/* -------------------------------------------------------------------
   LIGHT MODE (Default)
   Matches the bright, clean look of the PCA website with Navy headers
------------------------------------------------------------------- */
:root {
  /* --- Primary Brand Colors (Navy Blue) --- */
  --md-primary-fg-color:        #0D233A; 
  --md-primary-fg-color--light: #1A3654; 
  --md-primary-fg-color--dark:  #061424; 
  --md-primary-bg-color:        #FFFFFF; 

  /* --- Accent Brand Colors (PCA Logo Cyan/Light Blue) --- */
  --md-accent-fg-color:         #00A3E0; 
  --md-accent-fg-color--transparent: rgba(0, 163, 224, 0.1); 
  --md-accent-bg-color:         #FFFFFF; 
}

/* -------------------------------------------------------------------
   DARK MODE (Slate)
   Inverts the background but keeps the PCA branding recognizable
------------------------------------------------------------------- */
[data-md-color-scheme="slate"] {
  --md-primary-fg-color:        #121E2D; 
  --md-primary-bg-color:        #FFFFFF;
  --md-accent-fg-color:         #33B5E5; 
  --md-accent-bg-color:         #000000;
  --md-default-bg-color:        #0A131E; 
}

/* =========================================
   HERO BANNER & FEATURE CARDS
   ========================================= */

.md-hero {
  /* Background respects PCA's Navy Blue from our variables */
  background-color: var(--md-primary-fg-color);
  background-image: url('../assets/images/hero-image.png');
  background-size: cover;
  background-position: center right;
  color: #FFFFFF; 
  /* Make it fill the viewport minus the header (approx 96px) */
  min-height: calc(100vh - 96px); 
  display: flex;
  align-items: center;
  padding: 2rem 1rem; 
  margin-bottom: 2rem;
  overflow: hidden; /* Prevents scrollbars during animations */
}

.md-hero__inner.md-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
  max-width: 1280px;
  width: 100%;
}

@media screen and (min-width: 960px) {
  .md-hero__inner.md-grid {
    grid-template-columns: 2fr 1.5fr;
  }
}

/* --- ANIMATIONS --- */
/* 1. Define the slide-up fade keyframes */
@keyframes slideUpFade {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 2. Apply it to the hero content on load */
.md-hero__content {
  text-align: left;
  opacity: 0; /* Start hidden */
  animation: slideUpFade 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.1s forwards;
}

/* 3. Base state for the scroll-reveal cards */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 4. The class added by JavaScript when scrolled into view */
.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Respect user preferences for reduced motion */
@media (prefers-reduced-motion: reduce) {
  .md-hero__content, .reveal-on-scroll {
    animation: none;
    transition: none;
    opacity: 1;
    transform: none;
  }
}

/* --- TYPOGRAPHY --- */
.md-hero h1 {
  color: #FFFFFF;
  font-weight: 800;
  font-size: 3rem;
  line-height: 1.1;
  margin-bottom: 0.75rem;
  letter-spacing: -1px;
}

.md-hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  font-weight: 300;
  max-width: 600px;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

/* --- CALL-TO-ACTION BUTTONS --- */
.md-hero__buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.md-hero__button {
  background-color: var(--md-accent-fg-color);
  color: #FFFFFF;
  padding: 0.9rem 1.8rem;
  border-radius: 0.3rem;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  transition: background-color 0.2s, transform 0.1s;
  box-shadow: 0 4px 15px rgba(0, 163, 224, 0.3);
}

.md-hero__button:hover {
  background-color: #0089C1; 
  color: #FFFFFF;
  transform: translateY(-2px);
}

.md-hero__button--secondary {
  background-color: transparent;
  color: #FFFFFF;
  border: 2px solid #FFFFFF;
  box-shadow: none;
}

.md-hero__button--secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.8);
}

/* --- FEATURE CARDS (Below the Banner) --- */
.md-cards-container.md-grid {
  margin-top: 2rem;
  margin-bottom: 4rem;
}

.md-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.md-card {
  background: var(--md-default-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  padding: 1.5rem;
  border-radius: 0.5rem;
  text-decoration: none;
  color: inherit;
  /* Include transition for both the hover effect and the scroll reveal */
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s, opacity 0.7s, transform 0.7s;
  display: flex;
  flex-direction: column;
}

.md-card:hover {
  transform: translateY(-5px) !important; /* Force override of the scroll reveal transform */
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border-color: var(--md-accent-fg-color);
}

.md-card h3 {
  margin: 0;
  color: var(--md-default-fg-color);
  font-size: 1.3rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.md-card h3 span.icon {
  font-family: 'Material Icons';
  color: var(--md-accent-fg-color);
  font-size: 1.5rem;
}

.md-card p {
  color: var(--md-default-fg-color--light);
  font-size: 1rem;
  margin: 1rem 0 0 0;
  flex-grow: 1;
  line-height: 1.5;
}

/* =========================================
   GLOBAL LAYOUT OVERRIDES
   ========================================= */
/* Hide "Documentation Hub" title row in primary navigation */
.md-sidebar .md-nav--primary > .md-nav__title {
  color: #00395d;
  font-weight: 900;
  display: none; 
}

.md-nav__item--section>.md-nav__link {
  font-size: large;
}


/* Only the current page link should be blue */
.md-nav__link--active {
  color: var(--md-accent-fg-color) !important;
}

/* Keep section headings / section index links grey when not active */
.md-nav__item--section > .md-nav__link {
  color: var(--md-default-fg-color--light);
  font-size: large;
}

/* Optional: keep the same blue on hover as on active */
.md-nav__item--section > .md-nav__link:hover,
.md-nav__link:hover {
  color: var(--md-accent-fg-color);
}