/* ============================================================
   Avexis Europe Ltd — Corporate Site
   Editorial corporate aesthetic
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,300;9..144,400;9..144,500;9..144,600&family=Geist:wght@300;400;500;600&display=swap');

:root {
  --color-bg: #F5F1EA;
  --color-bg-soft: #FAF7F2;
  --color-ink: #0A1628;
  --color-ink-soft: #1F2937;
  --color-muted: #6B6660;
  --color-rule: #D9D2C7;
  --color-accent: #8B6F3F;
  --color-accent-soft: #A88B5C;

  --font-display: 'Fraunces', 'Cormorant Garamond', 'Times New Roman', serif;
  --font-body: 'Geist', 'Söhne', system-ui, -apple-system, sans-serif;

  --max-width: 1200px;
  --reading-width: 65ch;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 17px;
}

body {
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Reveal animation ===== */

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  animation: reveal 0.8s ease-out backwards;
}

.reveal-1 { animation-delay: 0.05s; }
.reveal-2 { animation-delay: 0.15s; }
.reveal-3 { animation-delay: 0.25s; }
.reveal-4 { animation-delay: 0.35s; }
.reveal-5 { animation-delay: 0.45s; }

/* ===== Navigation ===== */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 241, 234, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-rule);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-brand {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  color: var(--color-ink);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

.nav-brand-mark {
  font-size: 0.7rem;
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--color-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 2.25rem;
  list-style: none;
}

.nav-links a {
  color: var(--color-ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  transition: color 0.2s ease;
  position: relative;
}

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

.nav-links a.active {
  color: var(--color-accent);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-ink);
  font-size: 1.25rem;
}

/* ===== Main containers ===== */

main {
  flex: 1;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.hero {
  padding: var(--space-xl) 2rem var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-clean {
  padding-top: calc(var(--space-xl) + 1rem);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-rule);
}

.hero-clean .eyebrow {
  margin-bottom: 2rem;
}

.hero-title-large {
  font-size: clamp(2.8rem, 6.5vw, 5.5rem);
  max-width: 14ch;
  margin-bottom: 2.5rem;
}

.hero-lead-large {
  font-size: clamp(1.2rem, 1.9vw, 1.5rem);
  max-width: 42ch;
}

.section {
  padding: var(--space-lg) 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-tight {
  padding: var(--space-md) 2rem var(--space-lg);
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ===== Typography ===== */

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
  display: block;
}

h1 {
  font-family: var(--font-display);
  font-weight: 400;
  font-variation-settings: 'opsz' 96, 'SOFT' 30;
  font-size: clamp(2.4rem, 5.5vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin-bottom: 1.75rem;
  max-width: 18ch;
}

h1 em {
  font-style: italic;
  color: var(--color-accent);
  font-weight: 300;
}

h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-variation-settings: 'opsz' 60;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--color-ink);
  margin-bottom: 1.5rem;
  max-width: 20ch;
}

h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.3rem;
  line-height: 1.3;
  color: var(--color-ink);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

h4 {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
}

.lead {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.15rem, 1.8vw, 1.4rem);
  line-height: 1.5;
  color: var(--color-ink-soft);
  margin-bottom: 2.5rem;
  max-width: 50ch;
  letter-spacing: -0.005em;
}

p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-ink-soft);
  margin-bottom: 1.25rem;
  max-width: var(--reading-width);
}

p.wide {
  max-width: none;
}

ul.styled {
  list-style: none;
  margin: 1.5rem 0;
  max-width: var(--reading-width);
}

ul.styled li {
  padding: 0.85rem 0 0.85rem 1.5rem;
  border-bottom: 1px solid var(--color-rule);
  position: relative;
  font-size: 0.98rem;
  color: var(--color-ink-soft);
}

ul.styled li:first-child {
  border-top: 1px solid var(--color-rule);
}

ul.styled li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 1.3rem;
  width: 6px;
  height: 1px;
  background: var(--color-accent);
}

ul.styled li strong {
  color: var(--color-ink);
  font-weight: 500;
}

.rule {
  border: none;
  height: 1px;
  background: var(--color-rule);
  margin: var(--space-lg) 0;
}

/* ===== Page hero with side meta ===== */

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 4rem;
  align-items: end;
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-rule);
}

.hero-meta {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.7;
}

.hero-meta dt {
  font-weight: 500;
  color: var(--color-ink);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  margin-top: 1.25rem;
}

