/* ==========================================================================
   CACHECON — shared stylesheet
   One file, deliberately. Every other site on this box repeats its :root
   block in each page, which makes a re-theme an N-file edit. Change a color
   here and it changes everywhere.
   Fonts are self-hosted on purpose: a privacy conference does not hand its
   visitors' IP addresses to a font CDN.
   ========================================================================== */

/* --- fonts ---------------------------------------------------------------- */
@font-face{font-family:'Big Shoulders Display';src:url('../fonts/big-shoulders-display-700.woff2') format('woff2');
  font-weight:400 900;font-style:normal;font-display:swap}
@font-face{font-family:'Staatliches';src:url('../fonts/staatliches-400.woff2') format('woff2');
  font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Karla';src:url('../fonts/karla-400.woff2') format('woff2');
  font-weight:200 800;font-style:normal;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url('../fonts/ibm-plex-mono-400.woff2') format('woff2');
  font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'IBM Plex Mono';src:url('../fonts/ibm-plex-mono-600.woff2') format('woff2');
  font-weight:600;font-style:normal;font-display:swap}

/* --- tokens --------------------------------------------------------------- */
:root{
  /* paper and ink */
  --paper:#f4ead6; --paper-2:#ece0c7; --paper-3:#e2d3b4; --paper-edge:#d6c49f;
  --ink:#1b1710; --ink-2:#463c2e; --ink-3:#6b5c46;
  /* the Poudre canyon at last light */
  --pine:#1f3d34; --pine-2:#2c5648; --pine-3:#16302a;
  --rust:#a8482c; --rust-dk:#8a3520; --rust-deep:#7e3320;
  --gold:#b07a14; --gold-lt:#e0a32c; --gold-pale:#f0c661;
  --river:#2a6e73; --river-lt:#55a0a0; --sage:#7e9478;
  --dusk:#2b3347;
  /* type */
  --display:'Big Shoulders Display',Impact,'Arial Narrow',sans-serif;
  --label:'Staatliches','Arial Narrow',sans-serif;
  --body:'Karla',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,'SF Mono',Menlo,monospace;
  /* metrics */
  --gutter:clamp(1.1rem,4vw,3rem);
  --wide:1220px; --mid:960px; --read:70ch;
  --rule:2px solid var(--ink);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
body{
  margin:0;background:var(--paper);color:var(--ink-2);
  font-family:var(--body);font-size:clamp(1rem,.96rem + .2vw,1.09rem);line-height:1.66;
  -webkit-font-smoothing:antialiased;
  /* the faintest possible offset-print grain */
  background-image:radial-gradient(var(--paper-edge) .5px,transparent .5px);
  background-size:3px 3px;
}
img,svg{max-width:100%}
a{color:var(--rust-deep);text-underline-offset:.18em;text-decoration-thickness:1.5px}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--rust);outline-offset:3px}

.wrap{max-width:var(--wide);margin-inline:auto;padding-inline:var(--gutter)}
.wrap--mid{max-width:var(--mid)}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--paper);
  padding:.7rem 1.1rem;z-index:99;font-family:var(--label);letter-spacing:.06em}
.skip:focus{left:.5rem;top:.5rem}

/* --- type ----------------------------------------------------------------- */
h1,h2,h3,h4{font-family:var(--display);font-weight:800;color:var(--ink);
  line-height:.92;letter-spacing:.005em;text-transform:uppercase;margin:0}
h2{font-size:clamp(2.1rem,1.3rem + 3.6vw,4rem)}
h3{font-size:clamp(1.35rem,1.1rem + 1.1vw,1.9rem);line-height:1}
h4{font-size:1.06rem;letter-spacing:.06em;font-family:var(--label);font-weight:400}
p{margin:0 0 1.1em}
.lede{font-size:clamp(1.12rem,1rem + .7vw,1.42rem);line-height:1.52;color:var(--ink);max-width:46ch}
.read{max-width:var(--read)}
.eyebrow{font-family:var(--label);font-size:clamp(.82rem,.78rem + .18vw,.96rem);
  letter-spacing:.2em;color:var(--rust-deep);text-transform:uppercase;margin:0 0 .85rem;display:block}
.eyebrow--pale{color:var(--gold-lt)}
.mono{font-family:var(--mono);font-size:.86em;letter-spacing:-.01em}
.small{font-size:.9rem;color:var(--ink-3)}
.no{color:var(--rust-deep);font-weight:700}

