/* ===== 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;
}

img {
  max-width: 100%;
  height: auto;
}

/* ===== NAVBAR ===== */
#navbar {
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

#navbar.scrolled {
  background: rgba(11, 21, 58, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: #facc15;
  transition: width 0.2s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link:hover {
  color: #facc15 !important;
}

/* ===== MOBILE MENU ===== */
.mobile-link {
  position: relative;
  padding-left: 0;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.mobile-link:hover {
  color: #facc15 !important;
  padding-left: 0.5rem;
}

/* ===== REVEAL ANIMATIONS ===== */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
  }

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

/* ===== SELECTION ===== */
::selection {
  background: rgba(250, 204, 21, 0.3);
  color: #0b153a;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #0b153a;
}

::-webkit-scrollbar-thumb {
  background: #1f44e0;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #3463f5;
}

/* ===== FOCUS ===== */
a:focus-visible,
button:focus-visible {
  outline: 2px solid #facc15;
  outline-offset: 2px;
  border-radius: 4px;
}

/* ===== UTILITY ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}