/* Shared design tokens. System fonts; theme assets are served with the site. */
:root {
  --md-text-font: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --md-code-font: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --ot-radius: 0.65rem;
}
[data-md-color-scheme="slate"] {
  --md-default-bg-color: #111815;
  --md-default-fg-color: #e7eee9;
  --md-default-fg-color--light: #b3c0b7;
  --md-default-fg-color--lighter: #789084;
  --md-default-fg-color--lightest: #29392f;
  --md-primary-fg-color: #111815;
  --md-primary-fg-color--dark: #111815;
  --md-primary-bg-color: #e7eee9;
  --md-accent-fg-color: #b7f36b;
  --md-typeset-a-color: #b7f36b;
  --md-code-bg-color: #19221c;
  --md-code-fg-color: #e0e9e2;
  --ot-surface: #17211b;
  --ot-surface-raised: #1d2a21;
  --ot-border: #304036;
  --ot-muted: #a7b8ac;
  --ot-accent: #b7f36b;
  --ot-accent-ink: #14230c;
  --ot-glow: #18281c;
}
[data-md-color-scheme="default"] {
  --md-default-bg-color: #f7f9f6;
  --md-default-fg-color: #17241b;
  --md-default-fg-color--light: #4c6253;
  --md-default-fg-color--lighter: #6d8274;
  --md-default-fg-color--lightest: #dce5de;
  --md-primary-fg-color: #f7f9f6;
  --md-primary-fg-color--dark: #f7f9f6;
  --md-primary-bg-color: #17241b;
  --md-accent-fg-color: #286521;
  --md-typeset-a-color: #286521;
  --md-code-bg-color: #edf2eb;
  --ot-surface: #ffffff;
  --ot-surface-raised: #eef4eb;
  --ot-border: #d5e0d4;
  --ot-muted: #536957;
  --ot-accent: #286521;
  --ot-accent-ink: #ffffff;
  --ot-glow: #eef4e8;
}
html { scroll-behavior: smooth; scroll-padding-top: 4.5rem; }
.md-grid { max-width: 72rem; }
.md-header { border-bottom: 1px solid var(--ot-border); box-shadow: none; }
.md-header__inner { min-height: 3.4rem; padding: 0 0.9rem; gap: 0.3rem; }
.md-header__title { font-size: 0.9rem; font-weight: 650; letter-spacing: -0.025em; margin-left: 0.35rem; }
.md-header__button.md-logo img { width: 1.65rem; height: 1.65rem; }
.md-header__button { color: var(--md-default-fg-color); }
.md-header__source { width: auto; max-width: none; margin-left: 0.5rem; }
.ot-repository { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem; font-size: 0.7rem; font-weight: 600; white-space: nowrap; }
.ot-repository .md-icon svg { width: 1rem; height: 1rem; }
.md-search__form { border: 1px solid var(--ot-border); border-radius: 0.4rem; background: var(--ot-surface); color: var(--md-default-fg-color); }
.md-search__input, .md-search__icon { color: var(--md-default-fg-color); }
.md-search__input::placeholder { color: var(--ot-muted); }
.md-sidebar { padding-top: 1.2rem; }
.md-nav { font-size: 0.7rem; line-height: 1.5; }
.md-nav__item--section > .md-nav__link { text-transform: uppercase; letter-spacing: 0.09em; font-size: 0.58rem; color: var(--ot-muted); margin-top: 1.3rem; }
.md-nav__link { border-radius: 0.3rem; padding: 0.3rem 0.5rem; margin-left: -0.5rem; transition: background 150ms; }
.md-nav__link:hover { background: var(--ot-surface-raised); }
.md-nav__link--active { background: var(--ot-surface-raised); font-weight: 600; }
.md-nav--secondary { border-left: 1px solid var(--ot-border); padding-left: 0.6rem; }
.md-typeset { font-size: 0.8rem; line-height: 1.7; }
.md-typeset h1 { color: var(--md-default-fg-color); font-size: 2rem; font-weight: 650; letter-spacing: -0.045em; line-height: 1.15; margin-bottom: 1rem; }
