:root {
  --night: #241623;
  --dusk: #693e52;
  --dawn: #ea6e44;
  --day: #f3a560;
  --blue: #5a8eb1;
  --bg: #fbf5f0;
  --surface: #ffffff;
  --text: #241623;
  --text-muted: #6a5560;
  --border: #e9dcd4;
  --radius: 14px;
  --max-width: 1120px;
  --shadow: 0 4px 20px rgba(42, 26, 35, 0.08);
  --font-display: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

h1, h2, h3,
.logo, .btn, .nav-links a,
.eyebrow, .eyebrow-dark,
.badge, .stat-num, .filter-btn,
.team-card .role {
  font-family: var(--font-display);
}

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

a { color: inherit; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-chip {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--dawn);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-chip img {
  height: 30px;
  width: auto;
  filter: brightness(0) invert(1);
  display: block;
}

.logo-word {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--dawn);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  border-bottom-color: var(--dawn);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--night);
  margin: 5px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }
  .nav-links.open { max-height: 340px; }
  .nav-links li { border-top: 1px solid var(--border); }
  .nav-links a { display: block; padding: 14px 24px; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(120deg, var(--night) 0%, var(--dusk) 45%, var(--dawn) 85%, var(--day) 100%);
  color: #fff;
  padding: 96px 0 110px;
}

.hero-wave {
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  line-height: 0;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  font-weight: 600;
  opacity: 0.85;
  margin: 0 0 18px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.12;
  margin: 0 0 20px;
  max-width: 780px;
}

.hero p {
  font-size: 1.1rem;
  max-width: 640px;
  opacity: 0.92;
  margin: 0 0 34px;
}

.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  border: 1.5px solid transparent;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: #fff;
  color: var(--night);
}

.btn-primary:hover { box-shadow: 0 6px 18px rgba(0,0,0,0.18); }

.btn-secondary {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.55);
}

.btn-secondary:hover { background: rgba(255,255,255,0.12); }

/* ---------- Sections ---------- */
section { padding: 76px 0; }

.section-head {
  max-width: 680px;
  margin: 0 0 44px;
}

.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.eyebrow-dark {
  color: var(--dawn);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  margin: 0 0 10px;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  margin: 0 0 14px;
  line-height: 1.2;
}

.lede {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin: 0;
}

.about-section {
  position: relative;
  background-image:
    linear-gradient(to bottom, rgba(251, 245, 240, 0.3) 0%, rgba(251, 245, 240, 0.6) 55%, var(--bg) 100%),
    url('../assets/texture-sand-ripples.jpg');
  background-size: cover, cover;
  background-position: center, center;
  background-repeat: no-repeat, no-repeat;
}

.about-section p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 800px;
}

/* ---------- Cards / Grid ---------- */
.grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
}

.card-top-bar {
  width: 40px;
  height: 4px;
  border-radius: 4px;
  margin-bottom: 18px;
  background: var(--dawn);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.08rem;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.research-grid .card:nth-child(1) .card-top-bar { background: var(--dawn); }
.research-grid .card:nth-child(2) .card-top-bar { background: var(--dusk); }
.research-grid .card:nth-child(3) .card-top-bar { background: var(--day); }
.research-grid .card:nth-child(4) .card-top-bar { background: var(--blue); }
.research-grid .card:nth-child(5) .card-top-bar { background: var(--dawn); }

/* ---------- Capabilities (two-column) ---------- */
.capabilities {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cap-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

@media (max-width: 700px) {
  .cap-cols { grid-template-columns: 1fr; }
}

.cap-cols ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.cap-cols li {
  padding: 10px 0 10px 26px;
  position: relative;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.cap-cols li:last-child { border-bottom: none; }

.cap-cols li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--dawn);
}

/* ---------- Stats ---------- */
.stats {
  background: linear-gradient(120deg, var(--night), var(--dusk));
  color: #fff;
}

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

.stat-block .stat-num {
  font-size: 2.1rem;
  font-weight: 700;
  margin: 0 0 6px;
  background: linear-gradient(90deg, var(--day), var(--dawn));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stat-block p { color: rgba(255,255,255,0.82); margin: 0; font-size: 0.95rem; }

