/* =========================================================
   Humans at the Heart, SlashNew Conf 2026
   Theme: deep green/black with pure white text in dark mode
   and pure black text on white in light mode. NO GREY.
   ========================================================= */

/* ---- Fonts: Mona Sans (preferred), fall back to Calibri ---- */
@font-face {
  font-family: "Mona Sans";
  src: url("https://github.com/mona-sans/raw/main/fonts/variable/Mona-Sans.var.woff2")
    format("woff2-variations");
  font-weight: 200 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --sn-font: "Mona Sans", Calibri, "Segoe UI", system-ui, -apple-system,
    "Helvetica Neue", Arial, sans-serif;

  /* Brand palette pulled from the conference artwork */
  --sn-green: #6da832;
  --sn-green-bright: #92D050;
  --sn-green-deep: #3d7016;
  --sn-pink: #3d7016;
  --sn-bg-dark: #0b0b12;
  --sn-surface-dark: #14141d;
  --sn-bg-light: #ffffff;
  --sn-surface-light: #f6fbef;
}

/* =========================================================
   Custom palettes (mapped from mkdocs.yml: slashnew-light / -dark)
   ========================================================= */

[data-md-color-scheme="slashnew-dark"] {
  --md-default-bg-color: var(--sn-bg-dark);
  --md-default-bg-color--light: var(--sn-bg-dark);
  --md-default-bg-color--lighter: var(--sn-surface-dark);
  --md-default-bg-color--lightest: var(--sn-surface-dark);

  /* Body text: PURE WHITE, never grey */
  --md-default-fg-color: #ffffff;
  --md-default-fg-color--light: #ffffff;
  --md-default-fg-color--lighter: #ffffff;
  --md-default-fg-color--lightest: #ffffff;
  --md-typeset-color: #ffffff;
  --md-typeset-a-color: var(--sn-green-bright);

  --md-primary-fg-color: #0a1505;
  --md-primary-fg-color--light: #14241a;
  --md-primary-fg-color--dark: #050a02;
  --md-primary-bg-color: #ffffff;
  --md-primary-bg-color--light: #ffffff;

  --md-accent-fg-color: var(--sn-green-bright);
  --md-accent-fg-color--transparent: rgba(146, 208, 80, 0.15);
  --md-accent-bg-color: #ffffff;

  --md-code-bg-color: #1a1a26;
  --md-code-fg-color: #ffffff;

  --md-footer-bg-color: #08080f;
  --md-footer-bg-color--dark: #050509;
  --md-footer-fg-color: #ffffff;
  --md-footer-fg-color--light: #ffffff;
  --md-footer-fg-color--lighter: #ffffff;
}

[data-md-color-scheme="slashnew-light"] {
  --md-default-bg-color: var(--sn-bg-light);
  --md-default-bg-color--light: var(--sn-bg-light);
  --md-default-bg-color--lighter: var(--sn-surface-light);
  --md-default-bg-color--lightest: var(--sn-surface-light);

  /* Body text: PURE BLACK, never grey */
  --md-default-fg-color: #000000;
  --md-default-fg-color--light: #000000;
  --md-default-fg-color--lighter: #000000;
  --md-default-fg-color--lightest: #000000;
  --md-typeset-color: #000000;
  --md-typeset-a-color: var(--sn-green-deep);

  --md-primary-fg-color: #0a1505;
  --md-primary-fg-color--light: #14241a;
  --md-primary-fg-color--dark: #050a02;
  --md-primary-bg-color: #ffffff;
  --md-primary-bg-color--light: #ffffff;

  --md-accent-fg-color: var(--sn-green-deep);
  --md-accent-fg-color--transparent: rgba(61, 112, 22, 0.12);
  --md-accent-bg-color: #ffffff;

  --md-code-bg-color: #eef7e3;
  --md-code-fg-color: #000000;

