/* Sigil theme for the docfx "modern" template.
   Colours come from the REPL (apps/Sigil.Sound.Repl/wwwroot/css/app.css). Text is a plain sans-serif; monospace is for
   code only. Space and background tint separate things, not borders. The top bar is the one place that carries chrome. */

:root {
  --sg-teal: #1de9b6;
  --sg-teal-a: #1de9b61a;
  --sg-amber: #ffb000;
  --sg-blue: #5cc8ff;
  --sg-bar: #262832;
  --sg-bar-line: #3b3e4a;
  --sg-bar-fg: #d2d6dd;
  --sg-bar-dim: #a6abb5;
  --sg-bar-well: #14151b;
  --sg-bar-hover: #30323d;
  --bs-font-sans-serif: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --bs-font-monospace: Consolas, "Roboto Mono", ui-monospace, Menlo, monospace;
}

[data-bs-theme="dark"] {
  --bs-body-bg: #15161c;
  --bs-body-color: #e6e8ec;
  --bs-emphasis-color: #fff;
  --bs-secondary-color: #9aa0aa;
  --bs-secondary-bg: #1c1d24;
  --bs-tertiary-bg: #1f2028;
  --bs-border-color: #2a2c35;
  --bs-link-color: var(--sg-teal);
  --bs-link-color-rgb: 29, 233, 182;
  --bs-link-hover-color: #6ff5d6;
  --bs-link-hover-color-rgb: 111, 245, 214;
  --bs-code-color: #e6e8ec;
  --sg-panel: #1c1d24;
  --sg-well: #1f2028;
  --sg-hover: #262832;
  --sg-accent: var(--sg-teal);
  --sg-c: #8c929c;
  --sg-k: var(--sg-blue);
  --sg-n: var(--sg-teal);
  --sg-s: var(--sg-amber);
}

/* The light theme keeps the same structure; teal is darkened so it stays readable on white. */
[data-bs-theme="light"] {
  --bs-link-color: #0a7d65;
  --bs-link-color-rgb: 10, 125, 101;
  --bs-link-hover-color: #075f4c;
  --bs-link-hover-color-rgb: 7, 95, 76;
  --bs-code-color: #212529;
  --sg-panel: #f5f6f8;
  --sg-well: #f0f2f5;
  --sg-hover: #e9ecf0;
  --sg-accent: #0a7d65;
  --sg-c: #6b7280;
  --sg-k: #0b6fa8;
  --sg-n: #0a7d65;
  --sg-s: #a86a00;
}

body {
  font-size: 15px;
  line-height: 1.6;
}

:focus-visible {
  outline: 2px solid var(--sg-accent);
  outline-offset: 2px;
}

/* ---- Top bar: dark in both themes, like the REPL header --------------------------------- */

header {
  position: relative;
  background: var(--sg-bar) !important;
  border-bottom: 1px solid var(--sg-bar-line) !important;
  --bs-body-color: var(--sg-bar-fg);
  --bs-link-color: var(--sg-bar-fg);
  --bs-link-hover-color: #fff;
  --bs-emphasis-color: #fff;
  --bs-border-color: var(--sg-bar-line);
  --bs-tertiary-bg: var(--sg-bar-hover);
  color: var(--sg-bar-fg);
}

/* The brand gradient, as a hairline. */
header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, #c3a3f0 0%, #27a7f3 50%, #47cdab 100%);
  opacity: 0.7;
  pointer-events: none;
}

header .navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: 10px;
  padding: 0;
  color: #fff;
}

header .navbar-brand img#logo {
  height: 30px;
  width: auto;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
  font-family: "Montserrat", sans-serif;
  white-space: nowrap;
}

.brand-text .wordmark {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand-text .tagline {
  margin-top: 3px;
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.4em;
  color: var(--sg-teal);
}

/* Tabs on the left, search and the REPL button on the right. */
header #navpanel {
  align-items: center;
  gap: 10px;
}

header #navbar {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
}

header #navbar > .navbar-nav {
  order: 1;
  flex-direction: row;
  gap: 2px;
}

header #navbar > form.search {
  order: 2 !important;
  margin-left: auto;
  width: min(300px, 30vw);
}

header #navbar > form.icons {
  order: 3 !important;
  margin-left: 0 !important;
}

header .nav-link {
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 11px;
  border: 1px solid transparent;
  border-radius: 5px;
  color: var(--sg-bar-fg);
}

header .nav-link:hover {
  background: var(--sg-bar-hover);
  color: #fff;
}

header .nav-link.active {
  background: var(--sg-teal-a);
  border-color: var(--sg-teal);
  color: var(--sg-teal);
}

header form.search .form-control {
  height: 32px;
  background-color: var(--sg-bar-well);
  border: 1px solid var(--sg-bar-line);
  border-radius: 5px;
  color: #eef0f3;
}

header form.search .form-control:focus {
  border-color: var(--sg-teal);
  box-shadow: none;
}

header form.search .bi,
header .btn {
  color: var(--sg-bar-dim);
}

.repl-open {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 32px;
  padding: 0 12px;
  border: 1.5px solid var(--sg-teal);
  border-radius: 5px;
  color: var(--sg-teal) !important;
  white-space: nowrap;
  text-decoration: none !important;
}

