:root {
  --md-primary-fg-color: #455a64;
}

/* ── Hero ── */
.landing-hero {
  text-align: center;
  padding: 4rem 1rem 3rem;
}

.landing-hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
  background: linear-gradient(135deg, #ffc107, #ff9800);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.landing-hero h2 {
  font-size: 1.5rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 1.5rem;
}

.landing-hero p {
  color: rgba(255, 255, 255, 0.55);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.landing-hero .md-button {
  margin: 0.3rem;
}

/* ── Screenshots ── */
.screenshots-showcase {
  padding: 2rem 0;
}

.screenshots-showcase h2 {
  text-align: center;
  margin-bottom: 2rem;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto 3rem;
  padding: 0 1rem;
}

.screenshot-item {
  text-align: center;
}

.screenshot-item img {
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  width: 100%;
  transition: transform 0.3s ease;
}

.screenshot-item img:hover {
  transform: scale(1.03);
}

.screenshot-caption {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Phone screenshots: 2 columns */
.phone-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 500px;
  margin: 0 auto 3rem;
  padding: 0 1rem;
}

.screenshot-item.phone img {
  max-width: 200px;
  margin: 0 auto;
  display: block;
}

/* ── Features ── */
.features-section {
  padding: 2rem 0;
}

.features-section h2 {
  text-align: center;
  margin-bottom: 2rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

.feature-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 1.5rem;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.feature-card:hover {
  border-color: rgba(255, 193, 7, 0.3);
  background: rgba(255, 255, 255, 0.06);
}

.feature-card h3 {
  font-size: 1.05rem;
  margin-top: 0;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
  line-height: 1.5;
}

/* ── Requirements ── */
.requirements-section {
  text-align: center;
  padding: 2rem 1rem;
}

.requirements-section ul {
  list-style: none;
  padding: 0;
}

.requirements-section li {
  color: rgba(255, 255, 255, 0.6);
  margin: 0.5rem 0;
}

.requirements-section li::before {
  content: "→ ";
  color: #ffc107;
}

/* ── Footer ── */
.footer-section {
  text-align: center;
  padding: 1rem;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.9rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.5);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .landing-hero h1 {
    font-size: 2.5rem;
  }
  .landing-hero h2 {
    font-size: 1.15rem;
  }
  .screenshot-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .screenshot-item.phone img {
    max-width: 150px;
  }
}