/* ── Base ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { overflow-x: hidden; }

/* ── Reveal animations ── */
.reveal-up, .reveal-left, .reveal-right {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-left { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.reveal-up.is-visible, .reveal-left.is-visible, .reveal-right.is-visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* ── Hero stagger ── */
.reveal-up:nth-child(2) { transition-delay: 100ms; }
.reveal-up:nth-child(3) { transition-delay: 200ms; }
.reveal-up:nth-child(4) { transition-delay: 300ms; }

/* ── Navbar ── */
#navbar.scrolled {
  background: rgba(17, 19, 24, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

/* ── Nav link underline on hover ── */
.nav-link { position: relative; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #FF6B4A;
  transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

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

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #111318; }
::-webkit-scrollbar-thumb { background: #2a2d35; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #3a3d45; }

/* ── Selection ── */
::selection { background: rgba(255, 107, 74, 0.3); color: #fff; }

/* ── Form 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='%23FF6B4A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  appearance: none;
}

/* ── Smooth image loading ── */
img {
  opacity: 0;
  transition: opacity 0.6s ease;
}
img.loaded { opacity: 1; }