  --md-footer-bg-color: #0a1505;
  --md-footer-bg-color--dark: #070d04;
  --md-footer-fg-color: #ffffff;
  --md-footer-fg-color--light: #ffffff;
  --md-footer-fg-color--lighter: #ffffff;
}

/* =========================================================
   Global typography
   ========================================================= */
body,
.md-typeset,
.md-header,
.md-tabs,
.md-nav,
.md-footer {
  font-family: var(--sn-font) !important;
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4 {
  font-family: var(--sn-font) !important;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* H1 / H2: lime green on dark mode, pure black on light mode (the
   slide accent #92D050 is unreadable on white, so light mode reverts
   to pure black per the no-grey rule). */
.md-typeset h1 {
  color: var(--sn-green-bright);
}
[data-md-color-scheme="slashnew-light"] .md-typeset h1 {
  color: #000000;
}

.md-typeset h2 {
  color: var(--sn-green-bright);
  margin-top: 2.4rem;
}
[data-md-color-scheme="slashnew-light"] .md-typeset h2 {
  color: #000000;
}

/* H3+ stays pure white/black for max contrast */
.md-typeset h3,
.md-typeset h4,
.md-typeset h5,
.md-typeset h6,
.md-typeset p,
.md-typeset li,
.md-typeset blockquote,
.md-typeset td,
.md-typeset th,
.md-typeset figcaption {
  color: var(--md-typeset-color) !important;
}

/* Kill the "muted/grey" metadata text Material uses */
.md-typeset .md-source-file,
.md-source__repository,
.md-typeset small,
.md-meta,
.md-typeset .md-meta__item,
.md-typeset .headerlink {
  color: var(--md-typeset-color) !important;
  opacity: 1 !important;
}

/* Header bar: dark near-black with a lime accent stripe along the bottom */
.md-header {
  background: #0a1505;
  color: #ffffff;
  border-bottom: 3px solid var(--sn-green-bright);
}
.md-header__title,
.md-header__topic,
.md-header a {
  color: #ffffff !important;
}

/* Search */
.md-search__input {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}
.md-search__input::placeholder {
  color: #ffffff;
  opacity: 0.85;
}

/* Footer */
.md-footer,
.md-footer-meta {
  color: #ffffff !important;
}
.md-footer a,
.md-footer-meta a {
  color: #ffffff !important;
}

/* =========================================================
   Hero banner used at top of each chapter page
   ========================================================= */
.sn-hero {
  position: relative;
  margin: -1.5rem -1.5rem 2rem -1.5rem;
  padding: 2.4rem 1.5rem 3rem 1.5rem;
  background: var(--sn-green-bright);
  text-align: center;
  color: #000000;
}

[data-md-color-scheme="slashnew-light"] .sn-hero {
  background: var(--sn-green-bright);
  color: #000000;
}

.sn-hero a.sn-back {
  display: inline-block;
  color: #000000 !important;
  text-decoration: none;
  margin-bottom: 1rem;
  font-weight: 700;
}
.sn-hero a.sn-back:hover {
  text-decoration: underline;
}

.sn-hero img {
  display: block;
  margin: 0 auto;
  max-width: min(720px, 100%);
  width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(146, 208, 80, 0.25);
}

.sn-hero .sn-date,
.sn-hero .sn-cat {
  margin-top: 1.4rem;
  letter-spacing: 0.22em;
  font-size: 0.78rem;
  text-transform: uppercase;
  font-weight: 700;
  color: #000000 !important;
  opacity: 1;
}

/* =========================================================
   Landing page: subtle green-glow hero + chapter grid
   (Matches the reference "Ask Build Burn Less" layout.)
   ========================================================= */
.sn-landing {
  position: relative;
  margin: -1.5rem -1.5rem 2.4rem -1.5rem;
  padding: 4.5rem 1.5rem 4.5rem 1.5rem;
  text-align: center;
  background: var(--sn-green-bright);
  color: #000000;
}

