/* ZAR Learn Home — scoped landing-page styles */

.zar-learn-home {
  --zlh-border: color-mix(in srgb, var(--zar-border, #cfd7e6) 78%, transparent);
  --zlh-surface: var(--zar-surface, #fff);
  --zlh-soft: color-mix(in srgb, var(--zar-accent, #5367ff) 5%, #fff);
  --zlh-text: var(--zar-text, #172033);
  --zlh-muted: var(--zar-text-muted, #5d687a);
  --zlh-accent: var(--zar-accent, #5367ff);
  --zlh-link: var(--zar-link, #0b5ea8);
  width: min(100%, 980px);
  margin-inline: auto;
  padding: clamp(1rem, 2vw, 1.75rem) clamp(1rem, 2.4vw, 2rem) 4rem;
  color: var(--zlh-text);
}

.zar-learn-home *, .zar-learn-home *::before, .zar-learn-home *::after { box-sizing: border-box; }

.zar-learn-home__hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(1.25rem, 4vw, 3.5rem);
  align-items: center;
  padding: clamp(1.4rem, 3vw, 2.5rem);
  border: 1px solid var(--zlh-border);
  border-radius: 14px;
  background: linear-gradient(110deg, var(--zlh-surface) 0 66%, var(--zlh-soft) 100%);
}

.zar-learn-home__eyebrow, .zar-learn-home__section-label {
  margin: 0 0 .45rem;
  color: var(--zlh-accent);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .075em;
  text-transform: uppercase;
}

.zar-learn-home__hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(1.75rem, 3.1vw, 2.7rem);
  line-height: 1.12;
  letter-spacing: -.025em;
}

.zar-learn-home__intro {
  max-width: 720px;
  margin: 1rem 0 0;
  color: var(--zlh-muted);
  font-size: clamp(1rem, 1.25vw, 1.08rem);
  line-height: 1.65;
}

.zar-learn-home__mark {
  position: relative;
  width: clamp(88px, 10vw, 128px);
  aspect-ratio: 1;
  border: 1px solid var(--zlh-border);
  border-radius: 28px;
  background: var(--zlh-surface);
}

.zar-learn-home__mark::before,
.zar-learn-home__mark::after,
.zar-learn-home__mark-orbit,
.zar-learn-home__mark-core { position: absolute; content: ""; }

.zar-learn-home__mark::before {
  inset: 21%;
  border: 2px solid color-mix(in srgb, var(--zlh-accent) 55%, transparent);
  border-radius: 50%;
}

.zar-learn-home__mark::after {
  width: 48%; height: 2px; top: 50%; left: 26%;
  background: color-mix(in srgb, var(--zlh-accent) 40%, transparent);
  transform: rotate(-28deg);
}

.zar-learn-home__mark-orbit {
  inset: 34% 10%;
  border-block: 2px solid color-mix(in srgb, var(--zlh-accent) 45%, transparent);
  border-radius: 50%;
  transform: rotate(28deg);
}

.zar-learn-home__mark-core {
  width: 18%; aspect-ratio: 1; top: 41%; left: 41%;
  border-radius: 50%;
  background: var(--zlh-accent);
}

.zar-learn-home__section { margin-top: clamp(2rem, 4vw, 3.5rem); }
.zar-learn-home__section-heading { max-width: 760px; margin-bottom: 1.25rem; }
.zar-learn-home__section-heading h2 { margin: 0; font-size: clamp(1.35rem, 2vw, 1.8rem); line-height: 1.25; }
.zar-learn-home__section-heading p:last-child { margin: .65rem 0 0; color: var(--zlh-muted); line-height: 1.6; }

.zar-learn-home__grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1rem;
}

.zar-learn-home__card {
  grid-column: span 2;
  min-width: 0;
  padding: 1.25rem;
  border: 1px solid var(--zlh-border);
  border-radius: 10px;
  background: var(--zlh-surface);
}

