/* ============================================================================
 * Tape — design system layered on top of MkDocs Material.
 *
 * Three goals:
 *   1. Make the page feel calm and dense — like a good README, not a brochure.
 *   2. Make navigation obvious — sections, breadcrumbs, "you are here" cues.
 *   3. Make code, tables, and admonitions a pleasure to read.
 *
 * Keep it short, keep it boring. No animations beyond hover/focus cues.
 * ========================================================================== */

:root {
  --md-text-font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Helvetica Neue", sans-serif;
  --md-code-font-family: "JetBrains Mono", ui-monospace, SFMono-Regular,
    "Cascadia Mono", "Liberation Mono", Menlo, Consolas, monospace;

  /* Tape accents — match the dark/indigo Material palette without fighting it. */
  --tape-accent: #4f46e5;       /* indigo-600 */
  --tape-accent-soft: rgba(79, 70, 229, 0.10);
  --tape-good: #16a34a;         /* green-600 */
  --tape-warn: #d97706;         /* amber-600 */
  --tape-bad:  #dc2626;         /* red-600 */
  --tape-rule: rgba(0, 0, 0, 0.06);

  --tape-radius: 6px;
  --tape-radius-lg: 10px;
}

[data-md-color-scheme="slate"] {
  --tape-accent: #818cf8;       /* indigo-400 in dark */
  --tape-accent-soft: rgba(129, 140, 248, 0.14);
  --tape-good: #4ade80;
  --tape-warn: #fbbf24;
  --tape-bad:  #f87171;
  --tape-rule: rgba(255, 255, 255, 0.08);
}

/* ── Typography ────────────────────────────────────────────────────────── */

.md-typeset {
  font-feature-settings: "ss01", "cv11", "kern";
  line-height: 1.65;
}

.md-typeset h1 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 0.6em;
}
.md-typeset h2 {
  font-weight: 700;
  letter-spacing: -0.012em;
  border-top: 1px solid var(--tape-rule);
  padding-top: 1.4em;
  margin-top: 1.8em;
}
.md-typeset h3 {
  font-weight: 600;
  letter-spacing: -0.005em;
  margin-top: 1.6em;
}
.md-typeset h4 { font-weight: 600; }

.md-typeset h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 1.2em;
}

/* The first H2 right after the H1 doesn't need the rule. */
.md-typeset > h1 + h2 {
  border-top: none;
  padding-top: 0.4em;
}

/* Permalink anchors — subtler. */
.md-typeset .headerlink {
  color: var(--md-default-fg-color--lightest);
  font-weight: 400;
}
.md-typeset h2:hover .headerlink,
.md-typeset h3:hover .headerlink,
.md-typeset h4:hover .headerlink { color: var(--tape-accent); }

/* ── Hero (landing page) ───────────────────────────────────────────────── */

.tape-hero-title {
  font-size: 2.6rem !important;
  line-height: 1.1 !important;
  background: linear-gradient(135deg,
    var(--md-default-fg-color) 0%,
    var(--md-default-fg-color--light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-top: 1.2rem !important;
  margin-bottom: 0.6rem !important;
}

.tape-hero-sub {
  font-size: 1.1rem;
  color: var(--md-default-fg-color--light);
  max-width: 60ch;
  margin-bottom: 1.6rem !important;
}

.tape-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.2rem 0 2rem;
}
.tape-hero-actions .md-button { margin: 0; }

.tape-section-h {
  font-size: 1.45rem !important;
  margin-top: 2.6em !important;
}

/* Status-icon flecks in tables. */
.tape-good { color: var(--tape-good); }
.tape-warn { color: var(--tape-warn); }
.tape-bad  { color: var(--tape-bad);  }

/* ── Cards ─────────────────────────────────────────────────────────────── */

.md-typeset .grid.cards.tape-card-grid > ul,
.md-typeset .grid.cards.tape-card-grid {
  gap: 1rem;
}

.md-typeset .grid.cards > ul > li,
.md-typeset .grid.cards.tape-card-grid > ul > li {
  border: 1px solid var(--tape-rule);
  border-radius: var(--tape-radius-lg);
  padding: 1.1rem 1.2rem;
  background: var(--md-default-bg-color);
  transition: border-color 120ms ease, transform 120ms ease, box-shadow 120ms ease;
}
.md-typeset .grid.cards > ul > li:hover,
.md-typeset .grid.cards.tape-card-grid > ul > li:hover {
  border-color: var(--tape-accent);
  transform: translateY(-1px);
  box-shadow: 0 4px 18px -8px var(--tape-accent-soft);
}

.md-typeset .grid.cards > ul > li > hr {
  margin: 0.5em 0 0.7em;
  border: 0;
  border-top: 1px solid var(--tape-rule);
}

.md-typeset .grid.cards > ul > li > p:first-child > strong {
  font-size: 1.02rem;
  letter-spacing: -0.005em;
}

.md-typeset .grid.cards .twemoji.lg svg,
.md-typeset .grid.cards .twemoji.middle svg {
  width: 1.4rem;
  height: 1.4rem;
  vertical-align: middle;
}

/* ── Buttons ───────────────────────────────────────────────────────────── */

.md-typeset .md-button {
  border-radius: var(--tape-radius);
  border-width: 1px;
  transition: transform 120ms ease, box-shadow 120ms ease,
              background-color 120ms ease, color 120ms ease;
}
.md-typeset .md-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px -6px var(--tape-accent-soft);
}

/* ── Code blocks ───────────────────────────────────────────────────────── */

.md-typeset pre > code {
  border-radius: var(--tape-radius);
  line-height: 1.55;
}

