:root{
  --usi-sky:#1FB7EB;
  --usi-sky-dark:#1399c6;
  --usi-charcoal:#575656;
  --usi-black:#1D1D1B;
  --usi-white:#FFFFFF;
  --usi-soft:#F6F8FA;
  --usi-soft-blue:#F2FAFD;
  --usi-line:#DFE6EA;
  --usi-muted:#6E747A;
  --usi-radius:22px;
}

.usi-iaa,
.usi-iaa *{box-sizing:border-box}

.usi-iaa{
  font-family:"Assistant",Arial,sans-serif;
  color:var(--usi-black);
  background:var(--usi-white);
  font-size:17px;
  line-height:1.55;
}

.usi-iaa a{color:inherit}
.usi-iaa h1,.usi-iaa h2,.usi-iaa h3,.usi-iaa p{margin-top:0}
.usi-wrap{width:min(1120px,calc(100% - 40px));margin:0 auto}

/* Hero */
.usi-hero{
  background:var(--usi-white);
  padding:22px 0 42px;
  border-top:4px solid var(--usi-sky);
  border-bottom:1px solid var(--usi-line);
}
.usi-hero:after,
.usi-hero__glow{display:none}
.usi-brandline{
  display:flex;
  align-items:center;
  gap:14px;
  min-height:42px;
  flex-wrap:wrap;
}
.usi-brandmark .custom-logo-link{display:block;line-height:0}
.usi-brandmark img{max-height:38px;width:auto}
.usi-brandline__divider{height:24px;width:1px;background:var(--usi-line)}
.usi-brandline__partner{
  font-size:13px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--usi-charcoal);
  font-weight:700;
}
.usi-brandtext{display:inline-flex;align-items:center;gap:8px;font-size:25px;font-weight:700;color:var(--usi-black)}
.usi-brandicon{display:inline-grid;place-items:center;width:29px;height:29px;border-radius:50%;background:var(--usi-sky);color:#fff;font-size:18px;font-weight:800}

.usi-hero__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:0;
  align-items:start;
  padding-top:18px;
}
.usi-hero__visual{display:none}
.usi-hero__copy{
  max-width:860px;
}
.usi-eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:800;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--usi-sky-dark);
  margin-bottom:14px;
}
.usi-iaa .usi-hero h1{
  font-size:clamp(34px,5.2vw,64px);
  line-height:1.02;
  letter-spacing:-.035em;
  margin:0 0 18px;
  font-weight:800;
  color:var(--usi-black) !important;
  max-width:760px;
}
.usi-lead{
  font-size:clamp(19px,2.2vw,28px);
  line-height:1.36;
  color:var(--usi-charcoal);
  max-width:760px;
  margin:0 0 22px;
}
.usi-hero__meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  margin:0 0 28px;
}
.usi-hero__meta span,
.usi-event-card__facts span{display:inline-flex;align-items:center;gap:8px}
.usi-hero__meta svg,
.usi-event-card__facts svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8}
.usi-hero__meta span{
  font-size:15px;
  color:var(--usi-charcoal);
}
.usi-primary-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
  background:var(--usi-sky);
  color:var(--usi-white)!important;
  font-weight:800;
  padding:14px 24px;
  border-radius:999px;
  transition:background .2s ease, transform .2s ease;
}
.usi-primary-cta:hover{background:var(--usi-sky-dark);transform:translateY(-1px)}

/* Main */
.usi-main{padding:44px 0 50px}
.usi-section-heading{max-width:760px;margin-bottom:28px}
.usi-section-heading>span,
.usi-mini-label{
  display:inline-block;
  font-size:12px;
  font-weight:800;
  letter-spacing:.12em;
  color:var(--usi-sky-dark);
  text-transform:uppercase;
  margin-bottom:8px;
}
.usi-section-heading h2,
.usi-registration h2{
  font-size:clamp(28px,4vw,44px);
  line-height:1.08;
  letter-spacing:-.03em;
  margin:0 0 12px;
  color:var(--usi-black);
}
.usi-section-heading p,
.usi-registration__intro p{font-size:18px;color:var(--usi-charcoal);margin:0}

