/* AIRE 2026 — Direction C, "The Room".
   Layout: single left-aligned editorial column, hairline rules between sections,
   uppercase eyebrow labels, one Signal accent per page. Dark ground throughout. */

:root{
  --ink:#0E1613;
  --signal:#C8F04A;
  --bone:#EFECE3;
  --surface:#16211D;
  --slate:#8A968F;
  --rule:#263430;
  --display:"Space Grotesk",Arial,Helvetica,sans-serif;
  --body:"Newsreader",Georgia,"Times New Roman",serif;
  color-scheme:dark;
}

*{box-sizing:border-box}
/* A class that sets `display` beats the UA's [hidden] rule, which silently
   un-hides anything hidden. This must win. */
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink);
  color:var(--bone);
  font-family:var(--body);
  font-weight:300;
  font-size:17px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}

.wrap{max-width:62rem;margin:0 auto;padding-inline:24px}
@media(max-width:600px){ .wrap{padding-inline:16px} }

/* ---------- type ---------- */
.label{
  display:block;
  font-family:var(--display);font-weight:500;
  font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--slate);
}
h1,h2,h3,h4{font-family:var(--display);font-weight:700;margin:0;text-wrap:balance}
h1{font-size:clamp(30px,5.2vw,52px);line-height:1.1;letter-spacing:-.03em}
h2{font-size:clamp(23px,3.1vw,33px);line-height:1.16;letter-spacing:-.028em}
h3{font-size:19px;line-height:1.3;letter-spacing:-.02em}
h4{font-size:16.5px;line-height:1.3;letter-spacing:-.015em}
p{margin:0}
.lede{font-size:clamp(18px,2.1vw,22px);line-height:1.55}
.quiet{color:var(--slate)}
.tag{font-style:italic;color:var(--slate)}
.measure{max-width:34rem}
.measure-wide{max-width:44rem}
a{color:var(--bone)}
a.ul{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
a.ul:hover{color:var(--signal)}
:focus-visible{outline:2px solid var(--signal);outline-offset:3px}
hr{border:0;border-top:1px solid var(--rule);margin:0}
strong{font-weight:400}

/* ---------- masthead ---------- */
.mast{border-bottom:1px solid var(--rule)}
.mast .wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px 28px;flex-wrap:wrap;padding-block:18px;
}
.mast a.home{display:block;line-height:0;flex:0 0 auto}
.mast img{width:148px;height:auto;display:block}
nav ul{display:flex;flex-wrap:wrap;gap:4px 22px;list-style:none;margin:0;padding:0}
nav a{
  font-family:var(--display);font-weight:500;font-size:11px;
  letter-spacing:.13em;text-transform:uppercase;color:var(--slate);
  text-decoration:none;padding-block:4px;display:inline-block;
}
nav a:hover{color:var(--bone)}
nav a[aria-current="page"]{color:var(--bone)}

/* The one Signal element on every page: top-right, the end of the Z's first stroke. */
.navcta{
  flex:0 0 auto;
  font-family:var(--display);font-weight:700;font-size:12px;
  letter-spacing:.04em;text-transform:uppercase;
  background:var(--signal);color:var(--ink);text-decoration:none;
  padding:11px 18px;white-space:nowrap;
}
.navcta:hover{background:#d4f663;color:var(--ink)}
@media(max-width:600px){ .navcta{width:100%;text-align:center} }

/* ---------- sections ---------- */
section{padding-block:clamp(34px,5vw,56px)}
section.tight{padding-block:clamp(26px,3.4vw,38px)}
.stack{display:flex;flex-direction:column;gap:16px}
.stack-sm{display:flex;flex-direction:column;gap:9px}
.stack-lg{display:flex;flex-direction:column;gap:26px}
.head{display:flex;flex-direction:column;gap:11px;margin-bottom:22px}

/* ---------- hero ---------- */
.hero{padding-block:clamp(34px,5vw,60px) clamp(28px,4vw,44px)}
.hero img.lockup{width:min(430px,88%);height:auto;display:block;margin:14px 0 30px -4px}
.when{font-size:clamp(17px,2vw,20px);line-height:1.5}
.when .dot{color:var(--slate);padding-inline:6px}

