/* Kanji・Music・Landscape — curriculum landing
   Shares tokens/components from assets/css/styles.css;
   this file shapes the curriculum path, not the museum homepage. */

.curriculum-page .site-header-inner {
  justify-content: space-between;
}

.curriculum-page .site-brand {
  text-decoration: none;
  color: var(--ink-secondary);
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: none;
  white-space: nowrap;
  transition: color var(--ease);
}

.curriculum-page .site-brand:hover,
.curriculum-page .site-brand:focus-visible {
  color: var(--accent);
}

.curriculum-page .site-brand[aria-current="page"] {
  color: var(--accent);
}

.curriculum-page .site-nav {
  margin-left: 0;
}

/* ---------- Hero: editorial threshold (not crest-centered) ---------- */

.curriculum-hero {
  position: relative;
  min-height: min(100svh, 54rem);
  display: grid;
  align-items: end;
  overflow: hidden;
  background: var(--bg);
}

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

.curriculum-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 48%;
  transform: scale(1.03);
  animation: curriculum-drift 32s ease-in-out infinite alternate;
}

.curriculum-hero-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      105deg,
      rgba(8, 8, 9, 0.88) 0%,
      rgba(8, 8, 9, 0.58) 38%,
      rgba(8, 8, 9, 0.28) 62%,
      rgba(8, 8, 9, 0.55) 100%
    ),
    linear-gradient(
      180deg,
      rgba(8, 8, 9, 0.35) 0%,
      transparent 28%,
      rgba(8, 8, 9, 0.72) 78%,
      rgba(8, 8, 9, 0.96) 100%
    ),
    radial-gradient(
      ellipse 55% 50% at 22% 70%,
      rgba(31, 58, 46, 0.32),
      transparent 70%
    );
  pointer-events: none;
}

.curriculum-hero-inner {
  position: relative;
  z-index: 1;
  width: min(100% - 2.5rem, 40rem);
  margin: 0 auto 0 clamp(1.25rem, 8vw, 7rem);
  padding: clamp(7rem, 16vw, 11rem) 0 clamp(4.5rem, 10vw, 6.5rem);
  text-align: left;
}

.curriculum-hero-brand {
  margin: 0 0 1.35rem;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--accent);
  animation: curriculum-rise 1.15s var(--ease-slow) 0.08s both;
}

.curriculum-hero-inner h1 {
  max-width: 14ch;
  margin: 0 0 1.2rem;
  font-size: clamp(2rem, 5vw, 3.15rem);
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.2;
  color: var(--paper-warm);
  text-shadow: 0 2px 28px rgba(0, 0, 0, 0.45);
  animation: curriculum-rise 1.15s var(--ease-slow) 0.22s both;
}

.curriculum-hero-lead {
  max-width: 28rem;
  margin: 0 0 2.1rem;
  font-size: clamp(1.02rem, 1.5vw, 1.14rem);
  line-height: 1.7;
  color: color-mix(in srgb, var(--ink-secondary) 94%, white);
  text-shadow: 0 1px 16px rgba(0, 0, 0, 0.35);
  animation: curriculum-rise 1.15s var(--ease-slow) 0.36s both;
}

.curriculum-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  animation: curriculum-rise 1.15s var(--ease-slow) 0.5s both;
}

.curriculum-hero-scroll {
  position: absolute;
  left: clamp(1.25rem, 8vw, 7rem);
  bottom: 1.35rem;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  width: 2rem;
  height: 3rem;
  text-decoration: none;
  opacity: 0.7;
  transition: opacity var(--ease);
}

.curriculum-hero-scroll:hover {
  opacity: 1;
}

.curriculum-hero-scroll-line {
  display: block;
  width: 1px;
  height: 2.4rem;
  background: linear-gradient(
    180deg,
    transparent,
    color-mix(in srgb, var(--accent) 80%, white)
  );
  animation: curriculum-scroll 2.4s ease-in-out infinite;
}

@keyframes curriculum-drift {
  from {
    transform: scale(1.03) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.07) translate3d(1.2%, -1%, 0);
  }
}

@keyframes curriculum-rise {
  from {
    opacity: 0;
    transform: translateY(0.9rem);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes curriculum-scroll {
  0%,
  100% {
    transform: scaleY(0.55);
    transform-origin: top;
    opacity: 0.35;
  }
  50% {
    transform: scaleY(1);
    transform-origin: top;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .curriculum-hero-media img,
  .curriculum-hero-brand,
  .curriculum-hero-inner h1,
  .curriculum-hero-lead,
  .curriculum-hero-actions,
  .curriculum-hero-scroll-line {
    animation: none !important;
  }

