/* ===========================================================================
   Odusite docs — Material theme customisation
   Dark-first, blue brand accent, seamless header, landing hero + cards.
   Same visual language as the Oduflow docs.
   =========================================================================== */

:root {
  --odu-brand:        #2e79f5;  /* brand primary            */
  --odu-brand-bright: #4f8dff;  /* accent / hover           */
  --odu-brand-link:   #74a8ff;  /* dark-mode links          */
  --odu-brand-glow:   rgba(46, 121, 245, .30);
}

/* --- Custom primary / accent (applies to both colour schemes) ------------- */
[data-md-color-primary="custom"] {
  --md-primary-fg-color:         #2e79f5;
  --md-primary-fg-color--light:  #4f8dff;
  --md-primary-fg-color--dark:   #1f5fd0;
  --md-primary-bg-color:         #ffffff;
  --md-primary-bg-color--light:  rgba(255, 255, 255, .7);
}
[data-md-color-accent="custom"] {
  --md-accent-fg-color:             #4f8dff;
  --md-accent-fg-color--transparent: rgba(46, 121, 245, .1);
  --md-accent-bg-color:             #ffffff;
  --md-accent-bg-color--light:      rgba(255, 255, 255, .7);
}

/* --- Dark scheme: blue-tinted near-black --------------------------------- */
[data-md-color-scheme="slate"] {
  --md-default-bg-color:          #060a12;
  --md-default-bg-color--light:   rgba(6, 10, 18, .7);
  --md-default-bg-color--lighter: rgba(6, 10, 18, .3);
  --md-default-bg-color--lightest:rgba(6, 10, 18, .12);

  --md-default-fg-color:          rgba(230, 232, 235, .92);
  --md-default-fg-color--light:   rgba(230, 232, 235, .70);
  --md-default-fg-color--lighter: rgba(230, 232, 235, .42);
  --md-default-fg-color--lightest:rgba(230, 232, 235, .10);

  --md-code-bg-color:  #0c1322;
  --md-code-fg-color:  #d6dee8;

  --md-typeset-a-color: var(--odu-brand-link);

  --md-footer-bg-color:      #04070d;
  --md-footer-bg-color--dark:#03050a;

  --odu-surface:        #0b1220;
  --odu-surface-2:      #111a2b;
  --odu-border:         rgba(140, 170, 225, .12);
  --odu-border-strong:  rgba(140, 170, 225, .20);
}

/* --- Light scheme: cool white + soft blue borders ------------------------ */
[data-md-color-scheme="default"] {
  --md-default-bg-color: #ffffff;
  --md-typeset-a-color:  #1b5fd0;

  --odu-surface:        #f4f8ff;
  --odu-surface-2:      #e9f1ff;
  --odu-border:         rgba(20, 60, 140, .10);
  --odu-border-strong:  rgba(20, 60, 140, .16);
}

/* ===========================================================================
   Seamless header — page-coloured bar instead of a solid blue band
   =========================================================================== */
.md-header {
  background-color: var(--md-default-bg-color);
  color: var(--md-default-fg-color);
  border-bottom: 1px solid var(--odu-border);
  box-shadow: none;
  transition: background-color .25s, border-color .25s;
}
.md-header[data-md-state="shadow"],
.md-header--shadow {
  box-shadow: 0 0 .4rem rgba(0, 0, 0, .08), 0 .2rem .4rem rgba(0, 0, 0, .12);
}
.md-tabs { background-color: var(--md-default-bg-color); }

/* Brand icon logo tint */
.md-header__button.md-logo img,
.md-header__button.md-logo svg,
.md-nav__title .md-logo img,
.md-nav__title .md-logo svg { height: 1.4rem; width: auto; }

/* Search field on the seamless header */
.md-search__form {
  background-color: var(--odu-surface);
  border: 1px solid var(--odu-border);
  border-radius: .6rem;
  box-shadow: none;
}
.md-search__form:hover { background-color: var(--odu-surface-2); }
[data-md-toggle="search"]:checked ~ .md-header .md-search__form {
  border-color: var(--odu-brand);
}

/* ===========================================================================
   Typography & global polish
   =========================================================================== */
.md-typeset { font-feature-settings: "kern", "liga", "calt"; }

.md-typeset h1,
.md-typeset h2,
.md-typeset h3 { letter-spacing: -.01em; font-weight: 700; }
.md-typeset h2 {
  margin-top: 2.4em;
  padding-bottom: .3em;
  border-bottom: 1px solid var(--odu-border);
}

.md-typeset a { transition: color .15s, opacity .15s; }
.md-typeset a:hover { color: var(--odu-brand-bright); }

/* Inline code + fenced blocks */
.md-typeset code { border-radius: .35rem; }
.md-typeset pre > code {
  border: 1px solid var(--odu-border);
  border-radius: .7rem;
}
.md-typeset .highlight { border-radius: .7rem; }

/* Tables */
.md-typeset table:not([class]) {
  border: 1px solid var(--odu-border);
  border-radius: .7rem;
  overflow: hidden;
  box-shadow: none;
}
.md-typeset table:not([class]) th {
  background-color: var(--odu-surface-2);
  font-weight: 600;
}
.md-typeset table:not([class]) tr:hover { background-color: var(--odu-surface); }