/* Event cards */
.usi-event-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-bottom:38px;
}
.usi-event-card{
  position:relative;
  border:1px solid var(--usi-line);
  background:#fff;
  border-radius:var(--usi-radius);
  padding:22px;
  min-height:0;
  display:flex;
  flex-direction:column;
  box-shadow:none;
  transition:border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.usi-event-card:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(29,29,27,.06)}
.usi-event-card.is-selected{border-color:var(--usi-sky);box-shadow:0 0 0 3px rgba(31,183,235,.12)}
.usi-event-card--tech{border-top:4px solid var(--usi-sky)}
.usi-event-card--evening{border-top:4px solid var(--usi-black);color:var(--usi-black)}
.usi-event-card--dropin{border-top:4px solid #9aa4aa;background:var(--usi-soft-blue)}
.usi-event-card.is-full{opacity:.7;filter:none}
.usi-event-card__top{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:10px;
  margin-bottom:18px;
}
.usi-badge{
  display:inline-flex;
  border:1px solid var(--usi-line);
  background:var(--usi-soft);
  border-radius:999px;
  padding:6px 10px;
  font-size:10px;
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.usi-capacity{font-size:12px;font-weight:700;color:var(--usi-charcoal);text-align:right}
.usi-capacity--open{color:var(--usi-sky-dark)}
.usi-kicker{font-size:14px;font-weight:800;color:var(--usi-sky-dark);margin-bottom:7px}
.usi-event-card h3{
  font-size:28px;
  line-height:1.08;
  letter-spacing:-.02em;
  margin:0 0 12px;
  color:var(--usi-black);
}
.usi-event-card p{font-size:16px;color:var(--usi-charcoal);margin:0 0 18px}
.usi-event-card__facts{display:flex;flex-direction:column;gap:7px;font-size:14px;color:#555;margin-top:auto;margin-bottom:18px}
.usi-event-button{
  width:100%;
  border:0;
  border-radius:13px;
  padding:13px 16px;
  background:var(--usi-sky);
  color:#fff;
  font:inherit;
  font-weight:800;
  cursor:pointer;
  transition:background .2s ease,transform .2s ease;
}
.usi-event-button:hover{background:var(--usi-sky-dark);transform:translateY(-1px)}
.usi-event-card--evening .usi-event-button{background:var(--usi-black)}
.usi-event-card--evening .usi-event-button:hover{background:#303030}
.usi-event-card.is-selected .usi-event-button{background:var(--usi-sky-dark)}
.usi-event-button__selected{display:none}
.usi-event-card.is-selected .usi-event-button__default{display:none}
.usi-event-card.is-selected .usi-event-button__selected{display:inline}
.usi-event-button:disabled{cursor:not-allowed;transform:none;background:#9da3a6;color:#fff}

/* IAA promotion banner */
.usi-promo{
  display:grid;
  grid-template-columns:1fr auto;
  gap:28px;
  align-items:center;
  margin:-4px 0 38px;
  padding:24px 26px;
  background:var(--usi-soft-blue);
  border:1px solid #d7edf6;
  border-left:5px solid var(--usi-sky);
  border-radius:18px;
}
.usi-promo__copy{max-width:780px}
.usi-promo__eyebrow{
  display:block;
  margin-bottom:5px;
  color:var(--usi-sky);
  font-size:11px;
  line-height:1.3;
  font-weight:800;
  letter-spacing:.1em;
  text-transform:uppercase;
}
.usi-promo h2{
  margin:0 0 7px;
  color:var(--usi-black);
  font-size:clamp(23px,3vw,32px);
  line-height:1.12;
  letter-spacing:-.02em;
}
.usi-promo p{
  margin:0;
  color:var(--usi-charcoal);
  font-size:15px;
  line-height:1.5;
}
.usi-promo__meta{
  display:block;
  margin-top:10px;
  color:var(--usi-charcoal);
  font-size:12px;
  font-weight:700;
}
.usi-promo__action{
  min-width:205px;
  text-align:center;
}
.usi-promo__button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  width:100%;
  padding:13px 18px;
  border-radius:999px;
  background:var(--usi-sky);
  color:#fff!important;
  font-weight:800;
  text-decoration:none;
}
.usi-promo__button:hover{opacity:.92}
.usi-promo__mail{
  display:inline-block;
  margin-top:9px;
  color:var(--usi-charcoal)!important;
  font-size:12px;
  text-decoration:underline;
}

