.amde-grid-lesson {
  --ag-navy: #101b36;
  --ag-blue: #2855d9;
  --ag-lime: #d6f36a;
  --ag-ink: #172033;
  --ag-muted: #647087;
  --ag-paper: #f5f7fb;
  --ag-line: #dce2ec;
  color: var(--ag-ink);
  font-family: inherit;
  line-height: 1.7;
  max-width: 1100px;
  margin: 0 auto;
}
.amde-grid-lesson * { box-sizing: border-box; }
.amde-grid-lesson .ag-hero {
  background: var(--ag-navy);
  color: #fff;
  padding: clamp(28px, 5vw, 58px);
  border-radius: 18px;
  margin-bottom: 32px;
}
.amde-grid-lesson .ag-eyebrow {
  color: var(--ag-lime);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}
.amde-grid-lesson .ag-hero h1 {
  color: #fff;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.08;
  margin: 14px 0;
}
.amde-grid-lesson .ag-hero p { color: #e0e7f5; max-width: 760px; }
.amde-grid-lesson .ag-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.amde-grid-lesson .ag-chip {
  display: inline-block;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.22);
  color: #fff;
  border-radius: 999px;
  padding: 5px 12px;
  font-size: .82rem;
}
.amde-grid-lesson .ag-section { margin: 34px 0; }
.amde-grid-lesson .ag-section h2 {
  color: var(--ag-navy);
  font-size: clamp(1.45rem, 3vw, 2rem);
  line-height: 1.2;
  margin-bottom: 12px;
}
.amde-grid-lesson .ag-section h3 {
  color: var(--ag-navy);
  font-size: 1.15rem;
  margin-bottom: 8px;
}
.amde-grid-lesson .ag-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr));
  gap: 16px;
  margin: 20px 0;
}
.amde-grid-lesson .ag-card {
  border: 1px solid var(--ag-line);
  border-radius: 14px;
  padding: 20px;
  background: #fff;
}
.amde-grid-lesson .ag-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--ag-lime);
  color: var(--ag-navy);
  font-weight: 800;
  margin-bottom: 10px;
}
.amde-grid-lesson .ag-callout {
  border-left: 5px solid var(--ag-blue);
  background: #edf2ff;
  padding: 17px 20px;
  border-radius: 0 12px 12px 0;
  margin: 20px 0;
}
.amde-grid-lesson .ag-callout strong { color: var(--ag-navy); }
.amde-grid-lesson .ag-code {
  background: #111827;
  color: #e5edf8;
  padding: 20px;
  border-radius: 12px;
  overflow-x: auto;
  margin: 14px 0 22px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .9rem;
  line-height: 1.65;
  white-space: pre;
}
.amde-grid-lesson .ag-code code {
  font-family: inherit;
  color: inherit;
}
.amde-grid-lesson .ag-tag { color: #8be9fd; }
.amde-grid-lesson .ag-attr { color: #ffcc80; }
.amde-grid-lesson .ag-value { color: #c3e88d; }
.amde-grid-lesson .ag-text { color: #f4f4f5; }
.amde-grid-lesson .ag-css-prop { color: #82aaff; }
.amde-grid-lesson .ag-css-value { color: #c3e88d; }
.amde-grid-lesson .ag-code-label {
  color: var(--ag-muted);
  font-size: .78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .1em;
  margin: 18px 0 6px;
}
.amde-grid-lesson .ag-inline {
  background: #edf0f6;
  color: #182849;
  padding: 2px 6px;
  border-radius: 5px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .92em;
}
.amde-grid-lesson .ag-steps {
  counter-reset: ag-step;
  list-style: none;
  padding: 0;
}
.amde-grid-lesson .ag-steps li {
  counter-increment: ag-step;
  position: relative;
  padding: 4px 0 18px 48px;
  margin-bottom: 10px;
}
.amde-grid-lesson .ag-steps li::before {
  content: counter(ag-step);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--ag-navy);
  color: #fff;
  font-weight: 800;
}
.amde-grid-lesson .ag-checklist {
  padding: 18px 22px;
  border: 1px solid var(--ag-line);
  border-radius: 12px;
  background: var(--ag-paper);
}
.amde-grid-lesson .ag-checklist li { margin: 8px 0; }
.amde-grid-lesson .ag-footer {
  background: var(--ag-navy);
  color: #fff;
  border-radius: 14px;
  padding: 24px;
  margin-top: 34px;
}
.amde-grid-lesson .ag-footer h2 { color: var(--ag-lime); }
.amde-grid-lesson a {
  overflow-wrap: anywhere;
  color: #234ac0;
  text-underline-offset: 3px;
}
.amde-grid-lesson a:focus-visible,
.amde-grid-lesson button:focus-visible,
.amde-grid-lesson input:focus-visible,
.amde-grid-lesson textarea:focus-visible,
.amde-grid-lesson select:focus-visible {
  outline: 3px solid #2855d9;
  outline-offset: 3px;
}
@media (max-width: 600px) {
  .amde-grid-lesson .ag-hero { border-radius: 12px; }
  .amde-grid-lesson .ag-card { padding: 16px; }
  .amde-grid-lesson .ag-code { padding: 15px; font-size: .82rem; }
}

/* Instructor-only walkthrough: preserve the AMDE 155 navy/lime/blue palette */
.amde-grid-lesson .ag-instructor {
  margin: 38px 0 24px;
  border: 2px dashed #2855d9;
  border-radius: 16px;
  overflow: hidden;
  background: #f5f7fb;
  color: #172033;
}
.amde-grid-lesson .ag-instructor-banner {
  background: #101b36;
  color: #ffffff;
  padding: 22px 24px;
}
.amde-grid-lesson .ag-instructor-banner .ag-eyebrow {
  color: #d6f36a;
}
.amde-grid-lesson .ag-instructor-banner h2 {
  color: #ffffff;
  margin: 8px 0;
}
.amde-grid-lesson .ag-instructor-banner p {
  color: #e0e7f5;
  margin-bottom: 0;
}
.amde-grid-lesson .ag-instructor-body {
  padding: 24px;
}
.amde-grid-lesson .ag-instructor-body h3 {
  color: #101b36;
  margin-top: 24px;
}
.amde-grid-lesson .ag-instructor-note {
  background: #edf2ff;
  border-left: 5px solid #2855d9;
  border-radius: 0 10px 10px 0;
  padding: 14px 18px;
  margin: 16px 0;
}
.amde-grid-lesson .ag-instructor-error {
  background: #fff4e8;
  border: 1px solid #e6a15a;
  border-radius: 10px;
  padding: 16px 18px;
  margin: 16px 0;
}
.amde-grid-lesson .ag-instructor pre {
  white-space: pre;
  overflow-x: auto;
}
@media (max-width: 600px) {
  .amde-grid-lesson .ag-instructor-body { padding: 16px; }
  .amde-grid-lesson .ag-instructor-banner { padding: 18px; }
}