/* Slademy landing - brand locked 2026-11-11. Palette from brand/STYLE.md. */
@font-face {
  font-family: "Libre Caslon Text";
  src: url("/fonts/libre-caslon-text-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Libre Caslon Text";
  src: url("/fonts/libre-caslon-text-bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Libre Caslon Text";
  src: url("/fonts/libre-caslon-text-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: Inter;
  src: url("/fonts/inter-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: Inter;
  src: url("/fonts/inter-medium.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: Inter;
  src: url("/fonts/inter-semibold.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  --slate: #2F3A40;
  --chalk: #F7F5EF;
  --brick: #B5452F;
  --brass: #C9A24A;
  --teal: #1FB5A8;
  --muted: #4A555C;
  --card: #FFFcf7;
  --line: rgba(47, 58, 64, 0.14);
  --serif: "Libre Caslon Text", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --sans: Inter, "Segoe UI", system-ui, -apple-system, sans-serif;
  --wrap: 70rem;
  --gutter: clamp(1.25rem, 4vw, 2rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--chalk);
  color: var(--slate);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--brick); text-underline-offset: 0.18em; }
a:hover { color: var(--slate); }
:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  z-index: 20;
  background: var(--slate);
  color: var(--chalk);
  padding: 0.5rem 0.85rem;
  text-decoration: none;
  border-radius: 2px;
}
.skip:focus { top: 0.75rem; }

.wrap {
  width: min(var(--wrap), 100% - 2 * var(--gutter));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--chalk) 92%, white);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(1.2) blur(8px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  min-height: 4.25rem;
  flex-wrap: wrap;
  padding-block: 0.6rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--slate);
  text-decoration: none;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
}
.brand img { width: 2.35rem; height: auto; }
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.15rem;
}
.nav a {
  color: var(--slate);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}
.nav a:hover { color: var(--brick); }

/* Hero */
.hero {
  padding: clamp(2.5rem, 7vw, 5.5rem) 0 clamp(3rem, 8vw, 6rem);
}
.hero-lockup-img {
  width: min(46rem, 100%);
  height: auto;
  margin: 0;
}
.hero h1 {
  margin: 0;
  font-size: 0;
  line-height: 0;
}
.badge {
  display: inline-block;
  margin: 0 0 1.15rem;
  padding: 0.2rem 0.65rem;
  border: 1px solid color-mix(in srgb, var(--brass) 70%, var(--slate));
  color: var(--slate);
  background: color-mix(in srgb, var(--brass) 16%, var(--chalk));
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 999px;
}
.lede {
  max-width: 42rem;
  margin: 1.6rem 0 0;
  font-size: 1.125rem;
  color: var(--slate);
}
.hero-actions { margin-top: 1.75rem; display: flex; flex-wrap: wrap; gap: 0.85rem; align-items: center; }

.btn {
  display: inline-block;
  background: var(--brick);
  color: var(--chalk);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.8rem 1.25rem;
  border-radius: 4px;
  border: 2px solid var(--brick);
}
.btn:hover { background: color-mix(in srgb, var(--brick) 88%, black); color: var(--chalk); }
.btn-ghost {
  background: transparent;
  color: var(--slate);
  border-color: var(--slate);
}
.btn-ghost:hover { background: var(--slate); color: var(--chalk); }

/* Values */
.values {
  padding: 0 0 clamp(3rem, 7vw, 5rem);
}
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.value-grid li {
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--brass);
  padding: 1.2rem 1.15rem 1.3rem;
  border-radius: 0 0 6px 6px;
}
.value-grid h2, .value-grid h3 {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 0.45rem;
  line-height: 1.25;
}
.value-grid p { margin: 0; color: var(--muted); font-size: 0.98rem; }

/* Sections */
section { padding: clamp(3rem, 8vw, 5.5rem) 0; }
.band { background: color-mix(in srgb, var(--slate) 5%, var(--chalk)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sandbox { background: var(--slate); color: var(--chalk); }
.sandbox .muted, .sandbox p, .sandbox .section-intro { color: color-mix(in srgb, var(--chalk) 86%, var(--slate)); }
.cta-band { background: color-mix(in srgb, var(--brick) 9%, var(--chalk)); }

