/*
  RedSquid docs stylesheet
  ------------------------
  Shared by /docs/oem-onboarding.html and /docs/operator-onboarding.html.
  Mirrors the main site tokens (light default, dark via data-theme) and
  uses the same Outfit variable font + brand accent (#bb2525). Older
  /docs/styles.css remains in the repo for content typography utilities
  but the page-level chrome (header, sidebar, footer) is fully replaced
  by the rules below so the docs feel like part of the marketing site.
*/

/* ===== Brand tokens (light default) ===== */
:root {
  --rs-bg: #ffffff;
  --rs-bg-alt: #f5f5f7;
  --rs-bg-card: rgba(0, 0, 0, 0.04);
  --rs-bg-card-hover: rgba(0, 0, 0, 0.07);
  --rs-bg-code: #f1f1f3;
  --rs-bg-code-block: #14141c;

  --rs-ink: #141416;
  --rs-ink-muted: rgba(20, 20, 22, 0.72);
  --rs-ink-subtle: rgba(20, 20, 22, 0.6);
  --rs-ink-quiet: rgba(20, 20, 22, 0.5);
  --rs-ink-faint: rgba(20, 20, 22, 0.38);

  --rs-line: rgba(0, 0, 0, 0.12);
  --rs-line-soft: rgba(0, 0, 0, 0.08);

  --rs-accent: #bb2525;
  --rs-accent-hover: #a01f1f;
  --rs-accent-soft: rgba(187, 37, 37, 0.12);
  --rs-amber: #ff9a3a;
  --rs-indigo: #6b5bd8;
  --rs-rose: #ff6482;
  --rs-success: #16a34a;

  --rs-header-bg: rgba(255, 255, 255, 0.92);
  --rs-shadow-card: 0 8px 24px -8px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);

  --rs-radius-sm: 6px;
  --rs-radius-md: 10px;
  --rs-radius-lg: 16px;
  --rs-radius-xl: 24px;

  --rs-font: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
             'Helvetica Neue', Arial, sans-serif;
  --rs-font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
}

[data-theme='dark'] {
  --rs-bg: #0c0c0e;
  --rs-bg-alt: #14141a;
  --rs-bg-card: rgba(255, 255, 255, 0.03);
  --rs-bg-card-hover: rgba(255, 255, 255, 0.06);
  --rs-bg-code: rgba(255, 255, 255, 0.06);
  --rs-bg-code-block: #08080d;

  --rs-ink: #e9e9eb;
  --rs-ink-muted: rgba(233, 233, 235, 0.7);
  --rs-ink-subtle: rgba(233, 233, 235, 0.6);
  --rs-ink-quiet: rgba(233, 233, 235, 0.5);
  --rs-ink-faint: rgba(233, 233, 235, 0.4);

  --rs-line: rgba(255, 255, 255, 0.08);
  --rs-line-soft: rgba(255, 255, 255, 0.06);

  --rs-header-bg: rgba(12, 12, 14, 0.95);
  --rs-shadow-card: 0 8px 24px -8px rgba(0, 0, 0, 0.6), 0 2px 6px rgba(0, 0, 0, 0.4);
}

/* ===== Reset & base ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--rs-bg);
  color: var(--rs-ink);
}

body {
  font-family: var(--rs-font);
  background-color: var(--rs-bg);
  color: var(--rs-ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--rs-accent);
  text-decoration: none;
  transition: color 200ms ease;
}

a:hover {
  color: var(--rs-accent-hover);
}

::selection {
  background-color: var(--rs-accent);
  color: #ffffff;
}

/* ===== Site header (mirrors the main site nav) ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 64px;
  display: flex;
  align-items: center;
  background:
    linear-gradient(
      to right,
      transparent 0%,
      rgba(187, 37, 37, 0.38) 22%,
      rgba(255, 154, 58, 0.48) 50%,
      rgba(107, 91, 216, 0.38) 78%,
      transparent 100%
    ) bottom / 100% 1px no-repeat,
    var(--rs-header-bg);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
}

