/* ═══════════════════════════════════════════════════════
   RBRIDGE LIFESCIENCES – MAIN STYLESHEET
   Palette: White base · Navy #0D1B3E · Red #C0392B · Grey #F7F8FA
   Font: Inter (body/UI) + Playfair Display (display headlines)
   ═══════════════════════════════════════════════════════ */

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

:root {
  --navy:       #0D1B3E;
  --navy-light: #1a2f5e;
  --red:        #C0392B;
  --red-light:  #e74c3c;
  --white:      #ffffff;
  --grey-bg:    #F7F8FA;
  --grey-mid:   #e8eaed;
  --grey-text:  #6b7280;
  --text:       #1a1a2e;

  --font-body:    'Inter', sans-serif;
  --font-display: 'Playfair Display', serif;

  --radius:   8px;
  --shadow:   0 4px 24px rgba(13,27,62,0.08);
  --shadow-md:0 8px 40px rgba(13,27,62,0.12);
  --transition: 0.22s ease;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section { padding: 5rem 0; }

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--red);
  color: var(--white);
  border-color: var(--red);
}
.btn-primary:hover { background: var(--red-light); border-color: var(--red-light); transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline:hover { background: var(--navy); color: var(--white); transform: translateY(-1px); }

.btn-white {
  background: var(--white);
  color: var(--navy);
  border-color: var(--white);
}
.btn-white:hover { background: var(--grey-bg); transform: translateY(-1px); }

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.6);
}
.btn-outline-white:hover { background: rgba(255,255,255,0.1); border-color: var(--white); transform: translateY(-1px); }

/* ── Section headers ─────────────────────────────────── */
.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 0.5rem;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  color: var(--navy);
  line-height: 1.2;
  margin-bottom: 1rem;
}
.section-desc {
  color: var(--grey-text);
  max-width: 560px;
  font-size: 1rem;
}
.section-header { margin-bottom: 3rem; }

/* ════════════════════════════════════════════════════════
   HEADER / NAV
   ════════════════════════════════════════════════════════ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid var(--grey-mid);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* Logo */
.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}
.logo-mark {
  width: 40px; height: 40px;
  background: var(--navy);
  color: var(--white);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}
.logo-mark.small { width: 32px; height: 32px; font-size: 0.75rem; }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-main { font-size: 1rem; font-weight: 800; color: var(--navy); letter-spacing: 0.06em; }
.logo-sub  { font-size: 0.65rem; font-weight: 400; color: var(--grey-text); letter-spacing: 0.04em; }

/* Nav list */
.nav-list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.85rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
  border-radius: 6px;
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-link:hover, .nav-link.active { color: var(--red); background: rgba(192,57,43,0.06); }
.caret { font-size: 0.65rem; transition: transform var(--transition); }

/* Dropdown */
.has-dropdown { position: relative; }
.dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: var(--white);
  border: 1px solid var(--grey-mid);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  min-width: 280px;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all var(--transition);
  z-index: 200;
}
.has-dropdown:hover .dropdown-menu,
.has-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.has-dropdown:hover .caret { transform: rotate(180deg); }

.dropdown-menu li a {
  display: block;
  padding: 0.45rem 1.25rem;
  font-size: 0.85rem;
  color: var(--text);
  transition: all var(--transition);
}
.dropdown-menu li a:hover { color: var(--red); background: rgba(192,57,43,0.05); padding-left: 1.5rem; }

.dropdown-group-label {
  padding: 0.35rem 1.25rem 0.2rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--grey-text);
  cursor: default;
}
.dropdown-divider { height: 1px; background: var(--grey-mid); margin: 0.35rem 0; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ════════════════════════════════════════════════════════
   HERO
   ════════════════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--navy);
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg-pattern {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 70% 50%, rgba(192,57,43,0.12) 0%, transparent 60%),
    radial-gradient(circle at 10% 80%, rgba(255,255,255,0.03) 0%, transparent 50%);
  pointer-events: none;
}