.md-typeset h2 { font-size: 1.3rem; font-weight: 650; letter-spacing: -0.03em; margin-top: 2.2rem; }
.md-typeset h3 { font-weight: 650; letter-spacing: -0.02em; }
.md-typeset a:hover { color: var(--ot-accent); text-decoration: underline; text-underline-offset: 0.2em; }
.md-typeset pre > code { border: 1px solid var(--ot-border); border-radius: 0.45rem; padding: 1rem; }
.md-typeset code { border-radius: 0.2rem; }
.md-typeset table:not([class]) { border: 1px solid var(--ot-border); border-radius: 0.45rem; font-size: 0.7rem; }
.md-typeset table:not([class]) th { background: var(--ot-surface-raised); }
.md-typeset table:not([class]) td { border-top-color: var(--ot-border); }
.md-typeset blockquote { border-left-color: var(--ot-accent); color: var(--ot-muted); }
.md-footer { background: var(--ot-surface); border-top: 1px solid var(--ot-border); color: var(--md-default-fg-color); }
.md-footer-meta { background: var(--ot-surface); }
.md-copyright, .md-copyright__highlight { color: var(--ot-muted); }
.md-footer__direction { color: var(--ot-muted); }
a:focus-visible, label:focus-visible, button:focus-visible { outline: 2px solid var(--ot-accent); outline-offset: 4px; }
/* The overview has its own reading hierarchy; guides keep the theme's sidebars. */
.md-main__inner:has(.ot-home) { margin-top: 0; }
.md-content__inner:has(.ot-home) { margin: 0 1.2rem; padding-top: 0; }
.md-content__inner:has(.ot-home) > .md-content__button { display: none; }
.ot-home { padding: 2.6rem 0 1rem; }
.ot-hero { display: grid; grid-template-columns: 1.3fr 1fr; align-items: center; gap: 3.5rem; padding: 1.2rem 0 2.8rem; }
.ot-eyebrow { color: var(--ot-muted); font-size: 0.57rem; font-weight: 650; letter-spacing: 0.15em; margin: 0 0 1.2rem; }
.ot-eyebrow > span { color: var(--ot-accent); margin-right: 0.4rem; }
.ot-intro h1 { font-size: clamp(2.2rem, 4vw, 3.6rem); line-height: 1.07; letter-spacing: -0.065em; margin: 0 0 1.4rem; font-weight: 700; }
.ot-intro h1 span { color: var(--ot-accent); }
.ot-intro .headerlink { display: none; }
.ot-intro > p:not([class]) { max-width: 29rem; color: var(--ot-muted); font-size: 0.85rem; line-height: 1.75; }
.ot-lead { font-size: 1.05rem; letter-spacing: -0.025em; margin-bottom: 0.4rem; }
.ot-actions { display: flex; flex-wrap: wrap; gap: 0.65rem; margin-top: 1.6rem; }
.ot-actions p { display: contents; }
.md-typeset .ot-button { display: inline-flex; align-items: center; gap: 0.8rem; border: 1px solid var(--ot-border); border-radius: 0.4rem; padding: 0.65rem 1rem; font-size: 0.7rem; font-weight: 650; text-decoration: none; transition: background 150ms, border-color 150ms; }
.md-typeset .ot-button--primary { background: var(--ot-accent); border-color: var(--ot-accent); color: var(--ot-accent-ink); }
.md-typeset .ot-button--primary:hover { background: var(--md-default-fg-color); border-color: var(--md-default-fg-color); color: var(--md-default-bg-color); text-decoration: none; }
.md-typeset .ot-button--secondary { color: var(--md-default-fg-color); }
.md-typeset .ot-button--secondary:hover { background: var(--ot-surface-raised); text-decoration: none; }
