/* ============================================================
   Ceres brand layer for the DocFX "modern" template
   Theme: tech cyan-blue, dark-first
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ---------- Brand tokens ---------- */
:root {
  --ceres-cyan: #00c2d1;
  --ceres-cyan-bright: #22d3ee;
  --ceres-blue: #3b82f6;
  --ceres-grad: linear-gradient(120deg, #00c2d1 0%, #3b82f6 100%);
  --ceres-radius: 14px;
  --ceres-radius-sm: 10px;

  --ceres-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --ceres-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono",
    Menlo, Consolas, "Liberation Mono", monospace;
}

/* ---------- Map Bootstrap primary / links to brand ---------- */
:root,
[data-bs-theme="light"] {
  --bs-primary: #0892a3;
  --bs-primary-rgb: 8, 146, 163;
  --bs-link-color: #0a7d8c;
  --bs-link-color-rgb: 10, 125, 140;
  --bs-link-hover-color: #00525c;
  --bs-link-hover-color-rgb: 0, 82, 92;
  --bs-border-radius: var(--ceres-radius-sm);
}

[data-bs-theme="dark"] {
  --bs-primary: var(--ceres-cyan);
  --bs-primary-rgb: 0, 194, 209;
  --bs-link-color: var(--ceres-cyan-bright);
  --bs-link-color-rgb: 34, 211, 238;
  --bs-link-hover-color: #67e8f9;
  --bs-link-hover-color-rgb: 103, 232, 249;

  --bs-body-bg: #0d1117;
  --bs-body-bg-rgb: 13, 17, 23;
  --bs-body-color: #c4ccd6;
  --bs-emphasis-color: #f0f6fc;
  --bs-emphasis-color-rgb: 240, 246, 252;
  --bs-border-color: #21262d;
  --bs-secondary-bg: #161b22;
  --bs-secondary-bg-rgb: 22, 27, 34;
  --bs-tertiary-bg: #11151b;
}

/* ---------- Typography ---------- */
body {
  font-family: var(--ceres-font);
  letter-spacing: -0.003em;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6,
.navbar-brand {
  font-family: var(--ceres-font);
  letter-spacing: -0.02em;
  font-weight: 700;
}

article h2 {
  margin-top: 2.2rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--bs-border-color);
}

article h2::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 1.05em;
  margin-right: 0.6rem;
  vertical-align: -0.16em;
  border-radius: 3px;
  background: var(--ceres-grad);
}

/* ---------- Top navigation ---------- */
.navbar {
  background-color: rgba(13, 17, 23, 0.72) !important;
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--bs-border-color);
}

[data-bs-theme="light"] .navbar {
  background-color: rgba(255, 255, 255, 0.82) !important;
}

.navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 800;
  font-size: 1.15rem;
}

.navbar-brand img {
  height: 26px;
  width: auto;
  color: var(--ceres-cyan); /* drives currentColor in the SVG logo */
}

.navbar .nav-link.active,
.navbar .nav-link:hover {
  color: var(--bs-link-color) !important;
}

/* search box */
#search-query,
.form-control {
  border-radius: var(--ceres-radius-sm);
}
#search-query:focus,
.form-control:focus {
  border-color: var(--ceres-cyan);
  box-shadow: 0 0 0 0.18rem rgba(0, 194, 209, 0.25);
}

/* ---------- Sidebar / TOC ---------- */
.toc .nav > li > a.active,
.toc .nav > li.active > a {
  color: var(--bs-link-color) !important;
  font-weight: 600;
}
.affix ul > li.active > a,
#affix a.active {
  color: var(--bs-link-color) !important;
  border-left-color: var(--ceres-cyan) !important;
}

/* ---------- Code ---------- */
code {
  font-family: var(--ceres-mono);
}

:not(pre) > code {
  color: var(--ceres-cyan-bright);
  background: rgba(0, 194, 209, 0.1);
  padding: 0.14em 0.42em;
  border-radius: 6px;
  font-size: 0.875em;
}
[data-bs-theme="light"] :not(pre) > code {
  color: #0a7d8c;
  background: rgba(8, 146, 163, 0.1);
}

pre {
  border-radius: var(--ceres-radius);
  border: 1px solid var(--bs-border-color);
  padding: 1rem 1.1rem;
  font-size: 0.86rem;
  line-height: 1.6;
}
[data-bs-theme="dark"] pre {
  background: #0a0d12 !important;
}

