/* ========================================
   VARIABLES
========================================= */
:root {
  --color-black: #000000;
  --color-blue: #0066FF;
  --color-pink: #FF0066;
  --color-white: #FFFFFF;
  --color-light-gray: #f3f3f3;
  --color-dark-gray: #222222;
  --color-amazon-orange: #FF9900;

  --font-heading: 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', Arial, sans-serif;

  --transition-default: 0.3s ease;
}

/* ========================================
   RESET AND BASE STYLES
========================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  height: 100%;
  font-family: var(--font-body);
  background-color: var(--color-white);
  color: var(--color-black);
  line-height: 1.5;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  will-change: transform;
  content-visibility: auto;
}

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

/* Utility container */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ========================================
   HEADER / NAV
========================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 0.75rem 1rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo img {
  height: 40px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* ========================================
   BUTTONS & CTAs
========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
  padding: 0.5rem 1rem;
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-default);
}

.btn:hover {
  background-color: var(--color-white);
  color: var(--color-black);
}

.btn:focus-visible {
  outline: 2px solid var(--color-white);
  outline-offset: 2px;
}

.product-cta-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-cta {
  position: relative;
  z-index: 2;
  background-image: linear-gradient(45deg, var(--color-pink), #ff1a75);
  border: none;
  color: var(--color-white);
  font-weight: 700;
  border-radius: 4px;
  padding: 0.75rem 1.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-default);
}

.hero-cta:hover {
  background-image: linear-gradient(45deg, #ff1a75, var(--color-pink));
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 0, 102, 0.3);
  color: var(--color-white);
}

.hero-cta:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(255, 0, 102, 0.2);
}

.hero-cta-secondary {
  background-image: linear-gradient(45deg, var(--color-blue), #1a75ff);
}

.hero-cta-secondary:hover {
  background-image: linear-gradient(45deg, #1a75ff, var(--color-blue));
  box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
}

/* ========================================
   VARIANT CARDS
========================================= */
.variant {
  padding: 1.5rem;
  background: var(--color-white);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: all var(--transition-default);
  cursor: pointer;
  display: block;
}

.variant:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.variant h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--color-black);
}

.variant p {
  color: #666;
  margin-bottom: 0.5rem;
}

.variant .price {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-pink);
  margin-top: 0.75rem;
  margin-bottom: 0.75rem;
}

.variant-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.prime-badge {
  background-color: var(--color-amazon-orange);
  color: var(--color-white);
  font-size: 0.7rem;
  padding: 0.2rem 0.4rem;
  border-radius: 2px;
  text-transform: uppercase;
}

.points {
  font-size: 0.8rem;
  color: #666;
}

/* ========================================
   HERO
========================================= */
.hero {
  background: linear-gradient(
    135deg,
    var(--color-dark-gray) 30%,
    var(--color-blue) 100%
  );
  color: var(--color-white);
  padding: 3rem 0;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: -10%;
  width: 120%;
  height: 100%;
  background: radial-gradient(
    circle at top left,
    var(--color-pink) 0%,
    transparent 50%
  );
  opacity: 0.2;
  z-index: 0;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.1) 0%,
    rgba(0, 0, 0, 0) 100%
  );
  pointer-events: none;
  z-index: 1;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  z-index: 2;
}

.hero-text {
  position: relative;
  z-index: 2;
}

.hero-text h1 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-text p {
  margin-bottom: 1.5rem;
  max-width: 600px;
  line-height: 1.6;
  font-size: 1rem;
}

.hero-image-container {
  position: relative;
  flex: 1;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.hero-image {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

/* ========================================
   FEATURED PRODUCT SECTION
========================================= */
.featured-product {
  background-color: var(--color-white);
  padding: 3rem 0;
  position: relative;
  z-index: 2;
}

.section-title {
  text-align: center;
  font-family: var(--font-heading);
  font-size: 1.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 2rem;
  color: var(--color-black);
}

.section-title::after {
  content: "";
  display: block;
  width: 80px;
  height: 3px;
  background-color: var(--color-pink);
  margin: 1rem auto 0;
}

.featured-grid {
  display: grid;
  gap: 2rem;
}

.featured-info h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.featured-info p {
  margin-bottom: 1.5rem;
  font-size: 1rem;
  line-height: 1.6;
}

.product-variants {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin: 2rem 0;
}

.feature-list {
  list-style: none;
  margin-bottom: 2rem;
}

.feature-list li {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  padding: 0.5rem 0;
}

.feature-icon {
  margin-right: 0.5rem;
  color: var(--color-pink);
  transform: scale(1);
  transition: transform 0.2s ease;
}

.feature-list li:hover .feature-icon {
  transform: scale(1.2);
}

.learn-more-btn {
  background-color: var(--color-black);
  color: var(--color-white);
  border: none;
  padding: 0.75rem 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
  transition: all var(--transition-default);
}

.learn-more-btn:hover {
  background-color: var(--color-black);
  color: var(--color-white);
  transform: scale(1.05);
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.learn-more-btn-secondary {
  background-color: var(--color-blue);
}

.learn-more-btn-secondary:hover {
  background-color: #0052cc;
}

.featured-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.product-preview {
  overflow: hidden;
  border-radius: 6px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transition: all var(--transition-default);
}

.product-preview:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

/* ========================================
   FOOTER
========================================= */
.site-footer {
  background-color: var(--color-light-gray);
  padding: 2rem 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.footer-container {
  text-align: center;
  font-size: 0.9rem;
  color: #666;
}

.footer-container a {
  color: var(--color-black);
  transition: color var(--transition-default);
  font-weight: 500;
}

.footer-container a:hover {
  color: var(--color-pink);
}

/* ========================================
   RESPONSIVE BREAKPOINTS
========================================= */
@media screen and (max-width: 480px) {
  .product-cta-group {
    flex-direction: column;
  }
  
  .hero-cta {
    width: 100%;
    justify-content: center;
  }

  .product-variants {
    grid-template-columns: 1fr;
  }

  .hero-cta, .learn-more-btn {
    padding: 1rem 1.75rem;
  }

  .variant {
    padding: 1rem;
  }

  .variant-badge {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

/* Tablet */
@media screen and (min-width: 768px) and (max-width: 1023px) {
  .hero-content {
    flex-direction: row;
  }

  .featured-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Desktop */
@media screen and (min-width: 1024px) {
  .hero-content {
    flex-direction: row;
  }

  .featured-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}