  .curriculum-hero-media img {
    transform: none;
  }
}

/* ---------- Essence: what it is ---------- */

.essence {
  padding: var(--space-section) 0;
  background:
    radial-gradient(
      ellipse 70% 45% at 80% 10%,
      color-mix(in srgb, var(--green) 18%, transparent),
      transparent 65%
    ),
    var(--bg);
}

.essence-intro {
  max-width: 34rem;
  margin: 0 0 clamp(3rem, 7vw, 4.5rem);
}

.essence-intro h2 {
  font-size: clamp(1.55rem, 3vw, 2.05rem);
  color: var(--paper-warm);
  margin-bottom: 1rem;
}

.essence-intro p {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.75;
}

.essence-pillars {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 3.5rem);
  border-top: 1px solid color-mix(in srgb, var(--stroke) 80%, transparent);
  padding-top: clamp(2.25rem, 5vw, 3.25rem);
}

.essence-pillar {
  position: relative;
  padding-top: 0.25rem;
}

.essence-glyph {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4.5vw, 3.2rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.essence-pillar h3 {
  margin: 0 0 0.85rem;
  font-size: 1.05rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper-warm);
}

.essence-pillar p {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--ink-secondary);
  max-width: 22rem;
}

/* ---------- Measure: extent as supporting info ---------- */

.measure {
  padding: clamp(4rem, 9vw, 6.5rem) 0;
}

.measure .section-head {
  margin-bottom: 2.25rem;
}

.measure .section-head h2 {
  font-size: clamp(1.2rem, 2vw, 1.4rem);
}

.measure .stats-grid {
  max-width: 52rem;
  margin-inline: auto;
}

.measure .stat-card {
  padding: 1rem 0.35rem 0.35rem;
}

.measure .stat-value {
  font-size: clamp(1.15rem, 1.8vw, 1.4rem);
}

.measure .stats-meta,
.measure .stats-link {
  margin-top: 1.25rem;
}

/* ---------- Path: where to begin ---------- */

.path {
  padding: var(--space-section) 0 clamp(4rem, 9vw, 7rem);
  background:
    radial-gradient(
      ellipse 80% 35% at 50% 0%,
      color-mix(in srgb, var(--green) 16%, transparent),
      transparent 70%
    ),
    var(--bg);
}

.path-head {
  max-width: 34rem;
  margin: 0 0 clamp(2.75rem, 6vw, 4rem);
}

.path-head h2 {
  font-size: clamp(1.55rem, 3vw, 2.05rem);
  color: var(--paper-warm);
  margin-bottom: 1rem;
}

.path-head p {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.75;
}

.path-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 40rem;
  border-left: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
}

.path-step {
  position: relative;
  padding: 0 0 clamp(2.5rem, 5vw, 3.25rem) clamp(1.75rem, 4vw, 2.5rem);
}

.path-step:last-child {
  padding-bottom: 0;
}

.path-step::before {
  content: "";
  position: absolute;
  left: -0.28rem;
  top: 0.45rem;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--bg) 85%, var(--accent));
}

.path-index {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  color: color-mix(in srgb, var(--accent) 78%, transparent);
}

.path-step h3 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  color: var(--paper-warm);
  letter-spacing: 0.04em;
}

.path-step > p {
  margin: 0 0 1.25rem;
  max-width: 30rem;
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--ink-secondary);
}

.path-step--start .btn-quiet {
  border-color: color-mix(in srgb, var(--accent) 65%, transparent);
}

.path-practice {
  margin-top: clamp(3.5rem, 8vw, 5.5rem);
  padding-top: clamp(2.5rem, 5vw, 3.5rem);
  border-top: 1px solid color-mix(in srgb, var(--stroke) 80%, transparent);
}

.path-practice-label {
  margin: 0 0 1.75rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
}

.path-practice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(2rem, 5vw, 3.5rem);
  max-width: 44rem;
}

.path-practice-item h3 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.25rem, 2.2vw, 1.45rem);
  color: var(--paper-warm);
}

.path-practice-item p {
  margin: 0 0 1.25rem;
  max-width: 22rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink-secondary);
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .curriculum-hero-inner {
    margin-left: auto;
    margin-right: auto;
    width: min(100% - 2.5rem, var(--max));
  }

  .curriculum-hero-scroll {
    left: 50%;
    transform: translateX(-50%);
  }

  .essence-pillars {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }

  .path-practice-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 720px) {
  .measure .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .measure .stat-card:last-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 480px) {
  .curriculum-hero-brand {
    letter-spacing: 0.1em;
  }
}