/* Landing-page styles for docs/index.md.
   Scoped under .sf-* classes so other pages are unaffected. Works in both
   the `default` (light) and `slate` (dark) Material palettes via the
   theme's own CSS variables. */

/* ---- hero -------------------------------------------------------------- */

.sf-hero {
  text-align: center;
  padding: 2.6rem 1rem 1.4rem;
  margin: -0.6rem -0.6rem 1.6rem;
  border-radius: 0 0 1.2rem 1.2rem;
}

[data-md-color-scheme="default"] .sf-hero {
  background: radial-gradient(ellipse 90% 100% at 50% 0%, rgba(92, 107, 192, 0.12), transparent 65%);
}

[data-md-color-scheme="slate"] .sf-hero {
  background: radial-gradient(ellipse 90% 100% at 50% 0%, rgba(129, 140, 248, 0.18), transparent 65%);
}

.sf-hero-logo {
  width: 4.2rem;
  height: 4.2rem;
  margin-bottom: 0.4rem;
}

.sf-hero h1 {
  margin: 0 0 0.5rem;
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, #5c6bc0 0%, #7e57c2 55%, #26a69a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.sf-hero .headerlink {
  display: none;
}

.sf-tagline {
  font-size: 1.12rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
  color: var(--md-default-fg-color);
}

.sf-sub {
  font-size: 0.92rem;
  color: var(--md-default-fg-color--light);
  margin: 0 auto 1.1rem;
  max-width: 38rem;
}

.sf-cta {
  display: flex;
  gap: 0.55rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.sf-cta .md-button {
  border-radius: 2rem;
  padding: 0.42rem 1.15rem;
}

.sf-badges {
  display: flex;
  gap: 0.3rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 0;
}

.sf-badges img {
  height: 1.05rem;
  display: block;
}

/* ---- TB 2.1 score strip ------------------------------------------------ */

.sf-score-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  max-width: 46rem;
  margin: 0 auto 1.8rem;
}

.sf-score {
  border: 0.05rem solid var(--md-default-fg-color--lightest);
  border-radius: 0.55rem;
  padding: 0.85rem 0.7rem 0.75rem;
  text-align: center;
  background: var(--md-default-bg-color);
}

.sf-score--ours {
  border-color: var(--md-accent-fg-color);
  box-shadow: 0 0.35rem 1rem rgba(92, 107, 192, 0.12);
}

.sf-score-value {
  display: block;
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  white-space: nowrap;
  color: var(--md-default-fg-color);
}

.sf-score--ours .sf-score-value {
  background: linear-gradient(120deg, #5c6bc0 0%, #7e57c2 55%, #26a69a 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.sf-score-label {
  display: block;
  margin-top: 0.28rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--md-default-fg-color);
}

.sf-score-meta {
  display: block;
  margin-top: 0.12rem;
  font-size: 0.68rem;
  color: var(--md-default-fg-color--light);
}

.sf-bench {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 42rem;
  margin: 0 auto 1.4rem;
}

.sf-bench--wide {
  max-width: 58rem;
}

.sf-bench-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 64rem) {
  .sf-bench-duo {
    grid-template-columns: 1fr;
  }
}

.sf-scatter {
  display: block;
  width: 100%;
  height: auto;
  padding: 0.1rem 0.5rem 0;
}

.sf-scatter .grid {
  stroke: var(--md-default-fg-color--lightest);
  stroke-width: 0.5;
}

.sf-scatter .axis {
  stroke: var(--md-default-fg-color--light);
  stroke-width: 0.8;
}

.sf-scatter .na-axis {
  stroke: var(--md-default-fg-color--light);
  stroke-width: 0.8;
  stroke-dasharray: 4 3;
}

.sf-scatter .tick {
  fill: var(--md-default-fg-color--light);
  font-size: 11px;
}

.sf-scatter .axisTitle {
  fill: var(--md-default-fg-color--light);
  font-size: 12px;
  font-weight: 600;
}

.sf-scatter .pt {
  fill: rgba(127, 127, 140, 0.3);
  stroke: var(--md-default-fg-color--light);
  stroke-width: 1;
}

.sf-scatter .pt--ours {
  fill: rgba(92, 107, 192, 0.72);
  stroke: #5c6bc0;
  stroke-width: 1.4;
}

[data-md-color-scheme="slate"] .sf-scatter .pt--ours {
  fill: rgba(129, 140, 248, 0.72);
  stroke: #818cf8;
}

.sf-scatter .lbl {
  fill: var(--md-default-fg-color);
  font-size: 11px;
  font-weight: 700;
}

.sf-scatter .lbl--ours {
  fill: #5c6bc0;
}

[data-md-color-scheme="slate"] .sf-scatter .lbl--ours {
  fill: #818cf8;
}

.sf-scatter .sub {
  fill: var(--md-default-fg-color--light);
  font-size: 10px;
}

.sf-scatter .pt--ref {
  fill: var(--md-default-bg-color);
  stroke: var(--md-default-fg-color);
  stroke-width: 1.3;
}