.nav-container {
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-logo img.logo-light {
  height: 28px;
  width: auto;
  display: block;
}
.nav-logo img.logo-dark {
  height: 28px;
  width: auto;
  display: none;
}
[data-theme='dark'] .nav-logo img.logo-light { display: none; }
[data-theme='dark'] .nav-logo img.logo-dark  { display: block; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--rs-ink-muted);
  transition: color 200ms ease;
}

.nav-links a:hover {
  color: var(--rs-ink);
}

.nav-links a.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 1.1rem;
  border-radius: 9999px;
  background: var(--rs-accent);
  color: #ffffff !important;
  font-weight: 600;
  transition: background-color 200ms ease, transform 200ms ease;
}

.nav-links a.nav-cta:hover {
  background: var(--rs-accent-hover);
  transform: translateY(-1px);
}

.theme-toggle {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--rs-line);
  border-radius: 9999px;
  cursor: pointer;
  color: var(--rs-ink-muted);
  transition: color 200ms ease, border-color 200ms ease;
}

.theme-toggle:hover {
  color: var(--rs-ink);
  border-color: var(--rs-line);
}

.theme-icon-sun { display: none; }
.theme-icon-moon { display: block; }
[data-theme='dark'] .theme-icon-sun { display: block; }
[data-theme='dark'] .theme-icon-moon { display: none; }

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-btn span {
  width: 22px;
  height: 2px;
  background: var(--rs-ink);
  border-radius: 2px;
  transition: 200ms ease;
}

@media (max-width: 880px) {
  .nav-links a:not(.nav-cta) {
    display: none;
  }
}

/* ===== Doc hero header =====
   margin-top clears the fixed 64px navbar AND adds a generous visual
   gap (banner not touching menu). Padding inside the hero gives the
   eyebrow + title room to breathe. */
.header {
  position: relative;
  margin-top: 96px;
  padding: 4rem 1.5rem 3rem;
  border-bottom: 1px solid var(--rs-line-soft);
  background: var(--rs-bg);
  overflow: hidden;
}

@media (min-width: 768px) {
  .header {
    margin-top: 112px;
    padding: 5rem 1.5rem 3.5rem;
  }
}

.header::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 100% at 8% 50%, rgba(187, 37, 37, 0.10), transparent 65%),
    radial-gradient(ellipse 60% 100% at 92% 50%, rgba(107, 91, 216, 0.08), transparent 65%);
  z-index: 0;
}

.header-content {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  z-index: 1;
}

.header .doc-type {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--rs-accent);
  margin-bottom: 1rem;
}

.header .logo {
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  font-weight: 300;
  letter-spacing: -0.01em;
  line-height: 1.1;
  color: var(--rs-ink);
  margin-bottom: 0.85rem;
}

.header .tagline {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  font-weight: 400;
  color: var(--rs-ink-muted);
  max-width: 50ch;
}

/* ===== Layout ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  padding: 3rem 1.5rem 4rem;
}

@media (max-width: 960px) {
  .container {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding-top: 2rem;
  }
}

/* ===== Sidebar (TOC) ===== */
.sidebar {
  position: sticky;
  top: 88px;
  align-self: start;
  background: var(--rs-bg-alt);
  border: 1px solid var(--rs-line-soft);
  border-radius: var(--rs-radius-lg);
  padding: 1.25rem 1.25rem 1.5rem;
}

.sidebar h3 {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--rs-ink-quiet);
  margin-bottom: 0.85rem;
}

.toc {
  list-style: none;
}

.toc li {
  margin: 0;
}

.toc a {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: var(--rs-radius-sm);
  font-size: 0.875rem;
  color: var(--rs-ink-muted);
  transition: background-color 200ms ease, color 200ms ease;
}

