:root {
  --ink: #071923;
  --ink-soft: #0e2834;
  --paper: #f5f7f6;
  --white: #ffffff;
  --orange: #ff8900;
  --orange-deep: #e96f00;
  --teal: #3d9884;
  --steel: #6e8397;
  --line: #d8e0e2;
  --muted: #60717a;
  --success: #147a61;
  --error: #b42318;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.28);
  --display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --body: "Manrope", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
button, input { font: inherit; }
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link {
  position: fixed;
  left: 12px;
  top: -60px;
  z-index: 1000;
  padding: 10px 16px;
  color: var(--white);
  background: var(--ink);
  border-radius: 4px;
}
.skip-link:focus { top: 12px; }

.site-header {
  position: relative;
  z-index: 20;
  background: var(--white);
  border-bottom: 1px solid rgba(7, 25, 35, 0.1);
}
.header-inner { min-height: 88px; display: flex; align-items: center; gap: 34px; }
.brand { flex: 0 0 auto; }
.brand img { width: 190px; height: auto; }
.header-event {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-left: 8px;
  color: var(--muted);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}
.header-event span + span { position: relative; }
.header-event span + span::before {
  content: "";
  position: absolute;
  left: -13px;
  top: 50%;
  width: 1px;
  height: 22px;
  background: var(--line);
  transform: translateY(-50%);
}
.header-call {
  display: flex;
  flex-direction: column;
  margin-left: auto;
  padding-left: 23px;
  border-left: 1px solid var(--line);
  line-height: 1.3;
}
.header-call-label { color: var(--muted); font-size: 14px; text-transform: uppercase; letter-spacing: .08em; }
.header-phones { display: flex; align-items: center; gap: 9px; }
.header-phones a { color: var(--ink); font-size: 18px; font-weight: 800; text-decoration: none; white-space: nowrap; }
.header-phones span { color: var(--orange-deep); font-weight: 700; }
.header-phones a:hover { color: var(--orange-deep); }

.hero {
  position: relative;
  min-height: 790px;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
}
.hero-backdrop {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(4, 16, 23, .96) 0%, rgba(4, 16, 23, .83) 42%, rgba(4, 16, 23, .45) 70%, rgba(4, 16, 23, .62) 100%),
    linear-gradient(0deg, rgba(4, 16, 23, .42), rgba(4, 16, 23, .06)),
    url("../images/fsd-hero.jpg") center / cover no-repeat;
  transform: scale(1.01);
}
.hero-backdrop::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .18;
  background-image: linear-gradient(rgba(255,255,255,.14) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.14) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to right, black, transparent 65%);
}
.hero-backdrop::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 45%;
  height: 7px;
  background: var(--orange);
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 480px;
  gap: 78px;
  align-items: center;
  min-height: 790px;
  padding-block: 70px;
}
.hero-copy { max-width: 650px; padding-bottom: 10px; }
.eyebrow { margin: 0 0 22px; }
.eyebrow span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 3px 14px 3px 12px;
  color: var(--ink);
  background: var(--orange);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 50%, calc(100% - 10px) 100%, 0 100%);
}
.hero h1 {
  max-width: 720px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(68px, 7.2vw, 108px);
  font-weight: 800;
  letter-spacing: -.045em;
  line-height: .83;
  text-transform: uppercase;
}
.hero h1 em { color: var(--orange); font-style: normal; }
.hero-intro {
  max-width: 590px;
  margin: 28px 0 30px;
  color: rgba(255,255,255,.82);
  font-size: 20px;
  line-height: 1.7;
}
.event-brief {
  display: grid;
  grid-template-columns: 160px 1fr;
  max-width: 570px;
  border-block: 1px solid rgba(255,255,255,.22);
}
.brief-date { display: flex; align-items: center; gap: 12px; padding: 18px 20px 18px 0; border-right: 1px solid rgba(255,255,255,.22); }
.brief-date strong { flex-shrink: 0; font-family: var(--display); font-size: 44px; line-height: 1; white-space: nowrap; }
.brief-date span { color: rgba(255,255,255,.68); font-size: 14px; font-weight: 700; letter-spacing: .08em; line-height: 1.4; text-transform: uppercase; }
.brief-location { display: flex; flex-direction: column; justify-content: center; padding: 18px 0 18px 24px; line-height: 1.35; }
.brief-location .brief-label { color: var(--orange); font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.brief-location strong { margin: 3px 0; font-size: 15px; }
.brief-location > span:last-child { color: rgba(255,255,255,.68); font-size: 14px; }
.hero-text-link { display: inline-flex; gap: 14px; margin-top: 28px; color: var(--white); font-size: 12px; font-weight: 800; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
.hero-text-link span { color: var(--orange); }