/* ---------- Tables ---------- */
table:not(.table-borderless) {
  border-radius: var(--ceres-radius-sm);
  overflow: hidden;
  border: 1px solid var(--bs-border-color);
}
table thead th {
  background: var(--bs-secondary-bg);
  border-bottom: 2px solid var(--bs-border-color) !important;
}

/* ---------- Blockquotes / alerts ---------- */
blockquote {
  border-left: 3px solid var(--ceres-cyan);
  background: rgba(0, 194, 209, 0.06);
  border-radius: 0 var(--ceres-radius-sm) var(--ceres-radius-sm) 0;
  padding: 0.7rem 1rem;
}

/* ---------- Images in articles ---------- */
article img {
  border-radius: var(--ceres-radius-sm);
  border: 1px solid var(--bs-border-color);
  max-width: 100%;
}

/* ============================================================
   Landing page components (used by index.md)
   ============================================================ */
.ceres-hero {
  position: relative;
  margin: -1.5rem -1rem 3.5rem;
  padding: 4rem 1.5rem 3.75rem;
  border-radius: var(--ceres-radius);
  overflow: hidden;
  background:
    radial-gradient(circle at 18% -10%, rgba(0, 194, 209, 0.22), transparent 50%),
    radial-gradient(circle at 92% 120%, rgba(59, 130, 246, 0.2), transparent 48%);
}

/* node-connection grid */
.ceres-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(120, 170, 210, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 170, 210, 0.08) 1px, transparent 1px);
  background-size: 38px 38px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 35% 40%, #000 0%, transparent 78%);
  mask-image: radial-gradient(ellipse 80% 70% at 35% 40%, #000 0%, transparent 78%);
  pointer-events: none;
}

.ceres-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 4rem;
  align-items: center;
}
/* prevent grid blow-out (image column overflowing the viewport) */
.ceres-hero-inner > * {
  min-width: 0;
}

.ceres-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.32rem 0.8rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ceres-cyan-bright);
  background: rgba(0, 194, 209, 0.1);
  border: 1px solid rgba(0, 194, 209, 0.32);
  margin-bottom: 1.15rem;
}
[data-bs-theme="light"] .ceres-hero-eyebrow {
  color: #0a7d8c;
}

.ceres-hero-title {
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  line-height: 1.12;
  font-weight: 800;
  margin: 0 0 1rem;
}
.ceres-hero-title .grad {
  background: var(--ceres-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.ceres-hero-sub {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.6;
  color: var(--bs-secondary-color, #8b949e);
  margin: 0 0 1.7rem;
  max-width: 34rem;
}

.ceres-hero-banner {
  display: block;
  width: 100%;
  height: auto;
  margin: 0;
  border-radius: var(--ceres-radius) !important;
  border: 1px solid var(--bs-border-color);
  box-shadow: 0 28px 70px -26px rgba(0, 194, 209, 0.55);
}

.ceres-hero-actions {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.ceres-hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.6rem;
}
.ceres-hero-badges span {
  font-size: 0.78rem;
  font-weight: 500;
  padding: 0.32rem 0.7rem;
  border-radius: 8px;
  color: var(--bs-body-color);
  background: var(--bs-secondary-bg);
  border: 1px solid var(--bs-border-color);
}

@media (max-width: 900px) {
  .ceres-hero {
    padding: 3rem 1.25rem;
  }
  .ceres-hero-inner {
    grid-template-columns: 1fr;
    gap: 2.25rem;
    text-align: center;
  }
  .ceres-hero-sub {
    margin-left: auto;
    margin-right: auto;
  }
  .ceres-hero-actions,
  .ceres-hero-badges {
    justify-content: center;
  }
  .ceres-hero-banner {
    max-width: 640px;
    margin: 0 auto;
  }
}