.toc a:hover {
  background-color: var(--rs-bg-card);
  color: var(--rs-ink);
}

/* ===== Content ===== */
.content {
  background: transparent;
  padding: 0;
  max-width: 100%;
  min-width: 0;
}

.content h1 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 300;
  letter-spacing: -0.01em;
  color: var(--rs-ink);
  margin: 0 0 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--rs-accent-soft);
}

.content h2 {
  font-size: clamp(1.4rem, 2.2vw, 1.85rem);
  font-weight: 400;
  color: var(--rs-ink);
  margin: 3rem 0 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--rs-line-soft);
}

.content h3 {
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--rs-accent);
  margin: 2rem 0 0.9rem;
}

.content h4 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--rs-ink);
  margin: 1.5rem 0 0.6rem;
}

.content p {
  font-size: 1rem;
  color: var(--rs-ink-muted);
  margin-bottom: 1rem;
  line-height: 1.75;
}

.content ul,
.content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
  color: var(--rs-ink-muted);
}

.content li {
  margin-bottom: 0.4rem;
  line-height: 1.7;
}

.content li::marker {
  color: var(--rs-accent);
}

.content strong {
  color: var(--rs-ink);
  font-weight: 600;
}

/* ===== Tables ===== */
.content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: var(--rs-bg);
  border: 1px solid var(--rs-line);
  border-radius: var(--rs-radius-md);
  overflow: hidden;
  font-size: 0.92rem;
}

.content thead th {
  background: var(--rs-bg-alt);
  color: var(--rs-ink);
  font-weight: 600;
  text-align: left;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--rs-line);
}

.content tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--rs-line-soft);
  color: var(--rs-ink-muted);
  vertical-align: top;
}

.content tbody tr:last-child td {
  border-bottom: 0;
}

.content tbody tr:hover {
  background: var(--rs-bg-card);
}

/* ===== Code ===== */
.content code {
  font-family: var(--rs-font-mono);
  font-size: 0.875em;
  padding: 0.15em 0.4em;
  border-radius: 4px;
  background: var(--rs-bg-code);
  color: var(--rs-ink);
}

.content pre {
  margin: 1.25rem 0;
  background: var(--rs-bg-code-block);
  border: 1px solid var(--rs-line);
  border-radius: var(--rs-radius-md);
  overflow-x: auto;
  font-family: var(--rs-font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
}

.content pre code {
  display: block;
  padding: 1rem 1.25rem;
  background: transparent;
  color: #d6d6dc;
  font-size: inherit;
  border-radius: 0;
  white-space: pre;
}

/* ===== Callout boxes ===== */
.success-box,
.warning-box,
.info-box,
.note-box {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-radius: var(--rs-radius-md);
  border: 1px solid var(--rs-line);
  background: var(--rs-bg-alt);
}

.success-box {
  border-left: 3px solid var(--rs-success);
}
.warning-box {
  border-left: 3px solid var(--rs-amber);
}
.info-box {
  border-left: 3px solid var(--rs-indigo);
}
.note-box {
  border-left: 3px solid var(--rs-accent);
}

.success-box strong,
.warning-box strong,
.info-box strong,
.note-box strong {
  display: inline-block;
  margin-bottom: 0.35rem;
  color: var(--rs-ink);
}

.success-box p,
.warning-box p,
.info-box p,
.note-box p {
  margin-bottom: 0;
  color: var(--rs-ink-muted);
}

/* ===== Highlight + feature grid (operator guide) ===== */
.highlight-box {
  margin: 1.75rem 0;
  padding: 1.5rem;
  border-radius: var(--rs-radius-lg);
  background: linear-gradient(135deg, var(--rs-accent-soft), transparent 60%),
              var(--rs-bg-alt);
  border: 1px solid var(--rs-line-soft);
}

.highlight-box > h3 {
  color: var(--rs-ink) !important;
  margin-top: 0 !important;
  font-size: 1.15rem;
  font-weight: 600;
}

