:root {
  --rf-bg: #0b0d10;
  --rf-bg-elev: #111722;
  --rf-bg-card: #141b27;
  --rf-line: #223146;
  --rf-line-soft: rgba(150, 180, 220, 0.15);
  --rf-text: #eaf0fa;
  --rf-text-muted: #9cadc5;
  --rf-blue: #007acc;
  --rf-blue-soft: #3ea7ff;
  --rf-amber: #ff9f43;
  --rf-amber-soft: #ffc279;
  --rf-green: #34d399;
  --rf-radius-lg: 18px;
  --rf-radius-md: 12px;
  --rf-shadow-glass: 0 18px 48px rgba(0, 10, 22, 0.42);
  --rf-shadow-blue: 0 0 0 1px rgba(0, 122, 204, 0.38), 0 16px 36px rgba(0, 122, 204, 0.24);
  --rf-shadow-amber: 0 0 0 1px rgba(255, 159, 67, 0.42), 0 16px 36px rgba(255, 159, 67, 0.2);
}

[data-md-color-scheme="slate"] {
  --md-default-bg-color: #090b0f;
  --md-default-bg-color--light: #111722;
  --md-default-bg-color--lighter: #141b27;
  --md-default-bg-color--lightest: #1a2432;
  --md-default-fg-color: rgba(234, 240, 250, 0.92);
  --md-default-fg-color--light: rgba(156, 173, 197, 0.9);
  --md-default-fg-color--lighter: rgba(156, 173, 197, 0.68);
  --md-default-fg-color--lightest: rgba(156, 173, 197, 0.28);
  --md-primary-fg-color: #0f1520;
  --md-primary-fg-color--light: #141b27;
  --md-primary-fg-color--dark: #090b0f;
  --md-accent-fg-color: var(--rf-blue-soft);
  --md-typeset-a-color: var(--rf-blue-soft);
  --md-code-bg-color: #101722;
  --md-code-fg-color: #ebf2ff;
}

body {
  background:
    radial-gradient(70rem 28rem at -10% -5%, rgba(0, 122, 204, 0.22), transparent 55%),
    radial-gradient(65rem 28rem at 110% -8%, rgba(255, 159, 67, 0.16), transparent 55%),
    linear-gradient(180deg, #0b0d10, #090b0f 45%, #080b0e);
  color: var(--rf-text);
}

.md-grid {
  max-width: min(1240px, calc(100vw - 2rem));
}

.md-header.rf-header {
  backdrop-filter: blur(14px);
  background: linear-gradient(180deg, rgba(15, 21, 32, 0.94), rgba(12, 16, 24, 0.76));
  border-bottom: 1px solid var(--rf-line-soft);
  box-shadow: none;
}

.rf-header__inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.rf-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--rf-text);
  font-weight: 700;
  white-space: nowrap;
}

.rf-brand:hover {
  color: var(--rf-text);
}

.rf-brand__dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--rf-green);
  box-shadow: 0 0 14px rgba(52, 211, 153, 0.45);
}

.rf-brand__text {
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.rf-header__spacer {
  flex: 1;
}

.rf-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.rf-header__link,
.rf-header__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.72rem 1.1rem;
  border-radius: var(--rf-radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.rf-header__link {
  color: var(--rf-text-muted);
  border: 1px solid rgba(150, 180, 220, 0.18);
  background: rgba(17, 23, 34, 0.72);
}

.rf-header__link:hover {
  color: var(--rf-text);
  transform: translateY(-1px);
}

.rf-header__cta {
  color: #f5fbff;
  border: 1px solid rgba(0, 122, 204, 0.68);
  background: linear-gradient(135deg, rgba(0, 122, 204, 0.95), rgba(5, 79, 130, 0.92));
  box-shadow: var(--rf-shadow-blue);
}

.rf-header__cta:hover {
  color: #f5fbff;
  transform: translateY(-1px);
}

.rf-search-button {
  color: var(--rf-text-muted);
}

.rf-search-button:hover {
  color: var(--rf-text);
}

.md-tabs {
  background: transparent;
  border-top: 1px solid rgba(150, 180, 220, 0.08);
}

.md-tabs__list {
  gap: 0.5rem;
}

.md-tabs__link {
  margin-top: 0;
  padding: 0.95rem 0.25rem 1rem;
  color: var(--rf-text-muted);
  font-weight: 500;
}

.md-tabs__link:hover,
.md-tabs__item--active .md-tabs__link {
  color: var(--rf-text);
}

.md-banner {
  background: linear-gradient(90deg, rgba(0, 122, 204, 0.18), rgba(255, 159, 67, 0.14));
  border-bottom: 1px solid rgba(255, 159, 67, 0.2);
  color: var(--rf-text-muted);
}

.md-banner a {
  color: var(--rf-text);
  font-weight: 600;
}

.md-main {
  background: transparent;
}

.md-main__inner {
  margin-top: 1.5rem;
  gap: 1.25rem;
}

.md-sidebar__scrollwrap,
.md-search__form {
  border-radius: var(--rf-radius-lg);
}