.repl-open:hover {
  background: var(--sg-teal-a);
}

/* ---- Fewer lines: separate with space instead --------------------------------------------- */

footer,
.next-article,
#affix h5,
article hr,
article h2,
article table,
article th,
article td {
  border-color: transparent !important;
}

footer {
  background: var(--sg-panel);
  margin-top: 2rem;
}

/* Contents tree: quiet links, the current page tinted in teal. */
.toc .filter .form-control {
  background-color: var(--sg-well);
  border: 0;
  border-radius: 6px;
}

.toc .filter .form-control:focus {
  box-shadow: 0 0 0 2px var(--sg-accent);
}

.toc li > a {
  border-radius: 5px;
  color: var(--bs-body-color);
}

.toc li > a:hover {
  background: var(--sg-hover);
  text-decoration: none;
}

.toc li.active > a {
  background: var(--sg-teal-a);
  color: var(--sg-accent);
  font-weight: 500;
}

/* "In this article". */
#affix h5 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--bs-secondary-color);
}

#affix a {
  color: var(--bs-secondary-color);
}

#affix a:hover {
  color: var(--bs-body-color);
}

#affix a.active {
  color: var(--sg-accent);
}

/* ---- Article ---------------------------------------------------------------------------- */

article h1 {
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

article h2 {
  margin-top: 1.9rem;
  font-size: 21px;
  font-weight: 600;
}

article h3 {
  font-size: 17px;
  font-weight: 600;
}

:not(pre) > code {
  padding: 1px 5px;
  border-radius: 4px;
  background: var(--sg-well);
  color: var(--bs-body-color);
  font-size: 0.92em;
}

/* Tables: no grid, every other row tinted; the first column is the thing being defined. */
article table {
  --bs-table-bg: transparent;
  --bs-table-border-color: transparent;
  font-size: 14px;
}

article table th {
  font-weight: 600;
  color: var(--bs-secondary-color);
  background: transparent;
}

article table tbody tr:nth-child(odd) > * {
  --bs-table-bg-type: var(--sg-panel);
  background: var(--sg-panel);
  box-shadow: none;
}

article table td:first-child code {
  padding: 0;
  background: none;
  color: var(--sg-accent);
}

/* Code blocks: a tinted well, with the REPL editor's colours. */
article pre {
  border: 0;
  border-radius: 6px;
  background: var(--sg-well);
  font-size: 14px;
  line-height: 1.55;
}

article pre code.hljs {
  background: none;
  padding: 12px 14px;
  color: var(--bs-body-color);
}

.hljs-comment,
.hljs-quote { color: var(--sg-c); }
.hljs-keyword,
.hljs-built_in,
.hljs-type,
.hljs-literal { color: var(--sg-k); }
.hljs-number { color: var(--sg-n); }
.hljs-string { color: var(--sg-s); }

/* The "Open in REPL" link that main.js puts under each example. */
a.repl-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: -0.5rem 0 1.1rem 2px;
  padding: 0;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  border: 0;
  border-radius: 0;
}

a.repl-link:hover {
  text-decoration: underline;
}

/* The Lucide "play" icon (the outline the REPL's play button draws), coloured by the link text. */
a.repl-link::before {
  --sg-play: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolygon points='6 3 20 12 6 21 6 3'/%3E%3C/svg%3E");
  content: "";
  width: 17px;
  height: 17px;
  background: currentColor;
  -webkit-mask: var(--sg-play) center / contain no-repeat;
  mask: var(--sg-play) center / contain no-repeat;
}

/* Narrow screens: tabs and search wrap inside the collapsed panel. */
@media (max-width: 767.98px) {
  header #navbar {
    flex-wrap: wrap;
  }

  header #navbar > form.search {
    width: 100%;
    margin-left: 0;
  }

  .repl-open {
    margin-top: 6px;
  }
}

/* ---- Landing page (index.md, layout: landing) -------------------------------------------------
   Follows the marketing site's hero (sigil-audio-page Hero.astro): a mono uppercase headline, a primary and a ghost button,
   pills, and the sample in a window with the three brand dots. Colours and fonts stay the REPL's, so the two sites meet in
   the middle. */

body[data-layout="landing"] main.container-xxl {
  display: block;
  max-width: 1200px;
}

body[data-layout="landing"] .content {
  max-width: none;
  padding-top: 0;
}

.lp {
  display: flex;
  flex-direction: column;
  gap: 56px;
  padding: 48px 0 24px;
}