.md-typeset code {
  font-feature-settings: "calt", "kern";
  border-radius: 3px;
  padding: 0.08em 0.32em;
  font-size: 0.86em;
}

/* Inline-code inside headings: don't dwarf the heading. */
.md-typeset h1 code,
.md-typeset h2 code,
.md-typeset h3 code { font-size: 0.92em; }

/* Snippets pulled into a "what's a placeholder" admonition flavour for SDK refs. */
.md-typeset .admonition.scaffold,
.md-typeset details.scaffold {
  border-color: var(--tape-accent);
  background-color: var(--tape-accent-soft);
}
.md-typeset .admonition.scaffold > .admonition-title,
.md-typeset details.scaffold > summary {
  background-color: var(--tape-accent-soft);
  border-color: var(--tape-accent);
}

/* ── Admonitions: a touch more separation. */
.md-typeset .admonition,
.md-typeset details {
  border-radius: var(--tape-radius);
  border-left-width: 3px;
}

/* ── Tables ────────────────────────────────────────────────────────────── */

.md-typeset table:not([class]) {
  font-size: 0.86rem;
  border-radius: var(--tape-radius);
  overflow: hidden;
  box-shadow: 0 0 0 1px var(--tape-rule);
}

.md-typeset table:not([class]) th {
  background: var(--md-default-fg-color--lightest);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-transform: none;
}

.md-typeset table:not([class]) td,
.md-typeset table:not([class]) th { padding: 0.55rem 0.8rem; }

.md-typeset table:not([class]) tr:hover td {
  background: var(--tape-accent-soft);
}

/* Parity-style ticks. */
.md-typeset td:has(> code:only-child) { font-variant-numeric: tabular-nums; }

/* ── Reference page polish ─────────────────────────────────────────────── */

.doc-signature {
  background: var(--md-code-bg-color);
  padding: 0.5rem 0.75rem;
  border-radius: var(--tape-radius);
  border-left: 3px solid var(--tape-accent);
  margin-bottom: 1rem;
  overflow-x: auto;
}

.doc-symbol-type {
  font-size: 0.7em;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--md-default-fg-color--light);
}

/* ── Mermaid: respect the dark theme. */
[data-md-color-scheme="slate"] .mermaid {
  filter: invert(0.92) hue-rotate(180deg);
}

/* ── Section dividers ──────────────────────────────────────────────────── */

.md-typeset hr {
  border-bottom: 1px solid var(--tape-rule);
  margin: 2em 0;
}

/* ── Sidebar navigation ────────────────────────────────────────────────── */

.md-nav__title { font-weight: 700; letter-spacing: 0.02em; }

.md-nav__link {
  transition: color 100ms ease, background-color 100ms ease;
  border-radius: 4px;
  padding: 0.18rem 0.4rem !important;
}

.md-nav__link:hover {
  background: var(--tape-accent-soft);
  color: var(--tape-accent);
}

.md-nav__link--active {
  font-weight: 600;
  color: var(--tape-accent) !important;
}

/* ── Top tabs ──────────────────────────────────────────────────────────── */

.md-tabs__link {
  opacity: 0.85;
  letter-spacing: 0.005em;
  transition: opacity 120ms ease, color 120ms ease;
}
.md-tabs__link:hover,
.md-tabs__link--active {
  opacity: 1;
}

/* ── Footer ────────────────────────────────────────────────────────────── */

.md-footer-meta { font-size: 0.78rem; }

/* ── Search ────────────────────────────────────────────────────────────── */

.md-search__input {
  font-feature-settings: "kern";
}

/* ── Right-rail TOC ────────────────────────────────────────────────────── */

.md-nav--secondary .md-nav__title { font-size: 0.74rem; opacity: 0.7; }
.md-nav--secondary .md-nav__link { font-size: 0.78rem; }

/* ── Glossary <dl> styling ─────────────────────────────────────────────── */

.md-typeset dl {
  display: grid;
  grid-template-columns: minmax(10rem, 14rem) 1fr;
  gap: 0.4rem 1.2rem;
  align-items: baseline;
  margin: 1rem 0;
}
.md-typeset dl dt {
  font-weight: 600;
  color: var(--tape-accent);
  font-family: var(--md-code-font-family);
  font-size: 0.92em;
}
.md-typeset dl dd { margin: 0; }

@media (max-width: 720px) {
  .md-typeset dl { grid-template-columns: 1fr; gap: 0.15rem 0; }
  .md-typeset dl dd { margin: 0 0 0.6rem 0; }
}

/* ── Index / hub pages — link cards rendered from plain bullet lists. ─── */

.tape-hub ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr));
  gap: 0.8rem;
}
.tape-hub ul li {
  border: 1px solid var(--tape-rule);
  border-radius: var(--tape-radius-lg);
  padding: 0.9rem 1rem;
  transition: border-color 120ms ease, transform 120ms ease;
}
.tape-hub ul li:hover {
  border-color: var(--tape-accent);
  transform: translateY(-1px);
}
.tape-hub ul li > a:first-child {
  font-weight: 600;
  font-size: 1.02rem;
  display: block;
  margin-bottom: 0.3rem;
}

/* ── Keyboard kbd styling (used in shortcuts / glossary). */

.md-typeset kbd {
  background: var(--md-default-fg-color--lightest);
  border-radius: 3px;
  border: 1px solid var(--tape-rule);
  box-shadow: 0 1px 0 var(--tape-rule);
  padding: 0.05em 0.4em;
  font-size: 0.82em;
}

/* ── Print: keep things readable. */
@media print {
  .md-typeset h2 { break-before: page; }
  .md-sidebar, .md-tabs, .md-footer-nav { display: none !important; }
}