/* Homepage — Systems Architect Landing (Stanford HAI / MIT CSAIL style) */

.home-architect {
  --home-max: 720px;
  --home-gap: 3rem;
  --home-muted: #555;
  --home-accent: #0066cc;
  --home-border: #e5e5e5;
}

.home-architect .home-hero {
  padding: 4rem 1.5rem 3rem;
  text-align: center;
  border-bottom: 1px solid var(--home-border);
}

.home-architect .home-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
  line-height: 1.2;
}

.home-architect .home-hero .subtitle {
  font-size: 1rem;
  color: var(--home-muted);
  margin: 0 0 1.5rem;
  font-weight: 500;
}

.home-architect .home-hero .tagline {
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 2rem;
  line-height: 1.6;
  color: #333;
}

.home-architect .home-hero .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.home-architect .home-hero .cta-btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 4px;
  transition: opacity 0.2s;
}

.home-architect .home-hero .cta-btn.primary {
  background: var(--home-accent);
  color: #fff;
  border: none;
}

.home-architect .home-hero .cta-btn.secondary {
  background: transparent;
  color: var(--home-accent);
  border: 2px solid var(--home-accent);
}

.home-architect .home-hero .cta-btn:hover {
  opacity: 0.88;
}

.home-architect .home-section {
  max-width: var(--home-max);
  margin: 0 auto;
  padding: var(--home-gap) 1.5rem;
}

.home-architect .home-section h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 1rem;
  letter-spacing: -0.01em;
}

.home-architect .home-section h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.5rem;
}

.home-architect .home-section p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: #444;
  margin: 0 0 0.75rem;
}

.home-architect .home-section ul {
  margin: 0.5rem 0 1rem;
  padding-left: 1.25rem;
}

.home-architect .home-section li {
  margin-bottom: 0.35rem;
  font-size: 0.95rem;
  color: #444;
}

.home-architect .home-credibility {
  background: #f8f9fa;
  border-top: 1px solid var(--home-border);
}

.home-architect .home-stack {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.home-architect .home-stack-col h4 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--home-muted);
  margin: 0 0 0.5rem;
}

.home-architect .home-stack-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.home-architect .home-stack-col li {
  font-size: 0.9rem;
  padding: 0.15rem 0;
}

.home-architect .home-systems {
  border-top: 1px solid var(--home-border);
}

.home-architect .home-system-card {
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--home-border);
}

.home-architect .home-system-card:last-child {
  border-bottom: none;
}

.home-architect .home-system-card h3 {
  margin-top: 0;
}

.home-architect .home-system-card .stack-tag {
  font-size: 0.8rem;
  color: var(--home-muted);
  margin-top: 0.5rem;
}

.home-architect .home-architecture {
  background: #f8f9fa;
  border-top: 1px solid var(--home-border);
}

.home-architect .home-architecture .diagram-wrap {
  margin: 1.5rem 0;
  padding: 1.5rem;
  background: #fff;
  border: 1px solid var(--home-border);
  border-radius: 6px;
  overflow-x: auto;
}

.home-architect .home-architecture .diagram-wrap svg {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  height: auto;
}

.home-architect .home-frameworks {
  border-top: 1px solid var(--home-border);
}

.home-architect .home-tools {
  background: #f8f9fa;
  border-top: 1px solid var(--home-border);
}

.home-architect .home-tools .tool-card {
  padding: 1rem 0;
  border-bottom: 1px solid var(--home-border);
}

.home-architect .home-tools .tool-card:last-child {
  border-bottom: none;
}

.home-architect .home-writing {
  border-top: 1px solid var(--home-border);
}

.home-architect .home-writing .writing-link {
  display: block;
  padding: 0.75rem 0;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid var(--home-border);
  font-size: 0.95rem;
}

.home-architect .home-writing .writing-link:hover {
  color: var(--home-accent);
}

.home-architect .home-philosophy {
  background: #f0f2f5;
  border-top: 1px solid var(--home-border);
  font-style: italic;
}

.home-architect .home-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
  padding: 1.5rem;
  font-size: 0.9rem;
  color: var(--home-muted);
  border-bottom: 1px solid var(--home-border);
}

.home-architect .home-metrics span {
  font-weight: 600;
  color: #333;
}

@media (max-width: 600px) {
  .home-architect .home-hero {
    padding: 3rem 1rem 2rem;
  }
  .home-architect .home-section {
    padding: 2rem 1rem;
  }
}