.md-sidebar__inner {
  padding-bottom: 1rem;
}

.md-nav--lifted > .md-nav__list > .md-nav__item > .md-nav__link,
.md-nav__title,
.md-nav__link {
  color: var(--rf-text-muted);
}

.md-nav__link:is(:hover, :focus),
.md-nav__link--active,
.md-nav__item .md-nav__link--active {
  color: var(--rf-text);
}

.md-nav__source,
.md-sidebar__scrollwrap,
.md-search__form,
.md-search-result {
  background: linear-gradient(145deg, rgba(20, 27, 39, 0.88), rgba(13, 17, 24, 0.88));
  border: 1px solid var(--rf-line-soft);
  box-shadow: var(--rf-shadow-glass);
}

.md-content__inner {
  margin: 0;
  padding: 1.6rem 1.8rem 2.2rem;
  border-radius: 24px;
  border: 1px solid var(--rf-line-soft);
  background: linear-gradient(145deg, rgba(20, 27, 39, 0.92), rgba(13, 17, 24, 0.9));
  box-shadow: var(--rf-shadow-glass);
}

.md-content__inner::before {
  display: none;
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4 {
  color: var(--rf-text);
  letter-spacing: -0.02em;
}

.md-typeset h1 {
  font-size: clamp(2.1rem, 4vw, 3.1rem);
}

.md-typeset p,
.md-typeset li,
.md-typeset td,
.md-typeset label {
  color: var(--rf-text-muted);
}

.md-typeset strong,
.md-typeset code {
  color: var(--rf-text);
}

.md-typeset a:hover {
  color: var(--rf-blue);
}

.md-typeset .md-button {
  border-radius: 999px;
  font-weight: 600;
}

.md-typeset .md-button--primary {
  background-color: var(--rf-blue);
  border-color: var(--rf-blue);
}

.md-typeset .md-button:not(.md-button--primary) {
  color: var(--rf-amber-soft);
  border-color: rgba(255, 159, 67, 0.52);
  background: linear-gradient(135deg, rgba(255, 159, 67, 0.12), rgba(255, 159, 67, 0.06));
}

.md-typeset pre > code,
.md-typeset .highlight > pre,
.md-typeset table:not([class]) {
  border-radius: var(--rf-radius-md);
}

.md-typeset .highlight > pre,
.md-typeset pre > code {
  background: #101722;
  border: 1px solid rgba(150, 180, 220, 0.14);
}

.md-typeset table:not([class]) {
  overflow: hidden;
  border: 1px solid rgba(150, 180, 220, 0.14);
}

.md-typeset table:not([class]) th {
  background: rgba(0, 122, 204, 0.15);
  color: var(--rf-text);
}

.md-typeset table:not([class]) td {
  background: rgba(17, 23, 34, 0.74);
}

.md-typeset .admonition,
.md-typeset details {
  border-radius: var(--rf-radius-md);
  background: rgba(17, 23, 34, 0.74);
  border: 1px solid rgba(150, 180, 220, 0.14);
}

.md-typeset hr {
  border-bottom-color: var(--rf-line);
}

.rf-home {
  display: grid;
  gap: 2.5rem;
  padding-bottom: 1rem;
}

.md-content:has(.rf-home) .md-content__inner {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0.5rem 0;
  border-radius: 0;
}

.rf-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: center;
  padding: 2rem 0 1rem;
}

.rf-hero__title {
  font-size: clamp(2rem, 4vw, 2.8rem) !important;
  line-height: 1.15;
  margin: 0 0 1rem !important;
}

.rf-eyebrow {
  display: inline-flex;
  align-items: center;
  margin: 0 0 0.5rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid rgba(0, 122, 204, 0.45);
  border-radius: 999px;
  color: var(--rf-blue-soft);
  background: rgba(0, 122, 204, 0.1);
  font-family: var(--md-code-font);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.rf-lead {
  max-width: 56ch;
  font-size: 1.08rem;
  line-height: 1.6;
  margin: 0 0 1.25rem;
}

.rf-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin: 0;
}

.rf-home-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.6rem;
}

.rf-home-list li {
  position: relative;
  padding-left: 1.15rem;
}

.rf-home-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--rf-blue-soft);
}

.rf-screen-card,
.rf-card,
.rf-step-card {
  border-radius: var(--rf-radius-lg);
  border: 1px solid var(--rf-line-soft);
  background: linear-gradient(145deg, rgba(20, 27, 39, 0.92), rgba(13, 17, 24, 0.9));
  box-shadow: var(--rf-shadow-glass);
  transition: transform 250ms ease, box-shadow 250ms ease, border-color 250ms ease;
}

.rf-screen-card {
  margin: 0;
  overflow: hidden;
}

.rf-screen-card img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--rf-radius-lg);
}

.rf-screen-card figcaption {
  display: grid;
  gap: 0.25rem;
  padding: 0.95rem 1rem 1.05rem;
}

