:root {
  --border: #27272a;
}

html {
  scroll-behavior: smooth;
}

body {
  overflow-x: hidden;
}

/* ===== Navbar ===== */
#navbar {
  background: transparent;
}
#navbar.scrolled {
  background: rgba(10, 10, 10, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
#mobile-menu.open {
  display: flex;
}
.mobile-link {
  padding: 0.75rem 0;
  color: #d4d4d8;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.mobile-link:last-of-type {
  border-bottom: none;
}

/* ===== Hero background + scrim + glow ===== */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  filter: grayscale(0.15) brightness(0.55) saturate(1.1);
}
.hero-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(
      180deg,
      rgba(10, 10, 10, 0.55) 0%,
      rgba(10, 10, 10, 0.35) 30%,
      rgba(10, 10, 10, 0.75) 75%,
      #0a0a0a 100%
    ),
    linear-gradient(0deg, transparent 0%, rgba(10, 10, 10, 0.4) 100%);
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    radial-gradient(
      ellipse 60% 45% at 50% 10%,
      rgba(59, 130, 246, 0.4),
      transparent 70%
    ),
    radial-gradient(
      ellipse 45% 35% at 78% 22%,
      rgba(168, 85, 247, 0.3),
      transparent 70%
    );
  filter: blur(40px);
  pointer-events: none;
  mix-blend-mode: screen;
}

.scroll-indicator {
  width: 1px;
  height: 2.5rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.6), transparent);
}

.gradient-text {
  background: linear-gradient(90deg, #60a5fa, #a855f7, #f472b6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===== Buttons ===== */
.pill-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.75rem;
  border-radius: 9999px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.pill-btn-light {
  background: #ffffff;
  color: #0a0a0a;
}
.pill-btn-light:hover {
  background: #e4e4e7;
  transform: translateY(-1px);
}
.pill-btn-outline {
  background: transparent;
  color: #ffffff;
  border: 1px solid var(--border);
}
.pill-btn-outline:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: #52525b;
}

/* ===== Sections ===== */
.section-pad {
  padding-top: 6rem;
  padding-bottom: 6rem;
}
@media (min-width: 768px) {
  .section-pad {
    padding-top: 9rem;
    padding-bottom: 9rem;
  }
}

.eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.4rem 1rem;
  border-radius: 9999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: #d4d4d8;
}

.eyebrow-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #a1a1aa;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

/* ===== Media tint (unify placeholder photography) ===== */
.media {
  position: relative;
}
.media img {
  filter: saturate(1.05) contrast(1.05) brightness(0.88);
}
.media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(59, 130, 246, 0.18),
    rgba(10, 10, 10, 0.35) 60%,
    rgba(168, 85, 247, 0.15)
  );
  mix-blend-mode: multiply;
  pointer-events: none;
}

/* ===== Lab grid cards ===== */
.lab-card {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--border);
}
.lab-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.05) brightness(0.82);
  transition: transform 0.4s ease;
}
.lab-card:hover img {
  transform: scale(1.06);
}
.lab-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(59, 130, 246, 0.22),
    rgba(10, 10, 10, 0.4) 65%,
    rgba(168, 85, 247, 0.18)
  );
  mix-blend-mode: multiply;
  pointer-events: none;
}
.lab-card span {
  position: absolute;
  left: 0.75rem;
  bottom: 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(4px);
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
}

/* ===== Info cards ===== */
.info-card {
  background: #0a0a0a;
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 1.75rem;
}

/* ===== Contact cards ===== */
.contact-card {
  background: #111113;
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.25rem 1.5rem;
}

/* ===== Contact form inputs ===== */
.form-input {
  width: 100%;
  background: #0a0a0a;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  color: #ffffff;
  transition: border-color 0.2s ease;
}
.form-input::placeholder {
  color: #71717a;
}
.form-input:focus {
  outline: none;
  border-color: #52525b;
}

/* ===== Partners ===== */
.partner-logo {
  color: #71717a;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.01em;
  filter: grayscale(1);
  opacity: 0.8;
  transition:
    opacity 0.25s ease,
    color 0.25s ease;
}
.partner-logo:hover {
  opacity: 1;
  color: #e4e4e7;
}

/* ===== Footer ===== */
.footer-heading {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #d4d4d8;
  margin-bottom: 1rem;
}
.footer-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.875rem;
}
.footer-list a {
  color: #a1a1aa;
  transition: color 0.2s ease;
}
.footer-list a:hover {
  color: #ffffff;
}
.social-icon {
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 9999px;
  font-size: 0.65rem;
  font-weight: 700;
  color: #a1a1aa;
  transition: all 0.2s ease;
}
.social-icon:hover {
  color: #fff;
  border-color: #52525b;
}

/* ===== Service cards (services.html overview grid) ===== */
.service-card {
  background: #111113;
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  padding: 1.75rem;
  transition:
    border-color 0.25s ease,
    transform 0.25s ease;
}
.service-card:hover {
  border-color: #52525b;
  transform: translateY(-2px);
}
.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 9999px;
  background: linear-gradient(
    135deg,
    rgba(59, 130, 246, 0.35),
    rgba(168, 85, 247, 0.35)
  );
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}
.service-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #ffffff;
  margin-top: 1rem;
}
.service-link svg {
  width: 1rem;
  height: 1rem;
  transition: transform 0.2s ease;
}
.service-link:hover svg {
  transform: translateX(3px);
}

/* ===== Scroll reveal animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}