/* ============================================================
   Starlight-inspired theme for reasons-service
   Based on Astro Starlight's design tokens (props.css)
   ============================================================ */

/* --- Design Tokens: Dark theme (default) --- */

:root {
  /* Gray scale */
  --sl-color-white: hsl(0, 0%, 100%);
  --sl-color-gray-1: hsl(224, 20%, 94%);
  --sl-color-gray-2: hsl(224, 6%, 77%);
  --sl-color-gray-3: hsl(224, 6%, 56%);
  --sl-color-gray-4: hsl(224, 7%, 36%);
  --sl-color-gray-5: hsl(224, 10%, 23%);
  --sl-color-gray-6: hsl(224, 14%, 16%);
  --sl-color-gray-7: hsl(224, 14%, 14%);
  --sl-color-black: hsl(224, 10%, 10%);

  /* Accent (blue) */
  --sl-hue-accent: 234;
  --sl-color-accent-low: hsl(var(--sl-hue-accent), 54%, 20%);
  --sl-color-accent: hsl(var(--sl-hue-accent), 100%, 60%);
  --sl-color-accent-high: hsl(var(--sl-hue-accent), 100%, 85%);

  /* Semantic colors */
  --sl-hue-green: 101;
  --sl-color-green-low: hsl(var(--sl-hue-green), 39%, 22%);
  --sl-color-green: hsl(var(--sl-hue-green), 82%, 63%);
  --sl-color-green-high: hsl(var(--sl-hue-green), 82%, 80%);

  --sl-hue-orange: 41;
  --sl-color-orange-low: hsl(var(--sl-hue-orange), 39%, 22%);
  --sl-color-orange: hsl(var(--sl-hue-orange), 82%, 63%);
  --sl-color-orange-high: hsl(var(--sl-hue-orange), 82%, 87%);

  --sl-hue-red: 339;
  --sl-color-red-low: hsl(var(--sl-hue-red), 39%, 22%);
  --sl-color-red: hsl(var(--sl-hue-red), 82%, 63%);

  /* Semantic aliases */
  --sl-color-text: var(--sl-color-gray-2);
  --sl-color-text-accent: var(--sl-color-accent-high);
  --sl-color-bg: var(--sl-color-black);
  --sl-color-bg-nav: var(--sl-color-gray-6);
  --sl-color-bg-sidebar: var(--sl-color-gray-6);
  --sl-color-bg-inline-code: var(--sl-color-gray-5);
  --sl-color-hairline-light: var(--sl-color-gray-5);
  --sl-color-hairline: var(--sl-color-gray-6);

  /* Shadows */
  --sl-shadow-sm: 0px 1px 1px hsla(0, 0%, 0%, 0.12), 0px 2px 1px hsla(0, 0%, 0%, 0.24);
  --sl-shadow-md: 0px 8px 4px hsla(0, 0%, 0%, 0.08), 0px 5px 2px hsla(0, 0%, 0%, 0.08),
    0px 3px 2px hsla(0, 0%, 0%, 0.12), 0px 1px 1px hsla(0, 0%, 0%, 0.15);

  /* Typography scale */
  --sl-text-2xs: 0.75rem;
  --sl-text-xs: 0.8125rem;
  --sl-text-sm: 0.875rem;
  --sl-text-base: 1rem;
  --sl-text-lg: 1.125rem;
  --sl-text-xl: 1.25rem;
  --sl-text-2xl: 1.5rem;
  --sl-text-3xl: 1.8125rem;
  --sl-text-4xl: 2.1875rem;
  --sl-text-5xl: 2.625rem;

  /* Semantic text sizes */
  --sl-text-body: var(--sl-text-base);
  --sl-text-body-sm: var(--sl-text-xs);
  --sl-text-code: var(--sl-text-sm);
  --sl-text-h1: var(--sl-text-4xl);
  --sl-text-h2: var(--sl-text-3xl);
  --sl-text-h3: var(--sl-text-2xl);
  --sl-text-h4: var(--sl-text-xl);
  --sl-text-h5: var(--sl-text-lg);

  /* Line height */
  --sl-line-height: 1.75;
  --sl-line-height-headings: 1.2;

  /* Font stacks */
  --sl-font-system: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'Helvetica Neue', 'Noto Sans', Arial, sans-serif, 'Apple Color Emoji',
    'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
  --sl-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    'Liberation Mono', 'Courier New', monospace;

