/* Brand palette mapped to Material for MkDocs CSS variables */

:root {
  /* Primary: cyan from the VISUALLI logo (#12C7D3) */
  --md-primary-fg-color: #12C7D3;
  --md-primary-fg-color--light: #64e3eb;
  --md-primary-fg-color--dark: #0ea5ad;

  /* Accent: orange from the logo (#F28C16) */
  --md-accent-fg-color: #F28C16;

  /* Links use accent for consistency */
  --md-typeset-a-color: var(--md-accent-fg-color);

  /* Brand gradient across VISUALLI tones */
  --brand-gradient: linear-gradient(90deg,
    #12C7D3 0%,
    #325E8C 10%,
    #8A70A6 20%,
    #F54A57 30%,
    #FF6C4D 40%,
    #F28C16 50%,
    #FFD347 60%,
    #12C7D3 70%,
    #7F7F7F 80%,
    #8D8D8D 90%,
    #12C7D3 100%
  );
  /* Site title used in header banner (rendered inside the clickable logo link) */
  --site-title: "wiki.visualli.ai";
}

[data-md-color-scheme="slate"] {
  /* Keep brand colors in dark mode */
  --md-primary-fg-color: #12C7D3;
  --md-primary-fg-color--light: #5bd9e2;
  --md-primary-fg-color--dark: #0b8b93;
  --md-accent-fg-color: #F28C16;
  --md-typeset-a-color: var(--md-accent-fg-color);
}

/* Header: solid black banner with thin gradient line at bottom */
.md-header {
  background-color: #000000;
  background-image: none; /* remove previous gradient fill */
  position: relative; /* enable bottom border pseudo-element */
}

.md-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px; /* very thin gradient line */
  background-image: var(--brand-gradient);
  background-size: 100% 100%;
  background-repeat: no-repeat;
}

/* Make the left logo act as the full clickable banner title */
.md-header__button.md-logo {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  width: auto !important; /* expand clickable area to include text */
  max-width: none !important;
  padding: 0 .5rem; /* small horizontal padding for comfortable click */
  margin-right: auto; /* keep search + palette icons right-aligned */
}
.md-header__button.md-logo::after {
  content: var(--site-title);
  color: #fff;
  font-weight: 600;
  font-size: 1.1rem; /* reduced to match earlier banner scale */
  line-height: 1;
  white-space: nowrap;
}

/* Center the header options (palette + search) on desktop */
.md-header__inner { position: relative; }
@media (min-width: 768px) {
  .md-header__options {
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    height: 100%;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 5; /* above gradient divider */
  }
  /* Ensure search occupies its natural width while centered */
  .md-header__options .md-search { max-width: none; }
}
/* Hide the original (non-clickable) header title to avoid duplicate text */
.md-header__title { display: none !important; }
.md-header__title * { display: none !important; }

/* 
   Table of Contents (Right Sidebar) - Improved Hierarchy
   Indents h3 headings (and deeper) to visually distinguish them from h2 headings.
*/
.md-nav--secondary .md-nav__list .md-nav__list {
  padding-left: 0.6rem;
  margin-left: 0.2rem;
  border-left: 1px solid var(--md-default-fg-color--lightest);
}

.md-nav--secondary .md-nav__list .md-nav__list .md-nav__item {
  padding-left: 0.3rem;
}

/* 
   Primary Navigation (Left Sidebar) - Match Hierarchy Style
   Apply indentation lines to Level 2 items AND deeper nested levels (Level 3+).
   Changed to generalized selector to support infinite nesting depth.
*/
.md-nav--primary .md-nav__item > .md-nav > .md-nav__list {
  padding-left: 0.6rem;
  margin-left: 0.2rem;
  border-left: 1px solid var(--md-default-fg-color--lightest);
}

.md-nav--primary .md-nav__item > .md-nav > .md-nav__list > .md-nav__item {
  padding-left: 0.3rem;
}

/* Hide Level 3+ (Deeply nested items) - REMOVED to show first-level headings under sections */
/* .md-nav--primary > .md-nav__list > .md-nav__item > .md-nav > .md-nav__list > .md-nav__item > .md-nav {
  display: none !important;
} */

/* Hide site title in left sidebar (primary nav) */
.md-nav--primary > .md-nav__title {
  display: none !important;
}

/* Reduce vertical gap between header and content */
.md-main__inner {
  padding-top: .2rem !important;
  margin-top: 0 !important;
}

/* Ensure content and sidebar start higher up */
.md-content, .md-sidebar {
  padding-top: 0 !important;
  margin-top: 0 !important;
}

/* Reduce top margin of the first heading if needed to pull text up further */
.md-typeset h1 {
  margin-top: 0 !important;
}