/* ── Base & Utilities ── */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

::selection {
  background: #C2704E;
  color: #FDFBF8;
}

/* ── Navbar scroll state ── */
#navbar {
  background: transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease;
}

#navbar.scrolled {
  background: rgba(253, 251, 245, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(61, 43, 31, 0.06);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: #C2704E;
  border-radius: 1px;
  transition: width 0.25s ease;
}

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

/* ── Mobile menu ── */
#mobile-menu {
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-link {
  display: block;
  transition: color 0.2s ease;
}

.mobile-link:hover {
  color: #C2704E;
}

/* ── Hamburger animation ── */
#menu-btn.active .menu-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

#menu-btn.active .menu-line:nth-child(2) {
  opacity: 0;
}

#menu-btn.active .menu-line:nth-child(3) {
  width: 1.5rem;
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ── Reveal animations (progressive enhancement) ── */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
  }

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

  .reveal:nth-child(2) { transition-delay: 0.08s; }
  .reveal:nth-child(3) { transition-delay: 0.16s; }
  .reveal:nth-child(4) { transition-delay: 0.24s; }
}

/* ── Form styles ── */
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='%233D2B1F' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  appearance: none;
}

/* ── Smooth focus for accessibility ── */
:focus-visible {
  outline: 2px solid #C2704E;
  outline-offset: 2px;
}

/* ── Responsive tweaks ── */
@media (max-width: 640px) {
  #hero h1 {
    font-size: 2.75rem;
  }

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