:root {
  --color-navy: #0b1a3a;
  --color-cyan: #4dd7f0;
  --color-teal: #17b6b4;
  --color-purple: #6d4df2;
  --color-magenta: #d84fd3;
  --color-bg: #f5f8fc;
  --color-surface: #ffffff;
  --color-text: #17233f;
  --color-muted: #5f6b85;
  --color-border: rgba(11, 26, 58, 0.1);
  --shadow-soft: 0 24px 60px rgba(11, 26, 58, 0.08);
  --shadow-card: 0 16px 36px rgba(19, 33, 71, 0.08);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 999px;
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4.5rem;
  --space-8: 6rem;
  --container: 1180px;
  --font-sans: "Manrope", "Segoe UI", sans-serif;
  --font-serif: "Source Serif 4", Georgia, serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background:
    radial-gradient(circle at top left, rgba(77, 215, 240, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(216, 79, 211, 0.14), transparent 26%),
    linear-gradient(180deg, #fbfdff 0%, var(--color-bg) 100%);
  line-height: 1.65;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -10rem;
  z-index: 1000;
  padding: 0.8rem 1rem;
  background: var(--color-navy);
  color: #fff;
  border-radius: 0 0 0.75rem 0.75rem;
}

.skip-link:focus {
  top: 0;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(245, 248, 252, 0.82);
  border-bottom: 1px solid rgba(11, 26, 58, 0.06);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.brand__image {
  height: auto;
  width: auto;
  max-height: 4.75rem;
}

.brand--footer {
  margin-bottom: 1rem;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  text-decoration: none;
  padding: 0.65rem 0.95rem;
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  font-weight: 700;
  font-size: 0.95rem;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  color: var(--color-navy);
  background: rgba(109, 77, 242, 0.08);
}

.hero,
.page-hero {
  position: relative;
  overflow: hidden;
}

.hero::before,
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(23, 182, 180, 0.12), transparent 20%),
    radial-gradient(circle at 80% 20%, rgba(109, 77, 242, 0.12), transparent 18%),
    linear-gradient(rgba(11, 26, 58, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 26, 58, 0.05) 1px, transparent 1px);
  background-size: auto, auto, 42px 42px, 42px 42px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 90%);
  pointer-events: none;
}

.hero__inner,
.page-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: var(--space-6);
  align-items: center;
  padding: var(--space-7) 0 var(--space-6);
}

.page-hero__inner {
  grid-template-columns: minmax(0, 1fr);
  padding-bottom: var(--space-5);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1rem;
  color: var(--color-purple);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 2.5rem;
  height: 2px;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-magenta));
  border-radius: 999px;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.05;
  color: var(--color-navy);
}

h1 {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 6vw, 5.6rem);
  letter-spacing: -0.04em;
}

h2 {
  font-size: clamp(2rem, 3vw, 3rem);
  letter-spacing: -0.03em;
}

h3 {
  font-size: 1.35rem;
}

p {
  margin: 0 0 1rem;
}

.hero__subtitle,
.page-hero__summary {
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  color: var(--color-text);
  font-weight: 600;
  max-width: 40rem;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.hero__meta span,
.pill,
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 0.85rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(11, 26, 58, 0.08);
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-navy);
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

.hero__text {
  max-width: 42rem;
  color: var(--color-muted);
  font-size: 1.08rem;
}

.hero__actions,
.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.2rem;
  padding: 0.85rem 1.35rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button--primary {
  background: linear-gradient(135deg, var(--color-purple), var(--color-cyan));
  color: #fff;
  box-shadow: 0 16px 32px rgba(109, 77, 242, 0.25);
}

.button--ghost {
  background: rgba(255, 255, 255, 0.82);
  color: var(--color-navy);
  border-color: rgba(11, 26, 58, 0.12);
}

.hero__visual {
  display: grid;
  gap: 1rem;
}

.hero-logo-card,
.feature-card,
.program-preview,
.prose-card,
.stack-card,
.program-card,
.cta-banner,
.logo-strip__item {
  position: relative;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
}

.hero-logo-card {
  padding: 2.25rem;
  min-height: 320px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 18%, rgba(77, 215, 240, 0.18), transparent 22%),
    radial-gradient(circle at 82% 18%, rgba(216, 79, 211, 0.16), transparent 24%),
    radial-gradient(circle at 82% 86%, rgba(77, 215, 240, 0.14), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(244, 248, 253, 0.96));
  border-color: rgba(11, 26, 58, 0.1);
}

.hero-logo-card::after {
  content: "";
  position: absolute;
  inset: auto -8% -28% auto;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(77, 215, 240, 0.28), transparent 70%);
  pointer-events: none;
}

.hero-logo-card__image {
  position: relative;
  z-index: 1;
  width: min(100%, 290px);
  height: auto;
  max-height: 400px;
  object-fit: contain;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.hero-stats article {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 255, 0.96));
  border: 1px solid rgba(11, 26, 58, 0.08);
  box-shadow: var(--shadow-soft);
}

.hero-stats strong {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--color-navy);
  font-size: 1.05rem;
}

.hero-stats span {
  color: var(--color-muted);
  font-size: 0.94rem;
}

.section {
  padding: var(--space-7) 0;
}

.section--soft {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.58));
}

.section-heading {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 2rem;
  max-width: 42rem;
}

.section-heading--split {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  max-width: none;
}

.two-column,
.page-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
  gap: var(--space-5);
  align-items: start;
}

