/* ── Base & Utilities ── */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; }

/* ── Nav Scroll State ── */
#site-header { background: transparent; }
#site-header.scrolled {
  background: rgba(250, 248, 245, 0.92);
  backdrop-blur-xl;
  box-shadow: 0 1px 0 rgba(10, 37, 64, 0.06);
}

/* ── Nav Links ── */
.nav-link { position: relative; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: #14b8a6;
  transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

/* ── Mobile Menu ── */
.mobile-link {
  display: block;
  border-bottom: 1px solid #e8eef3;
}
.mobile-link:last-child { border-bottom: none; }

/* ── Mint Button ── */
.btn-mint {
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.btn-mint::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.btn-mint:hover::before { opacity: 1; }

/* ── Form Inputs ── */
.input-field {
  border: 1.5px solid #d5dfe8;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.9375rem;
  color: #0a2540;
  background: #faf8f5;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  outline: none;
  width: 100%;
}
.input-field::placeholder { color: #8199aa; }
.input-field:hover { border-color: #99f6db; background: #fff; }
.input-field:focus {
  border-color: #14b8a6;
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.12);
  background: #fff;
}
select.input-field { cursor: pointer; }

/* ── Scroll Animations ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  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; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ── Mobile Responsive ── */
@media (max-width: 767px) {
  .font-display { line-height: 1.1; }
  h1, .font-display { letter-spacing: -0.02em; }
}