.lead-card {
  padding: 32px 32px 28px;
  color: var(--ink);
  background: rgba(255,255,255,.97);
  border-top: 6px solid var(--orange);
  box-shadow: var(--shadow);
}
.form-kicker, .section-kicker {
  margin: 0 0 8px;
  color: var(--orange-deep);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.lead-card h2 { margin: 0; font-family: var(--display); font-size: 34px; line-height: 1.05; text-transform: uppercase; }
.lead-card-heading > p:last-child { margin: 10px 0 18px; color: var(--muted); font-size: 14px; line-height: 1.55; }
.interest-fieldset { margin: 0 0 16px; padding: 0; border: 0; }
.interest-fieldset legend, .field label { margin-bottom: 5px; color: #334852; font-size: 13px; font-weight: 800; letter-spacing: .03em; text-transform: uppercase; }
.interest-options { display: grid; grid-template-columns: 1fr 1fr; padding: 4px; background: #e9eeef; border-radius: 6px; }
.interest-option { position: relative; cursor: pointer; }
.interest-option input { position: absolute; opacity: 0; pointer-events: none; }
.interest-option span { display: flex; align-items: center; justify-content: center; min-height: 40px; color: var(--muted); font-size: 14px; font-weight: 800; border-radius: 4px; transition: .2s ease; }
.interest-option input:checked + span { color: var(--white); background: var(--ink); box-shadow: 0 4px 12px rgba(7,25,35,.18); }
.interest-option input:focus-visible + span { outline: 3px solid rgba(255,137,0,.45); outline-offset: 2px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { display: flex; flex-direction: column; min-width: 0; }
.field-wide { grid-column: 1 / -1; }
.field input {
  width: 100%;
  height: 44px;
  padding: 0 12px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid #cbd5d8;
  border-radius: 3px;
  outline: none;
  font-size: 15px;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.field input::placeholder { color: #98a5aa; }
.field input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(61,152,132,.13); }
.field input[aria-invalid="true"] { border-color: var(--error); }
.field-error { min-height: 0; color: var(--error); font-size: 10px; line-height: 1.3; }
.field-error:not(:empty) { margin-top: 4px; }
.consent { display: flex; gap: 8px; margin: 15px 0; color: var(--muted); font-size: 13px; line-height: 1.5; cursor: pointer; }
.consent input { flex: 0 0 auto; width: 15px; height: 15px; margin: 0; accent-color: var(--teal); }
.submit-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 52px;
  padding: 0 8px 0 20px;
  color: var(--ink);
  background: var(--orange);
  border: 0;
  border-radius: 3px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .035em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .2s ease, transform .2s ease;
}
.submit-button:hover { background: #ff9b26; transform: translateY(-1px); }
.submit-button:focus-visible { outline: 3px solid rgba(255,137,0,.42); outline-offset: 3px; }
.submit-button:disabled { opacity: .65; cursor: wait; transform: none; }
.button-arrow { display: grid; place-items: center; width: 38px; height: 38px; color: var(--white); background: var(--ink); border-radius: 2px; font-size: 20px; }
.form-note { margin: 9px 0 0; color: #829096; font-size: 12px; text-align: center; }
.form-status { display: none; margin-top: 12px; padding: 10px 12px; border-radius: 3px; font-size: 12px; font-weight: 700; line-height: 1.45; }
.form-status.is-success { display: block; color: #0a5c47; background: #e5f5ef; }
.form-status.is-error { display: block; color: #8d2118; background: #fceae8; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.proof-strip { position: relative; z-index: 5; color: var(--white); background: var(--teal); }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.proof-item { position: relative; display: flex; align-items: baseline; justify-content: center; gap: 10px; padding: 25px 20px; }
.proof-item + .proof-item::before { content: ""; position: absolute; left: 0; top: 28%; width: 1px; height: 44%; background: rgba(255,255,255,.28); }
.proof-item strong { font-family: var(--display); font-size: 34px; line-height: 1; }
.proof-item span { font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }

.section { padding-block: 105px; }
.section-heading { max-width: 760px; margin-bottom: 48px; }
.section-heading h2, .showcase-copy h2, .closing-cta h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(48px, 5vw, 70px);
  font-weight: 800;
  letter-spacing: -.025em;
  line-height: .95;
  text-transform: uppercase;
}
.split-heading { display: grid; grid-template-columns: 1.3fr .7fr; gap: 80px; align-items: end; max-width: none; }
.split-heading > p { margin: 0 0 4px; color: var(--muted); font-size: 18px; }
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.audience-card { position: relative; overflow: hidden; min-height: 520px; padding: 43px 44px 38px; color: var(--white); background: var(--ink); }
.audience-card::after { content: ""; position: absolute; right: -95px; bottom: -110px; width: 290px; height: 290px; border: 50px solid rgba(255,255,255,.035); border-radius: 50%; }
.exhibitor-card { background: var(--ink); }
.visitor-card { background: var(--steel); }
.audience-label { display: flex; align-items: center; gap: 9px; color: rgba(255,255,255,.65); font-size: 13px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.audience-label span { width: 24px; height: 4px; background: var(--orange); }
.audience-card h3 { max-width: 460px; margin: 27px 0 23px; font-family: var(--display); font-size: 42px; line-height: 1; text-transform: uppercase; }
.audience-card ul { position: relative; z-index: 1; margin: 0; padding: 0; list-style: none; }
.audience-card li { position: relative; margin: 12px 0; padding-left: 24px; color: rgba(255,255,255,.78); font-size: 15px; }
.audience-card li::before { content: ""; position: absolute; left: 0; top: .7em; width: 10px; height: 2px; background: var(--orange); }
.audience-card a { position: absolute; z-index: 2; left: 44px; bottom: 35px; display: inline-flex; gap: 12px; color: var(--white); font-size: 12px; font-weight: 800; letter-spacing: .05em; text-decoration: none; text-transform: uppercase; }
.audience-card a span { color: var(--orange); }

.showcase { color: var(--white); background: var(--ink); }
.showcase-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 84px; align-items: center; }
.showcase-image-wrap { position: relative; }
.showcase-image-wrap::before { content: ""; position: absolute; inset: -16px 16px 16px -16px; border: 1px solid rgba(255,255,255,.16); }
.showcase-image-wrap img { position: relative; z-index: 1; width: 100%; aspect-ratio: 1.22; object-fit: cover; }
.image-stamp { position: absolute; z-index: 2; right: -18px; bottom: -18px; display: flex; flex-direction: column; width: 120px; padding: 18px; color: var(--ink); background: var(--orange); line-height: 1; }
.image-stamp span { font-size: 10px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.image-stamp strong { font-family: var(--display); font-size: 39px; }
.showcase-copy h2 { max-width: 520px; }
.showcase-copy > p:not(.section-kicker) { margin: 26px 0 30px; color: rgba(255,255,255,.64); font-size: 18px; }
.mini-facts { border-top: 1px solid rgba(255,255,255,.18); }
.mini-facts div { display: grid; grid-template-columns: 72px 1fr; gap: 16px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.18); }
.mini-facts span { color: var(--orange); font-size: 10px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.mini-facts strong { font-size: 13px; }

.categories { background: var(--white); }
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.category { min-height: 280px; padding: 34px 30px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: color .25s ease, background .25s ease; }
.category:hover { color: var(--white); background: var(--ink); }
.category-mark { display: block; margin-bottom: 30px; color: var(--orange-deep); font-family: var(--display); font-size: 22px; font-weight: 800; }
.category strong { display: block; font-family: var(--display); font-size: 28px; line-height: 1.08; text-transform: uppercase; }
.category p { margin: 16px 0 0; color: var(--muted); font-size: 17px; line-height: 1.6; }
.category:hover p { color: rgba(255,255,255,.65); }

.closing-cta { padding-block: 76px; color: var(--ink); background: var(--orange); }
.closing-cta .section-kicker { color: rgba(7,25,35,.62); }
.closing-grid { display: grid; grid-template-columns: 1fr auto; gap: 70px; align-items: center; }
.closing-cta h2 { max-width: 760px; font-size: clamp(44px, 5vw, 66px); }
.closing-button { display: flex; align-items: center; gap: 25px; min-height: 60px; padding: 0 10px 0 24px; color: var(--white); background: var(--ink); font-size: 12px; font-weight: 800; letter-spacing: .05em; text-decoration: none; text-transform: uppercase; }
.closing-button span { display: grid; place-items: center; width: 40px; height: 40px; color: var(--ink); background: var(--white); font-size: 18px; }

