/* ============================================================================
   Moon — "Midnight" theme for MkDocs Material
   Indigo primary + violet accent, night-sky hero, GitBook-style polish.
   ========================================================================== */

:root {
  --moon-indigo: #4f46e5;        /* indigo-600 */
  --moon-indigo-600: #4f46e5;
  --moon-indigo-700: #4338ca;
  --moon-violet: #7c3aed;        /* violet-600 */
  --moon-violet-400: #a78bfa;
  --moon-night-1: #0b0a1f;
  --moon-night-2: #1e1b4b;       /* indigo-950 */
  --moon-night-3: #312e81;       /* indigo-900 */
  --moon-radius: 14px;
}

/* Palette overrides (config keeps primary/accent = indigo; we restyle them) */
[data-md-color-primary="indigo"] {
  --md-primary-fg-color: var(--moon-indigo);
  --md-primary-fg-color--light: #6366f1;
  --md-primary-fg-color--dark: var(--moon-indigo-700);
}
[data-md-color-accent="indigo"] {
  --md-accent-fg-color: var(--moon-violet);
}
[data-md-color-scheme="slate"] {
  --md-hue: 250;
  --md-default-bg-color: #0e0c22;
  --md-primary-fg-color: #6366f1;
  --md-accent-fg-color: var(--moon-violet-400);
}

/* Typography ------------------------------------------------------------- */
.md-typeset {
  font-feature-settings: "kern", "liga", "calt";
}
.md-typeset h1,
.md-typeset h2 {
  font-weight: 700;
  letter-spacing: -0.02em;
}
.md-typeset h2 {
  margin-top: 2.4em;
}

/* Header ----------------------------------------------------------------- */
.md-header {
  background: rgba(15, 13, 43, 0.92);
  backdrop-filter: saturate(140%) blur(8px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}
.md-header__title {
  font-weight: 700;
}

/* Announcement bar ------------------------------------------------------- */
.md-banner {
  background: linear-gradient(90deg, var(--moon-night-2), var(--moon-indigo-700) 55%, var(--moon-violet));
  color: #ffffff;
}
.md-banner__inner {
  text-align: center;
  font-size: 0.74rem;
}
.md-announce__link {
  color: #ffffff;
}
.md-announce__cta {
  margin-left: 0.4rem;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.md-banner a:hover {
  color: #ede9fe;
}

/* Hero ------------------------------------------------------------------- */
.moon-hero {
  position: relative;
  margin: -1.2rem -1.2rem 2.6rem;
  padding: 4rem 1.2rem 3.4rem;
  border-radius: 0 0 28px 28px;
  background:
    radial-gradient(900px 320px at 80% -10%, rgba(167, 139, 250, 0.35), transparent 60%),
    radial-gradient(700px 280px at 8% 10%, rgba(99, 102, 241, 0.28), transparent 55%),
    linear-gradient(160deg, var(--moon-night-1), var(--moon-night-2) 45%, var(--moon-night-3));
  overflow: hidden;
  isolation: isolate;
}
/* faint starfield */
.moon-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(1.4px 1.4px at 20% 30%, rgba(255,255,255,0.7), transparent),
    radial-gradient(1.2px 1.2px at 70% 20%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.6px 1.6px at 40% 70%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.1px 1.1px at 85% 60%, rgba(255,255,255,0.45), transparent),
    radial-gradient(1.3px 1.3px at 55% 45%, rgba(255,255,255,0.4), transparent);
  opacity: 0.7;
}
.moon-hero__inner {
  max-width: 46rem;
  margin: 0 auto;
  text-align: center;
}
.md-typeset .moon-hero h1 {
  color: #ffffff;
  font-size: 2.9rem;
  line-height: 1.05;
  margin: 0 0 0.4rem;
}
.moon-hero__tagline {
  color: #c7d2fe;
  font-size: 1.05rem;
  margin: 0 auto 1.8rem;
  max-width: 38rem;
}
.moon-hero .md-button {
  margin: 0.3rem 0.35rem 0;
  border-radius: 999px;
  padding: 0.5rem 1.3rem;
  font-weight: 600;
}
.moon-hero .md-button--primary {
  background: linear-gradient(135deg, var(--moon-indigo), var(--moon-violet));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.45);
}
.moon-hero .md-button--primary:hover {
  filter: brightness(1.08);
}
.moon-hero .md-button:not(.md-button--primary) {
  color: #ede9fe;
  border-color: rgba(199, 210, 254, 0.55);
}
.moon-hero .md-button:not(.md-button--primary):hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: #fff;
  color: #fff;
}
.moon-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.6rem 2.4rem;
  margin-top: 2.2rem;
}
.moon-stats div {
  color: #c7d2fe;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.moon-stats strong {
  display: block;
  color: #fff;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

