/* Landing page only: marketing/educational overview of ProteinPulse.
   Assumes css/styles.css is loaded first for shared tokens, .card, .btn-primary,
   .btn-secondary, .site-footer, and the ring/stat-row components reused in the hero. */

.landing {
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.landing-tagline {
  margin: 4px 0 0;
  color: var(--text);
  font-size: 12px;
}

.hero {
  text-align: center;
  padding-bottom: 40px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.landing-eyebrow {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin: 0 0 14px;
}

.hero-title {
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 16px;
}

.hero-sub {
  max-width: 56ch;
  margin: 0 auto 28px;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.6;
}

.landing-cta-row {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.landing-cta {
  width: auto;
  display: inline-block;
  text-decoration: none;
  text-align: center;
}

.hero-visual {
  max-width: 620px;
  margin: 0 auto;
  padding: 32px 24px;
}

.landing-section {
  margin-bottom: 56px;
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 16px;
  text-align: center;
}

.section-body {
  max-width: 62ch;
  margin: 0 auto;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.7;
  text-align: center;
}

.steps-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.step-index {
  font-family: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-text);
  padding-top: 3px;
  flex: 0 0 auto;
}

.step-title {
  margin: 0 0 4px;
  font-weight: 700;
  font-size: 16px;
}

.step-body {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  padding: 20px;
  margin-bottom: 0;
}

.feature-title {
  margin: 0 0 8px;
  font-weight: 700;
  font-size: 15px;
}

.feature-body {
  margin: 0;
  color: var(--text-muted);
  font-size: 13.5px;
  line-height: 1.6;
}

.tenet-list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 62ch;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.tenet-list li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 18px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

.tenet-list strong {
  color: var(--text);
}

.faq {
  max-width: 62ch;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.faq-question {
  margin: 0 0 4px;
  font-weight: 700;
  font-size: 14.5px;
}

.faq-answer {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

.landing-faq-link {
  display: block;
  text-align: center;
  margin-top: 24px;
  color: var(--accent-text);
  font-size: 13px;
  text-decoration: none;
}

.landing-faq-link:hover {
  text-decoration: underline;
}

.landing-final-cta {
  text-align: center;
  padding-top: 8px;
}

.landing-final-cta .section-title {
  margin-bottom: 24px;
}

@media (max-width: 1022px) {
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 699px) {
  .landing {
    padding: 32px 16px 56px;
  }

  .hero {
    padding-bottom: 28px;
    margin-bottom: 28px;
  }

  .hero-visual {
    padding: 24px 16px;
  }

  .feature-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .step {
    gap: 14px;
  }

  .landing-cta-row {
    flex-direction: column;
    align-items: stretch;
  }

  .landing-cta {
    width: 100%;
  }
}