/* Tuneline brand for MkDocs Material: the same indigo → violet palette as the studio (web/src/index.css). */
:root,
[data-md-color-scheme='default'] {
  --md-primary-fg-color: #312e81;
  --md-primary-fg-color--light: #4f46e5;
  --md-primary-fg-color--dark: #1e1b4b;
  --md-primary-bg-color: #ffffff;
  --md-accent-fg-color: #7c3aed;
  --md-typeset-a-color: #4338ca;
  --tl-grad: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
}
[data-md-color-scheme='slate'] {
  --md-primary-fg-color: #1e1b4b;
  --md-primary-fg-color--light: #6366f1;
  --md-primary-fg-color--dark: #0b0d16;
  --md-accent-fg-color: #a78bfa;
  --md-typeset-a-color: #b4b2ff;
  --md-default-bg-color: #0a0c13;
  --tl-grad: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

/* Header and tabs: the deep indigo gradient of the studio's sidebar. */
.md-header,
.md-tabs {
  background: linear-gradient(90deg, #0f1220 0%, #1e1b4b 55%, #2e1065 100%);
}

.md-typeset h1 {
  color: var(--md-default-fg-color);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.md-typeset img {
  border: 1px solid var(--md-default-fg-color--lightest);
  border-radius: 10px;
  box-shadow: 0 6px 18px rgba(15, 20, 36, 0.08);
}

/* Home page hero. */
.tl-hero {
  margin: 0 0 2rem;
  padding: 2.4rem 2rem;
  border-radius: 18px;
  color: #fff;
  background:
    radial-gradient(60% 55% at 12% 8%, rgba(14, 165, 233, 0.35) 0%, transparent 60%),
    radial-gradient(55% 60% at 95% 90%, rgba(217, 70, 239, 0.3) 0%, transparent 60%),
    linear-gradient(145deg, #1e1b4b 0%, #312e81 45%, #4c1d95 100%);
}
.md-typeset .tl-hero h1 {
  color: #fff;
  margin: 0 0 0.6rem;
  font-size: 2.1rem;
}
.tl-hero p {
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.95rem;
  max-width: 46rem;
}
.md-typeset .tl-hero .md-button {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
  margin: 0.4rem 0.4rem 0 0;
}
.md-typeset .tl-hero .md-button--primary {
  background: var(--tl-grad);
  border-color: transparent;
}
.md-typeset .grid.cards > ul > li,
.md-typeset .grid > .card {
  border-radius: 14px;
}
.md-typeset .grid.cards > ul > li:hover {
  border-color: #7c3aed;
}