/* ── retrievalagent docs theme ──────────────────────────────────────── */
/* Brand palette (matches the logo / handoff design):
 *   ink      #0B0F14   — primary text, dark surfaces
 *   paper    #FAF8F4   — light surfaces
 *   accent   #FF5B2E   — terminal "answer" node, links, CTAs
 *   graphite #2A323D   — secondary text
 *   mist     #E8E4DB   — borders, dividers
 *   green    #16A34A   — success / pass states
 */

:root {
  --ra-ink:      #0B0F14;
  --ra-paper:    #FAF8F4;
  --ra-accent:   #FF5B2E;
  --ra-accent-d: #E04518;
  --ra-graphite: #2A323D;
  --ra-mist:     #E8E4DB;
  --ra-green:    #16A34A;
}

/* Material color overrides */
[data-md-color-scheme="default"] {
  --md-primary-fg-color:        var(--ra-ink);
  --md-primary-fg-color--light: var(--ra-graphite);
  --md-primary-fg-color--dark:  var(--ra-ink);
  --md-accent-fg-color:         var(--ra-accent);
  --md-accent-fg-color--transparent: rgba(255, 91, 46, 0.12);
  --md-typeset-a-color:         var(--ra-accent);
  --md-default-bg-color:        var(--ra-paper);
}

[data-md-color-scheme="slate"] {
  --md-primary-fg-color:        var(--ra-paper);
  --md-primary-fg-color--light: var(--ra-mist);
  --md-primary-fg-color--dark:  var(--ra-ink);
  --md-accent-fg-color:         var(--ra-accent);
  --md-accent-fg-color--transparent: rgba(255, 91, 46, 0.18);
  --md-typeset-a-color:         var(--ra-accent);
}

/* Hero section */
.hero {
  text-align: center;
  padding: 2.5rem 1rem 3rem;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  color: var(--ra-ink);
}

[data-md-color-scheme="slate"] .hero h1 {
  color: var(--ra-paper);
}

/* The orange middle dot in "retrieval·agent" — match the logo. */
.hero h1 .dot {
  color: var(--ra-accent);
  display: inline-block;
  margin: 0 1px;
}

.hero p {
  font-size: 1.2rem;
  color: var(--ra-graphite);
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 1.5rem;
  line-height: 1.5;
}

[data-md-color-scheme="slate"] .hero p {
  color: var(--ra-mist);
}

.hero-buttons {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-buttons a {
  display: inline-block;
  padding: 0.65rem 1.6rem;
  border-radius: 4px;
  font-weight: 600;
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}

.hero-buttons a:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(11, 15, 20, 0.18);
}

.hero-buttons .btn-primary {
  background: var(--ra-accent);
  color: var(--ra-ink);
}

.hero-buttons .btn-primary:hover {
  background: var(--ra-accent-d);
}

.hero-buttons .btn-secondary {
  border: 1.5px solid var(--ra-ink);
  color: var(--ra-ink);
}

[data-md-color-scheme="slate"] .hero-buttons .btn-secondary {
  color: var(--ra-paper);
  border-color: var(--ra-paper);
}

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.feature-card {
  padding: 1.5rem;
  border-radius: 6px;
  border: 1px solid var(--ra-mist);
  background: var(--md-default-bg-color);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  border-color: var(--ra-accent);
  box-shadow: 0 2px 14px rgba(255, 91, 46, 0.10);
}

.feature-card h3 {
  margin-top: 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ra-ink);
  letter-spacing: -0.01em;
}

[data-md-color-scheme="slate"] .feature-card h3 {
  color: var(--ra-paper);
}

.feature-card h3::before {
  /* Tiny accent dot — echoes the logo's terminal "answer" node. */
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ra-accent);
  margin-right: 8px;
  vertical-align: middle;
}

.feature-card p {
  margin-bottom: 0;
  opacity: 0.85;
  font-size: 0.9rem;
  line-height: 1.55;
}

/* Code block tweaks */
.md-typeset code {
  font-size: 0.82rem;
}

/* Install command highlight */
.install-cmd {
  font-size: 1.1rem;
}

.install-cmd code {
  font-size: 1rem;
  padding: 0.5rem 1rem;
  background: var(--ra-ink);
  color: var(--ra-paper);
  border-radius: 3px;
}

.install-cmd code::before {
  content: "$ ";
  color: var(--ra-accent);
  font-weight: 600;
}

/* Admonition styling */
.md-typeset .admonition,
.md-typeset details {
  border-radius: 6px;
}

/* Tables */
.md-typeset table:not([class]) {
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(11, 15, 20, 0.08);
}

/* Nav logo — swap to light-on-dark mark when slate theme is active.
   prefers-color-scheme inside <img> SVGs doesn't respond to MkDocs's
   JS-toggled data-md-color-scheme attribute, so we override via CSS. */
[data-md-color-scheme="slate"] .md-header__button.md-logo img {
  content: url('logo-mark-dark.svg');
}