/* Base */
html {
  scroll-behavior: smooth;
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Marquee animation */
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.animate-marquee {
  animation: marquee 30s linear infinite;
}

/* Header scroll state */
header.scrolled {
  background: rgba(254, 252, 251, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(17, 24, 39, 0.06);
}

/* Mobile menu */
.mobile-link {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

#mobile-menu.open .mobile-link {
  opacity: 1;
  transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }

/* Hamburger animation */
.menu-line {
  transition: transform 0.3s ease, opacity 0.3s ease;
}

#menu-toggle.active .menu-line:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

#menu-toggle.active .menu-line:nth-child(2) {
  opacity: 0;
}

#menu-toggle.active .menu-line:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
  width: 1.25rem;
}

/* Approach cards - visible by default, animated on scroll */
@media (prefers-reduced-motion: no-preference) {
  .approach-card {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
  }
}

/* Smooth focus styles */
*:focus-visible {
  outline: 2px solid #ff8a6e;
  outline-offset: 2px;
}

/* Selection color */
::selection {
  background: #ffd4c8;
  color: #1f2937;
}