.ot-release { display: flex; align-items: center; flex-wrap: wrap; gap: 0.55rem; margin-top: 1.3rem; color: var(--ot-muted); font-size: 0.6rem; }
.ot-release > span:not(.ot-release-dot) { opacity: 0.6; }
.ot-release-dot { width: 0.3rem; height: 0.3rem; border-radius: 50%; background: var(--ot-accent); }
/* A native, accessible diagram, not a screenshot of code. */
.ot-flow { background: var(--ot-surface); border: 1px solid var(--ot-border); border-radius: var(--ot-radius); padding: 1.2rem; box-shadow: 0 1rem 3rem -1.5rem #0003; }
.ot-flow-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.1rem; font-size: 0.5rem; font-weight: 650; letter-spacing: 0.12em; color: var(--ot-muted); }
.ot-flow-live { border: 1px solid var(--ot-border); border-radius: 0.25rem; padding: 0.15rem 0.35rem; color: var(--ot-accent); }
.ot-audio, .ot-transcript { border: 1px solid var(--ot-border); border-radius: 0.4rem; padding: 0.65rem 0.8rem; }
.ot-flow-label { display: flex; align-items: center; gap: 0.5rem; font-size: 0.65rem; font-weight: 550; }
.ot-step { font: 0.5rem var(--md-code-font); color: var(--ot-muted); }
.ot-file { margin-left: auto; color: var(--ot-muted); font: 0.45rem var(--md-code-font); }
.ot-wave { display: block; width: 100%; height: 2.5rem; margin: 0.4rem 0 0; color: var(--ot-accent); }
.ot-flow-connector { color: var(--ot-muted); text-align: center; line-height: 1.4; font-size: 0.85rem; }
.ot-router { display: flex; align-items: center; gap: 0.6rem; border: 1px solid var(--ot-accent); border-radius: 0.4rem; padding: 0.65rem 0.8rem; background: var(--ot-glow); }
.ot-router strong { font-size: 0.7rem; }
.ot-router small { display: block; color: var(--ot-muted); font-size: 0.55rem; }
.ot-router-icon { margin-left: auto; font-size: 1.1rem; color: var(--ot-accent); }
.ot-provider-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.4rem; text-align: center; }
.ot-provider-options > span { padding: 0.5rem 0.2rem; font-size: 0.55rem; border: 1px solid var(--ot-border); border-radius: 0.3rem; }
.ot-provider-options small { display: block; color: var(--ot-muted); font-size: 0.45rem; margin-top: 0.1rem; }
.ot-provider-options .ot-provider-selected { border-color: var(--ot-accent); background: var(--ot-glow); }
.ot-transcript-line { display: flex; align-items: center; gap: 0.4rem; margin-top: 0.6rem; }
.ot-transcript-line span { font: 0.43rem var(--md-code-font); color: var(--ot-accent); }
.ot-transcript-line i { height: 0.25rem; width: 22%; border-radius: 0.15rem; background: var(--ot-border); }
.ot-transcript-line i:last-child { width: 12%; }
.ot-transcript p { color: var(--ot-muted); font-size: 0.45rem; margin-bottom: 0; }
.ot-principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; border-top: 1px solid var(--ot-border); border-bottom: 1px solid var(--ot-border); padding: 1.3rem 0; }
.ot-principles > div { display: flex; align-items: flex-start; gap: 0.7rem; }
.ot-principle-icon { color: var(--ot-accent); font-size: 1.25rem; line-height: 1.4; }
.ot-principles strong { display: block; font-size: 0.7rem; font-weight: 600; }
.ot-principles small { display: block; font-size: 0.6rem; color: var(--ot-muted); margin-top: 0.25rem; line-height: 1.55; }
.ot-section-intro { padding: 2.4rem 0 0.9rem; }
.ot-section-intro .ot-eyebrow { margin-bottom: 0.5rem; }