/* --- the brown sign bar --------------------------------------------------- */
.signbar{background:var(--pine);color:var(--paper);border-bottom:4px solid var(--gold-lt);
  position:sticky;top:0;z-index:40}
.signbar__in{display:flex;align-items:center;gap:1rem;min-height:62px;
  max-width:var(--wide);margin-inline:auto;padding-inline:var(--gutter)}
.signbar a{color:var(--paper);text-decoration:none}
.brand{display:flex;align-items:center;gap:.6rem;font-family:var(--display);
  font-weight:800;font-size:1.5rem;letter-spacing:.02em;text-transform:uppercase;flex:0 0 auto}
.brand svg{width:30px;height:36px;display:block}
.brand__mark{background:none;border:0;padding:0;margin:0;line-height:0;cursor:pointer;
  color:inherit;border-radius:3px}
.brand__mark svg{transition:transform .18s ease}
.brand__mark:hover svg{transform:translateY(-2px) scale(1.07)}
.brand__mark:active svg{transform:translateY(0) scale(.98)}

/* the emblem, opened out */
.emblem-modal{border:0;padding:0;background:transparent;width:min(92vw,460px);
  max-height:92vh;overflow:visible}
.emblem-modal::backdrop{background:rgba(20,16,14,.88)}
.emblem-modal__in{position:relative;background:var(--paper);border:3px solid var(--ink);
  box-shadow:0 26px 60px -24px rgba(0,0,0,.7);
  padding:clamp(1.6rem,5vw,2.8rem) clamp(1.2rem,4vw,2.4rem) clamp(1.3rem,3.5vw,2rem);
  text-align:center}
.emblem-modal svg{width:min(55vw,236px);height:auto;display:block;margin:0 auto}
.emblem-modal__cap{font-family:var(--display);font-weight:900;text-transform:uppercase;
  font-size:clamp(1.8rem,1rem + 3vw,2.6rem);line-height:1;color:var(--ink);margin:1.1rem 0 .4rem}
.emblem-modal__sub{font-family:var(--mono);font-size:.78rem;letter-spacing:.02em;
  color:var(--ink-3);margin:0}
.emblem-modal__x{position:absolute;top:.2rem;right:.5rem;background:none;border:0;
  font:400 1.9rem/1 var(--body);color:var(--ink-3);cursor:pointer;padding:.2rem .4rem}
.emblem-modal__x:hover{color:var(--rust-deep)}
@media (prefers-reduced-motion:no-preference){
  .emblem-modal[open] .emblem-modal__in{animation:mark-in .22s ease-out}
  @keyframes mark-in{from{transform:scale(.92);opacity:0}to{transform:scale(1);opacity:1}}
}
.signbar nav{margin-left:auto;display:flex;flex-wrap:wrap;gap:.2rem}
.signbar nav a{font-family:var(--label);letter-spacing:.11em;font-size:.94rem;
  padding:.45rem .7rem;border-bottom:3px solid transparent}
.signbar nav a:hover{border-bottom-color:var(--gold-lt);background:rgba(255,255,255,.06)}
.signbar nav a[aria-current="page"]{border-bottom-color:var(--rust)}
@media (max-width:720px){
  .signbar{position:static}
  .signbar__in{flex-wrap:wrap;padding-block:.6rem;gap:.4rem}
  .signbar nav{margin-left:0;width:100%}
  .signbar nav a{padding:.4rem .55rem;font-size:.86rem}
}

