/* RU4M Brand Colors
   Gradient: linear-gradient(180deg, #2ccf6a, #0985cc)
   Green: #2ccf6a  |  Blue: #0985cc
*/
:root {
  --ru4m-green: #2ccf6a;
  --ru4m-blue: #0985cc;
  --ru4m-gradient: linear-gradient(180deg, #2ccf6a, #0985cc);
  --ru4m-gradient-h: linear-gradient(135deg, #2ccf6a, #0985cc);
  --md-primary-fg-color: #1B2A5B;
  --md-primary-fg-color--light: #2D4080;
  --md-primary-fg-color--dark: #111D42;
  --md-accent-fg-color: #2ccf6a;
  --md-accent-fg-color--transparent: rgba(44, 207, 106, 0.1);
}

[data-md-color-scheme="slate"] {
  --md-primary-fg-color: #2D4080;
  --md-primary-fg-color--light: #4060B0;
  --md-primary-fg-color--dark: #1B2A5B;
  --md-accent-fg-color: #3ddb7a;
  --md-accent-fg-color--transparent: rgba(61, 219, 122, 0.1);
}

.md-tabs {
  background-color: var(--md-primary-fg-color--dark);
}

[data-md-color-scheme="slate"] .md-tabs {
  background-color: #0a1225;
}

.md-header__button.md-logo img {
  height: 1.8rem;
  width: auto;
}

/* Desktop screenshot styling — wider than phone mockups */
.md-content img {
  max-width: 800px;
  width: 100%;
  display: block;
  margin: 1rem auto;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

[data-md-color-scheme="slate"] .md-content img {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  filter: brightness(0.95);
}

/* Step numbering — gradient left border */
.md-typeset h3 {
  border-left: 3px solid var(--ru4m-green);
  padding-left: 0.8rem;
}

/* Admonition — tip uses green, info uses blue */
.md-typeset .admonition.tip,
.md-typeset details.tip {
  border-color: var(--ru4m-green);
}

.md-typeset .tip > .admonition-title,
.md-typeset .tip > summary {
  background-color: rgba(44, 207, 106, 0.1);
}

.md-typeset .admonition.info,
.md-typeset details.info {
  border-color: var(--ru4m-blue);
}

.md-typeset .info > .admonition-title,
.md-typeset .info > summary {
  background-color: rgba(9, 133, 204, 0.1);
}

.md-nav__link--active {
  color: var(--ru4m-green) !important;
  font-weight: 600;
}

.md-search-result mark {
  background-color: rgba(44, 207, 106, 0.2);
  color: inherit;
}

.md-typeset hr {
  border: none;
  height: 2px;
  background: var(--ru4m-gradient-h);
  opacity: 0.4;
}

.md-sidebar__scrollwrap::-webkit-scrollbar-thumb {
  background: var(--ru4m-gradient);
  border-radius: 4px;
}

/* Feature cards on homepage */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  margin: 2.5rem 0;
}

@media (max-width: 768px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 12px;
  padding: 1.5rem;
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(9, 133, 204, 0.12);
  border-color: var(--ru4m-blue);
}

.feature-card h3 {
  border-left: none;
  padding-left: 0;
  margin-top: 0;
  font-size: 1.1rem;
}

.feature-card p {
  font-size: 0.9rem;
  line-height: 1.5;
}