/* ==========================================================================
   THE FOURTH KIND — COFFEE ORIGINS CARD STACKING SCROLL
   Sticky Overlap Architecture with Dynamic Theme Adaptation
   ========================================================================== */

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

html, body {
  width: 100%;
  background-color: #000000;
  color: #ffffff;
  font-family: 'Kumbh Sans', 'Inter', -apple-system, sans-serif;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   SITE HEADER / NAVBAR (STICKY OVERLAY & DYNAMIC THEME)
   ========================================================================== */
.site-header-container {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  width: 100% !important;
  z-index: 1000 !important;
  background: transparent;
  transition: background 0.35s cubic-bezier(0.16, 1, 0.3, 1), 
              backdrop-filter 0.35s, 
              border-color 0.35s, 
              box-shadow 0.35s;
}

.site-header-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 0;
  width: 100%;
  background: transparent;
}

.header-content-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1440px;
  padding: 0 48px;
  box-sizing: border-box;
}

.header-logo-link {
  text-decoration: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: opacity 0.2s ease;
}

.header-logo-link:hover {
  opacity: 0.8;
}

.header-logo-icon {
  width: 24px;
  height: 24px;
  object-fit: contain;
  display: block;
  transition: filter 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.header-logo-text {
  font-family: 'Kumbh Sans', sans-serif;
  font-size: 16px;
  font-weight: 300;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #ffffff;
  margin: 0;
  padding: 0;
  transition: color 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.header-menu-content {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header-menu-link {
  font-family: 'Kumbh Sans', sans-serif;
  font-size: 14px;
  font-weight: 300;
  color: #ffffff;
  text-decoration: none;
  transition: color 0.3s, opacity 0.2s;
  letter-spacing: 0.02em;
}

.header-menu-link:hover {
  opacity: 0.7;
}

.header-cart-trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.header-cart-btn {
  background: transparent;
  border: none;
  padding: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  position: relative;
  transition: color 0.3s;
}

.header-cart-btn svg {
  width: 19px;
  height: 19px;
  fill: currentColor;
  display: block;
}

/* Dynamic State: Over White Card (Story & Newsletter) */
.site-header-container.navbar-on-white {
  background: rgba(255, 255, 255, 0.88) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08) !important;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04) !important;
}

.site-header-container.navbar-on-white .header-logo-icon {
  filter: invert(1) !important;
}

.site-header-container.navbar-on-white .header-logo-text,
.site-header-container.navbar-on-white .header-menu-link,
.site-header-container.navbar-on-white .header-cart-btn {
  color: #000000 !important;
}

.site-header-container.navbar-on-white .cart-badge {
  background-color: #000000;
  color: #ffffff;
}

/* Dynamic State: Over Dark Footer */
.site-header-container.navbar-on-footer {
  background: rgba(0, 0, 0, 0.85) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5) !important;
}

.site-header-container.navbar-on-footer .header-logo-icon {
  filter: none !important;
}

.site-header-container.navbar-on-footer .header-logo-text,
.site-header-container.navbar-on-footer .header-menu-link,
.site-header-container.navbar-on-footer .header-cart-btn {
  color: #ffffff !important;
}

/* ==========================================================================
   STICKY STACKING CARDS WRAPPER
   ========================================================================== */
.stacking-container {
  position: relative;
  width: 100%;
}

/* ==========================================================================
   CARD 1: HERO SECTION
   ========================================================================== */
.stack-card.card-hero {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  z-index: 1;
  background: #000000;
}

.hero-bg-wrapper {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.15);
  animation: heroImageZoomOut 2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  will-change: transform;
}

@keyframes heroImageZoomOut {
  0% {
    transform: scale(1.2);
    filter: blur(4px);
  }
  100% {
    transform: scale(1.0);
    filter: blur(0px);
  }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(0, 0, 0, 0.15) 0%, rgba(0, 0, 0, 0.5) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  animation: heroTextReveal 1.6s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
  opacity: 0;
  transform: translateY(30px);
}

@keyframes heroTextReveal {
  0% {
    opacity: 0;
    transform: translateY(40px) scale(0.96);
    filter: blur(10px);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    filter: blur(0px);
  }
}

