*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  overflow-x: hidden;
}

/* ─── NAV ─── */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width 0.3s ease;
}

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

/* ─── MOBILE MENU ─── */
.mobile-link {
  position: relative;
}

#mobile-menu.open {
  opacity: 1;
  pointer-events: all;
}

#mobile-menu.closed {
  opacity: 0;
  pointer-events: none;
}

/* ─── HERO ─── */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.scroll-line {
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; transform: scaleY(1); }
  50% { opacity: 0.15; transform: scaleY(0.6); transform-origin: top; }
}

/* ─── SECTION LABEL ─── */
.section-label {
  display: block;
}

/* ─── REVEAL ANIMATIONS ─── */
.reveal {
  opacity: 1;
  transform: translateY(0);
  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);
}

@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(40px);
  }

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

  .intro-stat {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .intro-stat.revealed {
    opacity: 1;
    transform: translateY(0);
  }

  .exp-item {
    opacity: 0;
    transform: translateX(-16px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .exp-item.revealed {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ─── SCROLLBAR ─── */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: #0a1628;
}

::-webkit-scrollbar-thumb {
  background: #c8a45e;
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #d4b76a;
}

/* ─── SELECTION ─── */
::selection {
  background: rgba(200, 164, 94, 0.25);
  color: #0f2140;
}

/* ─── FOCUS ─── */
a:focus-visible,
button:focus-visible {
  outline: 1px solid #c8a45e;
  outline-offset: 4px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
  .font-serif {
    line-height: 1.1;
  }
}