/* ============================================
   UPP Women's Health — Custom Styles
   ============================================ */

/* Base */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
}

/* Scroll indicator animation */
@keyframes scrollDown {
  0% { transform: translateY(-100%); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: translateY(100%); opacity: 0; }
}

.scroll-line {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 40%;
  background: linear-gradient(to bottom, transparent, #0F766E);
  border-radius: 999px;
  animation: scrollDown 1.8s ease-in-out infinite;
}

/* Navbar transition */
#navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06);
}

#navbar.scrolled .nav-link {
  color: #334155;
}

#navbar.scrolled .font-serif {
  color: #0f172a;
}

/* Service card hover */
.service-card {
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              border-color 0.4s ease;
}

.service-card:hover {
  transform: translateY(-4px);
}

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

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

.mobile-link {
  opacity: 1;
}

/* Menu icon animation */
#menu-btn.active .menu-line:nth-child(1) {
  top: 14px;
  transform: rotate(45deg);
}

#menu-btn.active .menu-line:nth-child(2) {
  top: 14px;
  transform: rotate(-45deg);
}

/* Scroll reveal animations — progressive enhancement */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }

  .reveal.revealed {
    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; }
}

/* Select styling */
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='%2394a3b8' stroke-width='2.5' 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 12px center;
  padding-right: 36px;
}

/* Selection color */
::selection {
  background: rgba(15, 118, 110, 0.15);
  color: #0f172a;
}