/* pyscn docs theme — brand tokens, typography, and the homepage hero/CFG diagram. */

@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&display=swap");

:root {
  --pyscn-blue: #2563eb;
  --pyscn-blue-dark: #1d4ed8;
  --pyscn-blue-light: #60a5fa;
  --pyscn-header: #1e3a8a;
  --pyscn-violet: #7c3aed;
  --pyscn-amber: #f59e0b;
  --pyscn-ink: #0b1120;
  --pyscn-ink-line: rgba(148, 163, 184, 0.16);
  --pyscn-ink-text: #cbd5e1;

  /* Wire the custom Material palette to the pyscn brand colors. */
  --md-primary-fg-color: var(--pyscn-blue);
  --md-primary-fg-color--light: var(--pyscn-blue-light);
  --md-primary-fg-color--dark: var(--pyscn-blue-dark);
  --md-primary-bg-color: #ffffff;
  --md-primary-bg-color--light: rgba(255, 255, 255, 0.7);

  --md-accent-fg-color: var(--pyscn-violet);
  --md-accent-fg-color--transparent: rgba(124, 58, 237, 0.1);
  --md-accent-bg-color: #ffffff;
  --md-accent-bg-color--light: rgba(255, 255, 255, 0.7);
}

/* ---------- Header & tabs ---------- */
/* A shade darker than the logo's own blue (#2563eb) so the mark doesn't
   blend into the bar it sits on. */

.md-header,
.md-tabs {
  background-color: var(--pyscn-header);
}

.md-tabs__item {
  position: relative;
}

.md-tabs__item::after {
  content: "";
  position: absolute;
  left: 0.6rem;
  right: 0.6rem;
  bottom: 0;
  height: 2px;
  border-radius: 2px 2px 0 0;
  background: var(--pyscn-amber);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

.md-tabs__item--active::after,
.md-tabs__item:hover::after {
  transform: scaleX(1);
}

.md-tabs__link {
  font-size: 0.78rem;
  font-weight: 500;
}

/* ---------- Typography ---------- */
/* Space Grotesk is reserved for large content headings — at small UI sizes
   (tabs, nav titles) it reads worse than the body font, so chrome stays on Inter. */

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4,
.md-header__title,
.pyscn-hero__eyebrow {
  font-family: "Space Grotesk", "Inter", var(--md-text-font-family), sans-serif;
  letter-spacing: -0.01em;
}

.md-typeset h1 {
  font-weight: 700;
}

.md-typeset h2 {
  font-weight: 600;
}

.md-typeset {
  line-height: 1.65;
}

.md-typeset code {
  border-radius: 0.25rem;
}

.md-typeset pre > code {
  border-radius: 0.5rem;
}

.md-typeset .admonition,
.md-typeset details {
  border-radius: 0.5rem;
}

/* ---------- Buttons ---------- */

.md-typeset .md-button {
  border-radius: 0.4rem;
  font-weight: 600;
  padding: 0.5em 1.2em;
}

.md-typeset .md-button--primary {
  background-color: var(--pyscn-blue);
  border-color: var(--pyscn-blue);
}

.md-typeset .md-button--primary:hover {
  background-color: var(--pyscn-blue-dark);
  border-color: var(--pyscn-blue-dark);
}

/* ---------- Grid cards (feature grid on the homepage) ---------- */

.md-typeset .grid.cards > ul > li,
.md-typeset .grid.cards > ol > li {
  border-radius: 0.6rem;
  transition: border-color 0.15s, transform 0.15s;
}

.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid.cards > ol > li:hover {
  border-color: var(--pyscn-blue);
  transform: translateY(-2px);
}

.md-typeset .grid.cards > ul > li > p:first-child .twemoji {
  color: var(--pyscn-blue);
}

/* ---------- Hero (homepage) ---------- */

.pyscn-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: center;
  margin: 1.5rem 0 3rem;
}

@media screen and (max-width: 76.1875em) {
  .pyscn-hero {
    grid-template-columns: 1fr;
  }
}

.pyscn-hero__copy .md-typeset h1 {
  margin: 0.4rem 0 1rem;
  font-size: 2.4rem;
}

.pyscn-hero__eyebrow {
  display: inline-block;
  margin: 0;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pyscn-blue);
}

[data-md-color-scheme="slate"] .pyscn-hero__eyebrow {
  color: var(--pyscn-blue-light);
}

.pyscn-hero__lede {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--md-default-fg-color--light);
  max-width: 42rem;
}

.pyscn-hero__copy .highlight {
  margin: 1.25rem 0;
}

.pyscn-hero__copy .md-button {
  margin: 1rem 0.75rem 0.5rem 0;
}

.pyscn-hero__meta {
  font-size: 0.75rem;
  color: var(--md-default-fg-color--light);
  font-family: var(--md-code-font-family);
}

/* ---------- CFG diagram panel ---------- */

.pyscn-hero__art {
  background: var(--pyscn-ink);
  border-radius: 0.75rem;
  padding: 1.5rem 1.5rem 1.25rem;
  background-image:
    linear-gradient(var(--pyscn-ink-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--pyscn-ink-line) 1px, transparent 1px);
  background-size: 22px 22px;
}

.pyscn-cfg {
  display: block;
  width: 100%;
  height: auto;
}

.pyscn-cfg text {
  font-family: var(--md-code-font-family);
  font-size: 9px;
  fill: var(--pyscn-ink-text);
}

.pyscn-cfg-arrowhead {
  fill: var(--pyscn-blue-light);
}

.pyscn-cfg-chip {
  fill: var(--pyscn-ink);
}

.pyscn-cfg .pyscn-cfg-caption {
  fill: #64748b;
  font-size: 8px;
}

.pyscn-cfg-node--entry {
  fill: var(--pyscn-ink);
  stroke: var(--pyscn-ink-text);
  stroke-width: 1.5;
}

.pyscn-cfg-decision {
  fill: var(--pyscn-ink);
  stroke: var(--pyscn-blue-light);
  stroke-width: 1.5;
}

.pyscn-cfg-node--exit {
  fill: var(--pyscn-blue-light);
  stroke: var(--pyscn-blue-light);
}

.pyscn-cfg-node--dead {
  fill: none;
  stroke: var(--pyscn-amber);
  stroke-width: 1.5;
  stroke-dasharray: 2.5 2.5;
}

.pyscn-cfg-node--dead-mark {
  stroke: var(--pyscn-amber);
  stroke-width: 1.5;
}

.pyscn-cfg-label--dead {
  fill: var(--pyscn-amber);
  text-decoration: line-through;
  text-decoration-color: rgba(245, 158, 11, 0.6);
}

.pyscn-cfg-edge {
  fill: none;
  stroke: var(--pyscn-blue-light);
  stroke-width: 1.5;
  marker-end: url(#pyscn-arrow);
}

.pyscn-cfg-edge--live {
  stroke-dasharray: 4 3;
  animation: pyscn-flow 1.4s linear infinite;
}

.pyscn-cfg-edge--guide {
  stroke: #475569;
  stroke-width: 1;
  stroke-dasharray: 2 3;
  fill: none;
  marker-end: none;
}

.pyscn-cfg-branch-label {
  fill: #64748b;
  font-size: 8px;
}

@keyframes pyscn-flow {
  to {
    stroke-dashoffset: -14;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pyscn-cfg-edge--live {
    animation: none;
  }
}