/* --- the poster plate ----------------------------------------------------- */
.plate{max-width:var(--wide);margin:clamp(1.2rem,4vw,3rem) auto;padding-inline:var(--gutter)}
.plate__in{background:var(--dusk);border:1px solid var(--paper-edge);
  box-shadow:0 2px 0 var(--paper-edge),0 18px 40px -22px rgba(27,23,16,.55)}
.plate__art{position:relative;line-height:0;overflow:hidden}
.poster{display:block;width:100%;height:auto;max-height:min(70vh,660px)}
@media (max-width:700px){.poster{aspect-ratio:4/3;max-height:none}}
.plate__band{background:var(--paper);padding:clamp(1.3rem,3.4vw,2.6rem) clamp(1.1rem,3vw,2.4rem) clamp(1.5rem,3.4vw,2.4rem);
  border-top:5px solid var(--ink)}
.wordmark{font-size:clamp(3.6rem,1rem + 14vw,11rem);font-weight:900;line-height:.78;
  letter-spacing:-.015em;margin:0 0 .1em}
.wordmark span{color:var(--rust-deep)}
.plate__rule{display:flex;align-items:baseline;gap:1rem;flex-wrap:wrap;
  border-top:var(--rule);padding-top:.7rem;margin-bottom:1.3rem}
.plate__rule b{font-family:var(--label);font-weight:400;letter-spacing:.14em;
  font-size:clamp(.95rem,.85rem + .5vw,1.3rem);color:var(--ink)}
.plate__rule span{font-family:var(--mono);font-size:.82rem;color:var(--ink-3);margin-left:auto}
.slogan{font-family:var(--display);font-weight:900;text-transform:uppercase;
  font-size:clamp(1.5rem,.7rem + 3.2vw,3rem);line-height:.94;color:var(--rust-deep);
  margin:0 0 .5em;max-width:18ch}
.plate__cols{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);
  gap:clamp(1.2rem,3vw,2.6rem);align-items:start}
@media (max-width:760px){.plate__cols{grid-template-columns:1fr}}

/* --- chips, buttons ------------------------------------------------------- */
.chips{display:flex;flex-wrap:wrap;gap:.45rem;list-style:none;margin:0 0 1.3rem;padding:0}
.chips li{font-family:var(--mono);font-size:.76rem;letter-spacing:.02em;text-transform:uppercase;
  border:1.5px solid var(--ink);padding:.28rem .55rem;color:var(--ink)}
.chips li.on{background:var(--pine);border-color:var(--pine);color:var(--paper)}
.chips li.off{border-color:var(--rust-deep);color:var(--rust-deep)}
.btns{display:flex;flex-wrap:wrap;gap:.7rem}
.btn{display:inline-block;font-family:var(--label);letter-spacing:.1em;font-size:1.02rem;
  padding:.72rem 1.35rem;border:2px solid var(--ink);background:var(--ink);color:var(--paper);
  text-decoration:none;transition:transform .12s ease,background .12s ease}
.btn:hover{background:var(--rust-deep);border-color:var(--rust-deep);color:var(--paper);transform:translateY(-2px)}
.btn--ghost{background:transparent;color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn--pale{background:var(--gold-lt);border-color:var(--gold-lt);color:var(--ink)}
.btn--pale:hover{background:var(--paper);border-color:var(--paper);color:var(--ink)}

/* --- sections ------------------------------------------------------------- */
.band{padding-block:clamp(2.8rem,7vw,5.5rem)}
.band--dark{background:var(--pine);color:#dfe6dd}
.band--dark h2,.band--dark h3{color:var(--paper)}
.band--dark a{color:var(--gold-pale)}
.band--rust{background:var(--rust-deep);color:#f6e3d8}
.band--rust h2,.band--rust h3{color:var(--paper)}
.band--paper2{background:var(--paper-2)}
.band__head{border-top:5px solid var(--ink);padding-top:.9rem;margin-bottom:clamp(1.6rem,4vw,2.8rem)}
.band--dark .band__head,.band--rust .band__head{border-top-color:var(--gold-lt)}
.band__head p{max-width:52ch;margin-top:.7rem;margin-bottom:0}

/* --- field-guide plates --------------------------------------------------- */
.guide{display:grid;grid-template-columns:repeat(auto-fit,minmax(178px,1fr));gap:clamp(.9rem,1.8vw,1.4rem)}
.spec{border:1.5px solid var(--ink);background:var(--paper);padding:1rem 1rem 1.15rem;
  display:flex;flex-direction:column}
.spec figure{margin:0}
.spec svg{display:block;width:100%;height:auto;background:var(--paper-2);
  border-bottom:1.5px solid var(--ink);margin-bottom:.8rem}
.spec__bin{font-family:var(--mono);font-size:.74rem;font-style:italic;color:var(--ink-3);
  letter-spacing:-.01em;display:block;margin-bottom:.15rem}
.spec h3{margin-bottom:.45rem}
.spec p{font-size:.94rem;margin:0}
.spec__no{display:block;font-family:var(--mono);font-size:.7rem;color:var(--rust-deep);
  border-top:1px dashed var(--paper-edge);margin-top:auto;padding-top:.5rem}
.spec p{margin-bottom:.8rem}