/* ---------- fact row ---------- */
.facts{display:flex;flex-wrap:wrap;gap:0}
.fact{padding-right:34px;margin-right:34px;border-right:1px solid var(--rule);min-width:0;padding-block:4px}
.fact:last-child{border-right:0;padding-right:0;margin-right:0}
.fact .n{font-family:var(--display);font-weight:700;font-size:clamp(30px,4.4vw,42px);
  letter-spacing:-.03em;line-height:1;font-variant-numeric:tabular-nums}
.fact .n.sm{font-size:clamp(19px,2.4vw,23px);letter-spacing:-.02em;line-height:1.14}
.fact .l{font-family:var(--display);font-weight:500;font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--slate);margin-top:7px}
@media(max-width:600px){
  .facts{gap:20px 0}
  .fact{padding-right:22px;margin-right:22px}
}

/* ---------- seat grid device ---------- */
.seatgrid{display:grid;grid-template-columns:repeat(10,1fr);gap:5px;max-width:330px;margin-block:4px}
.seatgrid i{display:block;aspect-ratio:1;border:1px solid var(--rule)}
.gridnote{font-family:var(--display);font-weight:500;font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--slate)}

/* ---------- panels / cards ---------- */
.cols{display:grid;gap:1px;background:var(--rule);border-block:1px solid var(--rule)}
.cols.two{grid-template-columns:repeat(auto-fit,minmax(min(100%,17rem),1fr))}
.cols.three{grid-template-columns:repeat(auto-fit,minmax(min(100%,14rem),1fr))}
.cols > div{background:var(--ink);padding:24px 26px 26px;min-width:0;display:flex;flex-direction:column;gap:9px}
.cols > div > p{font-size:15.5px}

.rows{display:flex;flex-direction:column}
.row{display:grid;grid-template-columns:5.5rem 1fr;gap:4px 26px;
  padding-block:17px;border-top:1px solid var(--rule);min-width:0}
.row:last-child{border-bottom:1px solid var(--rule)}
.row .t{font-family:var(--display);font-weight:700;font-size:15px;letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;padding-top:2px}
.row .b{min-width:0;display:flex;flex-direction:column;gap:5px}
.row .b p{font-size:15.5px;color:var(--slate)}
@media(max-width:560px){ .row{grid-template-columns:1fr;gap:6px} }

/* speakers */
.people{display:grid;gap:1px;background:var(--rule);
  grid-template-columns:repeat(auto-fit,minmax(min(100%,20rem),1fr));
  border-block:1px solid var(--rule)}
.person{background:var(--ink);display:flex;flex-direction:column;min-width:0;padding-bottom:26px}
.person .ph{display:block;width:100%;height:auto;aspect-ratio:1;object-fit:cover;object-position:50% 18%;
  background:var(--surface);filter:grayscale(1)}
.person .noph{display:flex;align-items:center;justify-content:center;width:100%;aspect-ratio:1;
  background:var(--surface);font-family:var(--display);font-weight:700;font-size:46px;
  letter-spacing:-.03em;color:#2F3C37;user-select:none}
.person .pin{padding:22px 24px 0;display:flex;flex-direction:column;gap:7px;min-width:0}
.person .ti{font-size:15px;color:var(--slate);line-height:1.4}
.person p.on{font-size:15.5px;margin-top:6px}
.person .st{font-family:var(--display);font-weight:500;font-size:9.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--slate);border:1px solid var(--rule);
  padding:4px 8px;align-self:flex-start;margin-bottom:3px}

/* sponsor tiers */
.tier{display:grid;grid-template-columns:1fr auto;gap:8px 24px;align-items:baseline;
  padding-block:20px;border-top:1px solid var(--rule)}
.tier:last-of-type{border-bottom:1px solid var(--rule)}
.tier .amt{font-family:var(--display);font-weight:700;font-size:21px;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;text-align:right}
.tier .avail{font-family:var(--display);font-weight:500;font-size:9.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--slate);margin-top:5px}
.tier .d{grid-column:1/-1;max-width:40rem;font-size:15.5px;color:var(--slate)}
@media(max-width:480px){ .tier{grid-template-columns:1fr} .tier .amt{text-align:left} }

/* lists */
ul.marks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
ul.marks li{display:grid;grid-template-columns:1.1rem 1fr;gap:11px;font-size:16px;min-width:0}
ul.marks li::before{content:"—";color:var(--slate)}

/* FAQ */
.qa{border-top:1px solid var(--rule);padding-block:21px;display:flex;flex-direction:column;gap:9px}
.qa:last-of-type{border-bottom:1px solid var(--rule)}
.qa p{font-size:16px;max-width:40rem}