.sf-scatter .legend {
  fill: var(--md-default-fg-color--light);
  font-size: 11px;
}

.sf-scatter .pt--steer,
.sf-scatter .pt--ours {
  fill: rgba(92, 107, 192, 0.72);
  stroke: #5c6bc0;
  stroke-width: 1.4;
}

.sf-scatter .pt--pi {
  fill: rgba(14, 116, 144, 0.55);
  stroke: #0e7490;
  stroke-width: 1.1;
}

.sf-scatter .pt--cc {
  fill: rgba(194, 65, 12, 0.5);
  stroke: #c2410c;
  stroke-width: 1.1;
}

.sf-scatter .pt--codex {
  fill: rgba(127, 127, 140, 0.35);
  stroke: var(--md-default-fg-color--light);
  stroke-width: 1;
}

.sf-scatter .pt--dsh {
  fill: rgba(21, 128, 61, 0.5);
  stroke: #15803d;
  stroke-width: 1.1;
}

[data-md-color-scheme="slate"] .sf-scatter .pt--steer,
[data-md-color-scheme="slate"] .sf-scatter .pt--ours {
  fill: rgba(129, 140, 248, 0.72);
  stroke: #818cf8;
}

[data-md-color-scheme="slate"] .sf-scatter .pt--pi {
  fill: rgba(34, 211, 238, 0.45);
  stroke: #22d3ee;
}

[data-md-color-scheme="slate"] .sf-scatter .pt--cc {
  fill: rgba(251, 146, 60, 0.5);
  stroke: #fb923c;
}

[data-md-color-scheme="slate"] .sf-scatter .pt--dsh {
  fill: rgba(74, 222, 128, 0.5);
  stroke: #4ade80;
}

.sf-bars {
  display: block;
  width: 100%;
  height: auto;
  padding: 0.15rem 0.6rem 0.2rem;
}

.sf-bars .grid {
  stroke: var(--md-default-fg-color--lightest);
  stroke-width: 0.5;
}

.sf-bars .axis {
  stroke: var(--md-default-fg-color--light);
  stroke-width: 0.8;
}

.sf-bars .tick {
  fill: var(--md-default-fg-color--light);
  font-size: 9px;
}

.sf-bars .axisTitle {
  fill: var(--md-default-fg-color--light);
  font-size: 9.5px;
  font-weight: 600;
}

.sf-bars .barVal {
  fill: var(--md-default-fg-color);
  font-size: 8px;
  font-weight: 650;
}

.sf-bars .bar--steer {
  fill: #5c6bc0;
}

.sf-bars .bar--pi {
  fill: #0e7490;
}

.sf-bars .bar--cc {
  fill: #c2410c;
}

.sf-bars .bar--codex {
  fill: rgba(127, 127, 140, 0.55);
}

.sf-bars .bar--dsh {
  fill: #15803d;
}

[data-md-color-scheme="slate"] .sf-bars .bar--steer {
  fill: #818cf8;
}

[data-md-color-scheme="slate"] .sf-bars .bar--pi {
  fill: #22d3ee;
}

[data-md-color-scheme="slate"] .sf-bars .bar--cc {
  fill: #fb923c;
}

[data-md-color-scheme="slate"] .sf-bars .bar--codex {
  fill: rgba(161, 161, 170, 0.7);
}

[data-md-color-scheme="slate"] .sf-bars .bar--dsh {
  fill: #4ade80;
}

.sf-bench-group {
  border: 0.05rem solid var(--md-default-fg-color--lightest);
  border-radius: 0.7rem;
  overflow: hidden;
  background: var(--md-default-bg-color);
}

.sf-bench-group--focus {
  border-color: rgba(92, 107, 192, 0.4);
  box-shadow: 0 0.4rem 1.25rem rgba(92, 107, 192, 0.12);
}

[data-md-color-scheme="slate"] .sf-bench-group--focus {
  border-color: rgba(129, 140, 248, 0.45);
  box-shadow: 0 0.4rem 1.25rem rgba(129, 140, 248, 0.12);
}

.sf-bench-kicker {
  padding: 0.7rem 1rem 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--md-default-fg-color);
}

.md-typeset .sf-bench-blurb {
  margin: 0.18rem 0 0.55rem;
  padding: 0 1rem;
  font-size: 0.72rem;
  line-height: 1.45;
  color: var(--md-default-fg-color--light);
}

.sf-bench-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "who pct"
    "bar bar"
    "meta meta";
  gap: 0.12rem 0.75rem;
  padding: 0.55rem 1rem 0.65rem;
  border-top: 0.05rem solid var(--md-default-fg-color--lightest);
}

.sf-bench-row--ours {
  background: linear-gradient(90deg, rgba(92, 107, 192, 0.16), rgba(38, 166, 154, 0.07));
  border-left: 0.22rem solid #5c6bc0;
  padding-left: calc(1rem - 0.22rem);
}

