:root {
  --bg: #ffffff;
  --surface: #ffffff;
  --surface-alt: #f5f8ff;
  --text: #0b1f44;
  --muted: #3f5580;
  --accent: #123a7a;
  --accent-strong: #0b2a57;
  --border: #cfdbef;
  --shadow: 0 12px 32px rgba(11, 31, 68, 0.08);
  --radius: 18px;
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(18, 58, 122, 0.1), transparent 30%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  line-height: 1.6;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(207, 219, 239, 0.9);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}

.site-logo,
.site-nav a {
  color: inherit;
  text-decoration: none;
}

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

.site-nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.language-switcher select {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  padding: 0.55rem 0.9rem;
}

.hero {
  padding: 6rem 0 4rem;
}

.hero-inner {
  max-width: 720px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  color: var(--accent-strong);
}

h1,
h2,
h3 {
  line-height: 1.15;
  margin-top: 0;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 1rem;
}

.hero-copy {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 60ch;
}

.button {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.9rem 1.2rem;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  text-decoration: none;
  font-weight: 600;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background: rgba(236, 228, 215, 0.55);
}

.card-grid,
.event-list {
  display: grid;
  gap: 1rem;
}

.card-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.event-list {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card,
.event-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

a.card {
  color: inherit;
  text-decoration: none;
  display: block;
}

.event-meta {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-strong);
}

.event-details {
  display: grid;
  gap: 0.5rem;
  margin: 1rem 0;
}

.event-details div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.45rem;
}

.event-details dt {
  color: var(--muted);
  font-weight: 600;
}

.event-details dd {
  margin: 0;
  text-align: right;
}

.text-link {
  color: var(--accent);
  font-weight: 700;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.2em;
}

.site-footer {
  padding: 2rem 0 3rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 760px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 1rem 0;
  }

  .hero {
    padding-top: 4rem;
  }
}