/* ---------- the Z: bottom-left context, bottom-right action ---------- */
.zrow{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:30px 40px;margin-top:clamp(30px,4vw,48px);
  padding-top:clamp(24px,3vw,34px);border-top:1px solid var(--rule);
}
.zrow .facts{flex:1 1 20rem}
.zrow .cta{flex:0 0 auto;margin:0}

/* Secondary action block. Bone ground, not Signal — the top-right button is the
   page's single Signal element and this must not compete with it. */
.cta{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:var(--bone);color:var(--ink);text-decoration:none;
  padding:22px 26px;margin-block:4px;
}
.cta .s{font-family:var(--display);font-weight:500;font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;opacity:.66;margin-bottom:6px}
.cta .t{font-family:var(--display);font-weight:700;font-size:clamp(17px,2.3vw,21px);
  letter-spacing:-.02em;line-height:1.2}
.cta .arrow{font-family:var(--display);font-weight:700;font-size:28px;line-height:1;flex:0 0 auto}
.cta:hover{background:#fbf9f2}

/* ---------- pre-registration form ---------- */
.form{display:flex;flex-direction:column;gap:20px;max-width:44rem}
.f2{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(min(100%,15rem),1fr))}
.field{display:flex;flex-direction:column;gap:7px;min-width:0}
.field label{font-family:var(--display);font-weight:500;font-size:10px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--slate)}
.field input,.field select,.field textarea{
  font-family:var(--body);font-weight:300;font-size:16.5px;color:var(--bone);
  background:var(--surface);border:1px solid var(--rule);border-radius:0;
  padding:13px 14px;width:100%;min-width:0;
}
.field textarea{resize:vertical;line-height:1.55;font-size:16px}
.field select{font-family:var(--display);font-weight:500;font-size:15px;
  appearance:none;background-image:none;cursor:pointer}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--slate);background:#18241F}
.field input::placeholder,.field textarea::placeholder{color:#5E6A64}
.field input[aria-invalid="true"],.field textarea[aria-invalid="true"]{border-color:#C98A6A}
.field .hint{font-size:14px;color:var(--slate);font-style:italic}

.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.formfoot{display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px;margin-top:4px}
button.submit{
  font-family:var(--display);font-weight:700;font-size:14px;letter-spacing:.03em;
  text-transform:uppercase;background:var(--bone);color:var(--ink);
  border:0;border-radius:0;padding:15px 26px;cursor:pointer;
}
button.submit:hover{background:#fbf9f2}
button.submit[disabled]{opacity:.55;cursor:default}
.status{font-size:15.5px;color:var(--slate);margin:0}
.status.bad{color:#D9A184}
.status.good{color:var(--bone)}

.done{border:1px solid var(--rule);background:var(--surface);padding:28px 26px;max-width:44rem;
  display:flex;flex-direction:column;gap:10px}
.done h3{font-size:20px}
.done p{font-size:16px;color:var(--slate)}

/* ---------- contact / copy field ---------- */
.contact{display:flex;flex-wrap:wrap;gap:24px 56px;justify-content:space-between}
.copyrow{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.copyrow code{font-family:var(--display);font-weight:500;font-size:15px;color:var(--bone);
  letter-spacing:-.005em;word-break:break-all}
button.copy{
  font-family:var(--display);font-weight:500;font-size:9.5px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--slate);background:transparent;
  border:1px solid var(--rule);padding:5px 9px;cursor:pointer;
}
button.copy:hover{color:var(--bone);border-color:var(--slate)}

/* ---------- partner row + footer ---------- */
.partners{background:var(--bone);color:var(--ink)}
.partners .wrap{display:flex;flex-wrap:wrap;gap:18px 40px;justify-content:space-between;
  align-items:flex-end;padding-block:20px}
.partners .pl{font-family:var(--display);font-weight:500;font-size:9.5px;letter-spacing:.14em;
  text-transform:uppercase;color:#3A4642;margin-bottom:6px}
.partners .pn{font-family:var(--display);font-weight:700;font-size:15.5px;letter-spacing:-.015em}
.partners .ps{font-size:14px;color:#3A4642;line-height:1.45}
.partners .ps strong{font-family:var(--display);font-weight:700;font-size:14.5px;color:#0E1613}

footer{border-top:1px solid var(--rule)}
footer .wrap{padding-block:30px 40px;display:flex;flex-direction:column;gap:22px}
footer .fnav{display:flex;flex-wrap:wrap;gap:6px 22px}
footer .fine{font-size:13.5px;color:var(--slate);line-height:1.55;max-width:40rem}

@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}