/* ==========================================================================
   YouTube Audio - brand theme for Material for MkDocs
   Brand accent: "Live aqua" #22D3B4. Dark-first aesthetic.
   ========================================================================== */

/* Custom primary color (header, tabs, active nav). Material applies these
   because the palette uses `primary: custom`. */
[data-md-color-primary='custom'] {
  --md-primary-fg-color: #22d3b4;
  --md-primary-fg-color--light: #5be0cb;
  --md-primary-fg-color--dark: #12b89b;
  /* Foreground text that sits on top of the aqua header: dark ink for contrast. */
  --md-primary-bg-color: #04120f;
  --md-primary-bg-color--light: rgba(4, 18, 15, 0.72);
}

/* Custom accent color (links on hover, focus rings, interactive highlights). */
[data-md-color-accent='custom'] {
  --md-accent-fg-color: #16b598;
  --md-accent-fg-color--transparent: rgba(34, 211, 180, 0.1);
  --md-accent-bg-color: #04120f;
  --md-accent-bg-color--light: rgba(4, 18, 15, 0.72);
}

/* ---- Dark scheme (default) --------------------------------------------- */
[data-md-color-scheme='slate'] {
  --md-hue: 205;
  --md-default-bg-color: hsl(210, 24%, 8%);
  --md-default-bg-color--light: hsl(210, 22%, 11%);
  --md-accent-fg-color: #2ee0bf;
  --md-typeset-a-color: #35e2c2;
  --md-code-bg-color: hsl(210, 24%, 12%);
  --md-footer-bg-color: hsl(210, 26%, 6%);
  --md-footer-bg-color--dark: hsl(210, 28%, 5%);
}

/* Keep body text comfortably bright against the deep background. */
[data-md-color-scheme='slate'] {
  --md-typeset-color: hsla(210, 15%, 92%, 0.9);
}

/* ---- Light scheme ------------------------------------------------------ */
[data-md-color-scheme='default'] {
  /* Darker aqua so links keep AA contrast on white. */
  --md-typeset-a-color: #0f9e86;
}

/* ==========================================================================
   Landing page hero
   ========================================================================== */
.yta-hero {
  position: relative;
  margin: 0 0 2.5rem;
  padding: 3rem 2rem 3.25rem;
  border-radius: 1rem;
  overflow: hidden;
  text-align: center;
  background:
    radial-gradient(1200px 400px at 12% -10%, rgba(34, 211, 180, 0.28), transparent 60%),
    radial-gradient(900px 380px at 100% 0%, rgba(34, 211, 180, 0.12), transparent 55%),
    linear-gradient(160deg, hsl(210, 30%, 12%), hsl(210, 32%, 8%));
  border: 1px solid rgba(34, 211, 180, 0.25);
  box-shadow: 0 24px 60px -30px rgba(34, 211, 180, 0.55);
}

[data-md-color-scheme='default'] .yta-hero {
  background:
    radial-gradient(1200px 400px at 12% -10%, rgba(34, 211, 180, 0.22), transparent 60%),
    radial-gradient(900px 380px at 100% 0%, rgba(34, 211, 180, 0.1), transparent 55%),
    linear-gradient(160deg, hsl(168, 60%, 96%), hsl(210, 40%, 98%));
  border: 1px solid rgba(34, 211, 180, 0.35);
  box-shadow: 0 24px 60px -34px rgba(34, 211, 180, 0.45);
}

.yta-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.32rem 0.85rem;
  border-radius: 2rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #22d3b4;
  background: rgba(34, 211, 180, 0.12);
  border: 1px solid rgba(34, 211, 180, 0.4);
}

.yta-hero h1,
.yta-hero .yta-hero__title {
  margin: 1rem 0 0.5rem;
  font-size: 2.6rem;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.yta-hero__title .aqua {
  background: linear-gradient(92deg, #22d3b4, #4fe6cf);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.yta-hero__subtitle {
  max-width: 44rem;
  margin: 0 auto;
  font-size: 1.05rem;
  opacity: 0.85;
}

.yta-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1.75rem;
}

.yta-cta .md-button {
  margin: 0;
}

.yta-cta .md-button--primary {
  box-shadow: 0 14px 30px -14px rgba(34, 211, 180, 0.8);
}

/* ==========================================================================
   Feature grid cards (Material .grid.cards) - brand hover accent
   ========================================================================== */
.md-typeset .grid.cards > ul > li,
.md-typeset .grid > .card {
  border-radius: 0.7rem;
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.md-typeset .grid.cards > ul > li:hover {
  border-color: rgba(34, 211, 180, 0.55);
  box-shadow: 0 18px 40px -26px rgba(34, 211, 180, 0.7);
  transform: translateY(-2px);
}

.md-typeset .grid.cards .twemoji svg,
.md-typeset .grid.cards .lg svg {
  fill: #22d3b4;
}

/* Mermaid diagrams: give them room to breathe and center them. */
.md-typeset .mermaid {
  text-align: center;
}