/* ===== SIGNAL — Modern dev tools lineage ===== */
@import url('https://fonts.googleapis.com/css2?family=Geist:wght@400;500;600;700&family=Geist+Mono:wght@400;500&display=swap');

:root {
  --srunx-sans: 'Geist', ui-sans-serif, system-ui, sans-serif;
  --srunx-mono: 'Geist Mono', ui-monospace, SFMono-Regular, monospace;

  --md-text-font: var(--srunx-sans);
  --md-code-font: var(--srunx-mono);
}

/* ===== Light theme ===== */
[data-md-color-scheme="default"] {
  --md-default-bg-color:       #FCFCFC;
  --md-default-fg-color:       #0B0D0E;
  --md-default-fg-color--light: rgba(11, 13, 14, 0.68);
  --md-default-fg-color--lighter: rgba(11, 13, 14, 0.38);
  --md-default-fg-color--lightest: rgba(11, 13, 14, 0.10);
  --md-primary-fg-color:       #0B0D0E;
  --md-primary-bg-color:       #FCFCFC;
  --md-accent-fg-color:        #6B9A00; /* lime dialed down for legibility on white */
  --md-typeset-a-color:        #0B0D0E;
  --md-code-bg-color:          #F4F4F5;
  --md-code-fg-color:          #0B0D0E;
}

/* ===== Dark theme ===== */
[data-md-color-scheme="slate"] {
  --md-default-bg-color:       #0B0D0E;
  --md-default-fg-color:       #C4C4C8;  /* body ~78% */
  --md-default-fg-color--light: #9A9A9D;  /* dim ~60% */
  --md-default-fg-color--lighter: #6B6B6E; /* rule / divider ~42% */
  --md-default-fg-color--lightest: rgba(237, 237, 237, 0.08);
  --md-primary-fg-color:       #0B0D0E;
  --md-primary-bg-color:       #EDEDED;
  --md-accent-fg-color:        #C6F24F; /* electric lime on dark */
  --md-typeset-a-color:        #E3E3E6; /* link slightly brighter than body */
  --md-code-bg-color:          #151719;
  --md-code-fg-color:          #D9D9DC;
}

/* Brighten headings / strong so they stand above body */
[data-md-color-scheme="slate"] .md-typeset h1,
[data-md-color-scheme="slate"] .md-typeset h2,
[data-md-color-scheme="slate"] .md-typeset h3,
[data-md-color-scheme="slate"] .md-typeset h4,
[data-md-color-scheme="slate"] .md-typeset h5,
[data-md-color-scheme="slate"] .md-typeset h6 {
  color: #F5F5F7;
}
[data-md-color-scheme="slate"] .md-typeset strong,
[data-md-color-scheme="slate"] .md-typeset b,
[data-md-color-scheme="slate"] .srunx-hero h1 {
  color: #F5F5F7;
}
/* Sidebar / TOC: dimmer than body by default, brighter only on hover/active */
[data-md-color-scheme="slate"] .md-nav__link {
  color: var(--md-default-fg-color--light);
}
[data-md-color-scheme="slate"] .md-nav__link:hover,
[data-md-color-scheme="slate"] .md-nav__link--active {
  color: #F5F5F7;
}
/* Table/admonition titles should use heading brightness */
[data-md-color-scheme="slate"] .md-typeset .admonition-title,
[data-md-color-scheme="slate"] .md-typeset summary {
  color: #F5F5F7;
}

/* ===== Typography ===== */
.md-typeset {
  line-height: 1.65;
  font-feature-settings: "ss01", "cv11";
}
.md-typeset h1,
.md-typeset h2,
.md-typeset h3 {
  font-family: var(--srunx-sans);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.md-typeset h1 { font-size: 2.1rem; font-weight: 700; }
.md-typeset h2 { font-size: 1.55rem; margin-top: 3rem; letter-spacing: -0.025em; }
.md-typeset h3 { font-size: 1.15rem; letter-spacing: -0.01em; }
.md-typeset p  { max-width: 72ch; }

