:root {
  --navy: #1e3f7c;
  --ink: #2e3238;
  --muted: #6b7280;
  --line: #d9dfea;
  --panel: #f3f5f9;
  --bg: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 18px;
  line-height: 1.55;
}

a {
  color: var(--navy);
}

.page {
  max-width: 980px;
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.logo {
  display: block;
  width: 132px;
  height: auto;
}

h1 {
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.12;
  margin: 48px 0 12px;
  letter-spacing: -0.01em;
}

.lede {
  font-size: 21px;
  color: var(--ink);
  max-width: 640px;
  margin: 0 0 40px;
}

.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 16px;
}

.step {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 16px;
}

.num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-weight: 700;
  display: grid;
  place-items: center;
  font-size: 20px;
}

.step h2 {
  font-size: 22px;
  margin: 6px 0 6px;
}

.step p {
  margin: 0 0 12px;
}

.step p:last-child {
  margin-bottom: 0;
}

.button {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 12px 20px;
  border-radius: 10px;
  border: 0;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.button:focus-visible,
.copy:focus-visible {
  outline: 3px solid #96bee6;
  outline-offset: 2px;
}

.prompt {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.prompt code {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 18px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.copy {
  background: #fff;
  color: var(--navy);
  border: 1px solid var(--navy);
  border-radius: 10px;
  padding: 10px 16px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.note {
  color: var(--muted);
  font-size: 16px;
}

.stuck {
  margin-top: 24px;
  background: var(--panel);
  border-radius: 14px;
  padding: 20px 24px;
}

.stuck h2 {
  font-size: 18px;
  margin: 0 0 6px;
}

.stuck p {
  margin: 0;
}

.explain {
  margin-top: 40px;
}

.explain h2 {
  font-size: 24px;
  margin: 0 0 12px;
}

.explain dl {
  margin: 0;
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 12px 24px;
}

.explain dt {
  font-weight: 700;
  color: var(--navy);
}

.explain dd {
  margin: 0;
}

@media (max-width: 640px) {
  .explain dl {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .explain dd {
    margin-bottom: 12px;
  }
}

.wall-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin: 56px 0 16px;
}

.wall-head h2 {
  font-size: 28px;
  margin: 0;
}

.count {
  color: var(--muted);
}

.wall {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 20px;
  background: #fff;
}

.card.new {
  animation: arrive 900ms ease-out;
}

@keyframes arrive {
  from {
    opacity: 0;
    transform: translateY(10px);
    border-color: var(--navy);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.card .name {
  font-weight: 700;
  font-size: 20px;
  margin: 0;
}

.card .major {
  color: var(--navy);
  font-size: 15px;
  margin: 2px 0 10px;
}

.card .build-label {
  color: var(--muted);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0;
}

.card .build {
  margin: 2px 0 0;
}

.empty {
  color: var(--muted);
}

footer {
  margin-top: 64px;
  color: var(--muted);
  font-size: 15px;
}

/* The full-screen wall for screen sharing. */
.screen {
  max-width: none;
  padding: 36px 48px;
}

.screen .wall-head {
  margin-top: 28px;
}

.screen .wall-head h2 {
  font-size: 40px;
}

.screen .count {
  font-size: 24px;
}

.screen .wall {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
}

.screen .card .name {
  font-size: 24px;
}

.screen .card .build {
  font-size: 19px;
}

.screen .addyours {
  font-size: 22px;
  color: var(--ink);
}

@media (prefers-reduced-motion: reduce) {
  .card.new {
    animation: none;
  }
}