/* =========================================================================
   EntityAlignment-Nexus - modern documentation theme (works in light & dark schemes)
   ========================================================================= */

:root {
  --ea-blue:   #58a6ff;
  --ea-purple: #a371f7;
  --ea-pink:   #f778ba;
  --ea-green:  #3fb950;
  --ea-grad:   linear-gradient(90deg, #58a6ff 0%, #a371f7 50%, #f778ba 100%);
  --ea-radius: 14px;
}

/* Brand accent */
[data-md-color-scheme="slate"] {
  --md-primary-fg-color: #0d1117;
  --md-default-bg-color: #0b0f17;
  --md-accent-fg-color: var(--ea-blue);
  --md-typeset-a-color: #79c0ff;
}
[data-md-color-scheme="default"] {
  --md-accent-fg-color: #6d28d9;
}

/* Smooth scrolling + nicer base typography */
html { scroll-behavior: smooth; }
.md-typeset { line-height: 1.65; }

/* -------------------------------------------------------------------------
   Animated gradient hero (landing page)
   ------------------------------------------------------------------------- */
.ea-hero {
  position: relative;
  border-radius: var(--ea-radius);
  padding: 2.6rem 1.6rem;
  margin: .4rem 0 1.6rem 0;
  text-align: center;
  color: #fff;
  overflow: hidden;
  background: linear-gradient(120deg, #1f6feb, #8957e5, #bf4b8a, #1f6feb);
  background-size: 300% 300%;
  animation: ea-flow 14s ease infinite;
  box-shadow: 0 14px 40px rgba(88, 166, 255, 0.28);
}
.ea-hero::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 20% 10%, rgba(255,255,255,.18), transparent 40%);
  pointer-events: none;
}
.ea-hero h1 { color: #fff; margin: 0 0 .4rem 0; font-weight: 800; letter-spacing: .5px; font-size: 2.3rem; }
.ea-hero p  { color: #eef; margin: 0 auto; max-width: 46rem; font-size: 1rem; }

@keyframes ea-flow {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Gradient text accent */
.ea-gradient {
  background: var(--ea-grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; font-weight: 800;
}

/* -------------------------------------------------------------------------
   Headings: gradient accent bar
   ------------------------------------------------------------------------- */
.md-typeset h2 {
  position: relative;
  padding-left: .8rem;
  margin-top: 2.4rem;
  font-weight: 800;
  letter-spacing: -.01em;
}
.md-typeset h2::before {
  content: "";
  position: absolute; left: 0; top: .15em; bottom: .15em;
  width: 5px; border-radius: 6px;
  background: var(--ea-grad);
}
.md-typeset h3 { font-weight: 700; }

/* Horizontal rules become gradient dividers */
.md-typeset hr {
  border: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--ea-purple), transparent);
  opacity: .5;
}

/* -------------------------------------------------------------------------
   Cards (grid cards) - glow + lift on hover
   ------------------------------------------------------------------------- */
.md-typeset .grid.cards > ul > li,
.md-typeset .grid > .card {
  border-radius: var(--ea-radius);
  border: 1px solid var(--md-default-fg-color--lightest);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  background: linear-gradient(180deg, rgba(88,166,255,.04), transparent);
}
.md-typeset .grid.cards > ul > li:hover {
  transform: translateY(-4px);
  border-color: transparent;
  box-shadow: 0 10px 28px rgba(88,166,255,.22),
              0 0 0 1px rgba(163,113,247,.45) inset;
}
.md-typeset .grid.cards > ul > li > hr {
  background: var(--ea-grad); opacity: .35; height: 2px;
}

/* -------------------------------------------------------------------------
   Tables - rounded container, gradient header, row hover, zebra
   ------------------------------------------------------------------------- */
.md-typeset table:not([class]) {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--md-default-fg-color--lightest);
  box-shadow: 0 4px 18px rgba(0,0,0,.06);
}
.md-typeset table:not([class]) th {
  background: linear-gradient(90deg, rgba(88,166,255,.16), rgba(163,113,247,.16));
  font-weight: 700;
  border: none;
}
.md-typeset table:not([class]) td:first-child { font-weight: 600; }
[data-md-color-scheme="slate"] .md-typeset table:not([class]) tr:nth-child(even) {
  background: rgba(255,255,255,.02);
}
.md-typeset table:not([class]) tr:hover {
  background: rgba(88,166,255,.08);
  transition: background .15s ease;
}

