/* ===========================================
   E3SM AIG - Custom Styling
   =========================================== */

:root {
  /* E3SM Logo Colors - Ocean Blue & Earth Green */
  --md-primary-fg-color: #1a5276;
  --md-primary-fg-color--light: #2980b9;
  --md-primary-fg-color--dark: #154360;
  --md-accent-fg-color: #27ae60;
  --e3sm-ocean-blue: #1a5276;
  --e3sm-sky-blue: #2980b9;
  --e3sm-earth-green: #27ae60;
  --e3sm-forest-green: #1e8449;
}

/* Dark mode enhancements */
[data-md-color-scheme="slate"] {
  --md-default-bg-color: #1a1a2e;
  --md-default-bg-color--light: #16213e;
}

/* ===========================================
   Header Styling
   =========================================== */

.md-header,
.md-tabs {
  background: linear-gradient(135deg, rgba(26, 82, 118, 0.95), rgba(39, 174, 96, 0.85));
  backdrop-filter: blur(10px);
}

[data-md-color-scheme="slate"] .md-header,
[data-md-color-scheme="slate"] .md-tabs {
  background: linear-gradient(135deg, rgba(21, 67, 96, 0.95), rgba(30, 132, 73, 0.85));
}

/* Logo styling - clean with subtle effects */
.md-header__button.md-logo img,
.md-header__button.md-logo svg {
  transition: transform 0.2s ease;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
}

.md-header__button.md-logo:hover img,
.md-header__button.md-logo:hover svg {
  transform: scale(1.08);
}

/* Dark mode logo adjustments - swap to night version */
[data-md-color-scheme="slate"] .md-header__button.md-logo img {
  filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.4));
  content: url("../images/E3SM_Logo.png");
}

/* Also swap logo in hero section for dark mode */
[data-md-color-scheme="slate"] .hero-logo img {
  content: url("../images/E3SM_Logo.png");
}



/* ===========================================
   Hero Section
   =========================================== */

/* ===========================================
   Hero Section
   =========================================== */

.hero {
  padding: 4rem 1rem;
  margin: -1rem -1rem 2rem -1rem;
  /* Full width negative margin */
  text-align: center;
  background: var(--md-default-bg-color);
  /* Match site bg */
  min-height: 85vh;
  /* Take up most of the expanded view */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

/* Hero Content */
.hero-logo img {
  width: 480px;
  height: 257px;
  margin-bottom: 2rem;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.1));
}

.hero h1 {
  font-size: 3.5rem !important;
  font-weight: 800 !important;
  margin-bottom: 1rem !important;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #1a5276 0%, #27ae60 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  /* Fallback */
}

.hero .hero-subtitle {
  font-size: 1.4rem;
  color: var(--md-default-fg-color--light);
  max-width: 600px;
  margin: 0 auto 2.5rem auto;
  line-height: 1.6;
}

/* Hero Actions */
.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
  width: 100%;
  /* Ensure container invites full width on mobile */
}

/* Base button improvements */
.hero .md-button {
  font-size: 1.05rem;
  padding: 0.75rem 1.75rem;
  /* Larger touch target */
  font-weight: 600;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  /* Smoother interaction */
  letter-spacing: 0.02em;
}

.md-button--pill {
  border-radius: 99px !important;
}

/* Primary Button "Get Started" */
.hero .md-button--primary {
  background: linear-gradient(135deg, #1a5276 0%, #2980b9 100%);
  border: none;
  box-shadow: 0 4px 15px rgba(26, 82, 118, 0.3);
}

.hero .md-button--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(26, 82, 118, 0.45);
}

/* Active State for Tactile Feel */
.hero .md-button:active {
  transform: scale(0.96) translateY(0);
  /* Press effect */
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.hero .md-button:not(.md-button--primary) {
  background: transparent;
  border: 2px solid var(--md-default-fg-color--lightest);
  color: var(--md-default-fg-color);
}

.hero .md-button:not(.md-button--primary):hover {
  border-color: var(--md-primary-fg-color);
  background: var(--md-default-bg-color--lightest);
}

/* Dark mode adjustments */
[data-md-color-scheme="slate"] .hero h1 {
  background: linear-gradient(135deg, #2980b9 0%, #58d68d 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

/* ===========================================
   Card Grid System
   =========================================== */

.grid.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.grid.cards>ul {
  display: contents;
  list-style: none;
  padding: 0;
  margin: 0;
}

.grid.cards>ul>li {
  background: var(--md-default-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.grid.cards>ul>li:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
  border-color: var(--md-primary-fg-color);
}

.grid.cards .twemoji,
.grid.cards .lg {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.5rem;
}

/* ===========================================
   Focus Cards
   =========================================== */

.grid:not(.cards) {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.focus-card {
  background: linear-gradient(145deg, var(--md-default-bg-color), var(--md-default-bg-color--light));
  border-radius: 12px;
  padding: 1.5rem;
  border-left: 4px solid var(--md-primary-fg-color);
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.focus-card:hover {
  transform: translateX(5px);
  border-left-color: var(--md-accent-fg-color);
}

.focus-card h3 {
  margin-top: 0;
  font-size: 1.1rem;
}

/* ===========================================
   Community Section
   =========================================== */

.community-section {
  background: linear-gradient(135deg, rgba(26, 82, 118, 0.1), rgba(39, 174, 96, 0.1));
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
}

[data-md-color-scheme="slate"] .community-section {
  background: linear-gradient(135deg, rgba(26, 82, 118, 0.2), rgba(39, 174, 96, 0.2));
}

/* ===========================================
   Admonitions Enhancement
   =========================================== */

.md-typeset .admonition,
.md-typeset details {
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.md-typeset .admonition.success,
.md-typeset details.success {
  border-left-width: 4px;
}

/* ===========================================
   Code Blocks
   =========================================== */

.md-typeset pre>code {
  border-radius: 10px;
}

.md-typeset .highlight {
  border-radius: 10px;
}

/* ===========================================
   Buttons
   =========================================== */

.md-typeset .md-button {
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.md-typeset .md-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

/* ===========================================
   Key Styling
   =========================================== */

.md-typeset kbd {
  border-radius: 6px;
  box-shadow: 0 3px 0 rgba(0, 0, 0, .15);
}

/* ===========================================
   Annotations
   =========================================== */

.md-annotation__index {
  border-radius: 50%;
  transition: all 0.2s ease;
}

.md-annotation__index:hover {
  transform: scale(1.2);
}

/* ===========================================
   Footer
   =========================================== */

.md-footer {
  background: linear-gradient(135deg, #1a1a2e, #16213e);
}

/* ===========================================
   Responsive Design
   =========================================== */

@media (max-width: 768px) {
  .hero {
    padding: 3rem 1.5rem;
    /* More breathing room */
    margin: -0.5rem -0.25rem 1rem -0.25rem;
  }

  .hero h1 {
    font-size: 2.5rem !important;
    /* Slightly larger on mobile */
  }

  .hero p {
    font-size: 1.1rem;
  }

  /* Full-width responsive buttons */
  .hero-actions {
    flex-direction: column;
    width: 100%;
    max-width: 320px;
    /* Sensible max width for buttons */
    margin: 0 auto 2rem auto;
  }

  .hero .md-button {
    width: 100%;
    display: block;
    text-align: center;
    padding: 0.9rem 1.5rem;
    /* Taller touch target */
  }

  /* Grid adjustments */
  .grid.cards,
  .grid:not(.cards) {
    grid-template-columns: 1fr;
  }
}

/* ===========================================
   Animations
   =========================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.md-content {
  animation: fadeIn 0.4s ease-out;
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}