/* ===== Hero ===== */
.srunx-hero {
  padding: 3rem 0 2.5rem;
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
  margin-bottom: 2.5rem;
}
.srunx-hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.05;
  max-width: 18ch;
  margin: 0 0 1.2rem;
}
.srunx-hero .accent {
  color: var(--md-accent-fg-color);
  font-style: normal;
}
.srunx-hero .lede {
  font-size: 1.08rem;
  max-width: 60ch;
  line-height: 1.6;
  color: var(--md-default-fg-color--light);
  margin-bottom: 1.8rem;
}

/* ===== Status pill (signature element) ===== */
.srunx-status {
  font-family: var(--srunx-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--md-default-fg-color--lighter);
  border-radius: 99px;
  display: inline-flex;
  gap: 0.5rem;
  align-items: center;
  color: var(--md-default-fg-color--light);
  margin-bottom: 1.5rem;
}
.srunx-status::before {
  content: "●";
  color: var(--md-accent-fg-color);
  font-size: 0.6rem;
  animation: srunx-pulse 2.2s ease-in-out infinite;
}
@keyframes srunx-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.35; }
}

/* ===== Mono kicker for sections ===== */
.srunx-kicker {
  font-family: var(--srunx-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--md-default-fg-color--lighter);
  display: block;
  margin: 3.5rem 0 1rem;
}

/* ===== Grid cards — sharp, minimal, accent underline on hover ===== */
.md-typeset .grid.cards > :is(ul, ol) > li,
.md-typeset .grid > .card {
  border-radius: 4px;
  border: 1px solid var(--md-default-fg-color--lightest);
  padding: 1.2rem 1.3rem;
  background: transparent;
  transition: border-color .18s ease, transform .18s ease, background-color .18s ease;
  position: relative;
}
.md-typeset .grid.cards > :is(ul, ol) > li:hover {
  border-color: var(--md-default-fg-color--lighter);
  transform: translateY(-1px);
}
.md-typeset .grid.cards > :is(ul, ol) > li::after {
  content: "";
  position: absolute;
  left: 1.3rem;
  right: 1.3rem;
  bottom: 0;
  height: 1px;
  background: var(--md-accent-fg-color);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .24s ease;
}
.md-typeset .grid.cards > :is(ul, ol) > li:hover::after {
  transform: scaleX(1);
}

/* ===== Buttons — dev tools look ===== */
.md-typeset .md-button {
  border-radius: 4px;
  font-family: var(--srunx-sans);
  font-weight: 500;
  letter-spacing: -0.005em;
  border-width: 1px;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.md-typeset .md-button--primary {
  background: var(--md-default-fg-color);
  color: var(--md-default-bg-color);
  border-color: var(--md-default-fg-color);
}
.md-typeset .md-button--primary:hover {
  background: var(--md-accent-fg-color);
  border-color: var(--md-accent-fg-color);
  color: #0B0D0E;
}
.md-typeset .md-button:not(.md-button--primary):hover {
  border-color: var(--md-accent-fg-color);
  color: var(--md-accent-fg-color);
  background: transparent;
}

/* ===== Code blocks ===== */
.md-typeset pre,
.md-typeset .highlight {
  font-size: 0.88em;
  line-height: 1.6;
  font-feature-settings: "liga" 0, "calt" 1, "ss01" 1;
}
.md-typeset pre > code,
.md-typeset .md-code__content {
  font-size: inherit;
}
.md-typeset code {
  border-radius: 3px;
  padding: 0.1rem 0.35rem;
  font-size: 0.84em;
}

/* ===== Links: dim underline by default, accent on hover ===== */
.md-typeset a:not(.md-button):not(.md-nav__link) {
  text-decoration: none;
  background-image: linear-gradient(var(--md-default-fg-color--lighter), var(--md-default-fg-color--lighter));
  background-size: 100% 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  padding-bottom: 1px;
  transition: background-image .2s ease, color .18s ease;
}
.md-typeset a:not(.md-button):not(.md-nav__link):hover {
  background-image: linear-gradient(var(--md-accent-fg-color), var(--md-accent-fg-color));
  color: var(--md-accent-fg-color);
}

/* ===== Header refinements ===== */
.md-header {
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
  box-shadow: none;
}
.md-tabs {
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
}

/* ===== Tabs (admonition-style content tabs) ===== */
.md-typeset .tabbed-labels > label {
  font-family: var(--srunx-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}