.hero-meta dt:first-child {
  margin-top: 0;
}

.hero-meta dd {
  margin-top: 0.25rem;
}

/* ===== Two-column content ===== */

.two-col {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 4rem;
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-rule);
  margin-bottom: var(--space-md);
}

.two-col:last-child {
  border-bottom: none;
}

.two-col h2 {
  font-size: 1.5rem;
  margin: 0;
}

.two-col-body p:last-child {
  margin-bottom: 0;
}

/* ===== Three-column cards ===== */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin-top: 3rem;
}

.card {
  padding: 2rem 0 0;
  border-top: 1px solid var(--color-ink);
}

.card-number {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 1rem;
  font-style: italic;
}

.card h3 {
  margin-bottom: 0.85rem;
}

.card p {
  font-size: 0.94rem;
  margin: 0;
}

/* ===== CTA block ===== */

.cta-block {
  background: var(--color-ink);
  color: var(--color-bg);
  padding: 4rem 3rem;
  margin: var(--space-lg) 0 0;
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}

.cta-block::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-accent) 0%, transparent 70%);
  opacity: 0.15;
  pointer-events: none;
}

.cta-block h2 {
  color: var(--color-bg);
  position: relative;
  z-index: 1;
}

.cta-block p {
  color: var(--color-bg);
  opacity: 0.8;
  position: relative;
  z-index: 1;
}

.cta-link {
  display: inline-block;
  margin-top: 1.5rem;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--color-accent-soft);
  color: var(--color-bg);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
  transition: border-color 0.2s ease;
}

.cta-link:hover {
  border-bottom-color: var(--color-bg);
}

.cta-link::after {
  content: ' →';
  display: inline-block;
  margin-left: 0.3rem;
  transition: transform 0.2s ease;
}

.cta-link:hover::after {
  transform: translateX(3px);
}

/* ===== Portal placeholder ===== */

.portal-block {
  border: 1px solid var(--color-rule);
  padding: 3rem;
  text-align: center;
  background: var(--color-bg-soft);
  margin-top: 4rem;
}

.portal-block h3 {
  margin-bottom: 0.5rem;
}

.portal-block p {
  margin: 0 auto 1rem;
  max-width: 40ch;
  font-size: 0.95rem;
}

.portal-status {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--color-accent-soft);
  border-radius: 999px;
}

/* ===== Contact grid ===== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-bottom: var(--space-md);
}

.contact-block h4 {
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-rule);
}

.contact-block dl {
  font-size: 0.95rem;
}

.contact-block dt {
  font-weight: 500;
  color: var(--color-muted);
  font-size: 0.85rem;
  margin-top: 1rem;
}

.contact-block dt:first-child {
  margin-top: 0;
}

.contact-block dd {
  margin-top: 0.2rem;
  color: var(--color-ink-soft);
}

.contact-block a {
  color: var(--color-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--color-rule);
  transition: border-color 0.2s ease;
}

.contact-block a:hover {
  border-bottom-color: var(--color-accent);
}

/* ===== Footer ===== */

footer {
  background: var(--color-ink);
  color: var(--color-bg);
  margin-top: var(--space-xl);
  padding: 4rem 0 2rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(217, 210, 199, 0.15);
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}

.footer-tagline {
  font-size: 0.9rem;
  color: rgba(245, 241, 234, 0.6);
  max-width: 30ch;
  line-height: 1.5;
}

.footer-col h5 {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-soft);
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 0.6rem;
}

.footer-col a {
  color: rgba(245, 241, 234, 0.75);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--color-bg);
}

.footer-bottom {
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8rem;
  color: rgba(245, 241, 234, 0.5);
}

.footer-bottom-meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-bottom a {
  color: rgba(245, 241, 234, 0.5);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.footer-bottom a:hover {
  border-bottom-color: rgba(245, 241, 234, 0.5);
}

/* ===== Responsive ===== */

@media (max-width: 880px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .two-col {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .cards {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 1.5rem 2rem;
    gap: 1.25rem;
    border-bottom: 1px solid var(--color-rule);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    padding: var(--space-lg) 1.25rem var(--space-md);
  }

  .section,
  .section-tight {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .nav-inner {
    padding: 1rem 1.25rem;
  }

  .cta-block {
    padding: 2.5rem 1.5rem;
  }

  .footer-inner {
    padding: 0 1.25rem;
  }
}