:root {
  --bg: #eef6ff;
  --surface: #ffffff;
  --surface-alt: #eef8ff;
  --text: #162235;
  --muted: #46607e;
  --accent: #1f78d1;
  --accent-soft: #2d92ef;
  --line: #c7dbf3;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 0% 0%, #ddebff 0%, transparent 38%),
    radial-gradient(circle at 100% 20%, #d8f1ff 0%, transparent 40%),
    var(--bg);
  line-height: 1.6;
}

h1,
h2,
h3 {
  font-family: "Palatino Linotype", Palatino, "Book Antiqua", serif;
  line-height: 1.2;
  margin-top: 0;
  color: #1a2430;
}

a {
  color: var(--accent);
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--line);
  background: color-mix(in hsl, var(--surface) 84%, #e8f3ff 16%);
  backdrop-filter: blur(6px);
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 0;
}

.brand {
  text-decoration: none;
  font-family: "Palatino Linotype", Palatino, "Book Antiqua", serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

.menu {
  list-style: none;
  display: flex;
  gap: 1rem;
  padding: 0;
  margin: 0;
}

.menu a {
  text-decoration: none;
  color: var(--text);
  font-size: 0.95rem;
}

.menu a:hover {
  color: var(--accent);
}

.hero {
  padding: 4rem 0 3.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.3rem);
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.08rem;
  max-width: 60ch;
  color: #2f3c49;
}

.hero-photo {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 0.7rem;
  box-shadow: 0 18px 32px rgba(24, 84, 156, 0.18);
}

.hero-photo img {
  display: block;
  width: 100%;
  height: auto;
}

.actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1.4rem;
}

.btn {
  display: inline-block;
  text-decoration: none;
  background: var(--accent);
  color: #fff;
  padding: 0.65rem 1rem;
  border-radius: 3px;
  font-size: 0.95rem;
}

.btn:hover {
  background: var(--accent-soft);
}

.btn-light {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-light:hover {
  background: #e8f3ff;
}

.section {
  padding: 3rem 0;
}

.section-alt {
  background: linear-gradient(180deg, #e8f4ff 0%, var(--surface-alt) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-note {
  margin-top: -0.3rem;
  color: var(--muted);
}

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

.timeline-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid #2a8ae2;
  padding: 1rem 1.2rem;
}

.timeline-item h3 {
  margin-bottom: 0.3rem;
}

.meta {
  color: var(--muted);
  font-size: 0.92rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

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

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1rem 1.1rem;
}

.card:hover {
  border-color: #87bdf2;
  box-shadow: 0 8px 18px rgba(31, 120, 209, 0.14);
}

.card h3 {
  margin-bottom: 0.4rem;
}

.tag-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag-list li {
  border: 1px solid var(--line);
  background: #f2f8ff;
  padding: 0.4rem 0.6rem;
  font-size: 0.9rem;
}

.site-footer {
  padding: 2.5rem 0 3.3rem;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, #f2f8ff 0%, #e7f2ff 100%);
}

.site-footer p {
  margin: 0.35rem 0;
}

@media (max-width: 960px) {
  .hero-grid,
  .split,
  .grid-cards {
    grid-template-columns: 1fr;
  }

  .hero-photo {
    max-width: 460px;
  }

  .menu {
    gap: 0.6rem;
    flex-wrap: wrap;
    justify-content: flex-end;
  }
}

@media (max-width: 620px) {
  .hero {
    padding-top: 2.5rem;
  }

  .menu a {
    font-size: 0.88rem;
  }
}