/* --- the regulations board ------------------------------------------------ */
.regs{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:clamp(1.4rem,4vw,3rem)}
.regs h3{font-family:var(--label);font-weight:400;font-size:1.22rem;letter-spacing:.14em;
  border-bottom:2px solid var(--gold-lt);padding-bottom:.5rem;margin-bottom:1rem}
.regs ul{list-style:none;margin:0;padding:0}
.regs li{display:grid;grid-template-columns:2.4rem 1fr;gap:.6rem;padding:.7rem 0;
  border-bottom:1px solid rgba(240,231,210,.16)}
.regs li:last-child{border-bottom:0}
.regs b{font-family:var(--display);font-weight:800;font-size:1.18rem;letter-spacing:.02em;
  text-transform:uppercase;color:var(--paper);display:block}
.regs span{font-family:var(--mono);font-size:1.25rem;line-height:1;color:var(--gold-lt);text-align:center}
.regs .x{color:#e08a72}
.regs p{font-size:.93rem;margin:.2rem 0 0;color:#c7d2c6}

/* --- numbered principles (leave no trace) --------------------------------- */
.lnt{counter-reset:lnt;display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:clamp(1.2rem,3vw,2.2rem);list-style:none;margin:0;padding:0}
.lnt li{counter-increment:lnt;border-top:2px solid var(--ink);padding-top:.85rem}
.lnt li::before{content:counter(lnt,decimal-leading-zero);font-family:var(--display);font-weight:900;
  font-size:2.4rem;line-height:.8;color:var(--rust);display:block;margin-bottom:.35rem}
.lnt h3{font-size:1.16rem;margin-bottom:.4rem}
.lnt .orig{font-family:var(--mono);font-size:.72rem;color:var(--ink-3);display:block;margin-bottom:.5rem}
.lnt p{font-size:.95rem;margin:0}
@media (min-width:1080px){
  .lnt{grid-template-columns:repeat(4,1fr)}
  .lnt li:last-child{grid-column:span 2}
}

/* --- trail signs (tracks) ------------------------------------------------- */
.trails{display:grid;gap:1rem}
.trail{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:clamp(.8rem,2vw,1.6rem);
  align-items:center;background:var(--paper);border:1.5px solid var(--ink);
  border-left:9px solid var(--pine);padding:1rem clamp(1rem,2.4vw,1.5rem)}
.trail__mark{font-family:var(--mono);font-size:1.5rem;line-height:1;color:var(--pine);width:1.6rem;text-align:center}
.trail h3{margin-bottom:.25rem}
.trail p{margin:0;font-size:.95rem}
.trail__lvl{font-family:var(--mono);font-size:.72rem;text-align:right;color:var(--ink-3);
  white-space:nowrap;letter-spacing:-.01em}
.trail__lvl b{display:block;font-family:var(--label);font-weight:400;font-size:1rem;
  letter-spacing:.1em;color:var(--ink)}
@media (max-width:640px){
  .trail{grid-template-columns:auto minmax(0,1fr);row-gap:.6rem}
  .trail__lvl{grid-column:1/-1;text-align:left}
}

/* --- generic columns / cards ---------------------------------------------- */
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:clamp(1.2rem,3vw,2.4rem)}
.card{border-top:2px solid var(--ink)}
.card h3{margin:.8rem 0 .45rem}
.card p{font-size:.95rem;margin:0}
.card p+p{margin-top:.75em}
.band--dark .card{border-top-color:var(--gold-lt)}

/* --- pull quote ----------------------------------------------------------- */
.pull{border-left:6px solid var(--rust);padding-left:clamp(1rem,3vw,2rem);margin:2.2rem 0;
  font-family:var(--display);font-weight:700;text-transform:none;
  font-size:clamp(1.3rem,.9rem + 1.8vw,2.1rem);line-height:1.12;color:var(--ink)}
.band--dark .pull{color:var(--paper);border-left-color:var(--gold-lt)}
.pull__tag{display:block;margin-top:.5rem;font-family:var(--mono);font-weight:400;
  font-size:.46em;letter-spacing:-.01em;color:var(--ink-3);text-transform:none}
.band--dark .pull__tag{color:var(--gold-pale)}

