/* ==========================================================================
   Concepts and guides
   ========================================================================== */

.concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(20rem, 100%), 1fr));
  gap: var(--sp-4);
}
.concept {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: var(--sp-5);
  display: grid;
  gap: var(--sp-3);
  align-content: start;
}
.concept h3 {
  font-family: var(--font-sans);
  font-size: var(--fs-md);
  font-weight: 650;
  letter-spacing: -0.005em;
}
.concept p { font-size: var(--fs-sm); color: var(--text-2); line-height: var(--lh-loose); }
.concept__aside {
  font-size: var(--fs-xs) !important;
  color: var(--text-2) !important;
  border-top: 1px dashed var(--border);
  padding-top: var(--sp-3);
}
.concept--wide { grid-column: 1 / -1; }
.concept--warn {
  border-color: color-mix(in srgb, var(--danger) 35%, var(--border));
  background: linear-gradient(180deg, var(--danger-quiet), var(--surface) 55%);
}
.concept--warn h3 { color: var(--danger); }

/* --------------------------------------------------- primitives table */
.primitive-table {
  display: grid;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: var(--fs-xs);
}
.primitive-table [role='row'] {
  display: grid;
  grid-template-columns: 7rem 1fr 10rem 12rem;
  gap: var(--sp-3);
  padding: 0.6rem 0.8rem;
  align-items: start;
}
.pt-head {
  background: var(--surface-2);
  font-size: var(--fs-3xs);
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-2);
  border-bottom: 1px solid var(--border);
}
.pt-row + .pt-row { border-top: 1px solid var(--border); }
.pt-row [role='rowheader'] {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  color: var(--text);
}
.pt-row [role='cell'] { color: var(--text-2); line-height: 1.55; }
.prim-dot { width: 8px; height: 8px; border-radius: 2px; flex: none; }
.pt-row--tools .prim-dot { background: var(--accent); }
.pt-row--resources .prim-dot { background: var(--teal); }
.pt-row--prompts .prim-dot { background: var(--rose); }
.primitive-table code { font-size: 0.85em; }

@media (max-width: 60rem) {
  .primitive-table [role='row'] { grid-template-columns: 1fr; gap: 0.3rem; }
  .pt-head { display: none !important; }
  .pt-row [role='cell']::before {
    content: attr(data-label);
    display: block;
    font-size: var(--fs-3xs);
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--text-2);
    margin-bottom: 0.1rem;
  }
}

/* --------------------------------------------------------------- guides */
.guide {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  padding: clamp(var(--sp-4), 3vw, var(--sp-6));
  display: grid;
  gap: var(--sp-4);
  scroll-margin-top: calc(var(--header-h, 60px) + var(--sp-5));
}
.guide + .guide { margin-top: var(--sp-5); }
.guide > h3 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: var(--fs-2xl);
  line-height: 1.1;
  letter-spacing: -0.015em;
}
.guide > p { font-size: var(--fs-sm); color: var(--text-2); line-height: var(--lh-loose); max-width: 52rem; }
.guide h4 {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--text);
  margin-top: var(--sp-3);
}
.guide__points { display: grid; gap: var(--sp-2); padding-left: 1.15em; }
.guide__points li { font-size: var(--fs-sm); color: var(--text-2); line-height: var(--lh-loose); margin: 0; }
.guide__split { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(19rem, 100%), 1fr)); gap: var(--sp-6); }

.deflist { display: grid; gap: 0.2rem; margin-top: var(--sp-2); }
.deflist dt {
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--text);
  margin-top: var(--sp-3);
}
.deflist dd {
  margin: 0;
  font-size: var(--fs-xs);
  color: var(--text-2);
  line-height: var(--lh-loose);
  padding-left: 0.9rem;
  border-left: 2px solid var(--border);
}
.deflist__warn { color: var(--amber) !important; border-left-color: color-mix(in srgb, var(--amber) 50%, transparent) !important; }

.guide--trust { border-color: color-mix(in srgb, var(--danger) 28%, var(--border)); }
.checklist { list-style: none; padding: 0; counter-reset: c; display: grid; gap: var(--sp-4); }
.checklist > li {
  counter-increment: c;
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: var(--sp-3);
  margin: 0;
}
.checklist > li::before {
  content: counter(c);
  display: grid;
  place-items: center;
  width: 1.85rem; height: 1.85rem;
  border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  color: var(--text-2);
  font-family: var(--font-mono);
  font-size: var(--fs-2xs);
  font-weight: 700;
}
.checklist h4 { margin: 0.1rem 0 0.25rem; font-size: var(--fs-md); }
.checklist p { font-size: var(--fs-sm); color: var(--text-2); line-height: var(--lh-loose); }

/* --------------------------------------------------------- client tabs */
.clienttabs { display: grid; gap: var(--sp-3); }
.clienttabs [role='tablist'] { display: flex; gap: 0.25rem; flex-wrap: wrap; }

/* ------------------------------------------------------------- glossary */
.glossary {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(20rem, 100%), 1fr));
  gap: var(--sp-4) var(--sp-6);
  margin-top: var(--sp-3);
}
.glossary > div { display: grid; gap: 0.2rem; align-content: start; }
.glossary dt { font-size: var(--fs-sm); font-weight: 700; color: var(--text); }
.glossary dd { margin: 0; font-size: var(--fs-xs); color: var(--text-2); line-height: var(--lh-loose); }

/* ------------------------------------------------------- narrow-viewport safety */
/* Long identifiers and documentation URLs must be allowed to break, or the
   whole guide inherits their min-content width and the page scrolls sideways. */
.guide a,
.guide code,
.client-note,
.client-note a,
.deflist dd,
.glossary dd { overflow-wrap: anywhere; }