.zar-learn-home__card:nth-child(4),
.zar-learn-home__card:nth-child(5) { grid-column: span 3; }

.zar-learn-home__card:hover {
  border-color: color-mix(in srgb, var(--zlh-accent) 40%, var(--zlh-border));
  background: color-mix(in srgb, var(--zlh-accent) 2.5%, var(--zlh-surface));
}

.zar-learn-home__card-icon {
  display: inline-grid;
  place-items: center;
  min-width: 2rem;
  min-height: 2rem;
  margin-bottom: 1rem;
  border: 1px solid color-mix(in srgb, var(--zlh-accent) 24%, var(--zlh-border));
  border-radius: 8px;
  background: var(--zlh-soft);
  color: var(--zlh-accent);
  font-size: .75rem;
  font-weight: 800;
}

.zar-learn-home__card-title-row {
  display: flex;
  gap: .75rem;
  align-items: center;
  justify-content: space-between;
}

.zar-learn-home__card h3 { margin: 0; font-size: 1.05rem; }
.zar-learn-home__card p { margin: .7rem 0 1rem; color: var(--zlh-muted); line-height: 1.55; }

.zar-learn-home__card a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--zlh-link);
  font-weight: 650;
  text-underline-offset: .2em;
}

.zar-learn-home__card a::after { content: "→"; margin-left: .45rem; }
.zar-learn-home__card a:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--zlh-accent) 34%, transparent);
  outline-offset: 3px;
  border-radius: 4px;
}

.zar-learn-home__card--private {
  background: color-mix(in srgb, #53657d 3%, var(--zlh-surface));
}

.zar-learn-home__access {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 1.6rem;
  padding: .15rem .5rem;
  border: 1px solid var(--zlh-border);
  border-radius: 999px;
  color: #53657d;
  font-size: .7rem;
  font-weight: 700;
}

.zar-learn-home__access::before { content: "●"; margin-right: .35rem; font-size: .55rem; }

.zar-learn-home__principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-block: 1px solid var(--zlh-border);
}

.zar-learn-home__principles > div {
  display: grid;
  gap: .4rem;
  align-content: start;
  padding: 1.25rem;
}

.zar-learn-home__principles > div + div { border-left: 1px solid var(--zlh-border); }
.zar-learn-home__principles span { color: var(--zlh-muted); font-size: .9rem; line-height: 1.55; }

.zar-learn-home__notice {
  margin-top: 2.25rem;
  padding: 1rem 1.15rem;
  border-left: 3px solid color-mix(in srgb, var(--zlh-accent) 55%, transparent);
  background: var(--zlh-soft);
}

.zar-learn-home__notice strong { display: block; margin-bottom: .3rem; }
.zar-learn-home__notice p { margin: 0; color: var(--zlh-muted); line-height: 1.55; }

@media (max-width: 900px) {
  .zar-learn-home__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .zar-learn-home__card,
  .zar-learn-home__card:nth-child(4),
  .zar-learn-home__card:nth-child(5) { grid-column: auto; }
  .zar-learn-home__card:last-child { grid-column: 1 / -1; }

  .zar-learn-home__principles { grid-template-columns: 1fr; }
  .zar-learn-home__principles > div + div {
    border-left: 0;
    border-top: 1px solid var(--zlh-border);
  }
}

@media (max-width: 640px) {
  .zar-learn-home { padding: 1rem 1rem 5.5rem; }
  .zar-learn-home__hero { grid-template-columns: 1fr; padding: 1.2rem; }
  .zar-learn-home__mark { display: none; }
  .zar-learn-home__grid { grid-template-columns: 1fr; }
  .zar-learn-home__card,
  .zar-learn-home__card:last-child { grid-column: auto; }
  .zar-learn-home__card { padding: 1.1rem; }
  .zar-learn-home__card-title-row { align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  .zar-learn-home *, .zar-learn-home *::before, .zar-learn-home *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}