/* Registration */
.usi-registration{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:34px;
  background:#fff;
  border:1px solid var(--usi-line);
  border-radius:28px;
  padding:32px;
  margin:0 0 28px;
}
.usi-registration__intro{padding-right:0}
.usi-selection-summary{
  margin-top:22px;
  padding:14px 16px;
  border-radius:14px;
  background:var(--usi-soft-blue);
  border:1px solid #d7edf6;
  font-size:14px;
  font-weight:700;
  color:var(--usi-charcoal);
}
.usi-selection-summary strong{color:var(--usi-black)}
.usi-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.usi-field{display:block}
.usi-field--wide{grid-column:1/-1}
.usi-field>span{display:block;font-size:13px;font-weight:750;margin:0 0 6px;color:var(--usi-black)}
.usi-field small{font-weight:500;color:var(--usi-muted)}
.usi-field input,
.usi-field select,
.usi-field textarea{
  width:100%;
  min-height:48px;
  border:1px solid #d8dddf;
  background:#fff;
  border-radius:11px;
  padding:10px 13px;
  font:inherit;
  color:var(--usi-black);
  outline:none;
  box-shadow:none;
}
.usi-field textarea{min-height:86px;resize:vertical}
.usi-field input:focus,
.usi-field select:focus,
.usi-field textarea:focus{border-color:var(--usi-sky);box-shadow:0 0 0 3px rgba(31,183,235,.1)}
.usi-consent{display:flex;gap:10px;align-items:flex-start;margin-top:18px;font-size:13px;color:var(--usi-charcoal)}
.usi-consent input{margin-top:4px}
.usi-consent a{color:inherit!important;text-decoration:underline;text-underline-offset:2px}
.usi-hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.usi-form__footer{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:22px}
.usi-form-message{font-size:13px;line-height:1.35;color:#b42318;max-width:58%}
.usi-form-message.is-success{color:#18794e}
.usi-submit{
  margin-left:auto;
  border:0;
  border-radius:999px;
  background:var(--usi-sky);
  color:#fff;
  padding:14px 22px;
  font:inherit;
  font-weight:850;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  gap:12px;
  transition:background .2s ease,transform .2s ease;
}
.usi-submit:hover{background:var(--usi-sky-dark);transform:translateY(-1px)}
.usi-submit:disabled{opacity:.55;cursor:wait}
.usi-hidden-events{position:absolute;left:-9999px}
.usi-success{grid-column:1/-1;text-align:center;padding:24px 15px 6px}
.usi-success__icon{margin:0 auto 18px;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--usi-sky);color:#fff;font-size:27px;font-weight:900}
.usi-success p{font-size:18px;color:var(--usi-charcoal)}
.usi-success__selection{display:grid;gap:8px;max-width:680px;margin:24px auto 0}
.usi-success__selection div{background:#fff;border:1px solid var(--usi-line);border-radius:12px;padding:13px 16px;text-align:left}
.usi-footnote{
  display:flex;
  flex-wrap:wrap;
  gap:10px 18px;
  align-items:center;
  border-top:1px solid var(--usi-line);
  padding-top:22px;
  color:var(--usi-charcoal);
  font-size:13px;
}
.usi-footnote strong{color:var(--usi-black)}

@media (max-width:980px){
  .usi-event-grid{grid-template-columns:1fr}
  .usi-promo{grid-template-columns:1fr;gap:18px}
  .usi-promo__action{min-width:0;text-align:left;max-width:320px}
  .usi-registration{grid-template-columns:1fr}
}

@media (max-width:640px){
  .usi-wrap{width:min(100% - 24px,1120px)}
  .usi-hero{padding-top:18px;padding-bottom:34px}
  .usi-brandline{gap:10px}
  .usi-brandline__partner{font-size:10px}
  .usi-brandline__divider{height:20px}
  .usi-hero__grid{padding-top:26px}
  .usi-iaa .usi-hero h1{font-size:38px}
  .usi-lead{font-size:19px}
  .usi-main{padding-top:34px}
  .usi-section-heading p{font-size:17px}
  .usi-event-grid{margin-bottom:32px}
  .usi-event-card{padding:18px}
  .usi-registration{padding:22px 18px;border-radius:24px;gap:22px}
  .usi-form-grid{grid-template-columns:1fr}
  .usi-field--wide{grid-column:auto}
  .usi-form__footer{align-items:stretch;flex-direction:column}
  .usi-form-message{max-width:100%}
  .usi-submit{width:100%;justify-content:center;margin-left:0}
}