  /* Layout */
  --sl-content-width: 52rem;
  --sl-content-pad-x: 1rem;
  --sl-nav-height: 3.5rem;
  --sl-border-radius: 0.5rem;

  color-scheme: dark;
}

@media (min-width: 50em) {
  :root {
    --sl-text-h1: var(--sl-text-5xl);
    --sl-text-h2: var(--sl-text-4xl);
    --sl-text-h3: var(--sl-text-3xl);
    --sl-text-h4: var(--sl-text-2xl);
    --sl-nav-height: 4rem;
    --sl-content-pad-x: 1.5rem;
  }
}

/* --- Design Tokens: Light theme --- */

[data-theme='light'],
:root:not([data-theme]) {
  /* Only apply light by OS preference when no explicit theme is set */
}

[data-theme='light'] {
  --sl-color-white: hsl(224, 10%, 10%);
  --sl-color-gray-1: hsl(224, 14%, 16%);
  --sl-color-gray-2: hsl(224, 10%, 23%);
  --sl-color-gray-3: hsl(224, 7%, 36%);
  --sl-color-gray-4: hsl(224, 6%, 56%);
  --sl-color-gray-5: hsl(224, 6%, 77%);
  --sl-color-gray-6: hsl(224, 20%, 94%);
  --sl-color-gray-7: hsl(224, 19%, 97%);
  --sl-color-black: hsl(0, 0%, 100%);

  --sl-color-accent-high: hsl(var(--sl-hue-accent), 80%, 30%);
  --sl-color-accent: hsl(var(--sl-hue-accent), 90%, 60%);
  --sl-color-accent-low: hsl(var(--sl-hue-accent), 88%, 90%);

  --sl-color-green-high: hsl(var(--sl-hue-green), 80%, 22%);
  --sl-color-green: hsl(var(--sl-hue-green), 90%, 46%);
  --sl-color-green-low: hsl(var(--sl-hue-green), 85%, 90%);

  --sl-color-orange-high: hsl(var(--sl-hue-orange), 80%, 25%);
  --sl-color-orange: hsl(var(--sl-hue-orange), 90%, 60%);
  --sl-color-orange-low: hsl(var(--sl-hue-orange), 90%, 88%);

  --sl-color-red-high: hsl(var(--sl-hue-red), 80%, 30%);
  --sl-color-red: hsl(var(--sl-hue-red), 90%, 60%);
  --sl-color-red-low: hsl(var(--sl-hue-red), 80%, 90%);

  --sl-color-text-accent: var(--sl-color-accent);
  --sl-color-bg-nav: var(--sl-color-gray-7);
  --sl-color-bg-sidebar: var(--sl-color-bg);
  --sl-color-bg-inline-code: var(--sl-color-gray-6);
  --sl-color-hairline-light: var(--sl-color-gray-6);

  --sl-shadow-sm: 0px 1px 1px hsla(0, 0%, 0%, 0.06), 0px 2px 1px hsla(0, 0%, 0%, 0.06);
  --sl-shadow-md: 0px 8px 4px hsla(0, 0%, 0%, 0.03), 0px 5px 2px hsla(0, 0%, 0%, 0.03),
    0px 3px 2px hsla(0, 0%, 0%, 0.06), 0px 1px 1px hsla(0, 0%, 0%, 0.06);

  color-scheme: light;
}

/* Auto theme: follow OS preference when no data-theme attribute */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    --sl-color-white: hsl(224, 10%, 10%);
    --sl-color-gray-1: hsl(224, 14%, 16%);
    --sl-color-gray-2: hsl(224, 10%, 23%);
    --sl-color-gray-3: hsl(224, 7%, 36%);
    --sl-color-gray-4: hsl(224, 6%, 56%);
    --sl-color-gray-5: hsl(224, 6%, 77%);
    --sl-color-gray-6: hsl(224, 20%, 94%);
    --sl-color-gray-7: hsl(224, 19%, 97%);
    --sl-color-black: hsl(0, 0%, 100%);

    --sl-color-accent-high: hsl(var(--sl-hue-accent), 80%, 30%);
    --sl-color-accent: hsl(var(--sl-hue-accent), 90%, 60%);
    --sl-color-accent-low: hsl(var(--sl-hue-accent), 88%, 90%);