/* Slim, themed scrollbar (WebKit) */
* { scrollbar-width: thin; scrollbar-color: var(--odu-border-strong) transparent; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb {
  background: var(--odu-border-strong);
  border-radius: 8px;
  border: 2px solid transparent;
  background-clip: content-box;
}
*::-webkit-scrollbar-thumb:hover { background: var(--md-default-fg-color--lighter); background-clip: content-box; }

/* Sidebar section labels (navigation.sections) */
.md-nav__item--section > .md-nav__link {
  font-size: .66rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--md-default-fg-color--light);
}

/* Active nav link accent */
.md-nav__link--active,
.md-nav__link--active:focus { color: var(--odu-brand); font-weight: 600; }

/* Headerlinks */
.headerlink { opacity: 0; transition: opacity .2s; text-decoration: none; color: inherit; }
h1:hover .headerlink, h2:hover .headerlink, h3:hover .headerlink,
h4:hover .headerlink, h5:hover .headerlink, h6:hover .headerlink { opacity: 1; }

/* ===========================================================================
   Landing hero
   =========================================================================== */
.odu-hero {
  position: relative;
  margin: -1rem -.8rem 3rem;
  padding: 4.5rem 1.5rem 3.5rem;
  text-align: center;
  border-radius: 1.2rem;
  overflow: hidden;
  isolation: isolate;
}
/* Layered blue glow + grid texture */
.odu-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(120% 120% at 50% -10%, var(--odu-brand-glow) 0%, transparent 55%),
    radial-gradient(80% 80% at 85% 20%, rgba(46, 121, 245, .18) 0%, transparent 60%);
}
.odu-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--odu-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--odu-border) 1px, transparent 1px);
  background-size: 38px 38px;
  -webkit-mask-image: radial-gradient(100% 80% at 50% 0%, #000 30%, transparent 75%);
          mask-image: radial-gradient(100% 80% at 50% 0%, #000 30%, transparent 75%);
  opacity: .6;
}

.odu-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  margin: 0 0 1.1rem;
  padding: .32rem .8rem;
  font-family: var(--md-code-font-family, "JetBrains Mono", monospace);
  font-size: .66rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--odu-brand);
  background: var(--md-accent-fg-color--transparent);
  border: 1px solid var(--odu-brand-glow);
  border-radius: 2rem;
}

.md-typeset .odu-hero__title {
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -.035em;
  background: linear-gradient(180deg, var(--md-default-fg-color) 25%, var(--odu-brand) 130%);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

.odu-hero__subtitle {
  max-width: 40rem;
  margin: 1.2rem auto 0;
  font-size: 1.06rem;
  line-height: 1.6;
  color: var(--md-default-fg-color--light);
}
.odu-hero__subtitle strong { color: var(--md-default-fg-color); font-weight: 600; }

.odu-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  justify-content: center;
  margin-top: 2rem;
}
.md-typeset .odu-btn {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  padding: .62rem 1.3rem;
  font-size: .82rem;
  font-weight: 600;
  border-radius: .65rem;
  border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .2s ease, background-color .2s, border-color .2s;
}
.md-typeset .odu-btn:hover { transform: translateY(-2px); }
.md-typeset .odu-btn--primary {
  color: #ffffff;
  background: var(--odu-brand);
  box-shadow: 0 .4rem 1.2rem var(--odu-brand-glow);
}
.md-typeset .odu-btn--primary:hover {
  color: #ffffff;
  background: var(--odu-brand-bright);
  box-shadow: 0 .7rem 1.6rem var(--odu-brand-glow);
}
.md-typeset .odu-btn--ghost {
  color: var(--md-default-fg-color);
  background: var(--odu-surface);
  border-color: var(--odu-border-strong);
}
.md-typeset .odu-btn--ghost:hover {
  color: var(--md-default-fg-color);
  border-color: var(--odu-brand-bright);
  background: var(--odu-surface-2);
}

/* ===========================================================================
   Feature card grid (Material `grid cards`)
   =========================================================================== */
.md-typeset .grid.cards > ul > li,
.md-typeset .grid > .card {
  border: 1px solid var(--odu-border);
  border-radius: .9rem;
  padding: 1.1rem 1.2rem;
  background: var(--odu-surface);
  transition: transform .18s ease, border-color .18s ease, box-shadow .25s ease, background-color .2s;
}
.md-typeset .grid.cards > ul > li:hover {
  transform: translateY(-4px);
  border-color: var(--odu-brand-bright);
  background: var(--odu-surface-2);
  box-shadow: 0 .6rem 1.6rem rgba(0, 0, 0, .18);
}
.md-typeset .grid.cards > ul > li > hr {
  margin: .8rem 0;
  border-color: var(--odu-border);
}
.md-typeset .grid.cards .twemoji.lg,
.md-typeset .grid.cards .twemoji svg {
  height: 1.6rem;
  width: 1.6rem;
}
.md-typeset .grid.cards > ul > li .twemoji {
  color: var(--odu-brand);
}

/* ===========================================================================
   Screenshot frame
   =========================================================================== */
.odu-shot {
  margin: 2.5rem 0;
  border-radius: 1rem;
  border: 1px solid var(--odu-border-strong);
  overflow: hidden;
  box-shadow: 0 1.2rem 3rem rgba(0, 0, 0, .25);
}
.odu-shot img { display: block; width: 100%; }

/* ===========================================================================
   Footer + misc
   =========================================================================== */
.md-footer-meta { backdrop-filter: none; }

@media screen and (max-width: 44.9em) {
  .odu-hero { padding: 3rem 1rem 2.5rem; margin: -1rem -.6rem 2rem; }
}