:root {
  --background: #ffffff;
  --surface: #f4f4f4;
  --text: #171717;
  --muted: #666666;
  --accent: #555555;
  --border: #dedede;
  --max-width: 1440px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.site-header,
.navbar {
  min-height: 76px;
  width: 100%;
  padding: 18px 4%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid #eeeeee;
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand,
.logo {
  flex-shrink: 0;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 2.5px;
  white-space: nowrap;
}

.brand span,
.logo span {
  color: #777777;
}

.main-nav,
#nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
}

.main-nav a,
#nav-links a {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15px;
  padding: 9px 11px;
  border-radius: 4px;
  white-space: nowrap;
  transition: background 0.2s ease;
}

.main-nav a:hover,
#nav-links a:hover {
  background: #eeeeee;
}

.menu-toggle,
#menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-size: 24px;
}

.hero {
  min-height: 610px;
  padding: 100px 8% 70px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  background: #f5f5f5;
  overflow: hidden;
}

.hero-content {
  width: 100%;
  max-width: 900px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.3px;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 auto 22px;
  font-size: clamp(38px, 6vw, 76px);
  line-height: 1.06;
  letter-spacing: -3px;
  font-weight: 600;
}

.hero-description {
  max-width: 650px;
  margin: 0 auto;
  color: #555555;
  font-size: 17px;
  line-height: 1.8;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 44px;
  padding: 12px 23px;
  border: 1px solid var(--text);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  transition: transform 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-dark {
  background: var(--text);
  color: white;
}

.button-dark:hover {
  background: #333333;
}

.button-outline {
  background: transparent;
  color: var(--text);
}

.button-outline:hover {
  background: white;
}

.hero-note {
  position: absolute;
  bottom: 24px;
  font-size: 10px;
  color: #777777;
  letter-spacing: 2px;
}

.intro-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 95px 6%;
  text-align: center;
}

.intro-section h2,
.statement-section h2 {
  margin: 0 0 18px;
  font-size: clamp(32px, 4vw, 50px);
  line-height: 1.15;
  letter-spacing: -1.5px;
  font-weight: 600;
}

.section-description {
  max-width: 650px;
  margin: 0 auto 40px;
  color: var(--muted);
}

.division-grid,
.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 35px;
  text-align: left;
}

.division-card {
  min-height: 340px;
  padding: 40px;
  display: flex;
  align-items: flex-end;
  border-radius: 3px;
  background: #f1f1f1;
}

.pharmacology-card {
  background: #eeeeee;
}

.ai-card {
  background: #e5e5e5;
}

.division-content {
  max-width: 470px;
}

.division-card h3 {
  margin: 0 0 14px;
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.7px;
}

.division-card p:not(.eyebrow) {
  color: #555555;
  font-size: 14px;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 25px;
}

.card-actions a,
.text-link,
.card-link {
  font-size: 12px;
  font-weight: 700;
  border-bottom: 1px solid #888888;
  padding-bottom: 4px;
}

.card-actions a:hover,
.text-link:hover,
.card-link:hover {
  border-color: black;
}

.statement-section {
  padding: 90px 8%;
  text-align: center;
  background: #f5f5f5;
}

.statement-section > p:not(.eyebrow) {
  max-width: 600px;
  margin: 0 auto 26px;
  color: var(--muted);
}

.site-footer {
  padding: 36px 6%;
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer-brand {
  display: inline-block;
}

.site-footer p {
  color: var(--muted);
  font-size: 12px;
}

/* Shared styles for individual pages */

.content-section {
  max-width: 1100px;
  min-height: 55vh;
  margin: 0 auto;
  padding: 70px 6%;
}

.content-section h1 {
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.15;
  letter-spacing: -1.5px;
}

.content-section h2 {
  margin-top: 36px;
  font-size: 27px;
}

.content-section p {
  max-width: 850px;
  color: var(--muted);
}

.card {
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: white;
}

.card h2,
.card h3 {
  margin-top: 0;
}

.card-link {
  display: inline-block;
  margin-top: 12px;
}

.profile-card {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 24px;
  border: 1px solid var(--border);
}

.profile-placeholder {
  width: 90px;
  height: 90px;
  flex: 0 0 90px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #eeeeee;
  font-size: 24px;
  font-weight: 700;
}

/* Responsive navigation and layout */

@media (max-width: 1100px) {
  .site-header,
  .navbar {
    gap: 12px;
    padding-left: 3%;
    padding-right: 3%;
  }

  .brand,
  .logo {
    font-size: 16px;
    letter-spacing: 1.5px;
  }

  .main-nav,
  #nav-links {
    gap: 0;
  }

  .main-nav a,
  #nav-links a {
    font-size: 11px;
    padding: 8px;
  }
}

@media (max-width: 850px) {
  .site-header,
  .navbar {
    position: sticky;
    flex-wrap: wrap;
  }

  .menu-toggle,
  #menu-toggle {
    display: block;
    margin-left: auto;
  }

  .main-nav,
  #nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 10px 0;
  }

  .main-nav.open,
  #nav-links.open {
    display: flex;
  }

  .main-nav a,
  #nav-links a {
    padding: 12px;
    font-size: 13px;
  }

  .hero {
    min-height: 540px;
    padding: 80px 6%;
  }

  .hero h1 {
    letter-spacing: -1.5px;
  }

  .division-grid,
  .grid {
    grid-template-columns: 1fr;
  }

  .division-card {
    min-height: 300px;
    padding: 28px;
  }

  .intro-section {
    padding: 65px 6%;
  }

  .statement-section {
    padding: 65px 6%;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero h1 {
    font-size: 40px;
  }

  .hero-description {
    font-size: 15px;
  }

  .card-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .profile-card {
    flex-direction: column;
  }
}