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

body {
  overflow-x: hidden;
}

::selection {
  background-color: rgba(123, 45, 59, 0.2);
  color: #3d141a;
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1), transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

/* ── Navbar ── */
#navbar {
  background: transparent;
  transition: background-color 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#navbar.scrolled {
  background: rgba(254, 252, 251, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 20px rgba(61, 20, 26, 0.08);
}

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

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

.mobile-link {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s ease;
}

#mobile-menu.open .mobile-link {
  opacity: 1;
  transform: translateY(0);
}

#mobile-menu.open .mobile-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-link:nth-child(5) { transition-delay: 0.25s; }

/* ── Hamburger Animation ── */
.menu-line {
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease;
}

body.menu-open .menu-line:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

body.menu-open .menu-line:nth-child(2) {
  opacity: 0;
}

body.menu-open .menu-line:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
  width: 1.5rem;
}

/* ── Floating Card Animations ── */
@media (prefers-reduced-motion: no-preference) {
  .card-float-1 { animation: float1 6s ease-in-out infinite; }
  .card-float-2 { animation: float2 7s ease-in-out infinite; }
  .card-float-3 { animation: float3 5.5s ease-in-out infinite; }
  .card-float-4 { animation: float4 6.5s ease-in-out infinite; }
}

@keyframes float1 {
  0%, 100% { transform: translateY(0px) rotate(2deg); }
  50% { transform: translateY(-10px) rotate(2deg); }
}

@keyframes float2 {
  0%, 100% { transform: translateY(0px) rotate(-1deg); }
  50% { transform: translateY(-8px) rotate(-1deg); }
}

@keyframes float3 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

@keyframes float4 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
}

/* ── Back to Top ── */
#back-to-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

#back-to-top:not(.visible) {
  transform: translateY(16px);
}

/* ── Custom Select Arrow ── */
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%239c8a7c' 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 12px center;
  padding-right: 36px;
}

/* ── Focus Visible ── */
:focus-visible {
  outline: 2px solid #7B2D3B;
  outline-offset: 2px;
}

/* ── Smooth scrollbar ── */
@media (min-width: 1024px) {
  ::-webkit-scrollbar {
    width: 8px;
  }
  ::-webkit-scrollbar-track {
    background: #fdf8f4;
  }
  ::-webkit-scrollbar-thumb {
    background: #d4c8be;
    border-radius: 4px;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: #b8a89a;
  }