/* MiSTer-DB9 landing-page styling. Builds on Material's CSS variables so the
   hero and cards track the active (light/dark) palette automatically. */

:root {
  --db9-accent: var(--md-accent-fg-color);
}

/* ---- Hero ---------------------------------------------------------------- */

.db9-hero {
  background:
    radial-gradient(1200px 500px at 80% -10%,
      color-mix(in srgb, var(--md-primary-fg-color) 28%, transparent), transparent 70%),
    linear-gradient(180deg,
      color-mix(in srgb, var(--md-primary-fg-color) 10%, transparent), transparent);
  padding: 3.5rem 0 2.5rem;
}

.db9-hero__inner {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 2rem;
  align-items: center;
}

.db9-hero__title {
  font-weight: 800;
  line-height: 1.1;
  font-size: 2.4rem;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.db9-hero__subtitle {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--md-default-fg-color--light);
  max-width: 34rem;
  margin: 0 0 1.5rem;
}

.db9-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.db9-hero__note {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--md-default-fg-color--lighter);
  margin: 0;
}

.db9-hero__art {
  display: flex;
  justify-content: center;
}

.db9-hero__art img {
  width: min(100%, 320px);
  filter: drop-shadow(0 12px 30px rgba(0, 0, 0, 0.35));
}

/* ---- Section scaffolding ------------------------------------------------- */

.db9-section-title {
  font-weight: 700;
  font-size: 1.5rem;
  margin: 0 0 1.5rem;
  text-align: center;
}

.db9-features,
.db9-install__inner {
  padding: 3rem 0;
}

/* ---- Feature pillars / cards --------------------------------------------- */

.db9-pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.db9-pillar {
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 0.8rem;
  padding: 1.5rem;
  background: var(--md-default-bg-color);
}

.db9-pillar h3 {
  margin: 0 0 0.2rem;
  font-size: 1.1rem;
}

.db9-pillar > p {
  margin: 0 0 1rem;
  color: var(--md-default-fg-color--light);
  font-size: 0.8rem;
}

.db9-pillar--pro {
  border-color: color-mix(in srgb, var(--md-accent-fg-color) 45%, transparent);
}

.db9-tag {
  font-family: var(--md-code-font);
  font-size: 0.7rem;
  background: color-mix(in srgb, var(--md-accent-fg-color) 18%, transparent);
  color: var(--md-accent-fg-color);
  padding: 0.1rem 0.4rem;
  border-radius: 0.3rem;
  vertical-align: middle;
}

.db9-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.db9-card {
  border-radius: 0.6rem;
  padding: 0.9rem;
  background: color-mix(in srgb, var(--md-primary-fg-color) 6%, transparent);
}

.db9-card h4 {
  margin: 0 0 0.3rem;
  font-size: 0.9rem;
}

.db9-card p {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--md-default-fg-color--light);
}

/* ---- Install steps ------------------------------------------------------- */

.db9-install {
  background: color-mix(in srgb, var(--md-primary-fg-color) 5%, transparent);
}

.db9-steps {
  list-style: none;
  margin: 0 auto 1.5rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  max-width: 60rem;
}

.db9-steps li {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
}

.db9-steps__n {
  flex: 0 0 auto;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  background: var(--md-accent-fg-color);
  color: var(--md-accent-bg-color, #000);
}

.db9-steps h4 {
  margin: 0 0 0.3rem;
  font-size: 0.9rem;
}

.db9-steps p {
  margin: 0;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--md-default-fg-color--light);
}

.db9-install__cta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* ---- Responsive ---------------------------------------------------------- */

@media screen and (max-width: 76.1875em) {
  .db9-hero__inner { grid-template-columns: 1fr; }
  .db9-hero__art { order: -1; }
  .db9-pillars { grid-template-columns: 1fr; }
  .db9-steps { grid-template-columns: 1fr; max-width: 30rem; }
}

@media screen and (max-width: 44.9375em) {
  .db9-hero__title { font-size: 1.9rem; }
  .db9-cards { grid-template-columns: 1fr; }
}