/* --- long-form article ---------------------------------------------------- */
.article{max-width:var(--read);margin-inline:auto}
.article h2{margin-top:2.4rem;margin-bottom:.8rem;font-size:clamp(1.7rem,1.2rem + 2vw,2.6rem)}
.article h2:first-child{margin-top:0}
.article p{margin-bottom:1.25em}
.article ul,.article ol{margin:0 0 1.4em;padding-left:1.3em}
.article li{margin-bottom:.5em}
.article hr{border:0;border-top:var(--rule);margin:2.6rem 0}
.dropcap::first-letter{font-family:var(--display);font-weight:900;float:left;font-size:4.2em;
  line-height:.74;padding:.04em .1em 0 0;color:var(--rust-deep)}

/* --- definition rows (CFP) ------------------------------------------------ */
.rows{border-top:var(--rule);margin:0}
.rows>div{display:grid;grid-template-columns:minmax(0,13rem) minmax(0,1fr);gap:.4rem 1.6rem;
  border-bottom:1px solid var(--paper-edge);padding:1rem 0}
.rows dt{font-family:var(--label);letter-spacing:.1em;color:var(--ink);font-size:1.02rem}
.rows dd{margin:0;font-size:.97rem}
@media (max-width:620px){.rows>div{grid-template-columns:1fr}}

/* --- footer --------------------------------------------------------------- */
.foot{background:var(--ink);color:#cfc4ad;padding-block:clamp(2.4rem,5vw,3.6rem);font-size:.93rem}
.foot h4{color:var(--paper);margin-bottom:.7rem}
.foot a{color:var(--gold-pale)}
.foot__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:2rem;margin-bottom:2.2rem}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin-bottom:.35rem}
.foot__base{border-top:1px solid #3a3225;padding-top:1.3rem;display:flex;flex-wrap:wrap;
  gap:1rem;align-items:center;justify-content:space-between}
.foot__base p{margin:0;font-family:var(--mono);font-size:.78rem;color:#9b8f77}

/* --- the reveal control --------------------------------------------------- */
.reveal-btn{font-family:var(--mono);font-size:.8rem;letter-spacing:.02em;background:transparent;
  color:var(--gold-pale);border:1.5px dashed currentColor;padding:.5rem .85rem;cursor:pointer}
.reveal-btn:hover{background:rgba(240,198,97,.12)}
.reveal-btn kbd{font:inherit;opacity:.6}
body.reveal svg.poster .ht{color:var(--gold-pale)}
body.reveal svg.poster #reveal-marks{opacity:1}
svg.poster .ht{transition:color .45s ease}

/* anchor targets have to clear the sticky sign bar */
[id]{scroll-margin-top:80px}
@media (max-width:720px){[id]{scroll-margin-top:12px}}

/* --- utilities -----------------------------------------------------------
   These exist because the site ships a strict CSP (style-src 'self'), so there
   are no inline style attributes anywhere. Anything positional lives here.
   -------------------------------------------------------------------------- */
.mt-s{margin-top:.9rem}
.mt{margin-top:1.4rem}
.mt-m{margin-top:1.6rem}
.mt-l{margin-top:2.4rem}
.mb-s{margin-bottom:.7rem}
h2.sub{font-size:clamp(1.6rem,1.2rem + 1.4vw,2.2rem)}
.band--dark .lede,.band--rust .lede{color:#dfe6dd}
.band--dark .chips li{border-color:var(--gold-pale);color:var(--gold-pale)}
.band--dark .chips li.on{background:var(--gold-lt);border-color:var(--gold-lt);color:var(--ink)}
.sendblock{max-width:var(--mid);margin:3rem auto 0}

/* --- misc ----------------------------------------------------------------- */
/* the one outbound link on the site, marked as such */
.ext::after{content:"\2197";font-size:.8em;vertical-align:.35em;margin-left:.12em;
  font-family:var(--mono);text-decoration:none;display:inline-block}

.note{font-family:var(--mono);font-size:.82rem;background:var(--paper-3);border-left:4px solid var(--gold);
  padding:.85rem 1rem;color:var(--ink-2)}
.band--dark .note{background:rgba(0,0,0,.22);border-left-color:var(--gold-lt);color:#dfe6dd}
.tba{font-family:var(--mono);font-size:.72em;letter-spacing:.06em;border:1px solid currentColor;
  padding:.05em .38em;display:inline-block;line-height:1.25;vertical-align:baseline;opacity:.75;
  white-space:nowrap}

/* --- the inlined poster (rules lifted out of the SVG, for the CSP) --------- */
svg.poster #reveal-marks{opacity:0;transition:opacity .35s ease;pointer-events:none}
svg.poster #cache{cursor:pointer}
svg.poster .mark-label{font-family:var(--mono);font-size:17px}