.two-column--intro {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
}

.prose-card,
.stack-card,
.feature-card,
.program-preview,
.program-card,
.cta-banner {
  padding: 1.8rem;
}

.prose-card--highlight {
  padding: 2rem;
}

.prose-card p:last-child,
.feature-card p:last-child,
.stack-card p:last-child {
  margin-bottom: 0;
}

.prose-card,
.stack-card {
  min-height: 100%;
}

.prose-card strong {
  color: var(--color-navy);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.card-grid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
  overflow: hidden;
}

.feature-card::before,
.program-preview::before,
.program-card::before,
.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-teal), var(--color-purple), var(--color-magenta));
}

.feature-card p,
.speaker-card__affiliation,
.stack-card p,
.info-list,
.check-list {
  color: var(--color-muted);
}

.program-preview-grid,
.program-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.program-preview__header,
.program-card__top {
  margin-bottom: 1.25rem;
}

.program-card__date {
  font-weight: 800;
  color: var(--color-purple);
}

.mini-schedule,
.timeline,
.footer-list,
.check-list,
.info-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mini-schedule {
  display: grid;
  gap: 0.9rem;
}

.mini-schedule li,
.timeline__item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.mini-schedule span,
.timeline__time {
  font-weight: 800;
  color: var(--color-navy);
}

.mini-schedule strong {
  font-size: 1rem;
}

.timeline {
  display: grid;
  gap: 1rem;
}

.timeline__content {
  position: relative;
  padding-left: 1rem;
}

.timeline__content::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2rem;
  bottom: 0.2rem;
  width: 2px;
  background: linear-gradient(180deg, var(--color-cyan), var(--color-purple));
  border-radius: 999px;
}

.timeline__content p {
  margin-top: 0.25rem;
  color: var(--color-muted);
}

.logo-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.logo-strip__item {
  display: grid;
  place-items: center;
  gap: 0.9rem;
  min-height: 210px;
  text-align: center;
  padding: 1.5rem;
}

.logo-strip__link {
  display: grid;
  place-items: center;
  gap: 0.9rem;
  width: 100%;
  text-decoration: none;
}

.logo-strip__item img {
  width: auto;
  max-width: min(100%, 240px);
  max-height: 76px;
  object-fit: contain;
}

.logo-strip__item p {
  margin: 0;
  font-weight: 700;
  color: var(--color-muted);
}

.logo-strip__link:hover p,
.logo-strip__link:focus-visible p {
  color: var(--color-purple);
}

.logo-strip__link:focus-visible {
  outline: 2px solid rgba(109, 77, 242, 0.35);
  outline-offset: 6px;
  border-radius: 1rem;
}

.venue-map {
  display: grid;
  gap: 1.5rem;
}

.venue-map__card {
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-card);
}

.venue-map__frame {
  display: block;
  width: 100%;
  min-height: 460px;
  border: 0;
}

.venue-map__actions {
  display: flex;
  justify-content: flex-start;
}

.registration-form {
  display: grid;
  gap: 1.5rem;
}

.registration-form__card {
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-card);
}

.registration-form__frame {
  display: block;
  width: 100%;
  min-height: 1180px;
  border: 0;
}

.registration-form__actions {
  display: flex;
  justify-content: flex-start;
}

.cta-banner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.5rem;
  overflow: hidden;
}

.cta-banner h2 {
  margin-bottom: 0.6rem;
}

.site-footer {
  padding: var(--space-7) 0 3rem;
  color: var(--color-text);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) repeat(2, minmax(0, 0.8fr));
  gap: var(--space-5);
  padding-top: 2rem;
  border-top: 1px solid rgba(11, 26, 58, 0.08);
}

.site-footer h2 {
  margin-bottom: 1rem;
  font-size: 1rem;
}

.site-footer__tagline {
  max-width: 30rem;
  color: var(--color-muted);
}

.footer-list li + li,
.check-list li + li,
.info-list li + li {
  margin-top: 0.75rem;
}

.text-link {
  font-weight: 800;
  color: var(--color-purple);
  text-decoration: none;
}

.text-link:hover,
.text-link:focus-visible,
.footer-list a:hover,
.footer-list a:focus-visible {
  text-decoration: underline;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.sponsor-block {
  margin-top: 2rem;
  padding: 1.6rem 0 0;
}

@media (max-width: 1024px) {
  .hero__inner,
  .two-column,
  .page-grid,
  .section-heading--split,
  .cta-banner,
  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .hero-stats,
  .card-grid--three {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .program-preview-grid,
  .program-grid,
  .logo-strip {
    grid-template-columns: 1fr;
  }

  .section-heading--split {
    align-items: start;
  }
}

@media (max-width: 720px) {
  .site-header__inner {
    align-items: start;
    flex-direction: column;
  }

  .brand {
    padding: 0;
  }

  .brand__image {
    max-height: 3.9rem;
  }

  .hero__inner,
  .card-grid,
  .hero-stats,
  .card-grid--three {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 4.2rem 0;
  }

  .venue-map__frame {
    min-height: 360px;
  }

  .registration-form__frame {
    min-height: 1320px;
  }

  .hero__meta,
  .hero__actions,
  .cta-banner__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .mini-schedule li,
  .timeline__item {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .timeline__content {
    padding-left: 0;
  }

  .timeline__content::before {
    display: none;
  }

  h1 {
    font-size: clamp(2.5rem, 16vw, 4rem);
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}