.highlight-box ul {
  margin-top: 0.75rem;
}

.feature-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 1.5rem 0 2rem;
}

.feature-card {
  background: var(--rs-bg);
  border: 1px solid var(--rs-line);
  border-radius: var(--rs-radius-md);
  padding: 1.25rem 1.25rem 1.4rem;
  transition: border-color 200ms ease, transform 200ms ease;
}

.feature-card:hover {
  border-color: rgba(187, 37, 37, 0.45);
  transform: translateY(-2px);
}

.feature-card h4 {
  margin: 0 0 0.5rem !important;
  color: var(--rs-ink) !important;
  font-size: 1rem;
  font-weight: 600;
}

.feature-card p {
  margin: 0 !important;
  font-size: 0.9rem;
  color: var(--rs-ink-muted);
  line-height: 1.6;
}

.badge {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.15rem 0.55rem;
  border-radius: 9999px;
  background: var(--rs-accent-soft);
  color: var(--rs-accent);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  vertical-align: middle;
}

hr {
  margin: 2.5rem 0;
  border: 0;
  border-top: 1px solid var(--rs-line-soft);
}

/* ===== Checklists ===== */
.content ul.checklist {
  list-style: none;
  padding-left: 0;
}

.content ul.checklist li {
  padding: 0.4rem 0 0.4rem 1.75rem;
  position: relative;
  color: var(--rs-ink-muted);
}

.content ul.checklist li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.85rem;
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 1.5px solid var(--rs-accent);
  background: transparent;
}

.content ul.checklist li::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 1.1rem;
  width: 9px;
  height: 5px;
  border-left: 2px solid var(--rs-accent);
  border-bottom: 2px solid var(--rs-accent);
  transform: rotate(-45deg);
}

/* ===== Footer ===== */
.footer {
  margin-top: 4rem;
  border-top: 1px solid var(--rs-line-soft);
  background: var(--rs-bg-alt);
  padding: 3rem 1.5rem 2rem;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  gap: 2rem;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
}

@media (max-width: 880px) {
  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 540px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

.footer .brand-block img.logo-light {
  height: 28px;
  width: auto;
  display: block;
}
.footer .brand-block img.logo-dark { display: none; }
[data-theme='dark'] .footer .brand-block img.logo-light { display: none; }
[data-theme='dark'] .footer .brand-block img.logo-dark { display: block; }

.footer .brand-block p {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--rs-ink-subtle);
  max-width: 28ch;
  line-height: 1.6;
}

.footer h4 {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--rs-ink-quiet);
  margin-bottom: 1rem;
}

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

.footer ul li {
  margin-bottom: 0.6rem;
}

.footer ul a {
  font-size: 0.875rem;
  color: var(--rs-ink-muted);
  transition: color 200ms ease;
}

.footer ul a:hover {
  color: var(--rs-accent);
}

.footer-bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rs-line-soft);
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-bottom p {
  font-size: 0.75rem;
  color: var(--rs-ink-faint);
  margin: 0;
}

.footer-bottom .legal-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom .legal-links a {
  font-size: 0.75rem;
  color: var(--rs-ink-quiet);
}

.footer-bottom .legal-links a:hover {
  color: var(--rs-ink);
}

.footer-bottom .sharp-credit {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-bottom .sharp-credit span {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--rs-ink-quiet);
}

.footer-bottom .sharp-credit img {
  height: 22px;
  width: auto;
  opacity: 0.75;
}

/* ===== Print ===== */
@media print {
  .navbar,
  .sidebar,
  .footer,
  .mobile-menu-btn,
  .theme-toggle {
    display: none !important;
  }
  .header {
    margin-top: 0;
  }
  body {
    background: #ffffff;
    color: #000000;
  }
  .content h1,
  .content h2,
  .content h3,
  .content h4,
  .content p,
  .content li {
    color: #000000;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}