.site-footer { padding: 60px 0 22px; color: rgba(255,255,255,.65); background: #041118; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: 50px; }
.footer-brand img { width: 170px; height: auto; padding: 7px; background: var(--white); border-radius: 3px; }
.footer-brand p { margin: 15px 0 0; font-size: 14px; }
.footer-contact, .footer-event { display: flex; flex-direction: column; align-items: flex-start; font-size: 15px; }
.footer-contact span, .footer-event span:first-of-type { margin-bottom: 10px; color: var(--orange); font-size: 14px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
.footer-contact a { color: var(--white); text-decoration: none; }
.footer-event strong { color: var(--white); }
.footer-event span { font-size: 14px; }
.footer-bottom { display: flex; justify-content: space-between; margin-top: 48px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); font-size: 12px; }
.footer-bottom a { text-decoration: none; }
.mobile-cta { display: none; }

@media (max-width: 1050px) {
  .header-event { display: none; }
  .hero-grid { grid-template-columns: minmax(0, 1fr) 430px; gap: 38px; }
  .hero h1 { font-size: 78px; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .header-call { padding-left: 15px; }
  .header-phones { flex-direction: column; align-items: flex-start; gap: 0; line-height: 1.15; }
  .header-phones span { display: none; }
  .header-phones a { font-size: 13px; }
}

@media (max-width: 860px) {
  .header-inner { min-height: 76px; }
  .brand img { width: 165px; }
  .header-call-label { display: none; }
  .hero { min-height: 0; }
  .hero-grid { display: block; min-height: 0; padding-block: 64px 70px; }
  .hero-copy { margin-bottom: 52px; }
  .hero h1 { font-size: clamp(65px, 15vw, 94px); }
  .lead-card { max-width: 620px; margin-inline: auto; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-item:nth-child(3)::before { display: none; }
  .split-heading { grid-template-columns: 1fr; gap: 20px; }
  .audience-grid { grid-template-columns: 1fr; }
  .showcase-grid { grid-template-columns: 1fr; gap: 62px; }
  .showcase-image-wrap { max-width: 680px; }
  .closing-grid { grid-template-columns: 1fr; gap: 34px; }
  .closing-button { width: max-content; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  body { padding-bottom: 66px; }
  .container { width: min(100% - 28px, 1180px); }
  .site-header { position: sticky; top: 0; box-shadow: 0 4px 18px rgba(7,25,35,.1); }
  .header-inner { min-height: 68px; }
  .brand img { width: 145px; }
  .header-call { padding-left: 14px; font-size: 11px; }
  .header-phones a { font-size: 12px; }
  .hero-grid { padding-block: 46px 54px; }
  .hero-copy { margin-bottom: 38px; }
  .eyebrow { margin-bottom: 17px; }
  .hero h1 { font-size: clamp(58px, 18vw, 77px); }
  .hero-intro { margin: 22px 0 24px; font-size: 17px; line-height: 1.6; }
  .event-brief { grid-template-columns: 144px 1fr; }
  .brief-date { gap: 7px; padding-right: 10px; }
  .brief-date strong { font-size: 33px; }
  .brief-date span { font-size: 11px; }
  .brief-location { padding-left: 15px; }
  .brief-location strong { font-size: 12px; }
  .hero-text-link { display: none; }
  .lead-card { margin-inline: -3px; padding: 26px 20px 22px; }
  .lead-card h2 { font-size: 29px; }
  .form-grid { grid-template-columns: 1fr; gap: 10px; }
  .field-wide { grid-column: auto; }
  .proof-item { flex-direction: column; align-items: center; gap: 2px; padding: 22px 8px; }
  .proof-item strong { font-size: 31px; }
  .proof-item span { font-size: 8px; }
  .section { padding-block: 72px; }
  .section-heading { margin-bottom: 34px; }
  .section-heading h2, .showcase-copy h2 { font-size: 46px; }
  .audience-card { min-height: 555px; padding: 34px 25px; }
  .audience-card h3 { font-size: 36px; }
  .audience-card a { left: 25px; bottom: 28px; }
  .showcase-grid { gap: 52px; }
  .showcase-image-wrap::before { inset: -8px 8px 8px -8px; }
  .image-stamp { right: -5px; bottom: -20px; }
  .category-grid { grid-template-columns: 1fr; }
  .category { min-height: 240px; }
  .category-mark { margin-bottom: 20px; }
  .closing-cta { padding-block: 58px; }
  .closing-cta h2 { font-size: 45px; }
  .closing-button { width: 100%; justify-content: space-between; }
  .footer-grid { grid-template-columns: 1fr; gap: 35px; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { flex-direction: column; gap: 6px; }
  .mobile-cta {
    position: fixed;
    z-index: 50;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 66px;
    padding: 0 22px;
    color: var(--ink);
    background: var(--orange);
    box-shadow: 0 -6px 22px rgba(0,0,0,.18);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .05em;
    text-decoration: none;
    text-transform: uppercase;
  }
  .mobile-cta span { font-size: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}