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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: rgba(154, 30, 58, 0.15);
  color: #6b1a2e;
}

/* ===== NAVBAR ===== */
.nav {
  background: rgba(254, 247, 245, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(154, 30, 58, 0.08);
}

.nav.scrolled {
  background: rgba(254, 247, 245, 0.97);
  box-shadow: 0 1px 0 rgba(154, 30, 58, 0.06);
}

.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: #9a1e3a;
  transition: width 0.3s ease;
}

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

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

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

.menu-line {
  display: block;
}

#menuBtn.active .menu-line:nth-child(1) {
  transform: rotate(45deg) translate(3px, 3px);
}

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

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

.mobile-link {
  display: block;
  opacity: 1;
}

/* ===== HERO ===== */
#hero {
  position: relative;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  animation: float 2s ease-in-out infinite;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, #d44060, transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

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

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

/* ===== PROGRAM CARDS ===== */
.program-card {
  opacity: 1;
}

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  
  html {
    scroll-behavior: auto;
  }
  
  .scroll-indicator {
    animation: none;
  }
  
  .scroll-line {
    animation: none;
    opacity: 1;
  }
}

/* ===== FORM ===== */
select option {
  background: #fef7f5;
  color: #6b1a2e;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 767px) {
  .scroll-indicator {
    display: none;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  #hero h1 {
    font-size: 3.5rem;
  }
}

@media (min-width: 1024px) {
  #hero h1 {
    font-size: 4.5rem;
  }
}