.edu-support, .support-banner { --line: var(--border-medium); --paper: var(--bg-secondary); --cream: var(--bg-tertiary); --muted: var(--text-secondary); --radius: 12px; }
.support-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 1.5rem;
  align-items: start;
}
.support-grid > * {
  min-width: 0;
  padding: clamp(1.2rem, 3vw, 2rem);
}
.support-mark {
  width: 72px;
  height: 72px;
  margin-bottom: 1rem;
}
.support-promise {
  background: var(--cream);
}
.support-donation .notice p {
  margin-bottom: 0;
}
.support-donation .source-meta {
  overflow-wrap: anywhere;
}
.support-ways {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
/* Three columns are narrow on tablets; a long link wraps instead of widening the page. */
.support-ways .text-link {
  white-space: normal;
}
.support-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  padding: clamp(1.2rem, 3vw, 2rem);
  margin: 1.5rem 0;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.support-banner > div {
  flex: 1 1 20rem;
}
.support-banner h2 {
  font-size: 1.5rem;
  margin-bottom: 0.4rem;
}
.support-banner p {
  max-width: 60ch;
  margin: 0;
  color: var(--muted);
}
@media (max-width: 700px) {
  .support-grid,
  .support-ways {
    grid-template-columns: 1fr;
  }
}

.support-channels {
  display: grid;
  gap: 1rem;
  margin: 1rem 0;
}
.support-channel {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}
.support-channel h4 {
  margin: 0 0 0.8rem;
  font-size: 1rem;
}
.support-channel .btn {
  white-space: normal;
  text-align: center;
}
.support-channel .source-meta {
  margin-bottom: 0;
}
.support-help summary {
  cursor: pointer;
  font-weight: 700;
}

.edu-support { max-width: 1120px; margin: 0 auto; padding: clamp(24px, 4vw, 56px) 24px; }
.edu-support-head { max-width: 760px; margin-bottom: 32px; }
.edu-support h1 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.18; margin: 14px 0 20px; }
.edu-support h2 { font-size: 1.4rem; line-height: 1.3; margin-bottom: 14px; }
.edu-support h3 { font-size: 1.1rem; margin: 22px 0 12px; }
.edu-support p { line-height: 1.8; margin: 12px 0; color: var(--muted); }
.edu-support .card { display: block; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); padding: clamp(20px, 3vw, 32px); }
.edu-support .support-promise { background: var(--cream); }
.edu-support .section { margin-top: 40px; padding: 0; }
.edu-support .support-ways { display: grid; gap: 20px; }
.edu-support .btn, .support-banner .btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 12px 18px; border: 1px solid currentColor; border-radius: 10px; font-weight: 700; font-size: .9rem; white-space: normal; }
.edu-support .text-link { text-decoration: underline; text-underline-offset: 4px; }
.edu-support a:focus-visible, .edu-support summary:focus-visible, .support-banner a:focus-visible { outline: 3px solid currentColor; outline-offset: 4px; }
.edu-support .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.edu-support .small { font-size: .875rem; }
.edu-support .source-meta { font-size: .8rem; }
.edu-support .support-ways .card h3 { margin-top: 0; }
@media (max-width: 480px) { .edu-support { padding-inline: 16px; } .edu-support .support-channel .btn { width: 100%; } }