@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg: #ffffff;
  --surface: #f6f8fa;
  --surface-strong: #eef3f6;
  --text: #222831;
  --muted: #5b6572;
  --accent: #5f7789;
  --accent-soft: #d9e4ea;
  --border: #e2e8ee;
  --shadow-sm: 0 6px 18px rgba(34, 40, 49, 0.06);
  --shadow-md: 0 14px 32px rgba(34, 40, 49, 0.1);
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 16px;
  --section-space: clamp(3.5rem, 7vw, 5.5rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', 'Segoe UI', Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.72;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }

.container { width: min(1120px, 92%); margin-inline: auto; }
.narrow { width: min(780px, 92%); margin-inline: auto; }
.section { padding: var(--section-space) 0; }
.surface { background: linear-gradient(180deg, var(--surface), #fff); }
.page-hero { padding-bottom: calc(var(--section-space) * .5); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}
.header-wrap {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.logo { display: inline-flex; align-items: center; gap: .75rem; font-weight: 600; }
.logo-mark {
  inline-size: 2.2rem;
  block-size: 2.2rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  font-size: .9rem;
  font-weight: 700;
}
.logo-text { letter-spacing: .01em; }

.menu-toggle {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius-sm);
  width: 44px;
  height: 40px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  cursor: pointer;
}
.menu-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 4px;
  transition: transform .2s ease;
}

.site-nav {
  position: absolute;
  top: 78px;
  left: 0;
  right: 0;
  display: none;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.site-nav.open { display: block; }
.site-nav ul {
  list-style: none;
  margin: 0;
  padding: .9rem 4% 1rem;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}
.site-nav a {
  display: inline-block;
  color: var(--muted);
  font-weight: 500;
  padding: .45rem .1rem;
  position: relative;
}
.site-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: .12rem;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width .2s ease;
}
.site-nav a:hover,
.site-nav a[aria-current='page'] { color: var(--text); }
.site-nav a:hover::after,
.site-nav a[aria-current='page']::after { width: 100%; }

h1, h2, h3 { color: var(--text); line-height: 1.25; margin-top: 0; }
h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 1rem; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.4rem, 2.8vw, 1.9rem); margin-bottom: .95rem; letter-spacing: -0.01em; }
h3 { font-size: 1.08rem; margin-bottom: .65rem; }
p { margin: 0 0 1rem; color: var(--muted); max-width: 72ch; }

.eyebrow {
  margin-bottom: .7rem;
  text-transform: uppercase;
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .09em;
  color: var(--accent);
}
.lead { font-size: clamp(1.05rem, 1.9vw, 1.17rem); }

.hero {
  background: radial-gradient(70% 120% at 100% 0%, var(--surface-strong) 0%, #fff 52%);
}
.hero-grid {
  display: grid;
  gap: 1.25rem;
  align-items: stretch;
}
.hero-panel {
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1.15rem 1.2rem;
  box-shadow: var(--shadow-sm);
}
.panel-label {
  font-size: .75rem;
  color: var(--accent);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: .08em;
}

.cards { display: grid; gap: 1rem; }
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #fff;
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .25s ease;
}
.publication-card:hover,
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.meta { font-size: .88rem; margin-bottom: .35rem; }

.section-head {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .8rem;
}
.pill-list {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
}
.pill-list li {
  padding: .46rem .82rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  font-size: .9rem;
}

.split { display: grid; gap: 1rem; }
.contact-form {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: #fff;
  padding: 1.2rem;
  box-shadow: var(--shadow-sm);
}
.contact-card { height: fit-content; }
.contact-form label {
  font-weight: 600;
  color: var(--text);
  margin-top: .85rem;
  margin-bottom: .3rem;
  display: block;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #d8e1e8;
  background: #fff;
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: .7rem .82rem;
  font: inherit;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: .6rem;
  padding: .75rem 1.15rem;
  border-radius: 11px;
  border: 1px solid transparent;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover { background: #506878; transform: translateY(-1px); box-shadow: 0 10px 18px rgba(95,119,137,.3); }

.text-link {
  color: var(--accent);
  font-weight: 600;
}
.text-link:hover { text-decoration: underline; text-underline-offset: 3px; }

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid #8ba5b7;
  outline-offset: 2px;
}

.flow > * + * { margin-top: .45rem; }
.legal h2 { margin-top: 1.35rem; }
.note, .form-note { font-size: .9rem; }

.site-footer {
  border-top: 1px solid var(--border);
  background: #fff;
  margin-top: 1rem;
}
.footer-wrap {
  padding: 1.3rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.footer-wrap p { margin: 0; font-size: .92rem; }
.footer-wrap nav { display: flex; flex-wrap: wrap; gap: 1rem; }
.footer-wrap nav a { color: var(--accent); font-size: .92rem; }
.footer-wrap nav a:hover { text-decoration: underline; text-underline-offset: 3px; }

@media (min-width: 820px) {
  .menu-toggle { display: none; }
  .site-nav {
    position: static;
    display: block;
    border: 0;
    box-shadow: none;
    background: transparent;
  }
  .site-nav ul {
    padding: 0;
    flex-direction: row;
    align-items: center;
    gap: 1.05rem;
  }
  .three-col { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero-grid { grid-template-columns: 1.5fr .95fr; gap: 2rem; }
  .split { grid-template-columns: 0.95fr 1.2fr; gap: 1.25rem; align-items: start; }
  .footer-wrap { flex-direction: row; justify-content: space-between; align-items: center; }
}