/* ==================================================
   16 & 17 — FOR STUDENTS & FOR CURIOUS MINDS
   ================================================== */
.section-students-curious {
  padding: var(--section-padding-y) 0;
  background-color: var(--bg-surface);
  position: relative;
  border-top: 1px solid var(--border-subtle);
}

.students-curious-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
}

.audience-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: 28px;
  padding: clamp(3rem, 5vw, 4.5rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 520px;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--transition-smooth), border-color 0.4s ease, box-shadow 0.4s ease;
}

.audience-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-blue);
  box-shadow: var(--shadow-lg);
}

.audience-headline {
  font-size: clamp(2.25rem, 3.8vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.audience-headline .highlight-word {
  color: var(--accent-blue);
}

.audience-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

/* ==================================================
   18 — THE JOURNEY (Horizontal Timeline with Traveling Point)
   ================================================== */
.section-journey {
  position: relative;
  background-color: var(--bg-primary);
  overflow: hidden;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.journey-pinned-wrapper {
  height: 100vh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  padding: 2rem 0;
}

.journey-header {
  padding: 0 var(--container-padding);
  max-width: var(--container-max-width);
  margin: 0 auto 3rem auto;
  width: 100%;
}

.journey-badge {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.25em;
  color: var(--accent-blue);
  margin-bottom: 0.75rem;
  display: block;
}

.journey-track-outer {
  width: 100%;
  overflow: hidden;
  position: relative;
}

.journey-traveling-point {
  position: absolute;
  top: 50%;
  left: var(--container-padding);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--accent-yellow);
  box-shadow: 0 0 20px var(--accent-yellow-glow);
  transform: translateY(-50%);
  z-index: 10;
  pointer-events: none;
}

.journey-track {
  display: flex;
  gap: 3.5rem;
  padding-left: var(--container-padding);
  padding-right: 25vw;
  width: max-content;
  will-change: transform;
  align-items: center;
  position: relative;
}

.journey-step-card {
  flex: 0 0 clamp(300px, 30vw, 420px);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  padding: 3rem 2.5rem;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.journey-step-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-teal);
}

.journey-step-number {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--accent-teal);
  margin-bottom: 1rem;
  font-weight: 700;
}

.journey-step-name {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.journey-step-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.journey-connector-arrow {
  font-size: 2.25rem;
  color: var(--accent-blue);
  opacity: 0.35;
}

.journey-conclusion-text {
  text-align: center;
  max-width: 800px;
  margin: 3rem auto 0 auto;
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  font-weight: 700;
  color: var(--text-primary);
  padding: 0 var(--container-padding);
}

/* ==================================================
   19 — ABOUT MATHEREALITY
   ================================================== */
.section-about {
  padding: clamp(8rem, 16vh, 12rem) 0;
  background-color: var(--bg-surface);
  position: relative;
  border-top: 1px solid var(--border-subtle);
}

.about-content-box {
  max-width: 900px;
  margin: 0 auto;
}

.about-headline {
  font-size: clamp(3rem, 5.5vw, 4.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 3rem;
}

.about-paragraph {
  font-size: clamp(1.25rem, 1.6vw, 1.5rem);
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.about-paragraph strong {
  color: var(--text-primary);
  font-weight: 700;
}

/* ==================================================
   20 — FINAL EXPERIENCE (Point -> World Pinned)
   ================================================== */
.section-final-experience {
  position: relative;
  min-height: 300vh;
  background-color: #FFFFFF;
  border-top: 1px solid var(--border-subtle);
}

.final-pinned-wrapper {
  width: 100%;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: sticky;
  top: 0;
  padding: var(--container-padding);
}

.final-stage-canvas {
  width: min(500px, 85vw);
  height: min(500px, 85vw);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.final-svg-element {
  width: 100%;
  height: 100%;
}

.final-sequence-text {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 2.2vw, 1.85rem);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-purple);
  margin-top: 2rem;
  height: 2.5rem;
  text-align: center;
  font-weight: 700;
}

.final-text-reveals {
  text-align: center;
  max-width: 800px;
  margin-top: 1.5rem;
}

.final-reveal-line {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  opacity: 0;
  transform: translateY(15px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

/* ==================================================
   21 — FINAL CTA
   ================================================== */
.section-final-cta {
  padding: calc(var(--section-padding-y) * 1.4) 0;
  background-color: var(--bg-surface-subtle);
  position: relative;
  text-align: center;
  border-top: 1px solid var(--border-subtle);
}

.cta-content-wrapper {
  max-width: 840px;
  margin: 0 auto;
}

.cta-headline {
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 2rem;
}

.cta-supporting {
  font-size: 1.45rem;
  color: var(--text-secondary);
  margin-bottom: 3.5rem;
}

.cta-buttons-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.75rem;
  flex-wrap: wrap;
}

/* ==================================================
   22 — FOOTER
   ================================================== */
.site-footer {
  background-color: #121214;
  color: #FFFFFF;
  padding: 6rem 0 3.5rem 0;
  position: relative;
  z-index: 10;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 3.5rem;
  padding-bottom: 4.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  max-width: 380px;
}

.footer-logo {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #FFFFFF;
  margin-bottom: 0.75rem;
}

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-purple-light);
  margin-bottom: 1.5rem;
}

.footer-quote {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.6;
}

.footer-nav-group {
  display: flex;
  gap: 4.5rem;
  flex-wrap: wrap;
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 1.5rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.95rem;
  transition: color 0.25s ease;
}

.footer-links a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
  font-family: var(--font-mono);
}