/* SystemFromScratch® protocol library documentation theme (Material for MkDocs).
 * Colors follow the SystemFromScratch website (systemfromscratch.github.io). */

:root {
  --sfs-bg: #050b16;
  --sfs-bg-alt: #071122;
  --sfs-surface: #0a1628;
  --sfs-surface-2: #0d1c33;
  --sfs-border: #15294a;
  --sfs-border-strong: #1e3a66;
  --sfs-text: #e6edf7;
  --sfs-text-muted: #9aabc4;
  --sfs-accent: #2f8cff;
  --sfs-accent-strong: #1a6fe0;
  --sfs-accent-soft: rgba(47, 140, 255, 0.12);
  --md-primary-fg-color: var(--sfs-bg-alt);
  --md-primary-fg-color--light: var(--sfs-surface-2);
  --md-primary-fg-color--dark: var(--sfs-bg);
  --md-accent-fg-color: var(--sfs-accent);
  --md-typeset-a-color: var(--sfs-accent-strong);
}

[data-md-color-scheme="slate"] {
  --md-primary-fg-color: var(--sfs-bg-alt);
  --md-accent-fg-color: var(--sfs-accent);
  --md-typeset-a-color: #5ea6ff;
  --md-default-bg-color: #071122;
}

.md-header,
.md-tabs {
  border-bottom: 1px solid var(--sfs-border);
}

/* SystemFromScratch® logo (wide, with transparent margins): use the full header height */
.md-header__button.md-logo {
  padding: 0.1rem 0.2rem;
}

.md-header__button.md-logo img {
  height: 2.2rem;
}

/* Diagrams have a white card background; give them some breathing room. */
.md-typeset img[src$=".svg"] {
  display: block;
  margin: 1.2em auto;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 1px 4px rgba(11, 37, 69, 0.12);
}

.md-typeset img.screenshot {
  display: block;
  margin: 1.2em auto;
  border: 1px solid rgba(11, 37, 69, 0.18);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(11, 37, 69, 0.15);
}

.md-typeset figure figcaption {
  font-size: 0.75rem;
  color: var(--md-default-fg-color--light);
}

/* About page: SystemFromScratch® brand card and author card */
.md-typeset .sfs-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 1.6rem;
  padding: 1.6rem 1rem;
  border: 1px solid var(--sfs-border);
  border-radius: 14px;
  background:
    radial-gradient(ellipse 55% 70% at 50% 50%, rgba(26, 111, 224, 0.28), transparent 72%),
    var(--sfs-bg);
}

.md-typeset .sfs-brand p {
  margin: 0;
}

.md-typeset .sfs-brand img.sfs-brand__logo {
  display: block;
  width: min(26rem, 90%);
  margin: 0 auto;
  border: 0;
  box-shadow: none;
}

.md-typeset .sfs-author {
  margin: 0 0 1.2rem;
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--sfs-accent);
  border-radius: 0 10px 10px 0;
  background: var(--md-code-bg-color);
}

.md-typeset .sfs-author p {
  margin: 0.15rem 0;
}

.md-typeset .sfs-author .sfs-author__name {
  font-size: 1.1rem;
}

.md-typeset .sfs-author .sfs-author__role {
  color: var(--sfs-accent);
  font-weight: 600;
}

.sfs-portfolio__logo {
  display: block;
  width: 15rem;
  max-width: 100%;
  margin: 0 0 1rem -0.6rem;
}

/* ================================================================ landing page
 * docs/index.md uses overrides/home.html (driven by mkdocs.yml extra.landing). The page is always dark, like the
 * SystemFromScratch website, in both color schemes. */

body:has(.sfs-hero),
body:has(.sfs-hero) .md-main,
body:has(.sfs-hero) .md-container {
  background: var(--sfs-bg);
}

body:has(.sfs-hero) .md-header,
body:has(.sfs-hero) .md-tabs {
  background: rgba(5, 11, 22, 0.92);
  backdrop-filter: blur(8px);
}

body:has(.sfs-hero) .md-main__inner {
  max-width: none;
  margin: 0;
}

body:has(.sfs-hero) .md-content {
  max-width: none;
}

body:has(.sfs-hero) .md-content__inner {
  margin: 0;
  padding: 0;
}

body:has(.sfs-hero) .md-content__inner::before {
  display: none;
}

.sfs-container {
  max-width: 61rem;
  margin: 0 auto;
  padding: 0 1.2rem;
}

/* ---------------------------------------------------------------- hero */

.sfs-hero {
  position: relative;
  overflow: hidden;
  padding: 4.4rem 0 3.6rem;
  color: var(--sfs-text);
  background:
    radial-gradient(ellipse 60% 70% at 78% 40%, rgba(26, 111, 224, 0.22), transparent 70%),
    linear-gradient(180deg, #050b16 0%, #061020 100%);
  border-bottom: 1px solid var(--sfs-border);
}