/* ---------- Contact / CTA ---------- */
.contact-band {
  background: var(--surface);
}

.contact-card {
  background: var(--night);
  color: #fff;
  border-radius: 20px;
  padding: 48px;
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
}

.contact-card h2 { margin: 0 0 8px; }
.contact-card p { margin: 0; color: rgba(255,255,255,0.78); }
.contact-card a.btn-primary { white-space: nowrap; }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.footer-links { display: flex; gap: 20px; list-style: none; padding: 0; margin: 0; }
.footer-links a { text-decoration: none; color: var(--text-muted); }
.footer-links a:hover { color: var(--dawn); }

/* ---------- Page header (inner pages) ---------- */
.page-hero {
  background: linear-gradient(120deg, var(--night), var(--dusk));
  color: #fff;
  padding: 70px 0 60px;
}

.page-hero h1 { margin: 0 0 12px; font-size: clamp(2rem, 4vw, 2.6rem); }
.page-hero p { margin: 0; max-width: 620px; color: rgba(255,255,255,0.85); }

/* ---------- Team ---------- */
.team-group-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 20px;
}

section > .wrap > .team-group-title:not(:first-child) {
  margin-top: 52px;
}

.team-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.team-card {
  text-align: left;
}

.avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--dusk), var(--dawn));
  margin-bottom: 16px;
  font-size: 1.1rem;
  overflow: hidden;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.team-card .role {
  color: var(--dawn);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 10px;
}

.team-card a.email {
  display: inline-block;
  margin-top: 14px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--night);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}

.team-card.placeholder {
  border: 1.5px dashed var(--border);
  box-shadow: none;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  min-height: 200px;
  color: var(--text-muted);
}

.team-card.placeholder .avatar {
  background: var(--bg);
  border: 1.5px dashed var(--border);
  color: var(--text-muted);
}

/* ---------- Publications / News tiles ---------- */
.filter-row {
  display: flex;
  gap: 10px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.filter-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.15s ease;
}

.filter-btn:hover { border-color: var(--dawn); color: var(--night); }

.filter-btn.active {
  background: var(--night);
  border-color: var(--night);
  color: #fff;
}

.pub-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.pub-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.badge {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 999px;
  color: #fff;
}

.badge.publication { background: var(--dusk); }
.badge.news { background: var(--dawn); }

.pub-card h3 { font-size: 1.05rem; margin: 0; }

.pub-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

.pub-card p.blurb {
  color: var(--text-muted);
  font-size: 0.93rem;
  margin: 0;
  flex-grow: 1;
}

.pub-card a.read-more {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--night);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  align-self: flex-start;
}

.pub-card a.read-more:hover { border-color: var(--dawn); }

.pub-card.placeholder {
  border: 1.5px dashed var(--border);
  box-shadow: none;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-muted);
  min-height: 220px;
}

.pub-card p.blurb a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- Featured publication ---------- */
.pub-card.featured {
  background: linear-gradient(120deg, var(--dusk), var(--dawn));
  color: #fff;
  padding: 36px;
  margin-bottom: 12px;
}

.pub-card.featured .badge { background: rgba(255, 255, 255, 0.25); }
.pub-card.featured h3 { font-size: 1.3rem; }
.pub-card.featured .pub-meta { color: rgba(255, 255, 255, 0.85); }
.pub-card.featured p.blurb { color: rgba(255, 255, 255, 0.92); }

.pub-card.featured a.read-more {
  color: #fff;
  border-bottom-color: rgba(255, 255, 255, 0.5);
}

.pub-card.featured a.read-more:hover { border-bottom-color: #fff; }

/* ---------- Publication / news cover images ---------- */
.pub-card-media {
  position: relative;
  margin: -26px -26px 0;
}

.pub-card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: center;
  display: block;
  border-radius: var(--radius) var(--radius) 0 0;
}

.pub-card-image.obj-top { object-position: top; }

.card-tag {
  position: absolute;
  bottom: 10px;
  left: 10px;
  background: rgba(36, 22, 35, 0.78);
  color: #fff;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 999px;
}