/* -------------------------------------------------------------------------
   Mermaid - present every diagram inside a designed panel
   ------------------------------------------------------------------------- */
.md-typeset .mermaid {
  text-align: center;
  padding: 1.2rem;
  margin: 1.2rem 0;
  border-radius: var(--ea-radius);
  border: 1px solid var(--md-default-fg-color--lightest);
  background:
    radial-gradient(circle at 0% 0%, rgba(88,166,255,.07), transparent 45%),
    radial-gradient(circle at 100% 100%, rgba(163,113,247,.07), transparent 45%);
  box-shadow: 0 6px 22px rgba(0,0,0,.10);
}
[data-md-color-scheme="slate"] .md-typeset .mermaid {
  background:
    radial-gradient(circle at 0% 0%, rgba(88,166,255,.10), transparent 45%),
    radial-gradient(circle at 100% 100%, rgba(163,113,247,.10), transparent 45%),
    #0d1117;
}
.md-typeset .mermaid .edgeLabel { font-weight: 600; }

/* -------------------------------------------------------------------------
   Images / figures
   ------------------------------------------------------------------------- */
.md-typeset img { border-radius: 10px; }
.md-typeset figure img {
  box-shadow: 0 8px 28px rgba(0,0,0,.30);
  border: 1px solid var(--md-default-fg-color--lightest);
}
.md-typeset figcaption { opacity: .8; font-size: .82rem; }

/* -------------------------------------------------------------------------
   Admonitions - rounded with a soft glow
   ------------------------------------------------------------------------- */
.md-typeset .admonition,
.md-typeset details {
  border-radius: 12px;
  border-width: 0 0 0 4px;
  box-shadow: 0 4px 18px rgba(0,0,0,.10);
}

/* Code blocks */
.md-typeset pre > code {
  border-radius: 12px;
}
.md-typeset .highlight { border-radius: 12px; }

/* -------------------------------------------------------------------------
   Links - animated underline
   ------------------------------------------------------------------------- */
.md-typeset a:not(.md-button):not(.headerlink) {
  text-decoration: none;
  background-image: linear-gradient(var(--ea-purple), var(--ea-purple));
  background-size: 0% 2px; background-position: 0 100%; background-repeat: no-repeat;
  transition: background-size .25s ease;
}
.md-typeset a:not(.md-button):not(.headerlink):hover {
  background-size: 100% 2px;
}

/* -------------------------------------------------------------------------
   Buttons
   ------------------------------------------------------------------------- */
.md-typeset .md-button {
  border-radius: 999px;
  border: 0;
  font-weight: 700;
  background: var(--ea-grad);
  color: #fff !important;
  transition: transform .15s ease, box-shadow .15s ease;
}
.md-typeset .md-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(163,113,247,.4);
}

/* -------------------------------------------------------------------------
   Coloured "pill" labels (model family tags)
   ------------------------------------------------------------------------- */
.ea-pill {
  display: inline-block;
  padding: .14rem .66rem;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.18);
}
.ea-pill.structural { background: linear-gradient(90deg,#1f6feb,#58a6ff); }
.ea-pill.gnn        { background: linear-gradient(90deg,#8957e5,#a371f7); }
.ea-pill.side       { background: linear-gradient(90deg,#bf4b8a,#f778ba); }
.ea-pill.sota       { background: linear-gradient(90deg,#238636,#3fb950); }

/* -------------------------------------------------------------------------
   Navigation tabs - subtle active accent
   ------------------------------------------------------------------------- */
.md-tabs { border-bottom: 1px solid var(--md-default-fg-color--lightest); }
.md-tabs__link { opacity: .85; transition: opacity .15s ease; }
.md-tabs__link--active, .md-tabs__link:hover { opacity: 1; }

/* Custom scrollbar (dark scheme) */
[data-md-color-scheme="slate"] ::-webkit-scrollbar { width: 10px; height: 10px; }
[data-md-color-scheme="slate"] ::-webkit-scrollbar-track { background: #0d1117; }
[data-md-color-scheme="slate"] ::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--ea-blue), var(--ea-purple));
  border-radius: 999px; border: 2px solid #0d1117;
}