:root {
  --asc-blue: #0035c8;
  --asc-blue-deep: #0035a3;
  --asc-coral: #ff4545;
  --white: #ffffff;
  --ink: #0f0f0f;
  --muted: #555c73;
  --content-width: 1152px;
  --body-font: "HK Grotesk", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --display-font: aktiv-grotesk-extended, "Arial Black", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  color: var(--white);
  background: var(--asc-blue);
  font-family: var(--body-font);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

button,
input {
  font: inherit;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  color: var(--asc-blue);
  background: var(--white);
  font-weight: 700;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--white);
  outline-offset: 4px;
}

.registration-card :focus-visible {
  outline-color: var(--asc-blue);
}

.site-header {
  position: relative;
  z-index: 20;
  height: 125px;
  background: var(--asc-blue);
}

.header-inner {
  display: flex;
  width: min(calc(100% - 48px), var(--content-width));
  height: 100%;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand,
.footer-brand {
  display: inline-flex;
  flex: 0 0 auto;
}

.brand img {
  display: block;
  width: 287px;
  height: auto;
}

.primary-navigation ul,
.footer-links ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.primary-navigation > ul {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.primary-navigation a {
  display: block;
  padding: 0.5rem 0.7rem;
  font-size: 1.166rem;
  font-weight: 700;
  text-decoration: none;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.primary-navigation a:hover {
  text-decoration: underline;
}

.primary-navigation a[aria-current="page"] {
  position: relative;
}

.primary-navigation a[aria-current="page"]::after {
  position: absolute;
  bottom: -5px;
  left: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--asc-coral);
  content: "";
  transform: translateX(-50%);
}

.menu-toggle {
  display: none;
}

.event-section {
  position: relative;
  isolation: isolate;
  min-height: 720px;
  overflow: hidden;
  background: var(--asc-blue);
}

.event-section::before {
  position: absolute;
  top: -360px;
  left: -310px;
  z-index: -1;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: var(--asc-blue-deep);
  content: "";
}

.event-accent {
  position: absolute;
  right: max(-170px, calc((100vw - var(--content-width)) / 2 - 240px));
  bottom: -220px;
  z-index: -1;
  width: 650px;
  height: 650px;
  border-radius: 50%;
  background: var(--asc-coral);
  opacity: 0.98;
}

.event-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 470px);
  width: min(calc(100% - 48px), var(--content-width));
  margin: 0 auto;
  padding: 56px 0 96px;
  align-items: start;
  gap: clamp(3rem, 7vw, 7.5rem);
}

.event-introduction {
  padding-top: 24px;
}

.eyebrow,
.card-kicker {
  margin: 0 0 1rem;
  color: var(--asc-coral);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--white);
  font-size: 2rem;
  line-height: 1.1;
}

.card-kicker {
  color: var(--asc-blue-deep);
}

.accent-text {
  color: var(--asc-coral);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 690px;
  margin-bottom: 2rem;
  font-family: var(--display-font);
  font-size: clamp(3.8rem, 6.2vw, 6.15rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.94;
}

.introduction {
  max-width: 590px;
  margin-bottom: 2.2rem;
  font-size: clamp(1.12rem, 1.5vw, 1.28rem);
  line-height: 1.55;
}

.event-details {
  display: grid;
  max-width: 590px;
  margin: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.55);
}

.event-details div {
  display: grid;
  grid-template-columns: 92px 1fr;
  padding: 0.82rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.55);
  align-items: baseline;
  gap: 1.25rem;
}

.event-details dt {
  font-weight: 700;
}

.event-details dd {
  margin: 0;
}

.registration-card {
  position: relative;
  color: var(--ink);
  background: var(--white);
  padding: clamp(2rem, 4vw, 3.5rem);
  box-shadow: 0 24px 60px rgba(0, 26, 109, 0.22);
}

.registration-card::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 108px;
  height: 8px;
  background: var(--asc-coral);
  content: "";
}

.registration-card h2 {
  margin-bottom: 0.65rem;
  color: var(--asc-blue);
  font-family: var(--display-font);
  font-size: clamp(2.1rem, 3vw, 3rem);
  line-height: 1;
}

.card-introduction {
  margin-bottom: 2rem;
  color: var(--muted);
}

.form-field {
  margin-bottom: 1.25rem;
}

.form-field label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--asc-blue-deep);
  font-weight: 700;
}

.form-field input {
  width: 100%;
  min-height: 52px;
  padding: 0.7rem 0.85rem;
  border: 2px solid #c3cbe0;
  border-radius: 0;
  color: var(--ink);
  background: var(--white);
}

.form-field input:hover {
  border-color: #8190b8;
}

.form-field input[aria-invalid="true"] {
  border-color: #b00020;
}

.field-error {
  min-height: 1.25rem;
  margin: 0.35rem 0 0;
  color: #9b001c;
  font-size: 0.88rem;
}

.register-button {
  display: inline-flex;
  min-height: 54px;
  margin-top: 0.1rem;
  padding: 0.85rem 1.45rem;
  border: 2px solid var(--asc-coral);
  border-radius: 0;
  align-items: center;
  justify-content: center;
  gap: 1.1rem;
  color: var(--white);
  background: var(--asc-coral);
  font-size: 1.18rem;
  font-weight: 700;
  cursor: pointer;
}