.rf-screen-card strong {
  font-size: 1rem;
  color: var(--rf-text);
}

.rf-screen-card span {
  color: var(--rf-text-muted);
  font-size: 0.92rem;
}

.rf-section {
  display: grid;
  gap: 1.4rem;
}

.rf-section__head {
  max-width: 52rem;
}

.rf-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.rf-card,
.rf-step-card {
  display: block;
  padding: 1.25rem;
  color: inherit;
}

.rf-card:hover,
.rf-step-card:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 122, 204, 0.45);
  box-shadow: var(--rf-shadow-blue);
}

.rf-screen-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--rf-shadow-blue);
}

.rf-card h3,
.rf-step-card h3 {
  margin: 0 0 0.45rem;
  font-size: 1.18rem;
}

.rf-card p,
.rf-step-card p {
  margin: 0;
}

.rf-card__pill {
  display: inline-flex;
  margin-bottom: 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 159, 67, 0.58);
  color: var(--rf-amber-soft);
  background: rgba(255, 159, 67, 0.12);
  padding: 0.24rem 0.56rem;
  font-family: var(--md-code-font);
  font-size: 0.72rem;
}

.rf-step-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.rf-step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 122, 204, 0.55);
  background: linear-gradient(135deg, rgba(0, 122, 204, 0.25), rgba(0, 122, 204, 0.08));
  color: var(--rf-blue-soft);
  font-family: var(--md-code-font);
  font-size: 0.9rem;
  font-weight: 700;
}

.rf-footer {
  margin-top: 2rem;
  background: transparent;
}

@media (max-width: 1100px) {
  .rf-card-grid,
  .rf-step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .rf-header__link {
    display: none;
  }

  .rf-hero {
    grid-template-columns: 1fr;
  }
}

/* ───── PREV / NEXT PAGINATION NAV ───── */

.rf-footer .md-footer__inner {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--rf-line-soft);
}

.rf-footer .md-footer__link {
  color: var(--rf-text-muted);
  transition: color 180ms ease, transform 180ms ease;
}

.rf-footer .md-footer__link:hover {
  color: var(--rf-text);
  transform: translateX(0);
}

.rf-footer .md-footer__link--prev:hover {
  transform: translateX(-2px);
}

.rf-footer .md-footer__link--next:hover {
  transform: translateX(2px);
}

.rf-footer .md-footer__direction {
  color: var(--rf-text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.rf-footer .md-footer__title {
  color: var(--rf-text-muted);
}

.rf-footer .md-footer__link:hover .md-footer__title {
  color: var(--rf-text);
}

.rf-footer .md-footer__button {
  color: var(--rf-text-muted);
}

.rf-footer .md-footer__link:hover .md-footer__button {
  color: var(--rf-blue-soft);
}

/* ───── FOOTER META AREA ───── */

.rf-footer__meta {
  padding: 2.2rem 0 1.7rem;
}

.rf-footer__inner {
  border-top: 1px solid rgba(150, 180, 220, 0.14);
  padding-top: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.rf-footer__brand {
  margin: 0;
  color: var(--rf-text);
  font-size: 1.08rem;
  font-weight: 700;
}

.rf-footer__copy {
  margin: 0.25rem 0 0;
  color: var(--rf-text-muted);
  font-size: 0.9rem;
}

.rf-footer__links {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.rf-footer__links a {
  color: var(--rf-text-muted);
  font-size: 0.92rem;
  transition: color 180ms ease;
}

.rf-footer__links a:hover {
  color: var(--rf-blue-soft);
}

/* ───── CARD INNER TOP-EDGE GLOW ───── */

.rf-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.5rem;
  right: 1.5rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(62, 167, 255, 0.28), transparent);
  opacity: 0;
  transition: opacity 250ms ease;
}

.rf-card {
  position: relative;
  overflow: hidden;
}

.rf-card:hover::before {
  opacity: 1;
}

/* ───── CARD PILL HOVER LIFT ───── */

.rf-card__pill {
  transition: background 180ms ease, border-color 180ms ease;
}

.rf-card:hover .rf-card__pill {
  border-color: rgba(255, 159, 67, 0.75);
  background: rgba(255, 159, 67, 0.18);
}

/* ───── CARD DESCRIPTION TEXT LIFT ON HOVER ───── */

.rf-card:hover p {
  color: var(--rf-text);
}

.rf-card p {
  transition: color 250ms ease;
}

/* ───── RESPONSIVE ───── */

@media (max-width: 720px) {
  .md-grid {
    max-width: calc(100vw - 1rem);
  }

  .md-content__inner {
    padding: 1.15rem 1rem 1.5rem;
    border-radius: 18px;
  }

  .rf-brand__text {
    font-size: 1.15rem;
  }

  .rf-header__cta {
    display: none;
  }

  .rf-card-grid,
  .rf-step-grid {
    grid-template-columns: 1fr;
  }

  .rf-footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .rf-footer__links {
    gap: 0.75rem;
  }
}