/* ==========================================================================
   Wakaba — styles.css
   Pure CSS for the single-origin tea house landing experience
   ========================================================================== */

/* Layout & Container Utility */
.site-container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* Global Nav Header */
.site-header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 20;
  padding: 24px 0;
}

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

.brand-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--color-paper);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-paper);
  opacity: 0.85;
  transition: opacity var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}

.nav-link:hover {
  opacity: 1;
  color: var(--color-matcha-soft);
}

/* ==========================================================================
   Section 1 — Collections Hero (data-section="hero")
   ========================================================================== */
.s-hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: flex-end;
  padding: 128px 0 64px;
  overflow: hidden;
  background-color: var(--color-ink);
}

.hero-media-backdrop {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1100px;
}

.hero-heading-block {
  margin-bottom: 32px;
}

.hero-eyebrow {
  color: var(--color-paper);
  opacity: 0.9;
  margin-bottom: 12px;
}

.hero-title {
  color: var(--color-paper);
  text-shadow: 0 1px 2px rgba(28, 26, 23, 0.4);
}

/* Word-by-word Reveal Signature Mechanism */
.word-wrap {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
  padding-right: 0.15em;
}

.word-inner {
  display: inline-block;
  opacity: 0;
  transform: translateY(110%);
  filter: blur(6px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out),
              filter var(--duration-slow) var(--ease-out);
  will-change: transform, opacity, filter;
}

.revealed .word-inner {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

.hero-sub-panel {
  background-color: var(--color-paper);
  border: 1px solid var(--color-ink-30);
  border-radius: var(--radius-sm);
  padding: 32px;
  max-width: 580px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-shadow: none;
}

.hero-sub-text {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-ink);
}

/* ==========================================================================
   Section 2 — Seasonal Catalogue (data-section="catalogue")
   ========================================================================== */
.s-catalogue {
  background-color: var(--color-paper);
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
}

.section-header {
  margin-bottom: 48px;
}

.catalogue-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background-color: var(--color-ink-30);
  border: 1px solid var(--color-ink-30);
}

.catalogue-card {
  background-color: var(--color-paper-deep);
  padding: 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 280px;
  transition: background-color var(--duration-medium) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
  cursor: default;
}

.catalogue-card:hover {
  background-color: var(--color-matcha-soft);
  transform: translateY(-4px);
}

.card-top {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--color-ink);
  margin: 0;
}

.card-tasting {
  font-family: var(--font-body);
  font-size: 1rem;
  font-style: italic;
  color: var(--color-ink-60);
  line-height: 1.6;
  margin: 0;
}

.card-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--color-ink-30);
}

.card-price {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-ink);
}

/* ==========================================================================
   Section 3 — Origin Story (data-section="origin")
   ========================================================================== */
.s-origin {
  background-color: var(--color-paper-deep);
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
  border-top: 1px solid var(--color-ink-30);
  border-bottom: 1px solid var(--color-ink-30);
}

.origin-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: start;
}

.origin-narrative {
  max-width: 34rem;
}

.origin-paragraphs {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.origin-p {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-ink);
  margin: 0;
}

.origin-stills {
  display: flex;
  flex-direction: column;
  gap: 48px;
  padding-top: 32px;
}

.still-card {
  position: relative;
  background-color: var(--color-paper);
  border: 1px solid var(--color-ink-30);
  border-radius: var(--radius-sm);
  padding: 12px;
}

.still-card-offset {
  margin-left: 32px;
}

.still-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-sm);
}

.still-caption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-ink-60);
  display: flex;
  justify-content: space-between;
}

/* ==========================================================================
   Section 4 — Tea Club Subscription (data-section="club")
   ========================================================================== */
.s-club {
  background-color: var(--color-paper);
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
}

.tiers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.tier-card {
  background-color: var(--color-paper);
  border: 1px solid var(--color-ink-30);
  border-radius: var(--radius-sm);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: transform var(--duration-fast) var(--ease-out);
}

.tier-card-featured {
  border: 2px solid var(--color-matcha);
  background-color: var(--color-paper);
}

.tier-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.tier-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--color-ink);
  margin: 0;
}

.tier-price-row {
  margin: 16px 0 24px;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.tier-price {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-ink);
}

.tier-cycle {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-ink-60);
}

.tier-features {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tier-feature-item {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-ink-60);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-ink-10);
  line-height: 1.5;
}

.tier-feature-item:last-child {
  border-bottom: none;
}

.tier-action {
  width: 100%;
}

/* ==========================================================================
   Section 5 — Footer Ledger (data-section="footer")
   ========================================================================== */
.s-footer {
  background-color: var(--color-ink);
  color: var(--color-paper);
  padding: 80px 0 32px;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 320px;
}

.footer-wordmark {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  color: var(--color-paper);
  margin: 0;
}

.footer-origin-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-paper-deep);
  opacity: 0.75;
}

.footer-desc {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-paper-deep);
  opacity: 0.75;
  margin: 0;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-paper);
  margin-bottom: 20px;
}

.footer-link-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-paper-deep);
  opacity: 0.75;
  transition: opacity var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);
}

.footer-link:hover {
  opacity: 1;
  color: var(--color-matcha-soft);
}

/* Ledger Strip */
.footer-ledger-strip {
  border-top: 1px solid rgba(250, 246, 238, 0.2);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.ledger-item {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-paper);
  opacity: 0.65;
}

/* Stagger Animation Utility Classes */
.stagger-entrance {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out);
}

.stagger-entrance.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Media Queries */
@media (max-width: 960px) {
  .catalogue-grid {
    grid-template-columns: 1fr;
  }
  .origin-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .origin-stills {
    padding-top: 0;
  }
  .still-card-offset {
    margin-left: 0;
  }
  .tiers-grid {
    grid-template-columns: 1fr;
  }
  .footer-top-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 600px) {
  .nav-links {
    display: none;
  }
  .footer-top-grid {
    grid-template-columns: 1fr;
  }
  .footer-ledger-strip {
    flex-direction: column;
    align-items: flex-start;
  }
}