);
}
h4{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.06em;
  font-size:12.5px;
  color:var(--accent);
}

p{margin:0 0 15px}

/* ---------- the sheet (hero) ---------- */

.sheet{
  position:relative;
  background:var(--card);
  border:1px solid var(--accent);
  border-radius:2px;
  padding:34px 26px 26px;
  margin:0 0 26px;
  background-image:
    linear-gradient(to right, rgba(39,71,110,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(39,71,110,.06) 1px, transparent 1px);
  background-size:40px 40px;
}
.sheet-label{
  position:absolute;
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.11em;
  font-size:10px;
  color:var(--accent-2);
  opacity:.75;
}
.sheet-label.tl{top:8px;left:12px}
.sheet-label.tr{top:8px;right:12px}
.sheet-label.bl{bottom:8px;left:12px}
.sheet-label.br{bottom:8px;right:12px}

.sheet h1{margin-bottom:14px}
.sheet p:last-child{margin-bottom:0}

/* depth-sounding column, homepage hero only */
.hero-grid{display:flex;gap:18px;align-items:flex-start}
.soundings{flex:0 0 26px;margin-top:4px}
.hero-body{flex:1 1 auto;min-width:0}
@media (max-width:520px){
  .soundings{display:none}
}

/* ---------- section rules ---------- */

.sec{
  border-top:1px solid var(--accent);
  padding:20px 0 4px;
}
.sec > h2{
  display:flex;align-items:baseline;gap:10px;
}
.secno{
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--accent);
  flex:0 0 auto;
}

/* ---------- cards ---------- */

.card{
  position:relative;
  background:var(--card);
  border:1px solid var(--accent);
  border-radius:2px;
  padding:22px 20px;
  margin:0 0 22px;
}
.card.labelled{padding-top:30px}
.card > :last-child{margin-bottom:0}

.callout{
  background:var(--card);
  border:1px solid var(--accent-2);
  border-left:4px solid var(--accent-2);
  border-radius:2px;
  padding:18px 18px;
  margin:0 0 22px;
}
.callout > :last-child{margin-bottom:0}
.callout h3{font-family:var(--mono);text-transform:uppercase;font-size:13px;letter-spacing:.06em}

/* ---------- disclosure ---------- */

.disclosure{
  background:var(--card);
  border:1px solid var(--accent);
  border-top:3px solid var(--accent);
  border-radius:2px;
  padding:18px;
  margin:0 0 24px;
  font-size:16px;
}
.disclosure > :last-child{margin-bottom:0}
.disclosure .dl-head{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.08em;
  font-size:11.5px;
  color:var(--accent-2);
  margin-bottom:8px;
}

.linknote{
  font-size:15px;
  border-left:2px solid var(--accent);
  padding-left:12px;
  margin:0 0 20px;
}

/* ---------- lists ---------- */

ul.sq{list-style:none;margin:0 0 16px;padding:0}
ul.sq li{position:relative;padding-left:18px;margin:0 0 9px}
ul.sq li::before{
  content:"";
  position:absolute;left:0;top:.56em;
  width:6px;height:6px;
  background:var(--accent);
}

ol.steps{margin:0 0 16px;padding-left:22px}
ol.steps li{margin:0 0 9px}

ol.proc{margin:0 0 16px;padding-left:22px}
ol.proc li{margin:0 0 12px}

dl.gloss{margin:0 0 16px}
dl.gloss dt{
  font-family:var(--mono);
  text-transform:uppercase;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--accent-2);
  margin-top:12px;
}
dl.gloss dd{margin:4px 0 0}