    --sl-color-green-high: hsl(var(--sl-hue-green), 80%, 22%);
    --sl-color-green: hsl(var(--sl-hue-green), 90%, 46%);
    --sl-color-green-low: hsl(var(--sl-hue-green), 85%, 90%);

    --sl-color-orange-high: hsl(var(--sl-hue-orange), 80%, 25%);
    --sl-color-orange: hsl(var(--sl-hue-orange), 90%, 60%);
    --sl-color-orange-low: hsl(var(--sl-hue-orange), 90%, 88%);

    --sl-color-red-high: hsl(var(--sl-hue-red), 80%, 30%);
    --sl-color-red: hsl(var(--sl-hue-red), 90%, 60%);
    --sl-color-red-low: hsl(var(--sl-hue-red), 80%, 90%);

    --sl-color-text-accent: var(--sl-color-accent);
    --sl-color-bg-nav: var(--sl-color-gray-7);
    --sl-color-bg-inline-code: var(--sl-color-gray-6);
    --sl-color-hairline-light: var(--sl-color-gray-6);

    --sl-shadow-sm: 0px 1px 1px hsla(0, 0%, 0%, 0.06), 0px 2px 1px hsla(0, 0%, 0%, 0.06);
    --sl-shadow-md: 0px 8px 4px hsla(0, 0%, 0%, 0.03), 0px 5px 2px hsla(0, 0%, 0%, 0.03),
      0px 3px 2px hsla(0, 0%, 0%, 0.06), 0px 1px 1px hsla(0, 0%, 0%, 0.06);

    color-scheme: light;
  }
}


/* --- CSS Reset --- */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  accent-color: var(--sl-color-accent);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--sl-font-system);
  font-size: var(--sl-text-body);
  line-height: var(--sl-line-height);
  color: var(--sl-color-text);
  background-color: var(--sl-color-bg);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

input, button, textarea, select { font: inherit; }
p, h1, h2, h3, h4, h5, h6, code { overflow-wrap: break-word; }
code { font-family: var(--sl-font-mono); }


/* --- Layout --- */

.container {
  width: 100%;
  max-width: var(--sl-content-width);
  margin-inline: auto;
  padding-inline: var(--sl-content-pad-x);
}

main.container {
  flex: 1;
  padding-block: 2rem;
}


/* --- Typography --- */

h1, h2, h3, h4, h5, h6 {
  color: var(--sl-color-white);
  line-height: var(--sl-line-height-headings);
  font-weight: 600;
}

h1 { font-size: var(--sl-text-h1); }
h2 { font-size: var(--sl-text-h2); }
h3 { font-size: var(--sl-text-h3); }
h4 { font-size: var(--sl-text-h4); }
h5 { font-size: var(--sl-text-h5); }

h1, h2, h3, h4, h5, h6 { margin-top: 1.5em; }
h1:first-child, h2:first-child, h3:first-child { margin-top: 0; }

p, ul, ol, dl, pre, blockquote, table, details { margin-top: 1rem; }
p:first-child, ul:first-child, ol:first-child { margin-top: 0; }

li + li { margin-top: 0.25rem; }

hgroup {
  margin-bottom: 1.5rem;
}
hgroup h1 { margin-bottom: 0.25rem; }
hgroup p {
  color: var(--sl-color-gray-3);
  font-size: var(--sl-text-lg);
}


/* --- Links --- */

a {
  color: var(--sl-color-text-accent);
  text-decoration: none;
}
a:hover {
  color: var(--sl-color-white);
  text-decoration: underline;
}


/* --- Navigation --- */

nav[aria-label] {
  background: var(--sl-color-bg-nav);
  border-bottom: 1px solid var(--sl-color-hairline-light);
  height: var(--sl-nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: var(--sl-content-pad-x);
  max-width: 100%;
  position: sticky;
  top: 0;
  z-index: 10;
}

nav[aria-label] ul {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

nav[aria-label] a {
  color: var(--sl-color-gray-2);
  font-size: var(--sl-text-sm);
}
nav[aria-label] a:hover {
  color: var(--sl-color-white);
  text-decoration: none;
}

nav .brand {
  font-weight: 600;
  font-size: var(--sl-text-lg);
  color: var(--sl-color-white);
}
nav .brand:hover { text-decoration: none; }

nav small {
  color: var(--sl-color-gray-3);
  font-size: var(--sl-text-xs);
}


/* --- Cards (article) --- */

article {
  background: var(--sl-color-gray-6);
  border: 1px solid var(--sl-color-hairline-light);
  border-radius: var(--sl-border-radius);
  padding: 1.25rem;
  margin-top: 0;
}