[data-md-color-scheme="slashnew-light"] .sn-landing {
  background: var(--sn-green-bright);
  color: #000000;
}

/* Short black underline accent under the landing title (matches slide style). */
.sn-landing h1::after {
  content: "";
  display: block;
  width: 80px;
  height: 4px;
  margin: 1.1rem auto 0 auto;
  background: #000000;
  border-radius: 2px;
}

.sn-landing h1 {
  font-family: var(--sn-font) !important;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.1;
  font-weight: 800;
  color: #000000 !important;
  margin: 0 auto 0.8rem auto;
  max-width: 18ch;
  letter-spacing: -0.02em;
}
.sn-landing p.sn-sub {
  color: #000000 !important;
  font-size: 1.05rem;
  margin: 0 auto 1.8rem auto;
  max-width: 640px;
  opacity: 1;
}
.sn-landing .sn-pill {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  border-radius: 999px;
  background: #000000;
  border: 2px solid #000000;
  color: #ffffff !important;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: background 0.18s ease, color 0.18s ease;
}
.sn-landing .sn-pill:hover {
  background: #ffffff;
  color: #000000 !important;
}

/* Grid of chapters: 3 columns on desktop, responsive down to 1 */
.sn-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.6rem;
  margin: 0 auto 4rem auto;
  max-width: 1200px;
  padding: 0 0.5rem;
}

.sn-card {
  display: flex;
  flex-direction: column;
  background: #1a1a26;
  border-radius: 12px;
  overflow: hidden;
  text-decoration: none !important;
  color: var(--md-typeset-color) !important;
  border: 1px solid rgba(146, 208, 80, 0.14);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
[data-md-color-scheme="slashnew-light"] .sn-card {
  background: #ffffff;
  border: 1px solid rgba(61, 112, 22, 0.25);
  box-shadow: 0 2px 14px rgba(61, 112, 22, 0.08);
}

.sn-card:hover {
  transform: translateY(-4px);
  border-color: var(--sn-green-bright);
  box-shadow: 0 14px 40px rgba(61, 112, 22, 0.35);
}

.sn-card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  object-fit: cover;
  background: #0b0b12;
}

.sn-card .sn-card-body {
  padding: 1.2rem 1.3rem 1.4rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.sn-card .sn-cat {
  font-family: var(--sn-font) !important;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--sn-green-bright) !important;
  margin: 0;
}
[data-md-color-scheme="slashnew-light"] .sn-card .sn-cat {
  color: var(--sn-green-deep) !important;
}

.sn-card h3 {
  font-family: var(--sn-font) !important;
  font-size: 1.18rem;
  line-height: 1.3;
  margin: 0;
  color: var(--md-typeset-color) !important;
  font-weight: 700;
}

.sn-card p {
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0;
  color: var(--md-typeset-color) !important;
}

.sn-card .sn-read {
  margin-top: 0.4rem;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--sn-green-bright) !important;
}
[data-md-color-scheme="slashnew-light"] .sn-card .sn-read {
  color: var(--sn-green-deep) !important;
}

/* =========================================================
   Code blocks: ensure no grey text
   ========================================================= */
.md-typeset code,
.md-typeset pre {
  color: var(--md-code-fg-color) !important;
}

/* =========================================================
   Responsive tweaks
   ========================================================= */
@media (max-width: 600px) {
  .sn-landing {
    padding: 3rem 1rem 3rem 1rem;
  }
  .sn-landing h1 {
    font-size: 2rem;
  }
  .sn-hero {
    padding: 1.6rem 1rem 2rem 1rem;
  }
  .sn-grid {
    grid-template-columns: 1fr;
  }
}

/* =========================================================
   Accessibility: visible focus ring
   ========================================================= */
a:focus-visible,
button:focus-visible,
.sn-card:focus-visible,
.md-nav__link:focus-visible {
  outline: 3px solid var(--sn-green-bright);
  outline-offset: 3px;
  border-radius: 4px;
}