/* === 1. HEADER: Starts transparent, turns indigo later === */
.md-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: none !important;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

/* Transparent before scroll */
.md-header:not(.scrolled) {
  background-color: rgba(0, 0, 0, 0.01) !important;

}

/* After scroll past hero */
.md-header.scrolled {
  background-color: var(--md-primary-fg-color);
  box-shadow: var(--md-shadow-z2);
}

/* === 2. HERO BANNER === */
.hero-banner {
  background:
    linear-gradient(to bottom, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0)),
    url('../assets/banner1.png') no-repeat center center;
  background-size: cover;
  color: white;
  text-align: center;

  width: 100vw;
  margin-left: calc(50% - 50vw);

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  min-height: 100vh;
  padding: 6rem 2rem 2rem;
  box-sizing: border-box;

  opacity: 0;
  transition: opacity 1s ease-in-out;
  position: relative;
  z-index: 0; /* Ensure it's underneath the header */
}

/* === 3. PAGE OFFSET FIX: eliminate top margin under fixed header === */
.md-main__inner {
  margin-top: 0 !important;
}
.md-content {
  margin-top: 0 !important;
}

/* === 4. HEADER TEXT COLOR: White on hero, revert on scroll === */
.md-header__title,
.md-header__button,
.md-search__input,
.md-search__icon,
.md-nav__link,
.md-icon {
  color: white !important;
  fill: white !important;
  transition: color 0.3s ease, fill 0.3s ease;
}

.md-header.scrolled .md-header__title,
.md-header.scrolled .md-header__button,
.md-header.scrolled .md-search__input,
.md-header.scrolled .md-search__icon,
.md-header.scrolled .md-nav__link,
.md-header.scrolled .md-icon {
  color: var(--md-primary-bg-color) !important;
  fill: var(--md-primary-bg-color) !important;
}

.hero-banner h1,
.hero-banner p {
  color: white !important;
  text-shadow: 0 2px 4px rgba(0,0,0,0.4); /* Optional: adds readability over image */
}


/* === Sidebar Fade (desktop only) === */
@media screen and (min-width: 76.25em) {
  .md-sidebar--primary {
    transition: opacity 0.3s ease;
  }

/* === Ensure sidebar menu text matches theme mode === */
.md-sidebar__inner,
.md-nav__title,
.md-nav__link {
  color: var(--md-typeset-color) !important;
  background-color: var(--md-default-bg-color);
  transition: color 0.3s ease, background-color 0.3s ease;
}

/* Optional: add better hover contrast */
.md-nav__link:hover {
  background-color: var(--md-accent-bg-color);
}


}