/* ==========================================================================
   CSS Reset + Base Styles (shared across all versions)
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  font-size: 16px;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

a {
  text-decoration: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  overflow-wrap: break-word;
}

p {
  overflow-wrap: break-word;
}

/* ==========================================================================
   Utility Classes (shared)
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ==========================================================================
   Animation Classes (triggered by IntersectionObserver in base.js)
   ========================================================================== */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.slide-left {
  transform: translateX(-30px);
}

.animate-on-scroll.slide-left.is-visible {
  transform: translateX(0);
}

.animate-on-scroll.slide-right {
  transform: translateX(30px);
}

.animate-on-scroll.slide-right.is-visible {
  transform: translateX(0);
}

.animate-on-scroll.scale-in {
  transform: scale(0.9);
}

.animate-on-scroll.scale-in.is-visible {
  transform: scale(1);
}

.animate-on-scroll.fade-only {
  transform: none;
}

/* Stagger delays for lists */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ==========================================================================
   Carousel Base (CSS Scroll Snap)
   ========================================================================== */

.carousel {
  position: relative;
  overflow: hidden;
}

.carousel__track {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  gap: 16px;
  padding: 10px 0;
}

.carousel__track::-webkit-scrollbar {
  display: none;
}

.carousel__slide {
  flex: 0 0 85%;
  scroll-snap-align: center;
}

.carousel__dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
}

.carousel__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  border: none;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
  padding: 0;
}

.carousel__dot.active {
  background: var(--color-accent, #fff);
  transform: scale(1.2);
}

.carousel__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  z-index: 2;
  transition: background 0.3s ease;
}

.carousel__arrow:hover {
  background: rgba(0, 0, 0, 0.8);
}

.carousel__arrow--prev { left: 8px; }
.carousel__arrow--next { right: 8px; }

/* Hide arrows on mobile (swipe is primary) */
@media (max-width: 767px) {
  .carousel__arrow {
    display: none;
  }
}

/* Desktop: wider slides */
@media (min-width: 768px) {
  .carousel__slide {
    flex: 0 0 45%;
  }
}

@media (min-width: 1024px) {
  .carousel__slide {
    flex: 0 0 30%;
  }
}

/* ==========================================================================
   Accordion Base (FAQ)
   ========================================================================== */

.accordion__item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: inherit;
  gap: 16px;
  min-height: 44px;
}

.accordion__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  position: relative;
  transition: transform 0.3s ease;
}

.accordion__icon::before,
.accordion__icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  transition: transform 0.3s ease;
}

.accordion__icon::before {
  width: 100%;
  height: 2px;
  top: 50%;
  left: 0;
  transform: translateY(-50%);
}

.accordion__icon::after {
  width: 2px;
  height: 100%;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
}

.accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: translateX(-50%) rotate(90deg);
  opacity: 0;
}

.accordion__content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.accordion__content-inner {
  padding: 0 0 20px 0;
  line-height: 1.7;
  opacity: 0.85;
}

/* ==========================================================================
   CTA Button Base (pulse animation)
   ========================================================================== */

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--color-accent-alpha, rgba(255,255,255,0.4)); }
  70% { box-shadow: 0 0 0 15px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  min-height: 52px;
  min-width: 44px;
  text-align: center;
  animation: pulse 2s infinite;
}

.cta-btn:hover {
  transform: translateY(-2px);
}

.cta-btn:active {
  transform: translateY(0);
}

/* ==========================================================================
   Countdown Timer Base
   ========================================================================== */

.countdown {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.countdown__block {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 60px;
}

.countdown__number {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.countdown__label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 4px;
  opacity: 0.7;
}

.countdown__separator {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  align-self: flex-start;
}

/* ==========================================================================
   Video Placeholder
   ========================================================================== */

.video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  overflow: hidden;
}

.video-wrapper iframe,
.video-wrapper video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.video-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
}

.video-placeholder__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-placeholder__icon::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 20px solid #fff;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  margin-left: 4px;
}

/* ==========================================================================
   Image Placeholder (CSS-only, no external images needed)
   ========================================================================== */

.img-placeholder {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
  padding: 20px;
  background: linear-gradient(135deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
}

.img-placeholder--portrait {
  aspect-ratio: 3/4;
}

.img-placeholder--landscape {
  aspect-ratio: 16/9;
}

.img-placeholder--circle {
  aspect-ratio: 1;
  border-radius: 50%;
}