* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top, rgba(60, 80, 140, 0.25), transparent 35%),
    linear-gradient(180deg, #070b14 0%, #0b1020 100%);
  color: #f4f7fb;
  line-height: 1.6;
}

a {
  color: #8ed0ff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1100px, calc(100% - 32px));
  margin: 0 auto;
}

.narrow {
  width: min(760px, 100%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(6, 10, 18, 0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(142, 208, 255, 0.18);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 68px;
  gap: 18px;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.hero {
  padding: 96px 0 72px;
}

.hero-inner {
  text-align: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: #8ed0ff;
  font-size: 0.85rem;
  margin-bottom: 8px;
}

h1 {
  font-size: clamp(2.5rem, 8vw, 5.25rem);
  line-height: 1.02;
  margin: 0 0 16px;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  margin-top: 0;
  margin-bottom: 12px;
}

.hero-copy,
.section-intro {
  max-width: 720px;
  margin: 0 auto 24px;
  color: #c4cfdd;
  font-size: 1.1rem;
}

.button {
  display: inline-block;
  padding: 14px 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, #6fd6ff, #6b8dff);
  color: #07111f;
  font-weight: 700;
  text-decoration: none;
}

.button:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.section {
  padding: 72px 0;
}

.section.alt {
  background: rgba(255, 255, 255, 0.03);
}

.events-list {
  display: grid;
  gap: 16px;
}

.event-card {
  padding: 18px;
  border: 1px solid rgba(142, 208, 255, 0.18);
  border-radius: 16px;
  background: rgba(9, 15, 27, 0.9);
}

.event-date {
  color: #8ed0ff;
  font-weight: 700;
  margin-bottom: 6px;
}

.event-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.event-meta {
  color: #c4cfdd;
}

.loading,
.error,
.empty {
  color: #c4cfdd;
}

.video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 18px;
  border: 1px solid rgba(142, 208, 255, 0.18);
}

.video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.site-footer {
  padding: 28px 0 42px;
  color: #9aa8bb;
  text-align: center;
}

@media (max-width: 760px) {
  .site-header .container {
    flex-direction: column;
    justify-content: center;
    padding: 10px 0;
  }

  .nav {
    justify-content: center;
  }

  .hero {
    padding-top: 72px;
  }
}