:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-soft: #eef2f8;
  --text: #172033;
  --muted: #647084;
  --line: #dbe2ee;
  --accent: #1f6feb;
  --accent-dark: #174ea6;
  --accent-soft: #e8f1ff;
  --shadow: 0 18px 48px rgba(23, 32, 51, 0.08);
  --radius: 18px;
  --max: 1060px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(31,111,235,.12), transparent 36rem),
    linear-gradient(180deg, #fff 0%, var(--bg) 46%);
  line-height: 1.6;
}

a { color: var(--accent-dark); text-decoration: none; }
a:hover { color: var(--accent); text-decoration: underline; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 12px;
  background: var(--text);
  color: #fff;
  padding: .75rem 1rem;
  border-radius: 999px;
  z-index: 99;
}
.skip-link:focus { left: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(255,255,255,.78);
  border-bottom: 1px solid rgba(219,226,238,.75);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .9rem 1.25rem;
  gap: 1rem;
}

.brand {
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.03em;
}

.nav-links {
  display: flex;
  gap: .45rem;
  align-items: center;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  padding: .45rem .75rem;
  border-radius: 999px;
  font-size: .96rem;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent-dark);
  text-decoration: none;
}


.nav-menu { position: relative; }
.nav-home { justify-content: flex-end; }
.nav-menu-button {
  font: inherit;
  color: var(--muted);
  background: transparent;
  border: 0;
  padding: .45rem .75rem;
  border-radius: 999px;
  cursor: pointer;
}
.nav-menu-button:hover,
.nav-menu:focus-within .nav-menu-button,
.nav-menu:hover .nav-menu-button {
  background: var(--accent-soft);
  color: var(--accent-dark);
}
.nav-menu-content {
  position: absolute;
  right: 0;
  top: 100%;
  min-width: 180px;
  padding: .4rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 18px 45px rgba(23,32,51,.12);
  display: none;
  z-index: 30;
}
.nav-menu:hover .nav-menu-content,
.nav-menu:focus-within .nav-menu-content { display: grid; }
.nav-menu-content a {
  border-radius: 10px;
  padding: .55rem .65rem;
  white-space: nowrap;
}
.compact-hero { align-items: start; }
.affiliation-list {
  list-style: none;
  padding: 0;
  margin: .15rem 0 0;
  color: var(--muted);
}
.affiliation-list li {
  margin: .15rem 0;
  font-size: 1rem;
}
.affiliation-list a { font-weight: 500; }
.home-text {
  max-width: 850px;
  padding-top: 1.15rem;
  border-top: 1px solid var(--line);
}
.hero-text { margin-top: 1.15rem; }
.home-text p { font-size: 1.02rem; color: #344054; margin: 0 0 .85rem; }

main { max-width: var(--max); margin: 0 auto; padding: 1.6rem 1.25rem 3rem; }

.hero {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 1.5rem;
  align-items: start;
  min-height: auto;
}

.eyebrow {
  color: var(--accent-dark);
  font-weight: 650;
  margin: 0 0 .35rem;
  letter-spacing: .01em;
}

h1, h2, h3 { line-height: 1.2; letter-spacing: -.025em; margin: 0 0 .85rem; }
h1 { font-size: clamp(1.9rem, 3.7vw, 3rem); font-weight: 700; margin-bottom: .45rem; }
h2 { font-size: clamp(1.35rem, 2.3vw, 1.9rem); font-weight: 650; }
h3 { font-size: 1.08rem; letter-spacing: -.01em; font-weight: 650; }

.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
  color: #344054;
  max-width: 66ch;
}

.hero-card,
.card,
.notice {
  background: rgba(255,255,255,.9);
  border: 1px solid rgba(219,226,238,.95);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card { padding: .8rem; max-width: 320px; justify-self: end; }
.portrait {
  width: 100%;
  display: block;
  border-radius: 18px;
  aspect-ratio: 1 / 1.02;
  object-fit: cover;
}

.contact-card { margin-top: .8rem; padding: .9rem; background: var(--surface-soft); border-radius: 16px; }
.contact-card p { margin: .25rem 0; color: var(--muted); }
.contact-card strong { color: var(--text); }

.actions { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1.5rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .8rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-weight: 700;
  color: var(--text);
  background: #fff;
}
.button.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.button:hover { text-decoration: none; transform: translateY(-1px); }

.section { margin-top: 1.6rem; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.card { padding: 1.35rem; box-shadow: 0 16px 50px rgba(23,32,51,.07); }
.card p { color: var(--muted); margin-bottom: 0; }

.notice { padding: 1rem 1.15rem; background: #fff8e8; border-color: #f5ddb0; box-shadow: none; }
.notice strong { color: #7a4a00; }

.content-page { max-width: 820px; }
.content-page header { margin-bottom: 2rem; }
.content-page ul { padding-left: 1.2rem; }
.content-page li { margin: .85rem 0; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; margin: 1rem 0; }
.muted { color: var(--muted); }


@media (max-width: 780px) {
  .nav { align-items: flex-start; flex-direction: column; }
  .nav-menu-content { left: 0; right: auto; }
  .hero { grid-template-columns: 1fr; padding-top: 1rem; }
  .hero-card { max-width: 420px; justify-self: start; }
  .grid { grid-template-columns: 1fr; }
}