.hero-title {
  font-size: clamp(38px, 7.5vw, 84px);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: clamp(4px, 1.2vw, 12px);
  text-transform: uppercase;
  color: #ffffff;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
  margin: 0;
}

.hero-title span {
  display: block;
}

/* ==========================================================================
   CARD 2: JOURNEY / STORY SECTION (STICKY OVERLAP OVER CARD 1)
   ========================================================================== */
.stack-card.card-story {
  position: sticky;
  top: 0;
  height: 100vh;
  min-height: 100vh;
  width: 100%;
  background: #ffffff;
  color: #000000;
  z-index: 2;
  box-shadow: 0 -25px 60px rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 48px;
  box-sizing: border-box;
}

.story-container {
  max-width: 1000px;
  width: 100%;
  border: 1px solid #e6e6e6;
  background: #ffffff;
  padding: 64px 56px;
  position: relative;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.02);
}

/* Framing Corner Marks */
.story-container::before, 
.story-container::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border-color: #000000;
  border-style: solid;
}

.story-container::before {
  top: -1px;
  left: -1px;
  border-width: 2px 0 0 2px;
}

.story-container::after {
  bottom: -1px;
  right: -1px;
  border-width: 0 2px 2px 0;
}

.story-content {
  font-size: clamp(16px, 1.8vw, 21px);
  font-weight: 300;
  line-height: 1.7;
  color: #000000;
  letter-spacing: 0.2px;
}

.story-lead {
  font-weight: 600;
  color: #000000;
  margin-right: 8px;
}

.story-cta-row {
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.story-product-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #000000;
  color: #ffffff;
  text-decoration: none;
  padding: 14px 28px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: transform 0.25s ease, background 0.25s ease;
}

.story-product-btn:hover {
  background: #222222;
  transform: translateX(4px);
}

/* ==========================================================================
   CARD 3: FOOTER SECTION (STICKY OVERLAP OVER STORY)
   ========================================================================== */
.stack-card.card-footer {
  position: sticky;
  top: 0;
  height: 100vh;
  min-height: 100vh;
  width: 100%;
  background: #000000;
  color: #ffffff;
  z-index: 3;
  box-shadow: 0 -25px 60px rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 80px 64px 40px;
  box-sizing: border-box;
}

.footer-inner-wrap {
  width: 100%;
  max-width: 1280px;
  margin: auto auto;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.3fr 2fr;
  gap: 72px;
  width: 100%;
  align-items: start;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-logo-title {
  font-size: clamp(32px, 4.5vw, 54px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: #ffffff;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.footer-logo-title:hover {
  opacity: 0.8;
}

.footer-brand-desc {
  color: #888888;
  font-size: 14px;
  line-height: 1.6;
  max-width: 360px;
  font-weight: 300;
}

.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-col-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #777777;
  margin-bottom: 20px;
  font-weight: 600;
}

.footer-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 0;
  margin: 0;
}

.footer-nav-list a {
  color: #d1d1d1;
  text-decoration: none;
  font-size: 14px;
  font-weight: 300;
  letter-spacing: 0.3px;
  transition: color 0.2s;
}

.footer-nav-list a:hover {
  color: #ffffff;
}

.footer-bottom-bar {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #666666;
  font-size: 13px;
  letter-spacing: 0.4px;
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 860px) {
  .header-content-inner {
    padding: 0 24px;
  }

  .stack-card.card-story {
    padding: 80px 24px 40px;
  }

  .story-container {
    padding: 36px 28px;
  }

  .footer-inner-wrap {
    gap: 36px;
  }

  .footer-top-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-links-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .header-content-inner {
    padding: 0 18px;
  }

  .header-logo-link {
    gap: 8px;
  }

  .header-logo-icon {
    width: 20px;
    height: 20px;
  }

  .header-logo-text {
    font-size: 13px;
    letter-spacing: 0.08em;
    white-space: nowrap;
  }

  .header-menu-content {
    gap: 14px;
  }

  .header-menu-link {
    font-size: 13.5px;
  }

  .story-container {
    padding: 28px 20px;
  }

  .footer-links-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .stack-card.card-footer {
    padding: 70px 24px 30px;
  }

  .footer-bottom-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}