.sfs-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(47, 140, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 140, 255, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(ellipse 70% 80% at 70% 40%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 80% at 70% 40%, #000 30%, transparent 75%);
  pointer-events: none;
}

.sfs-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  align-items: center;
  gap: 1.6rem;
}

.sfs-hero h1 {
  margin: 0;
  color: var(--sfs-text);
  font-size: clamp(1.7rem, 3.3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.sfs-accent {
  display: block;
  color: var(--sfs-accent);
}

.sfs-rule {
  position: relative;
  width: 120px;
  height: 2px;
  margin: 1.3rem 0;
  background: linear-gradient(90deg, var(--sfs-accent), transparent);
}

.sfs-rule::after {
  content: "";
  position: absolute;
  left: 62px;
  top: -3px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sfs-accent);
  box-shadow: 0 0 12px var(--sfs-accent);
}

.sfs-lead {
  max-width: 30rem;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--sfs-text-muted);
}

.sfs-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.7rem;
}

.sfs-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.1rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: 6px;
  transition: background 0.15s, border-color 0.15s;
}

.sfs-btn svg {
  width: 16px;
  height: 16px;
  transition: transform 0.15s;
}

.sfs-btn:hover svg {
  transform: translateX(3px);
}

.sfs-btn--primary,
.sfs-btn--primary:hover {
  color: #fff;
}

.sfs-btn--primary {
  background: var(--sfs-accent-strong);
  box-shadow: 0 8px 24px -10px rgba(47, 140, 255, 0.7);
}

.sfs-btn--primary:hover {
  background: var(--sfs-accent);
}

.sfs-btn--outline,
.sfs-btn--outline:hover {
  color: var(--sfs-text);
}

.sfs-btn--outline {
  background: rgba(10, 22, 40, 0.6);
  border-color: var(--sfs-border-strong);
}

.sfs-btn--outline:hover {
  border-color: var(--sfs-accent);
}

.sfs-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 0;
  margin: 2.2rem 0 0;
  padding: 0;
  list-style: none;
}

.sfs-features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0.6rem 0 0;
  padding: 0.2rem 0.6rem 0.2rem 0;
  border-right: 1px solid var(--sfs-border);
  font-size: 0.62rem;
  line-height: 1.35;
  color: var(--sfs-text-muted);
}

.sfs-features li:last-child {
  border-right: 0;
}

.sfs-features svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--sfs-accent);
}

.sfs-hero__visual img {
  display: block;
  width: 118%;
  max-width: none;
  margin-left: -4%;
  filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.6));
}

/* ---------------------------------------------------------------- sections */

.sfs-home {
  color: var(--sfs-text);
}

.sfs-section {
  max-width: 61rem;
  margin: 0 auto;
  padding: 3.6rem 1.2rem;
}

.sfs-section + .sfs-section {
  border-top: 1px solid var(--sfs-border);
}

.sfs-eyebrow {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sfs-accent);
}

.sfs-title,
.sfs-markdown.md-typeset h2 {
  margin: 0;
  color: var(--sfs-text);
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  font-weight: 600;
  line-height: 1.2;
}

.sfs-intro {
  max-width: 34rem;
  margin: 0.7rem 0 1.8rem;
  color: var(--sfs-text-muted);
  font-size: 0.8rem;
  line-height: 1.6;
}

.sfs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.sfs-card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1.3rem 1.3rem;
  color: var(--sfs-text);
  background: linear-gradient(180deg, var(--sfs-surface-2), var(--sfs-surface));
  border: 1px solid var(--sfs-border);
  border-radius: 10px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.sfs-card:hover {
  color: var(--sfs-text);
  border-color: var(--sfs-border-strong);
  transform: translateY(-3px);
  box-shadow: 0 18px 40px -20px rgba(47, 140, 255, 0.35);
}

.sfs-card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.sfs-card p {
  margin: 0;
  font-size: 0.72rem;
  line-height: 1.6;
  color: var(--sfs-text-muted);
}

.sfs-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.8rem;
  height: 2.8rem;
  margin-bottom: 1.1rem;
  border-radius: 12px;
  background: var(--sfs-accent-soft);
  border: 1px solid rgba(47, 140, 255, 0.25);
  color: var(--sfs-accent);
}

.sfs-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.sfs-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin: auto 0 0;
  padding: 0.8rem 0 0;
  list-style: none;
}

.sfs-tags li {
  padding: 0.15rem 0.45rem;
  font-size: 0.6rem;
  font-weight: 500;
  color: #8fc0ff;
  background: rgba(47, 140, 255, 0.1);
  border: 1px solid rgba(47, 140, 255, 0.22);
  border-radius: 4px;
  white-space: nowrap;
}