.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brick);
  margin: 0 0 0.5rem;
}
.sandbox .eyebrow { color: var(--teal); }
h2.section-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.8rem, 3.5vw, 2.45rem);
  line-height: 1.2;
  margin: 0 0 0.85rem;
  letter-spacing: -0.015em;
  max-width: 18em;
}
.section-intro {
  max-width: 42rem;
  margin: 0 0 2.25rem;
  color: var(--muted);
  font-size: 1.0625rem;
}

/* Lesson steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.15rem;
  margin: 0 0 1.5rem;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.steps li {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1.25rem 1.15rem 1.35rem;
  border-radius: 6px;
  counter-increment: step;
}
.steps li::before {
  content: counter(step);
  display: block;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--brass);
  line-height: 1;
  margin-bottom: 0.55rem;
}
.steps h3 {
  font-family: var(--serif);
  font-size: 1.15rem;
  margin: 0 0 0.4rem;
  line-height: 1.3;
}
.steps p { margin: 0; color: var(--muted); font-size: 0.98rem; }

.breakout {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem 1.25rem;
  align-items: start;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid var(--brick);
  padding: 1.25rem 1.35rem;
  border-radius: 6px;
}
.breakout-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brick);
  margin: 0.15rem 0 0;
  writing-mode: horizontal-tb;
}
.breakout h3 {
  font-family: var(--serif);
  font-size: 1.25rem;
  margin: 0 0 0.4rem;
}
.breakout p { margin: 0; color: var(--muted); }
.breakout .copy { grid-column: 2; }

/* Grade bands */
.grades {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.15rem;
  margin: 0 0 1.75rem;
}
.grade {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1.35rem 1.3rem 1.45rem;
  border-radius: 6px;
}
.grade .band-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brick);
  margin: 0 0 0.3rem;
}
.grade h3 {
  font-family: var(--serif);
  font-size: 1.3rem;
  margin: 0 0 0.45rem;
}
.grade p { margin: 0; color: var(--muted); }

.subjects {
  margin: 0;
  max-width: 48rem;
  color: var(--muted);
}

/* Sandbox cards */
.sims {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.15rem;
  margin: 0;
}
.sim {
  background: color-mix(in srgb, var(--chalk) 8%, #243033);
  border: 1px solid color-mix(in srgb, var(--teal) 45%, var(--slate));
  border-radius: 8px;
  padding: 1.4rem 1.3rem 1.5rem;
}
.sim .pillar {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin: 0 0 0.55rem;
}
.sim h3 {
  font-family: var(--serif);
  font-size: 1.35rem;
  margin: 0 0 0.5rem;
  color: var(--chalk);
  line-height: 1.25;
}
.sim p { margin: 0; }

/* Families */
.family-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.family-grid li {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1.3rem 1.25rem;
  border-radius: 6px;
}
.family-grid h3 {
  font-family: var(--serif);
  font-size: 1.25rem;
  margin: 0 0 0.4rem;
}
.family-grid p { margin: 0; color: var(--muted); }

/* CTA */
.cta-inner { max-width: 40rem; }
.cta-inner h2 { margin-bottom: 0.7rem; }
.cta-inner p { margin: 0 0 1.4rem; color: var(--muted); }

/* Footer */
.site-footer {
  background: var(--slate);
  color: color-mix(in srgb, var(--chalk) 88%, var(--slate));
  padding: 2.5rem 0 2.25rem;
  font-size: 0.92rem;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.65rem;
}
.footer-crest {
  width: 8.5rem;
  height: auto;
  margin: 0 0 0.5rem;
}
.privacy, .legal, .footer-email { margin: 0; color: color-mix(in srgb, var(--chalk) 75%, var(--slate)); }
.site-footer a { color: var(--chalk); }
.site-footer a:hover { color: var(--brass); }

@media (max-width: 900px) {
  .value-grid, .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .hero { text-align: center; }
  .lede, .hero-actions { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-lockup-img { margin-inline: auto; }
  .value-grid, .steps, .grades, .sims, .family-grid { grid-template-columns: 1fr; }
  .breakout { grid-template-columns: 1fr; }
  .nav { width: 100%; }
}