.register-button:hover:not(:disabled) {
  color: var(--asc-coral);
  background: var(--white);
}

.register-button:disabled {
  cursor: wait;
  opacity: 0.68;
}

.form-status {
  min-height: 1.5rem;
  margin-top: 1rem;
  color: #8a0018;
  font-weight: 700;
}

.form-status.is-success {
  padding: 1.1rem;
  border-left: 5px solid var(--asc-blue);
  color: var(--asc-blue-deep);
  background: #edf2ff;
}

.privacy-note {
  margin: 1.4rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.privacy-note a {
  color: var(--asc-blue);
  font-weight: 700;
  text-underline-offset: 3px;
}

.site-footer {
  position: relative;
  overflow: hidden;
  padding: 96px 0 54px;
  background: var(--asc-blue);
}

.footer-accent {
  position: absolute;
  right: -220px;
  bottom: -340px;
  width: 650px;
  height: 650px;
  border-radius: 50%;
  background: var(--asc-coral);
}

.footer-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: min(calc(100% - 48px), var(--content-width));
  margin: 0 auto;
  gap: 4rem;
}

.footer-statement h2 {
  margin-bottom: 0;
  font-family: var(--display-font);
  font-size: clamp(2rem, 3.2vw, 3.2rem);
  line-height: 0.98;
}

.footer-heading {
  margin-bottom: 1.25rem;
  font-size: 1.65rem;
}

.footer-links li + li {
  margin-top: 0.45rem;
}

.footer-links a {
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.footer-bottom {
  display: flex;
  grid-column: 1 / -1;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.35);
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.footer-brand img {
  display: block;
  width: 230px;
  height: auto;
}

.footer-bottom p {
  margin: 0;
}

@media (max-width: 1100px) {
  .brand img {
    width: 225px;
  }

  .primary-navigation a {
    padding-inline: 0.48rem;
    font-size: 1rem;
  }

  .event-layout {
    grid-template-columns: minmax(0, 1fr) minmax(340px, 430px);
    gap: 3rem;
  }
}

@media (max-width: 1023px) {
  .site-header {
    height: 96px;
  }

  .header-inner {
    width: min(calc(100% - 32px), var(--content-width));
  }

  .brand img {
    width: 185px;
  }

  .menu-toggle {
    position: relative;
    z-index: 30;
    display: inline-flex;
    width: 48px;
    height: 48px;
    padding: 0;
    border: 0;
    border-radius: 48% 52% 46% 54%;
    align-items: center;
    justify-content: center;
    color: var(--white);
    background: var(--asc-coral);
    cursor: pointer;
  }

  .menu-icon,
  .menu-icon::before,
  .menu-icon::after {
    display: block;
    width: 19px;
    height: 2px;
    background: currentColor;
    transition: transform 180ms ease, opacity 180ms ease;
  }

  .menu-icon {
    position: relative;
  }

  .menu-icon::before,
  .menu-icon::after {
    position: absolute;
    left: 0;
    content: "";
  }

  .menu-icon::before {
    top: -6px;
  }

  .menu-icon::after {
    top: 6px;
  }

  .menu-toggle[aria-expanded="true"] .menu-icon {
    background: transparent;
  }

  .menu-toggle[aria-expanded="true"] .menu-icon::before {
    top: 0;
    transform: rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] .menu-icon::after {
    top: 0;
    transform: rotate(-45deg);
  }

  .primary-navigation {
    position: fixed;
    inset: 0;
    z-index: 20;
    display: none;
    overflow-y: auto;
    padding: 128px 16px 32px;
    background: var(--asc-blue);
  }

  .primary-navigation.is-open {
    display: block;
  }

  .primary-navigation > ul {
    display: block;
    max-width: 520px;
    margin: 0 auto;
    border-top: 1px solid rgba(255, 255, 255, 0.65);
  }

  .primary-navigation li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.28);
  }

  .primary-navigation a {
    padding: 1.5rem 1rem;
    font-size: 1.45rem;
    text-align: center;
  }

  .primary-navigation a[aria-current="page"]::after {
    bottom: 0.8rem;
  }

  .event-layout {
    grid-template-columns: 1fr;
    width: min(calc(100% - 32px), 720px);
    padding-top: 34px;
    gap: 3.25rem;
  }

  .event-introduction {
    padding-top: 0;
  }

  .event-accent {
    top: 160px;
    right: -500px;
    bottom: auto;
    width: 590px;
    height: 590px;
    opacity: 0.94;
  }

  .site-footer {
    padding-top: 72px;
  }
}

@media (max-width: 600px) {
  .event-section::before {
    top: -300px;
    left: -410px;
    width: 600px;
    height: 600px;
  }

  .event-layout {
    padding-bottom: 64px;
  }

  h1 {
    font-size: clamp(3.3rem, 16.5vw, 4.45rem);
  }

  .introduction {
    max-width: 88%;
  }

  .event-details div {
    grid-template-columns: 76px 1fr;
    gap: 0.75rem;
  }

  .registration-card {
    margin-inline: -4px;
    padding: 2.3rem 1.35rem 2rem;
  }

  .register-button {
    width: 100%;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    width: min(calc(100% - 32px), var(--content-width));
    gap: 2.5rem;
  }

  .footer-bottom {
    grid-column: 1;
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-accent {
    right: -420px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}