/* ── Base & Animations ── */
html {
  scroll-behavior: smooth;
}

body {
  overflow-x: hidden;
}

/* ── Floating animations ── */
@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(2deg); }
}

@keyframes floatDelayed {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(-2deg); }
}

@keyframes scrollLine {
  0% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

.animate-float-delayed {
  animation: floatDelayed 8s ease-in-out infinite;
}

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

/* ── Header scroll state ── */
#header {
  transition: background-color 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

#header.scrolled {
  background-color: rgba(255, 254, 247, 0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 20px rgba(5, 78, 59, 0.08);
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: width 0.3s ease;
  opacity: 0.4;
}

.nav-link:hover::after {
  width: 100%;
  opacity: 1;
}

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

.mobile-link {
  position: relative;
}

.mobile-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: #059669;
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.mobile-link:hover::after {
  width: 60%;
}

/* ── Reveal on scroll ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s 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; }

/* ── Product card image hover ── */
.group:hover .group-hover\:scale-105 {
  transform: scale(1.05);
}

/* ── Custom scrollbar ── */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #fefce8;
}

::-webkit-scrollbar-thumb {
  background: #86efac;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #4ade80;
}

/* ── Focus styles ── */
input:focus, textarea:focus {
  outline: none;
}

/* ── Responsive adjustments ── */
@media (max-width: 640px) {
  .font-serif {
    font-size: clamp(1.75rem, 8vw, 2.5rem);
  }
}