article header {
  padding-bottom: 0.75rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--sl-color-hairline-light);
}

article header strong,
article header h2 {
  color: var(--sl-color-white);
  font-size: var(--sl-text-base);
  margin: 0;
}

article footer {
  padding-top: 0.75rem;
  margin-top: 0.75rem;
  border-top: 1px solid var(--sl-color-hairline-light);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

article p {
  color: var(--sl-color-gray-3);
  font-size: var(--sl-text-sm);
  margin-top: 0.5rem;
}


/* --- Card grid --- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}


/* --- Tables --- */

table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
}

th, td {
  padding: 0.625rem 1rem;
  text-align: start;
  border-bottom: 1px solid var(--sl-color-hairline-light);
  vertical-align: baseline;
}

th {
  color: var(--sl-color-white);
  font-weight: 600;
  font-size: var(--sl-text-sm);
}

td {
  font-size: var(--sl-text-sm);
}

th:first-child, td:first-child { padding-inline-start: 0; }
th:last-child, td:last-child { padding-inline-end: 0; }


/* --- Forms --- */

label {
  display: block;
  margin-bottom: 1.25rem;
  color: var(--sl-color-white);
  font-size: var(--sl-text-sm);
  font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
input[type="search"],
textarea,
select {
  display: block;
  width: 100%;
  padding: 0.625rem 0.75rem;
  margin-top: 0.375rem;
  background: var(--sl-color-gray-5);
  color: var(--sl-color-text);
  border: 1px solid var(--sl-color-gray-4);
  border-radius: var(--sl-border-radius);
  font-size: var(--sl-text-base);
  line-height: var(--sl-line-height);
  transition: border-color 0.15s ease;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--sl-color-accent);
  box-shadow: 0 0 0 3px var(--sl-color-accent-low);
}

input::placeholder, textarea::placeholder {
  color: var(--sl-color-gray-4);
}


/* --- Buttons --- */

button,
[role="button"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: var(--sl-color-accent);
  color: hsl(0, 0%, 100%);
  border: 1px solid transparent;
  border-radius: var(--sl-border-radius);
  font-size: var(--sl-text-sm);
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease;
  line-height: 1.5;
  white-space: nowrap;
}

button:hover, [role="button"]:hover {
  background: hsl(var(--sl-hue-accent), 100%, 50%);
  text-decoration: none;
  color: hsl(0, 0%, 100%);
}

.outline {
  background: transparent;
  color: var(--sl-color-text-accent);
  border-color: var(--sl-color-accent);
}
.outline:hover {
  background: var(--sl-color-accent-low);
  color: var(--sl-color-text-accent);
}

.secondary {
  color: var(--sl-color-gray-2);
  border-color: var(--sl-color-gray-4);
}
.secondary:hover {
  background: var(--sl-color-gray-5);
  color: var(--sl-color-white);
  border-color: var(--sl-color-gray-3);
}

.outline.secondary {
  background: transparent;
  color: var(--sl-color-gray-2);
  border-color: var(--sl-color-gray-4);
}
.outline.secondary:hover {
  background: var(--sl-color-gray-5);
  color: var(--sl-color-white);
}


/* --- Inline code --- */

:not(pre) > code {
  background: var(--sl-color-bg-inline-code);
  padding: 0.125rem 0.375rem;
  border-radius: 0.25rem;
  font-size: var(--sl-text-code);
}

pre {
  background: var(--sl-color-gray-6);
  border: 1px solid var(--sl-color-gray-5);
  border-radius: var(--sl-border-radius);
  padding: 0.75rem 1rem;
  font-size: var(--sl-text-code);
  overflow-x: auto;
  tab-size: 2;
}

pre code {
  background: none;
  padding: 0;
  font-size: inherit;
}


/* --- Blockquotes --- */

blockquote {
  border-inline-start: 3px solid var(--sl-color-accent);
  padding-inline-start: 1rem;
  color: var(--sl-color-gray-3);
}


/* --- Horizontal rule --- */

hr {
  border: 0;
  border-bottom: 1px solid var(--sl-color-hairline);
  margin-block: 1.5rem;
}


