/* ── Reset & Base ── */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  overflow-x: hidden;
}

::selection {
  background: #A8E6CF;
  color: #0B1D3A;
}

img {
  display: block;
  max-width: 100%;
}

/* ── Navbar Scroll State ── */
#nav.scrolled {
  background: rgba(254, 252, 248, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(11, 29, 58, 0.06);
}

#nav.scrolled .menu-line {
  background: #0B1D3A;
}

/* ── Mobile Menu ── */
#mobileMenu.open {
  opacity: 1;
  pointer-events: all;
}

#mobileMenu.open .mobile-link {
  animation: fadeUp 0.4s ease forwards;
  opacity: 0;
}

#mobileMenu.open .mobile-link:nth-child(1) { animation-delay: 0.05s; }
#mobileMenu.open .mobile-link:nth-child(2) { animation-delay: 0.1s; }
#mobileMenu.open .mobile-link:nth-child(3) { animation-delay: 0.15s; }
#mobileMenu.open .mobile-link:nth-child(4) { animation-delay: 0.2s; }
#mobileMenu.open .mobile-link:nth-child(5) { animation-delay: 0.25s; }
#mobileMenu.open .mobile-link:nth-child(6) { animation-delay: 0.3s; }

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

/* Hamburger animation */
.menu-btn.active .menu-line:nth-child(1) {
  transform: rotate(45deg) translate(4px, 4px);
}
.menu-btn.active .menu-line:nth-child(2) {
  opacity: 0;
}
.menu-btn.active .menu-line:nth-child(3) {
  width: 24px;
  transform: rotate(-45deg) translate(4px, -4px);
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── Custom Select Arrow ── */
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%230B1D3A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* ── Subtle gradient text for hero (if needed) ── */
.gradient-text {
  background: linear-gradient(135deg, #0B1D3A 0%, #132E54 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Accessibility ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}