/* ----------------------------------------------------------------------------
   osw landing hero (docs/index.md)
   Full-bleed, centered hero: logo + headline + short text passage +
   call-to-action buttons over a soft accent gradient.
   Adapted from the OO-LD/oold-python docs.
---------------------------------------------------------------------------- */

.osw-hero {
  padding: 4.5rem 1rem 5rem;
  text-align: center;
}

.osw-hero__logo {
  width: 160px;
  max-width: 45%;
  height: auto;
  border-radius: 16%;
  filter: drop-shadow(0 10px 28px rgba(0, 0, 0, 0.18));
}

.osw-hero__title {
  margin: 1.4rem 0 0.3rem;
  font-size: 2.6rem;
  font-weight: 700;
  line-height: 1.15;
}

.osw-hero__tagline {
  margin: 0 auto 1.2rem;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--md-default-fg-color--light);
}

.osw-hero__text {
  max-width: 42rem;
  margin: 0 auto 2rem;
  font-size: 1.02rem;
  line-height: 1.7;
  color: var(--md-default-fg-color--light);
}

.osw-hero__actions .md-button {
  margin: 0.35rem 0.4rem;
}

/* The landing page is a short hero with no scrolling, so don't reserve the
   scrollbar gutter (the theme sets `scrollbar-gutter: stable` globally). */
html:has(.osw-hero) {
  scrollbar-gutter: auto;
}

/* Accent color (matches the theme's deep-orange accent) + gradient end. */
body:has(.osw-hero) {
  --osw-hero-accent: #ff6f00;
  --osw-hero-end: color-mix(in srgb, var(--osw-hero-accent) 35%, var(--md-default-bg-color));
}

/* One continuous gradient on the full-height content region: page background
   at the top, fading to the accent at the very bottom. Scoped to .md-main so
   the header, tabs and footer keep their own colors. */
body:has(.osw-hero) .md-main {
  background:
    radial-gradient(
      70% 55% at 50% 100%,
      color-mix(in srgb, var(--osw-hero-accent) 25%, transparent),
      transparent 72%
    ),
    linear-gradient(
      180deg,
      var(--md-default-bg-color) 30%,
      var(--osw-hero-end) 100%
    );
}

/* Landing page: hero starts flush under the tabs bar and spans full width. */
body:has(.osw-hero) .md-main__inner {
  margin-top: 0;
  max-width: none;
}

body:has(.osw-hero) .md-content__inner {
  margin: 0;
  padding: 0;
}

/* Hide the footer on the landing page only. */
body:has(.osw-hero) .md-footer {
  display: none;
}

@media screen and (max-width: 44.9375em) {
  .osw-hero {
    padding: 3rem 1rem 3.5rem;
  }
  .osw-hero__title {
    font-size: 2rem;
  }
  .osw-hero__tagline {
    font-size: 1.1rem;
  }
}