/* --- Small / muted --- */

small {
  font-size: var(--sl-text-xs);
  color: var(--sl-color-gray-3);
}


/* --- Footer --- */

footer.container {
  padding-block: 1.5rem;
  border-top: 1px solid var(--sl-color-hairline-light);
  text-align: center;
}


/* --- Action grid (replaces Pico .grid) --- */

.action-grid {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}


/* ============================================================
   Custom Component Classes
   ============================================================ */

/* --- Stats grid --- */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
}

.stat-card {
  text-align: center;
  padding: 1rem;
  background: var(--sl-color-gray-6);
  border: 1px solid var(--sl-color-hairline-light);
  border-radius: var(--sl-border-radius);
}

.stat-card .value {
  font-size: var(--sl-text-3xl);
  font-weight: 700;
  color: var(--sl-color-white);
}

.stat-card .label {
  font-size: var(--sl-text-xs);
  color: var(--sl-color-gray-3);
  margin-top: 0.25rem;
}


/* --- Pipeline steps --- */

.pipeline-steps {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}

.pipeline-step {
  padding: 0.375rem 0.875rem;
  border-radius: var(--sl-border-radius);
  font-size: var(--sl-text-xs);
  font-weight: 500;
}

.pipeline-step.done {
  background: var(--sl-color-green-low);
  color: var(--sl-color-green-high);
}

.pipeline-step.active {
  background: var(--sl-color-orange-low);
  color: var(--sl-color-orange-high);
}

.pipeline-step.pending {
  background: var(--sl-color-gray-5);
  color: var(--sl-color-gray-3);
}


/* --- Belief rows --- */

.belief-row {
  padding: 1rem;
  margin-bottom: 0.5rem;
  border: 1px solid var(--sl-color-hairline-light);
  border-radius: var(--sl-border-radius);
}

.belief-row .belief-id {
  font-family: var(--sl-font-mono);
  font-weight: 600;
}

.belief-row .belief-source {
  font-size: var(--sl-text-xs);
  color: var(--sl-color-gray-3);
}


/* --- Entry / Report content --- */

.entry-content,
.report-content {
  max-width: 80ch;
  margin: 0 auto;
  line-height: 1.7;
}

.entry-content h1, .report-content h1 { margin-top: 0; }
.entry-content h2, .report-content h2 { margin-top: 2rem; }
.entry-content h3, .report-content h3 { margin-top: 1.5rem; }
.entry-content table, .report-content table { font-size: var(--sl-text-sm); }
.entry-content pre, .report-content pre { overflow-x: auto; }

.back-link {
  margin-bottom: 1rem;
  display: inline-block;
}

.entry-meta {
  font-size: var(--sl-text-xs);
  color: var(--sl-color-gray-3);
  margin-bottom: 1.5rem;
}

.belief-ref {
  font-family: var(--sl-font-mono);
  font-size: 0.85em;
  background: var(--sl-color-bg-inline-code);
  padding: 0.1rem 0.4rem;
  border-radius: 0.25rem;
  cursor: default;
}


/* --- Skip link (accessibility) --- */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.sr-only:focus {
  position: static;
  width: auto;
  height: auto;
  padding: 0.5rem 1rem;
  margin: 0;
  overflow: visible;
  clip: auto;
  background: var(--sl-color-accent);
  color: hsl(0, 0%, 100%);
  z-index: 1000;
}


/* --- Theme toggle --- */

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: transparent;
  border: 1px solid var(--sl-color-gray-4);
  border-radius: var(--sl-border-radius);
  padding: 0.25rem;
  cursor: pointer;
}

.theme-toggle span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.2rem 0.5rem;
  border-radius: calc(var(--sl-border-radius) - 2px);
  font-size: var(--sl-text-2xs);
  color: var(--sl-color-gray-3);
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
}

.theme-toggle span[aria-pressed="true"] {
  background: var(--sl-color-gray-5);
  color: var(--sl-color-white);
}

.theme-toggle span:hover {
  color: var(--sl-color-white);
}


/* --- Inline search (in card footers) --- */

.inline-search {
  display: inline-flex;
  gap: 0.25rem;
  align-items: center;
}

.inline-search input {
  margin: 0;
  padding: 0.25rem 0.5rem;
  width: 8rem;
  font-size: var(--sl-text-xs);
  height: auto;
}

.inline-search button {
  margin: 0;
  padding: 0.25rem 0.5rem;
  height: auto;
  font-size: var(--sl-text-xs);
}