.ot-section-intro h2 { margin: 0; font-size: 1.7rem; letter-spacing: -0.04em; }
.ot-section-intro > p:last-child { font-size: 0.75rem; color: var(--ot-muted); margin: 0.5rem 0; }
.ot-paths { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.8rem; }
.md-typeset .ot-path { display: flex; flex-direction: column; padding: 1.3rem; color: var(--md-default-fg-color); border: 1px solid var(--ot-border); border-radius: var(--ot-radius); background: var(--ot-surface); transition: border-color 150ms, background 150ms; }
.md-typeset .ot-path:hover { text-decoration: none; border-color: var(--ot-accent); background: var(--ot-surface-raised); }
.ot-path-number { color: var(--ot-muted); font: 0.5rem var(--md-code-font); letter-spacing: 0.07em; }
.ot-path h3 { font-size: 1rem; margin: 1.2rem 0 0.4rem; }
.ot-path p { font-size: 0.7rem; color: var(--ot-muted); line-height: 1.65; margin: 0 0 1.2rem; }
.ot-path-link { display: flex; justify-content: space-between; gap: 0.5rem; margin-top: auto; font-size: 0.65rem; font-weight: 600; color: var(--ot-accent); }
.ot-guides { border-left: 2px solid var(--ot-border); padding-left: 0.9rem; margin: 1.2rem 0 0; font-size: 0.65rem; color: var(--ot-muted); }
.ot-guides strong { color: var(--md-default-fg-color); }
.ot-bottom { display: grid; grid-template-columns: 2fr 1fr; gap: 3rem; margin: 2.5rem 0 0; padding: 1.8rem 0 1rem; border-top: 1px solid var(--ot-border); }
.ot-bottom .ot-eyebrow { margin-bottom: 0.5rem; }
.ot-bottom h3 { margin: 0; font-size: 1.15rem; }
.ot-bottom p:not([class]) { font-size: 0.7rem; color: var(--ot-muted); max-width: 34rem; }
.ot-more { align-self: center; padding-left: 1.5rem; border-left: 1px solid var(--ot-border); font-size: 0.7rem; }
/* Reflow instead of shrinking text or wrapping the header's guide links. */
@media (max-width: 76.1875em) {
  .md-nav--primary .md-nav__title { background: var(--ot-surface); color: var(--md-default-fg-color); }
  .md-nav--primary .md-nav__title ~ .md-nav__list { background: var(--md-default-bg-color); }
  .ot-hero { gap: 2rem; }
}
@media (max-width: 60em) {
  .ot-hero { grid-template-columns: 1.15fr 1fr; gap: 1.5rem; }
  .ot-intro h1 { font-size: 2.45rem; }
  .ot-principles { gap: 1rem; }
  .ot-principles > div { gap: 0.4rem; }
  .ot-path { padding: 1rem; }
}
@media (max-width: 44.9375em) {
  .md-header__inner { min-height: 3rem; padding: 0 0.35rem; gap: 0; }
  .md-header__title { font-size: 0.8rem; }
  .md-content__inner:has(.ot-home) { margin: 0 0.9rem; }
  .ot-home { padding-top: 1.1rem; }
  .ot-hero { grid-template-columns: 1fr; gap: 1.5rem; padding-top: 0.5rem; padding-bottom: 1.5rem; }
  .ot-intro h1 { font-size: clamp(2.1rem, 8vw, 3rem); }
  .ot-intro > p:not([class]) { max-width: none; }
  .ot-flow { max-width: 28rem; width: 100%; justify-self: center; }
  .ot-principles { grid-template-columns: 1fr; gap: 1rem; padding: 1.1rem 0; }
  .ot-principles > div { gap: 0.8rem; }
  .ot-section-intro { padding-top: 1.7rem; }
  .ot-paths, .ot-bottom { grid-template-columns: 1fr; }
  .md-typeset .ot-path { padding: 1.1rem; }
  .ot-path h3 { margin-top: 0.7rem; }
  .ot-path p { margin-bottom: 0.8rem; }
  .ot-bottom { gap: 0.5rem; margin-top: 1.8rem; }
  .ot-more { border-left: 0; padding-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}