:root {
  --bg: #ffffff;
  --bg-alt: #f5f6f7;
  --fg: #1a1d21;
  --muted: #5c636b;
  --border: #e3e5e8;
  --accent: #2f6f4f;
  --accent-dark: #245a3f;
  --max: 760px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 2.9rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.4rem, 3.5vw, 1.9rem);
  letter-spacing: -0.01em;
  margin-bottom: 0.75rem;
}

p { color: var(--muted); }

/* Hero */
.hero {
  padding: clamp(3rem, 9vw, 6rem) 0 clamp(2.5rem, 6vw, 4rem);
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.headshot {
  width: 132px;
  height: 132px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 1px solid var(--border);
}

.hero-text h1 { margin-bottom: 0.6rem; }

.tagline {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 46ch;
}

/* Sections */
.section { padding: clamp(2.5rem, 7vw, 4.5rem) 0; }

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section p { margin-bottom: 1.1rem; }

.section-img {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  margin: 0.5rem 0 1.4rem;
}

/* About */
.about {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.about-text { flex: 1; }

.about-img {
  width: 280px;
  max-width: 40%;
  border-radius: 12px;
  object-fit: cover;
  flex-shrink: 0;
}

/* PlantData Live feature card */
.feature-card {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 14px;
  padding: clamp(1.75rem, 4vw, 2.75rem);
}

.feature-card h2 { font-size: clamp(1.7rem, 4vw, 2.3rem); }

.feature-card p { margin-bottom: 1rem; }

.feature-card ul {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
  color: var(--muted);
}

.feature-card li { margin-bottom: 0.35rem; }

.vision-label {
  margin-bottom: 0.4rem;
  font-weight: 600;
  color: var(--fg);
}

.feature-card blockquote {
  margin: 0 0 1rem;
  padding: 0.25rem 0 0.25rem 1.1rem;
  border-left: 3px solid var(--accent);
  font-size: 1.1rem;
  font-style: italic;
  color: var(--fg);
}

.feature-card .cta-row { margin-top: 1.5rem; }

/* CTAs */
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.4rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.98rem;
  transition: background 0.15s, border-color 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-dark); }

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn-secondary:hover { background: rgba(47, 111, 79, 0.08); }

.link-cta {
  display: inline-block;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}
.link-cta:hover { text-decoration: underline; }

/* Footer */
.footer {
  padding: clamp(2.5rem, 6vw, 3.5rem) 0;
  border-top: 1px solid var(--border);
}

.copyright {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: var(--muted);
}

/* Responsive */
@media (max-width: 600px) {
  .hero-inner {
    flex-direction: column;
    text-align: center;
    gap: 1.25rem;
  }
  .tagline { max-width: none; }
  .about {
    flex-direction: column;
    gap: 1.5rem;
  }
  .about-img {
    width: 100%;
    max-width: 100%;
  }
  .btn { width: 100%; text-align: center; }
}