/* Subtle grid lines */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 4rem;
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 1rem;
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-body {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.7);
  max-width: 520px;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Stats sidebar */
.hero-stats {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex-shrink: 0;
}
.stat-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 1.25rem 1.75rem;
  text-align: center;
  backdrop-filter: blur(4px);
  min-width: 160px;
  transition: background var(--transition);
}
.stat-card:hover { background: rgba(255,255,255,0.1); }
.stat-number {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 0.4rem;
}
.stat-plus { font-size: 1.4rem; color: var(--red); }
.stat-label {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.55);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

/* ════════════════════════════════════════════════════════
   SERVICES OVERVIEW
   ════════════════════════════════════════════════════════ */
.services-overview { background: var(--grey-bg); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--grey-mid);
  border-radius: 12px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: all var(--transition);
  cursor: default;
  position: relative;
  overflow: hidden;
}
.service-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.service-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: transparent; }
.service-card:hover::after { transform: scaleX(1); }

.service-card-header { display: flex; align-items: flex-start; gap: 1rem; }

.service-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  color: var(--navy);
  opacity: 0.8;
}
.service-icon svg { width: 100%; height: 100%; }
.service-card:hover .service-icon { color: var(--red); opacity: 1; }

.service-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  padding-top: 0.1rem;
}
.service-card-subtitle {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--grey-text);
  margin-top: 0.15rem;
}

.service-bullets {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}
.service-bullets li {
  font-size: 0.85rem;
  color: var(--grey-text);
  padding-left: 1rem;
  position: relative;
  line-height: 1.4;
}
.service-bullets li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--red);
  font-size: 0.7rem;
}

.service-card-link {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--red);
  letter-spacing: 0.02em;
  transition: gap var(--transition);
  margin-top: auto;
}
.service-card-link:hover { text-decoration: underline; }

/* ════════════════════════════════════════════════════════
   ABOUT STRIP
   ════════════════════════════════════════════════════════ */
.about-strip { background: var(--white); }
.about-strip-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.about-strip-text p { color: var(--grey-text); margin-bottom: 1rem; font-size: 0.95rem; line-height: 1.75; }
.about-strip-text p:first-of-type { color: var(--text); font-size: 1rem; }

.about-accent-box {
  background: var(--navy);
  border-radius: 12px;
  padding: 3rem 2.5rem;
  position: relative;
}
.accent-line {
  width: 48px; height: 4px;
  background: var(--red);
  border-radius: 2px;
  margin-bottom: 2rem;
}
.accent-quote {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--white);
  line-height: 1.4;
  margin-bottom: 1rem;
}
.accent-source {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.06em;
}

/* ════════════════════════════════════════════════════════
   FOUNDER
   ════════════════════════════════════════════════════════ */
.founder { background: var(--grey-bg); }
.founder-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3.5rem;
  align-items: start;
}
.founder-badge {
  width: 100px; height: 100px;
  background: var(--navy);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.founder-initials {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.05em;
}
.founder-name {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--navy);
  margin-bottom: 0.25rem;
}
.founder-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 1.25rem;
}
.founder-bio {
  color: var(--grey-text);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 1rem;
  max-width: 680px;
}
.founder-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}
.tag {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: 99px;
  background: rgba(13,27,62,0.07);
  color: var(--navy);
  border: 1px solid rgba(13,27,62,0.12);
}

/* ════════════════════════════════════════════════════════
   CLIENTS
   ════════════════════════════════════════════════════════ */
.clients { background: var(--white); }
.clients-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.client-tile {
  border: 1px solid var(--grey-mid);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--grey-text);
  transition: all var(--transition);
  background: var(--grey-bg);
}
.client-tile:hover {
  border-color: var(--navy);
  color: var(--navy);
  background: var(--white);
  box-shadow: var(--shadow);
}

/* ════════════════════════════════════════════════════════
   REGULATORY UPDATES STRIP
   ════════════════════════════════════════════════════════ */
.updates-strip { background: var(--grey-bg); }
.updates-strip-inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: start;
}
.updates-strip-text p { color: var(--grey-text); font-size: 0.95rem; }