/* ---------- Buttons ---------- */
.ceres-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.72rem 1.5rem;
  border-radius: var(--ceres-radius-sm);
  font-weight: 600;
  text-decoration: none !important;
  transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}
.ceres-btn-primary {
  background: var(--ceres-grad);
  color: #fff !important;
  box-shadow: 0 10px 28px -10px rgba(0, 194, 209, 0.65);
}
.ceres-btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.06);
}
.ceres-btn-ghost {
  border: 1px solid var(--bs-border-color);
  background: var(--bs-secondary-bg);
  color: var(--bs-emphasis-color) !important;
}
.ceres-btn-ghost:hover {
  transform: translateY(-2px);
  border-color: var(--ceres-cyan);
}

/* ---------- Feature cards ---------- */
.ceres-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
  margin: 2.25rem 0 3rem;
}
.ceres-card {
  padding: 1.5rem 1.4rem;
  border: 1px solid var(--bs-border-color);
  border-radius: var(--ceres-radius);
  background: var(--bs-secondary-bg);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.ceres-card:hover {
  transform: translateY(-4px);
  border-color: var(--ceres-cyan);
  box-shadow: 0 16px 38px -16px rgba(0, 194, 209, 0.4);
}
.ceres-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--ceres-radius-sm);
  background: rgba(0, 194, 209, 0.12);
  font-size: 1.4rem;
  margin-bottom: 0.85rem;
}
.ceres-card h3 {
  font-size: 1.1rem;
  margin: 0 0 0.4rem;
}
.ceres-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--bs-secondary-color, #8b949e);
}
.ceres-card a.stretched {
  text-decoration: none;
  color: inherit;
}

/* ---------- "Next steps" grid ---------- */
.ceres-next {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
  margin: 1.75rem 0 2.5rem;
}
.ceres-next-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--bs-border-color);
  border-radius: var(--ceres-radius-sm);
  background: var(--bs-secondary-bg);
  text-decoration: none !important;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.ceres-next-item:hover {
  border-color: var(--ceres-cyan);
  transform: translateY(-2px);
}
.ceres-next-item strong {
  color: var(--bs-link-color);
  font-weight: 600;
}
.ceres-next-item span {
  font-size: 0.86rem;
  color: var(--bs-secondary-color, #8b949e);
}

/* ---------- Get Started: install steps + screenshot ---------- */
.ceres-install {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 2.5rem;
  align-items: start;
  margin: 1.5rem 0 2rem;
}
.ceres-install > * {
  min-width: 0;
}

.ceres-steps {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}
.ceres-step {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
}
.ceres-step-num {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-weight: 700;
  color: #fff;
  background: var(--ceres-grad);
  box-shadow: 0 6px 16px -6px rgba(0, 194, 209, 0.65);
  flex-shrink: 0;
}
/* timeline connector spanning from this step's number to the next */
.ceres-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 18px;
  top: 42px;
  bottom: -1.6rem;
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(rgba(0, 194, 209, 0.7), rgba(0, 194, 209, 0.08));
}
.ceres-step-body h3 {
  font-size: 1.05rem;
  margin: 0.35rem 0 0.4rem;
}
.ceres-step-body p {
  margin: 0 0 0.5rem;
  font-size: 0.94rem;
  color: var(--bs-secondary-color, #8b949e);
}
.ceres-step-body pre {
  margin: 0.5rem 0;
  font-size: 0.82rem;
}
.ceres-step-note {
  font-size: 0.86rem;
}

.ceres-install-shot {
  margin: 0;
}
.ceres-install-shot img {
  display: block;
  width: 100%;
  max-width: 340px;
  margin: 0 auto;
  border-radius: var(--ceres-radius) !important;
  border: 1px solid var(--bs-border-color);
  box-shadow: 0 24px 60px -28px rgba(0, 194, 209, 0.5);
}
.ceres-install-shot figcaption {
  margin-top: 0.65rem;
  font-size: 0.82rem;
  text-align: center;
  color: var(--bs-secondary-color, #8b949e);
}

@media (max-width: 860px) {
  .ceres-install {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* ---------- Custom scrollbar (dark) ---------- */
[data-bs-theme="dark"] ::-webkit-scrollbar {
  width: 11px;
  height: 11px;
}
[data-bs-theme="dark"] ::-webkit-scrollbar-thumb {
  background: #30363d;
  border-radius: 6px;
  border: 2px solid var(--bs-body-bg);
}
[data-bs-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: #3f4651;
}

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--bs-border-color);
  color: var(--bs-secondary-color, #8b949e);
}