/* Light/Dark Mode Variables */
[data-md-color-scheme="slate"] {
  --md-primary-fg-color: #1a1d29;
  --md-primary-bg-color: #1a1d29;
  --md-accent-fg-color: #8b5cf6;
  --md-default-bg-color: #0f1019;
  --md-default-fg-color: #ffffff;
}

[data-md-color-scheme="slate"] .md-header {
  background-color: transparent !important;
  background: linear-gradient(
    135deg,
    rgba(26, 29, 41, 0.6) 0%,
    rgba(45, 27, 105, 0.6) 50%,
    rgba(109, 40, 217, 0.6) 100%
  ) !important;
}

/* Header — Dark mode */
[data-md-color-scheme="slate"] .md-header {
  background: linear-gradient(135deg, #1a1d29 0%, #2d1b69 50%, #6d28d9 100%);
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
  color: #f1eaff;
  position: relative;
}

[data-md-color-scheme="slate"] .md-header__title {
  color: #f1eaff;
  font-weight: 600;
}

[data-md-color-scheme="slate"] .md-tabs__link {
  color: #c4b5fd;
  font-weight: 500;
  transition: color 0.2s ease;
}

[data-md-color-scheme="slate"] .md-tabs__link:hover {
  color: #d8b4fe;
}

[data-md-color-scheme="slate"] .md-tabs__link--active {
  color: #a78bfa;
  font-weight: 600;
  border-bottom: 2px solid #8b5cf6;
}

/* Header — Light mode */
[data-md-color-scheme="default"] .md-header {
  background: linear-gradient(90deg, #ede9fe 0%, #d8b4fe 50%, #8b5cf6 100%);
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.2);
  color: #1e293b;
  position: relative;
}

[data-md-color-scheme="default"] .md-header__title {
  color: #4c1d95;
  font-weight: 700;
}

/* Tabs bar in dark mode */
[data-md-color-scheme="slate"] .md-tabs {
  background: rgba(26, 29, 41, 0.6) !important;
  backdrop-filter: blur(4px);
}

/* Tabs bar in light mode */
[data-md-color-scheme="default"] .md-tabs {
  background: rgba(255, 255, 255, 0.9) !important;
  backdrop-filter: blur(4px);
}

[data-md-color-scheme="default"] .md-tabs__link {
  color: #6b7280;
  font-weight: 500;
  transition: color 0.2s ease;
}

[data-md-color-scheme="default"] .md-tabs__link:hover {
  color: #7c3aed;
}

[data-md-color-scheme="default"] .md-tabs__link--active {
  color: #6d28d9;
  font-weight: 600;
  border-bottom: 2px solid #7c3aed;
}

/* Header Wave Animation — Dark & Light */
[data-md-color-scheme="slate"] .md-header::before,
[data-md-color-scheme="default"] .md-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'%3E%3Cpath d='M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z' opacity='.2' fill='%23a78bfa'%3E%3C/path%3E%3C/svg%3E") repeat-x;
  background-size: 1200px 120px;
  opacity: 0.2;  /* was 0.1 */
  animation: wave 10s linear infinite;
  z-index: 0;
}

@keyframes wave {
  0% { transform: translateX(0); }
  100% { transform: translateX(-1200px); }
}

/* Main Background */
[data-md-color-scheme="slate"] .md-main {
  background: linear-gradient(135deg, #0f1019 0%, #1a1d29 100%);
}

[data-md-color-scheme="default"] .md-main {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
}

/* Navigation */
[data-md-color-scheme="slate"] .md-nav__title {
  color: #8b5cf6;
  font-weight: 600;
}

[data-md-color-scheme="slate"] .md-nav__link--active {
  color: #a78bfa;
  border-left: 3px solid #8b5cf6;
}

[data-md-color-scheme="default"] .md-nav__title {
  color: #7c3aed;
  font-weight: 600;
}

[data-md-color-scheme="default"] .md-nav__link--active {
  color: #8b5cf6;
  border-left: 3px solid #7c3aed;
}

/* Code Blocks */
[data-md-color-scheme="slate"] .md-typeset pre {
  background: #1a1d29;
  border-radius: 8px;
}

[data-md-color-scheme="default"] .md-typeset pre {
  background: #f8fafc;
  border-radius: 8px;
}

/* Buttons */
.md-button {
  background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
  border: none;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.md-button:hover {
  background: linear-gradient(135deg, #7c3aed 0%, #8b5cf6 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4);
}

/* Search */
[data-md-color-scheme="slate"] .md-search__form {
  background: #1a1d29;
  border-radius: 8px;
}

[data-md-color-scheme="default"] .md-search__form {
  background: #ffffff;
  border-radius: 8px;
}

/* Tables */
[data-md-color-scheme="slate"] .md-typeset table:not([class]) {
  background: #1a1d29;
  border-radius: 8px;
}

[data-md-color-scheme="default"] .md-typeset table:not([class]) {
  background: #ffffff;
  border-radius: 8px;
}

/* Admonitions */
[data-md-color-scheme="slate"] .md-typeset .admonition {
  background: #1a1d29;
  border-left: 4px solid #8b5cf6;
  border-radius: 8px;
}

[data-md-color-scheme="default"] .md-typeset .admonition {
  background: #f8fafc;
  border-left: 4px solid #8b5cf6;
  border-radius: 8px;
}

/* Footer */
[data-md-color-scheme="slate"] .md-footer {
  background: #0f1019;
  border-top: 1px solid rgba(139, 92, 246, 0.2);
}

[data-md-color-scheme="default"] .md-footer {
  background: #ffffff;
  border-top: 1px solid rgba(139, 92, 246, 0.3);
}

/* Scrollbar */
[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
  border-radius: 4px;
}

[data-md-color-scheme="default"] ::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
  border-radius: 4px;
}