:root {
  --bg: #1a1a2e;
  --bg-card: #222244;
  --bg-card-hover: #2a2a50;
  --text: #e0e0e8;
  --text-dim: #8888aa;
  --accent: #e8a850;
  --accent-dim: #c08030;
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;
  --max-width: 680px;
}

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

html {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-dim);
}

/* ===== Hero ===== */

.hero {
  text-align: center;
  padding: 64px 24px 48px;
  max-width: var(--max-width);
  width: 100%;
}

.hero-brand {
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--accent);
  line-height: 1.1;
}

.hero-name {
  font-size: 1.2rem;
  color: var(--text-dim);
  margin-top: 6px;
  letter-spacing: 2px;
}

.hero-tagline {
  font-size: 1rem;
  color: var(--text);
  margin-top: 24px;
  font-weight: 400;
}

.hero-quote {
  font-size: 0.95rem;
  color: var(--text-dim);
  margin-top: 20px;
  line-height: 1.7;
  font-style: normal;
  border-left: 2px solid var(--accent);
  padding-left: 16px;
  text-align: left;
  display: inline-block;
}

/* ===== Concepts ===== */

.concepts {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 0 24px;
  max-width: var(--max-width);
  width: 100%;
}

.concept-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  transition: background 0.2s;
}

.concept-card:hover {
  background: var(--bg-card-hover);
}

.concept-icon {
  font-size: 1.6rem;
  color: var(--accent);
  font-family: var(--font-mono);
  line-height: 1;
}

.concept-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.concept-card p {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ===== CTA ===== */

.cta {
  text-align: center;
  padding: 48px 24px;
  max-width: var(--max-width);
  width: 100%;
}

.btn-start {
  display: inline-block;
  background: var(--accent);
  color: #1a1a2e;
  font-size: 1.15rem;
  font-weight: 600;
  padding: 16px 48px;
  border-radius: 10px;
  letter-spacing: 1px;
  transition:
    opacity 0.15s,
    transform 0.15s;
}

.btn-start:active {
  opacity: 0.85;
  transform: scale(0.98);
}

.btn-start:hover {
  color: #1a1a2e;
  opacity: 0.9;
}

.cta-hint {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: 16px;
}

/* ===== Seeds ===== */

.seeds {
  padding: 0 24px 48px;
  max-width: var(--max-width);
  width: 100%;
}

.section-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.section-desc {
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-bottom: 24px;
  line-height: 1.6;
}

.seed-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.seed-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 18px 20px;
  transition: background 0.2s;
}

.seed-card:hover {
  background: var(--bg-card-hover);
}

.seed-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.seed-brewer {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
  background: rgba(232, 168, 80, 0.1);
  padding: 3px 10px;
  border-radius: 20px;
}

.seed-rating {
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 1px;
}

.seed-name {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.seed-coffee {
  font-size: 0.82rem;
  color: var(--text);
  margin-bottom: 3px;
}

.seed-flavors {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.seed-author {
  font-size: 0.72rem;
  color: var(--text-dim);
  opacity: 0.7;
}

/* ===== Community ===== */

.community {
  text-align: center;
  padding: 0 24px 48px;
  max-width: var(--max-width);
  width: 100%;
}

.btn-fork {
  display: inline-block;
  margin-top: 20px;
  background: transparent;
  color: var(--text);
  border: 1px solid #444466;
  font-size: 1rem;
  font-weight: 500;
  padding: 12px 32px;
  border-radius: 8px;
  letter-spacing: 0.5px;
  transition:
    border-color 0.2s,
    color 0.2s;
}

.btn-fork:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== Footer ===== */

.footer {
  text-align: center;
  padding: 40px 24px;
  max-width: var(--max-width);
  width: 100%;
  border-top: 1px solid #222244;
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 2;
}

.footer-brand {
  font-weight: 600;
  color: var(--text);
  font-size: 0.88rem;
}

.footer a {
  color: var(--text-dim);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer a:hover {
  color: var(--accent);
}

/* ===== Responsive: Tablet+ ===== */

@media (min-width: 600px) {
  .concepts {
    flex-direction: row;
  }

  .concept-card {
    flex: 1;
  }

  .seed-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .hero-brand {
    font-size: 3rem;
  }

  .seed-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

/* ===== Reduced Motion ===== */

@media (prefers-reduced-motion: reduce) {
  .concept-card,
  .seed-card,
  .btn-start,
  .btn-fork {
    transition: none;
  }
}