/* ---------- sounding checklist ---------- */

.sounding{
  border:1px solid var(--accent-2);
  border-radius:2px;
  background:var(--card);
  margin:0 0 24px;
  padding:0;
}
.sounding-head{
  display:flex;justify-content:space-between;gap:12px;
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.1em;
  font-size:11px;
  color:var(--accent-2);
  padding:9px 14px;
  border-bottom:1px solid var(--accent-2);
}
ol.sounding-rows{
  list-style:none;
  margin:0;padding:0;
  counter-reset:snd;
}
ol.sounding-rows li{
  counter-increment:snd;
  display:grid;
  grid-template-columns:54px 1fr;
  gap:12px;
  align-items:start;
  padding:11px 14px;
  border-top:1px solid rgba(39,71,110,.3);
  font-size:16px;
}
ol.sounding-rows li:first-child{border-top:none}
ol.sounding-rows li::before{
  content:counter(snd,decimal-leading-zero);
  font-family:var(--mono);
  font-size:12px;
  color:var(--accent);
  letter-spacing:.06em;
  padding-top:3px;
}
ol.sounding-rows li .box{
  display:inline-block;
  width:11px;height:11px;
  border:1px solid var(--accent-2);
  margin-right:9px;
  vertical-align:baseline;
  position:relative;top:1px;
}

.print-btn{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.08em;
  font-size:11.5px;
  background:var(--card);
  color:var(--accent-2);
  border:1px solid var(--accent-2);
  border-radius:2px;
  padding:9px 14px;
  cursor:pointer;
  margin:0 0 24px;
}
.print-btn:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- tables ---------- */

table.plain{
  width:100%;
  border-collapse:collapse;
  margin:0 0 20px;
  font-size:15.5px;
}
table.plain th,table.plain td{
  text-align:left;
  vertical-align:top;
  padding:9px 10px;
  border-bottom:1px solid rgba(39,71,110,.3);
}
table.plain th{
  font-family:var(--mono);
  text-transform:uppercase;
  font-size:11px;
  letter-spacing:.07em;
  color:var(--accent-2);
}

/* ---------- step nav ---------- */

.stepmark{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.11em;
  font-size:11px;
  color:var(--accent-2);
  border:1px solid var(--accent-2);
  border-radius:2px;
  padding:4px 8px;
  display:inline-block;
  margin:0 0 14px;
}

.contents{
  border:1px solid var(--accent);
  border-radius:2px;
  background:var(--card);
  padding:16px 18px;
  margin:0 0 24px;
}
.contents h2{font-size:12px;margin-bottom:9px}
.contents ul{list-style:none;margin:0;padding:0}
.contents li{margin:0 0 7px;padding-left:16px;position:relative}
.contents li::before{
  content:"";position:absolute;left:0;top:.56em;
  width:6px;height:6px;background:var(--accent);
}

.stepnav{
  border-top:1px solid var(--accent);
  display:flex;justify-content:space-between;gap:16px;
  padding:16px 0 4px;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.05em;
}
.stepnav span{color:var(--accent-2);opacity:.65}

/* ---------- footer ---------- */

.site-foot{
  border-top:1px solid var(--accent);
  background:var(--card);
  margin-top:34px;
  padding:26px 0 34px;
  font-size:14.5px;
}
.site-foot .pub{font-style:normal;margin:0 0 12px}
.site-foot .pub span{display:block}
.site-foot .pub .fname{
  font-family:var(--mono);
  text-transform:uppercase;
  letter-spacing:.09em;
  font-size:12px;
  color:var(--accent-2);
  margin-bottom:4px;
}
.site-foot .flinks{margin:0 0 12px}
.site-foot .flinks a{white-space:nowrap}
.site-foot .tm{margin:0 0 10px}
.site-foot .rev{
  font-family:var(--mono);
  font-size:11.5px;
  letter-spacing:.05em;
  color:var(--accent-2);
  margin:0;
}

/* ---------- print ---------- */

@media print{
  :root{--bg:#fff}
  body{background:#fff;color:#000;font-size:11.5pt}
  .site-head,.menu-btn,.site-nav,.print-btn,.stepnav,.skip{display:none !important}
  .sheet{background-image:none;border:1px solid #000}
  .card,.sounding,.callout,.contents,.disclosure{
    border:1px solid #000;
    break-inside:avoid;
    page-break-inside:avoid;
  }
  ol.sounding-rows li{border-top:1px solid #666}
  ol.sounding-rows li .box{border:1px solid #000;width:12px;height:12px}
  a{color:#000;text-decoration:underline}
  .site-foot{border-top:1px solid #000;background:#fff}
  h1,h2,h3{color:#000}
}