/* Base / Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: 80px; }
body { margin: 0; }
img, svg { display: block; max-width: 100%; }

/* Scroll-reveal (progressive enhancement — content is visible by default) */
@media (prefers-reduced-motion: no-preference) {
  .scroll-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1), transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  }
  .scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
  /* Stagger children */
  .scroll-reveal:nth-child(2) { transition-delay: 0.1s; }
  .scroll-reveal:nth-child(3) { transition-delay: 0.2s; }
  .scroll-reveal:nth-child(4) { transition-delay: 0.3s; }
}

/* Navbar scroll shadow */
#navbar.scrolled {
  box-shadow: 0 1px 16px rgba(15, 43, 76, 0.08);
}

/* Smooth focus outlines */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid #4ade80;
  outline-offset: 2px;
  border-radius: 4px;
}

/* Selection */
::selection {
  background: rgba(74, 222, 128, 0.2);
  color: #0f2b4c;
}