.lp h1,
.lp h2,
.lp h3 {
  margin: 0;
  border: 0;
}

.lp-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.lp-copy {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.lp-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font-family: var(--bs-font-monospace);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--bs-secondary-color);
}

.lp-pill {
  padding: 2px 8px;
  border: 1px solid var(--bs-border-color);
  border-radius: 3px;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--bs-body-color);
}

.lp-title {
  font-family: var(--bs-font-monospace);
  font-size: clamp(28px, 4vw, 48px) !important;
  font-weight: 700 !important;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--bs-emphasis-color);
}

.lp-sub {
  max-width: 52ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.55;
  color: var(--bs-secondary-color);
}

.lp-cta,
.lp-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.lp-links {
  gap: 8px;
}

.lp-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 3px;
  font-family: var(--bs-font-monospace);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none !important;
  transition: transform 0.15s ease, filter 0.15s ease, background 0.15s ease;
}

.lp-btn:hover {
  transform: translateY(-1px);
}

.lp-btn-primary {
  background: var(--sg-teal);
  border-color: var(--sg-teal);
  color: #04141a !important;
  box-shadow: 0 4px 16px rgba(25, 230, 180, 0.2);
}

.lp-btn-primary:hover {
  filter: brightness(1.08);
}

.lp-btn-ghost {
  border-color: var(--bs-border-color);
  color: var(--bs-emphasis-color) !important;
  background: var(--sg-panel);
}

.lp-btn-ghost:hover {
  border-color: var(--sg-accent);
}

.lp-chip {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 12px;
  border: 1px solid var(--bs-border-color);
  border-radius: 3px;
  font-family: var(--bs-font-monospace);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--bs-body-color);
  text-decoration: none !important;
}

.lp-chip:hover {
  border-color: var(--sg-accent);
  color: var(--sg-accent);
}

/* The sample, in the window the marketing site puts its trailer in. */
.lp-window {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--bs-border-color);
  border-radius: 6px;
  background: var(--sg-well);
}

.lp-chrome {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--sg-panel);
  font-family: var(--bs-font-monospace);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--bs-secondary-color);
}

.lp-dots {
  display: flex;
  gap: 6px;
}

.lp-dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.lp-dots i:nth-child(1) { background: #c3a3f0; }
.lp-dots i:nth-child(2) { background: #27a7f3; }
.lp-dots i:nth-child(3) { background: #47cdab; }

.lp-window pre {
  margin: 0;
  padding: 0;
  border-radius: 0;
  background: none;
}

.lp-window pre code.hljs {
  padding: 4px 18px 12px;
}

.lp-window a.repl-link {
  margin: 14px 0 18px 18px;
}

.lp-install {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: 14px 18px;
  border-radius: 6px;
  background: var(--sg-panel);
}

.lp-install-label {
  font-family: var(--bs-font-monospace);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--bs-secondary-color);
}

.lp-install > code {
  padding: 4px 10px;
  border-radius: 4px;
  background: var(--sg-well);
  color: var(--sg-accent);
  font-size: 14px;
}

.lp-install-note {
  margin-left: auto;
  font-size: 13px;
  color: var(--bs-secondary-color);
}

.lp-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.lp-card {
  display: block;
  padding: 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: var(--sg-panel);
  color: var(--bs-body-color) !important;
  text-decoration: none !important;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.lp-card:hover {
  border-color: var(--sg-accent);
  transform: translateY(-1px);
}

.lp-card h2 {
  margin-bottom: 6px;
  font-size: 16px !important;
  font-weight: 600;
  color: var(--bs-emphasis-color);
}

.lp-card p {
  margin: 0;
  font-size: 14px;
  color: var(--bs-secondary-color);
}

.lp-more h2 {
  margin-bottom: 14px;
  font-size: 12px !important;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bs-secondary-color);
}

.lp-more-cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.lp-more h3 {
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 600;
}

.lp-more ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.lp-more li {
  padding: 2px 0;
}

@media (max-width: 900px) {
  .lp-hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .lp-grid,
  .lp-more-cols {
    grid-template-columns: minmax(0, 1fr);
  }

  .lp-install-note {
    margin-left: 0;
  }
}

@media (max-width: 600px) {
  .lp {
    gap: 40px;
    padding-top: 28px;
  }

  .lp-btn {
    width: 100%;
    justify-content: center;
  }
}