/* Buttons (global) ------------------------------------------------------- */
.md-typeset .md-button {
  border-radius: 10px;
  font-weight: 600;
  transition: transform 0.08s ease, box-shadow 0.15s ease, filter 0.15s ease;
}
.md-typeset .md-button--primary:hover {
  transform: translateY(-1px);
}

/* Cards grid ------------------------------------------------------------- */
.md-typeset .grid.cards > ul > li,
.md-typeset .grid.cards > :is(ul, ol) > li,
.md-typeset .grid > .card {
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: var(--moon-radius);
  padding: 1.1rem 1.15rem;
  transition: transform 0.12s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  background: var(--md-default-bg-color);
}
.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid > .card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--moon-indigo) 45%, transparent);
  box-shadow: 0 12px 30px -12px rgba(79, 70, 229, 0.45);
}
.md-typeset .grid.cards .twemoji.lg svg,
.md-typeset .grid.cards :is(.lg) svg {
  height: 1.9rem;
  width: 1.9rem;
}
.md-typeset .grid.cards > ul > li > hr {
  margin: 0.7rem 0;
  border-color: var(--md-default-fg-color--lightest);
}
.md-typeset .grid.cards .twemoji svg {
  fill: var(--moon-indigo);
}

/* Tables ----------------------------------------------------------------- */
.md-typeset table:not([class]) {
  border-radius: var(--moon-radius);
  overflow: hidden;
  box-shadow: 0 1px 0 var(--md-default-fg-color--lightest);
}
.md-typeset table:not([class]) th {
  background: color-mix(in srgb, var(--moon-indigo) 10%, var(--md-default-bg-color));
  font-weight: 700;
}

/* Code ------------------------------------------------------------------- */
.md-typeset pre > code {
  border-radius: var(--moon-radius);
}

/* Nav active state ------------------------------------------------------- */
.md-nav__link--active,
.md-nav__item .md-nav__link--active {
  font-weight: 700;
}

/* Footer columns --------------------------------------------------------- */
.md-footer-cols {
  background: var(--moon-night-2);
  color: #c7d2fe;
}
.md-footer-cols__inner {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 2rem;
  padding: 2.6rem 0.8rem 2.2rem;
}
.md-footer-col__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
}
.md-footer-col__brand img {
  height: 1.4rem;
  filter: brightness(0) invert(1);
}
.md-footer-col--brand p {
  margin-top: 0.7rem;
  font-size: 0.74rem;
  line-height: 1.5;
  max-width: 18rem;
}
.md-footer-col h2 {
  color: #fff;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 0.8rem;
}
.md-footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.md-footer-col li {
  margin: 0.4rem 0;
}
.md-footer-col a {
  color: #c7d2fe;
  font-size: 0.78rem;
  transition: color 0.12s ease;
}
.md-footer-col a:hover {
  color: #fff;
}
.md-footer-meta {
  background: var(--moon-night-1);
}

@media screen and (max-width: 60em) {
  .md-footer-cols__inner {
    grid-template-columns: 1fr 1fr;
    gap: 1.6rem;
  }
  .md-typeset .moon-hero h1 {
    font-size: 2.1rem;
  }
}
@media screen and (max-width: 30em) {
  .md-footer-cols__inner {
    grid-template-columns: 1fr;
  }
}

/* Feedback widget -------------------------------------------------------- */
.md-feedback {
  margin-top: 2.4rem;
}
.md-feedback__inner {
  border: 1px dashed var(--md-default-fg-color--lighter);
  border-radius: var(--moon-radius);
  padding: 0.8rem 1rem;
}