.sfs-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  text-align: center;
}

.sfs-stats div {
  padding: 1.2rem 0.6rem;
  border: 1px solid var(--sfs-border);
  border-radius: 10px;
  background: var(--sfs-bg-alt);
}

.sfs-stats strong {
  display: block;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--sfs-accent);
}

.sfs-stats span {
  font-size: 0.68rem;
  color: var(--sfs-text-muted);
}

/* Markdown part of the landing page (docs/index.md) */
.sfs-markdown.md-typeset {
  font-size: 0.78rem;
  color: var(--sfs-text);
}

.sfs-markdown.md-typeset h2 {
  margin: 0 0 0.8rem;
}

.sfs-markdown.md-typeset h2 ~ h2 {
  margin-top: 2.6rem;
}

.sfs-markdown.md-typeset p {
  color: var(--sfs-text-muted);
}

.sfs-markdown.md-typeset a {
  color: #5ea6ff;
}

.sfs-markdown.md-typeset .headerlink {
  display: none;
}

.sfs-markdown.md-typeset code {
  color: #cfe0f5;
  background: var(--sfs-surface-2);
}

.sfs-markdown.md-typeset .highlight,
.sfs-markdown.md-typeset pre > code {
  --md-code-bg-color: var(--sfs-surface);
  --md-code-fg-color: #d6e2f2;
  --md-code-hl-comment-color: #6b7d99;
  --md-code-hl-keyword-color: #5ea6ff;
  --md-code-hl-name-color: #e6edf7;
  --md-code-hl-function-color: #8fc0ff;
  --md-code-hl-string-color: #3fcf8e;
  --md-code-hl-number-color: #f0a35e;
  --md-code-hl-constant-color: #c792ea;
  --md-code-hl-operator-color: #9aabc4;
  --md-code-hl-punctuation-color: #9aabc4;
  --md-code-hl-special-color: #f07178;
}

.sfs-markdown.md-typeset pre > code {
  border: 1px solid var(--sfs-border);
  border-radius: 10px;
}

.sfs-markdown.md-typeset table:not([class]) {
  display: table;
  width: 100%;
  color: var(--sfs-text);
  background: var(--sfs-surface);
  border: 1px solid var(--sfs-border);
  border-radius: 10px;
}

.sfs-markdown.md-typeset table:not([class]) th {
  color: var(--sfs-text);
  background: var(--sfs-surface-2);
}

.sfs-markdown.md-typeset table:not([class]) td {
  border-top: 1px solid var(--sfs-border);
}

.sfs-portfolio {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem;
  border: 1px solid var(--sfs-border-strong);
  border-radius: 12px;
  background:
    radial-gradient(ellipse 60% 120% at 90% 10%, rgba(26, 111, 224, 0.22), transparent 70%),
    var(--sfs-surface);
}

.sfs-portfolio .sfs-intro {
  margin-bottom: 0;
}

.sfs-trademark {
  margin: 1.6rem 0 0;
  font-size: 0.62rem;
  color: #6b7d99;
}

@media screen and (max-width: 76em) {
  .sfs-hero__grid {
    grid-template-columns: 1fr;
  }

  .sfs-hero__visual img {
    width: 100%;
    margin: 0;
  }

  .sfs-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media screen and (max-width: 44em) {
  .sfs-grid,
  .sfs-stats {
    grid-template-columns: 1fr;
  }

  .sfs-features li {
    border-right: 0;
  }
}

/* Material's .md-typeset rules apply inside the content block; restore the
 * landing page styles with matching specificity. */
.md-typeset .sfs-section h2.sfs-title {
  margin: 0;
  font-weight: 600;
  letter-spacing: 0;
}

.md-typeset .sfs-card h3 {
  margin: 0 0 0.5rem;
  color: var(--sfs-text);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0;
}

.md-typeset .sfs-card p,
.md-typeset .sfs-intro {
  margin-top: 0;
}

.md-typeset .sfs-intro {
  margin: 0.7rem 0 1.8rem;
}

.md-typeset ul.sfs-tags {
  display: flex;
  margin: auto 0 0;
  padding: 0.8rem 0 0;
  list-style: none;
}

.md-typeset ul.sfs-tags li {
  margin: 0;
  list-style: none;
}

.md-typeset a.sfs-card,
.md-typeset a.sfs-card:hover {
  color: var(--sfs-text);
}

.md-typeset .sfs-eyebrow {
  margin-bottom: 0.5rem;
}

.md-typeset a.sfs-btn--primary,
.md-typeset a.sfs-btn--primary:hover {
  color: #fff;
}

.md-typeset a.sfs-btn--outline,
.md-typeset a.sfs-btn--outline:hover {
  color: var(--sfs-text);
}

.md-typeset .sfs-portfolio .sfs-actions {
  margin-top: 0;
}