.updates-preview {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.update-loading {
  color: var(--grey-text);
  font-size: 0.9rem;
  padding: 1rem 0;
}
.update-item {
  background: var(--white);
  border: 1px solid var(--grey-mid);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  transition: box-shadow var(--transition);
}
.update-item:hover { box-shadow: var(--shadow); }
.update-source {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 0.3rem;
}
.update-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy);
  line-height: 1.35;
  margin-bottom: 0.25rem;
}
.update-date { font-size: 0.75rem; color: var(--grey-text); }

/* ════════════════════════════════════════════════════════
   CONTACT CTA
   ════════════════════════════════════════════════════════ */
.contact-cta {
  background: var(--navy);
  padding: 4rem 0;
}
.contact-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.cta-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  color: var(--white);
  margin-bottom: 0.4rem;
}
.cta-sub { color: rgba(255,255,255,0.55); font-size: 0.95rem; }
.cta-actions { display: flex; gap: 1rem; flex-wrap: wrap; flex-shrink: 0; }

/* ════════════════════════════════════════════════════════
   FOOTER
   ════════════════════════════════════════════════════════ */
.site-footer {
  background: #070f20;
  color: rgba(255,255,255,0.6);
  padding-top: 4rem;
}
.footer-inner {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo-main { color: var(--white); }
.footer-brand .logo-sub  { color: rgba(255,255,255,0.4); }
.footer-tagline {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.35);
  margin-top: 0.75rem;
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-col ul li a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--white); }
.footer-address {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.5;
}
.footer-bottom {
  padding: 1.25rem 0;
}
.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.25);
  text-align: center;
}

/* ════════════════════════════════════════════════════════
   RESPONSIVE
   ════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: row; flex-wrap: wrap; }
  .stat-card { min-width: 140px; flex: 1; }
  .about-strip-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .founder-inner { grid-template-columns: 1fr; }
  .founder-badge { width: 72px; height: 72px; }
  .founder-initials { font-size: 1.2rem; }
  .updates-strip-inner { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .clients-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-cta-inner { flex-direction: column; align-items: flex-start; }
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }

  /* Mobile nav */
  .main-nav {
    position: fixed;
    top: 72px; left: 0; right: 0; bottom: 0;
    background: var(--white);
    overflow-y: auto;
    padding: 1rem 0;
    transform: translateX(100%);
    transition: transform var(--transition);
    border-top: 1px solid var(--grey-mid);
  }
  .main-nav.open { transform: translateX(0); }
  .nav-list { flex-direction: column; align-items: stretch; padding: 0 1rem; gap: 0; }
  .nav-link { padding: 0.8rem 1rem; border-radius: var(--radius); }
  .dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    background: var(--grey-bg);
    opacity: 1;
    visibility: visible;
    transform: none;
    border-radius: var(--radius);
    margin-top: 0.25rem;
    display: none;
  }
  .has-dropdown.open .dropdown-menu { display: block; }
  .hamburger { display: flex; }
}

@media (max-width: 480px) {
  .clients-grid { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr; }
  .section { padding: 3.5rem 0; }
}

/* ── Real logo image ─────────────────────────── */
.site-logo {
  height: 60px;
  width: auto;
  display: block;
}

/* ── Client carousel ─────────────────────────── */
.clients-carousel-wrapper {
  overflow: hidden;
  position: relative;
  padding: 1rem 0;
}
.clients-carousel-wrapper::before,
.clients-carousel-wrapper::after {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  width: 80px;
  z-index: 2;
  pointer-events: none;
}
.clients-carousel-wrapper::before { left: 0; background: linear-gradient(to right, var(--white), transparent); }
.clients-carousel-wrapper::after  { right: 0; background: linear-gradient(to left, var(--white), transparent); }

.clients-carousel {
  display: flex;
  gap: 1.5rem;
  width: max-content;
  animation: carousel-scroll 40s linear infinite;
}
.clients-carousel:hover { animation-play-state: paused; }

@keyframes carousel-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.client-logo-tile {
  flex-shrink: 0;
  width: 240px;
  height: 120px;
  background: var(--white);
  border: 1px solid var(--grey-mid);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.client-logo-tile:hover {
  box-shadow: var(--shadow);
  border-color: rgba(13,27,62,0.15);
}
.client-logo-tile img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: grayscale(30%);
  transition: filter var(--transition);
}
.client-logo-tile:hover img { filter: grayscale(0%); }