/* CSS Custom Variables for Color Scheme & Typography */
:root {
  --pink-bg: hsl(340, 100%, 98%);
  --pink-light: hsl(340, 95%, 95%);
  --pink-medium: hsl(340, 85%, 88%);
  --rose-primary: hsl(340, 80%, 55%);
  --rose-hover: hsl(340, 85%, 48%);
  --rose-glow: hsla(340, 80%, 55%, 0.35);
  --dark-primary: hsl(340, 45%, 12%);
  --dark-secondary: hsl(340, 20%, 35%);
  
  --glass-bg: rgba(255, 255, 255, 0.45);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-shadow: 0 8px 32px 0 rgba(220, 50, 100, 0.08);
  
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  --transition-smooth: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
}

/* Base resets */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--rose-primary) var(--pink-light);
}

body {
  font-family: var(--font-body);
  background-color: var(--pink-bg);
  color: var(--dark-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--pink-light);
}

::-webkit-scrollbar-thumb {
  background: var(--rose-primary);
  border-radius: 5px;
  border: 2px solid var(--pink-light);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--rose-hover);
}

/* Preloader Overlay */
.preloader-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--pink-bg);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.8s;
}

.preloader-overlay.fade-out {
  opacity: 0;
  visibility: hidden;
}

.preloader-content {
  text-align: center;
  max-width: 320px;
  width: 90%;
}

.logo-spinner-wrapper {
  position: relative;
  width: 120px;
  height: 120px;
  margin: 0 auto 24px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.ripple-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 4px solid var(--rose-primary);
  border-radius: 50%;
  animation: ripple 2s cubic-bezier(0.1, 0.8, 0.3, 1) infinite;
  opacity: 0;
}

.ripple-ring.secondary {
  animation-delay: 0.6s;
}

.preloader-logo {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--rose-primary);
  text-shadow: 0 4px 12px var(--rose-glow);
  z-index: 1;
}

.preloader-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--dark-primary);
  margin-bottom: 16px;
}

.progress-bar-container {
  width: 100%;
  height: 6px;
  background-color: var(--pink-medium);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 8px;
}

.progress-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--rose-primary), var(--rose-hover));
  border-radius: 10px;
  transition: width 0.1s ease;
}

.progress-text {
  font-size: 0.85rem;
  color: var(--dark-secondary);
  font-weight: 500;
}

@keyframes ripple {
  0% {
    transform: scale(0.4);
    opacity: 0;
  }
  50% {
    opacity: 0.5;
  }
  100% {
    transform: scale(1.1);
    opacity: 0;
  }
}

/* Header & Nav */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-smooth);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-family: var(--font-heading);
}

.logo-brand {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--rose-primary);
}

.logo-product {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark-primary);
  letter-spacing: 1px;
}

.logo-flavor {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--rose-primary);
  background-color: var(--pink-light);
  padding: 2px 8px;
  border-radius: 20px;
  margin-left: 6px;
}

.nav-menu {
  display: flex;
  gap: 32px;
}

.nav-link {
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  color: var(--dark-primary);
  transition: var(--transition-fast);
  position: relative;
  padding: 4px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--rose-primary);
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--rose-primary);
}

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

/* Button UI */
.btn {
  display: inline-block;
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: 600;
  border-radius: 50px;
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--rose-primary), hsl(340, 85%, 52%));
  color: #fff;
  padding: 14px 28px;
  box-shadow: 0 4px 15px var(--rose-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--rose-glow);
  filter: brightness(1.05);
}

.btn-secondary {
  background-color: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--dark-primary);
  padding: 14px 28px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background-color: var(--pink-light);
  transform: translateY(-2px);
  border-color: var(--rose-primary);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.9rem;
}

/* Hero Overlay Card (First scroll slide) */
.copy-card.hero-card {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: translateY(20px);
  background: none;
  border: none;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  padding: 120px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
              visibility 0.8s;
  z-index: 2;
  pointer-events: none;
}

.copy-card.hero-card.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.copy-card.hero-card * {
  pointer-events: auto; /* Enable buttons and links interaction */
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 6vw, 4.8rem);
  line-height: 1.15;
  font-weight: 800;
  margin-bottom: 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--dark-primary) 30%, var(--rose-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.highlight-text {
  color: var(--rose-primary);
  position: relative;
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--dark-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  font-weight: 400;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 48px;
}

/* Scroll Mouse Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
}

.scroll-indicator-text {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  color: var(--rose-primary);
  font-family: var(--font-heading);
}

.scroll-indicator-mouse {
  width: 26px;
  height: 42px;
  border: 2px solid var(--rose-primary);
  border-radius: 20px;
  position: relative;
}

.scroll-indicator-wheel {
  width: 4px;
  height: 8px;
  background-color: var(--rose-primary);
  border-radius: 2px;
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollMouse 1.8s infinite;
}

@keyframes scrollMouse {
  0% {
    top: 8px;
    opacity: 1;
  }
  100% {
    top: 24px;
    opacity: 0;
  }
}

/* Animation Container & Pinned Wrapper */
.animation-section-container {
  position: relative;
  height: 400vh; /* Control the scroll timeline length */
  background: linear-gradient(180deg, var(--pink-bg) 0%, hsl(340, 100%, 94%) 40%, var(--pink-bg) 100%);
  width: 100%;
}

.animation-pinned-wrapper {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

#animation-canvas {
  width: 100%;
  height: 100%;
  display: block;
  z-index: 1;
}

/* Overlay copy panels */
.scroll-copy-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

.copy-card {
  position: absolute;
  left: 10%;
  top: 50%;
  transform: translateY(-50%) translateX(-40px);
  width: 380px;
  max-width: 90%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 32px;
  border-radius: 24px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--glass-shadow);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), 
              transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), 
              visibility 0.6s;
}

/* Position right card differently for layout variety */
#card-2 {
  left: auto;
  right: 10%;
  transform: translateY(-50%) translateX(40px);
}

.copy-card.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
}

.card-tag {
  display: inline-block;
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  color: var(--rose-primary);
  font-weight: 700;
  margin-bottom: 8px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--dark-primary);
  margin-bottom: 12px;
  line-height: 1.25;
}

.card-desc {
  font-size: 1rem;
  color: var(--dark-secondary);
}

/* Responsiveness adjustments */
@media (max-width: 991px) {
  .header-container {
    padding: 16px;
  }
  .nav-menu {
    display: none; /* simple burger menu could be added, but for landing page simple links or hiding is ok */
  }
  .copy-card {
    left: 5% !important;
    right: 5% !important;
    width: 90% !important;
    transform: translateY(-50%) translateX(0) scale(0.95);
  }
  #card-2 {
    transform: translateY(-50%) translateX(0) scale(0.95);
  }
}

@media (max-width: 768px) {
  .hero-buttons {
    flex-direction: column;
    width: 100%;
    max-width: 300px;
    margin: 0 auto 32px;
  }
}

/* Premium Toast Notification */
.premium-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--glass-border);
  box-shadow: 0 10px 30px rgba(220, 50, 100, 0.15);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 16px 32px;
  border-radius: 50px;
  color: var(--dark-primary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), 
              transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), 
              visibility 0.5s;
  pointer-events: none;
}

.premium-toast.visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}