[data-md-color-scheme="slate"] .sf-bench-row--ours {
  background: linear-gradient(90deg, rgba(129, 140, 248, 0.2), rgba(38, 166, 154, 0.08));
  border-left-color: #818cf8;
}

.md-typeset .sf-bench-foot {
  margin: 0;
  padding: 0.55rem 1rem 0.7rem;
  border-top: 0.05rem dashed var(--md-default-fg-color--lightest);
  font-size: 0.68rem;
  line-height: 1.45;
  color: var(--md-default-fg-color--light);
}

.sf-bench-who {
  grid-area: who;
  min-width: 0;
}

.sf-bench-agent {
  display: block;
  font-size: 0.84rem;
  font-weight: 650;
  line-height: 1.3;
  color: var(--md-default-fg-color);
}

.sf-bench-row--ours .sf-bench-agent {
  font-size: 0.95rem;
  font-weight: 750;
}

.sf-bench-model {
  display: block;
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--md-default-fg-color--light);
}

.sf-bench-badge {
  display: inline-block;
  margin-left: 0.3rem;
  padding: 0.05rem 0.35rem;
  border-radius: 0.25rem;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  vertical-align: 0.12rem;
  color: #5c6bc0;
  background: rgba(92, 107, 192, 0.14);
}

[data-md-color-scheme="slate"] .sf-bench-badge {
  color: #c7d2fe;
  background: rgba(129, 140, 248, 0.22);
}

.sf-bench-pct {
  grid-area: pct;
  font-variant-numeric: tabular-nums;
  font-size: 0.92rem;
  font-weight: 750;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--md-default-fg-color);
}

.sf-bench-row--ours .sf-bench-pct {
  font-size: 1.35rem;
  font-weight: 800;
  color: #5c6bc0;
}

[data-md-color-scheme="slate"] .sf-bench-row--ours .sf-bench-pct {
  color: #c4b5fd;
}

.md-typeset .sf-bench-track {
  grid-area: bar;
  display: block;
  height: 0.38rem;
  margin: 0.28rem 0 0.12rem;
  border-radius: 99px;
  background: var(--md-default-fg-color--lightest);
  overflow: hidden;
}

.md-typeset .sf-bench-fill {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: var(--md-default-fg-color--light);
}

.sf-bench-row--ours .sf-bench-fill {
  background: linear-gradient(90deg, #5c6bc0, #7e57c2 55%, #26a69a);
}

.sf-bench-group--focus .sf-bench-row:not(.sf-bench-row--ours) .sf-bench-fill {
  background: rgba(92, 107, 192, 0.45);
}

.sf-bench-meta {
  grid-area: meta;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.15rem 0.75rem;
  font-size: 0.66rem;
  line-height: 1.4;
  color: var(--md-default-fg-color--light);
}

.sf-bench-delta {
  font-weight: 700;
  color: #2e7d32;
}

[data-md-color-scheme="slate"] .sf-bench-delta {
  color: #86efac;
}

/* ---- feature grid ------------------------------------------------------- */

.sf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 0.7rem;
  margin: 1.1rem 0 1.6rem;
}

.sf-card {
  border: 0.05rem solid var(--md-default-fg-color--lightest);
  border-radius: 0.55rem;
  padding: 0.85rem 1rem;
  background: var(--md-default-bg-color);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.sf-card:hover {
  transform: translateY(-2px);
  border-color: var(--md-accent-fg-color);
  box-shadow: 0 0.35rem 1rem rgba(0, 0, 0, 0.1);
}

.sf-card h3 {
  margin: 0 0 0.3rem;
  font-size: 0.88rem;
  font-weight: 700;
}

.sf-card h3 code {
  font-size: 0.8rem;
}

.sf-card p {
  margin: 0;
  font-size: 0.76rem;
  line-height: 1.55;
  color: var(--md-default-fg-color--light);
}

/* ---- section headings ---------------------------------------------------- */

.sf-section {
  text-align: center;
  margin: 2.2rem 0 0.4rem;
}

.sf-section + p.sf-lede,
.sf-bench + p.sf-lede {
  text-align: center;
  color: var(--md-default-fg-color--light);
  font-size: 0.85rem;
  max-width: 36rem;
  margin: 0 auto 1rem;
}

/* ---- quickstart tabs ------------------------------------------------------ */

.sf-tabs {
  max-width: 44rem;
  margin: 0 auto 1.4rem;
}

/* ---- footer link row ------------------------------------------------------- */

.sf-links {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin: 1.2rem 0 0.6rem;
}

.sf-links .md-button {
  border-radius: 2rem;
}

@media screen and (max-width: 44.9375em) {
  .sf-hero h1 {
    font-size: 1.9rem;
  }

  .sf-score-strip {
    grid-template-columns: 1fr;
  }

  .sf-score-value {
    font-size: 1.55rem;
  }

  .sf-bench-row--ours .sf-bench-pct {
    font-size: 1.15rem;
  }
}