/* ============================================================
   MCP FOR MARKETERS — /mcp-for-marketers/
   Loads AFTER ai-tools.css and only adds what the directory
   pattern does not already cover:
     · source badges (official / community / third-party)
     · the two-question cost block inside a card detail
     · the "what is MCP" explainer + flow diagram
     · recipe cards with their agent chains
     · CTA bands and the FAQ accordion
   ============================================================ */

/* ============================================================
   1. SOURCE BADGE — official / community / third-party
   ============================================================ */
.mcp-src {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 3px 9px;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  cursor: help;
}
.mcp-src::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.mcp-src--official    { color: #0F7B4F; background: #E4F6ED; }
.mcp-src--community   { color: #1F5FBF; background: #E7F0FD; }
.mcp-src--third-party { color: #8A5A00; background: #FCF1DC; }

/* The card foot carries two badges plus "Quick look" rather than the
   single pricing pill /ai-tools/ uses, so it wraps instead of squeezing
   the button off the edge on narrow cards. */
/* Badges are grouped so they wrap among themselves and "Quick look" always
   stays pinned right on the first row — otherwise a wide "Third-party" badge
   pushes the button onto its own line on some cards and not others. */
.mcp-card__badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
}
.mcp-card__foot .tool-card__quick { white-space: nowrap; }

/* ============================================================
   2. TWO-QUESTION COST BLOCK (inside the card detail / modal)
   ============================================================ */
.mcp-cost {
  display: grid;
  gap: var(--space-2);
  margin: var(--space-3) 0 var(--space-5);
}
.mcp-cost__row {
  display: grid;
  gap: 2px;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-purple);
  border-radius: var(--radius-md);
  background: var(--color-bg);
}
.mcp-cost__q {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.mcp-cost__a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-dark);
  line-height: 1.5;
}

/* ============================================================
   3. "WHAT IS MCP" EXPLAINER
   ============================================================ */
.mcp-explain {
  padding: var(--space-16) 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-border-light);
  border-bottom: 1px solid var(--color-border-light);
}
.mcp-explain__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: start;
}
@media (min-width: 900px) {
  .mcp-explain__grid { grid-template-columns: 1.15fr 1fr; gap: var(--space-16); }
}

.mcp-explain h2 {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 800;
  line-height: 1.15;
  margin: var(--space-3) 0 var(--space-5);
  color: var(--color-dark);
}
.mcp-explain h3 {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  margin: var(--space-8) 0 var(--space-3);
  color: var(--color-dark);
}
.mcp-explain p {
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-muted);
  margin-bottom: var(--space-4);
}
.mcp-explain__lede {
  font-size: var(--text-lg);
  color: var(--color-dark-80);
}
.mcp-explain__lede strong { color: var(--color-dark); }
.mcp-explain__note {
  margin-top: var(--space-6);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  background: var(--color-purple-light);
  color: var(--color-dark-80);
  font-size: var(--text-sm);
  margin-bottom: 0;
}

/* --- Flow diagram --- */
.mcp-explain__diagram {
  position: sticky;
  top: calc(var(--space-24));
}
@media (max-width: 899px) {
  .mcp-explain__diagram { position: static; }
}
.mcp-flow {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-bg);
  box-shadow: var(--shadow-sm);
}
.mcp-flow__node {
  display: grid;
  gap: 2px;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  text-align: center;
}
.mcp-flow__node--mcp {
  background: var(--color-purple);
  border-color: var(--color-purple);
  box-shadow: var(--shadow-purple);
}
.mcp-flow__node--mcp .mcp-flow__label { color: var(--color-white); }
.mcp-flow__node--mcp .mcp-flow__sub   { color: rgba(255,255,255,0.78); }

.mcp-flow__label {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-dark);
}
.mcp-flow__sub {
  font-size: var(--text-xs);
  color: var(--color-muted);
}

.mcp-flow__arrow {
  justify-self: center;
  width: 2px;
  height: 22px;
  background: linear-gradient(to bottom, var(--color-border), var(--color-purple));
  position: relative;
}
.mcp-flow__arrow::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--color-purple);
}

.mcp-flow__targets {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}
.mcp-flow__targets li {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-dark-80);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mcp-flow__caption {
  margin: var(--space-3) 0 0;
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-muted);
}

/* ============================================================
   4. RECIPES
   ============================================================ */
.mcp-recipes {
  padding: var(--space-20) 0;
  background: var(--color-bg);
}
.mcp-recipes__head {
  max-width: var(--container-narrow);
  margin-bottom: var(--space-12);
}
.mcp-recipes__head h2 {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 800;
  line-height: 1.15;
  margin: var(--space-3) 0 var(--space-4);
  color: var(--color-dark);
}
.mcp-recipes__head p {
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--color-muted);
}

.mcp-recipes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 720px)  { .mcp-recipes__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .mcp-recipes__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

.mcp-recipe {
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-white);
  transition: transform var(--transition-base), box-shadow var(--transition-base),
              border-color var(--transition-base);
}
.mcp-recipe:hover {
  transform: translateY(-3px);
  border-color: var(--color-purple);
  box-shadow: var(--shadow-lg);
}

.mcp-recipe__head {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  margin-bottom: var(--space-5);
}
.mcp-recipe__num {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--color-purple-light);
  color: var(--color-purple-dark);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 800;
}
.mcp-recipe h3 {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  margin: 0 0 var(--space-2);
  color: var(--color-dark);
}
.mcp-recipe__problem {
  margin: 0;
  font-size: var(--text-xs);
  line-height: 1.5;
  color: var(--color-muted);
}

/* --- the agent chain --- */
.mcp-chain {
  list-style: none;
  margin: 0 0 var(--space-5);
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: none;
}
.mcp-chain__step {
  position: relative;
  padding: var(--space-2) var(--space-3);
  padding-left: var(--space-5);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-dark);
  line-height: 1.4;
}
/* the connecting rail */
.mcp-chain__step::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}
.mcp-chain__step:first-child::before { top: 50%; }
.mcp-chain__step:last-child::before  { bottom: 50%; }
/* the dot */
.mcp-chain__step::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-white);
  border: 2px solid var(--color-border);
}
.mcp-chain__step--agent::after,
.mcp-chain__step--out::after {
  background: var(--color-purple);
  border-color: var(--color-purple);
}
.mcp-chain__step--agent,
.mcp-chain__step--out {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-purple-dark);
}
.mcp-chain__step a {
  color: var(--color-dark);
  text-decoration: underline;
  text-decoration-color: var(--color-purple-mid);
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}
.mcp-chain__step a:hover { color: var(--color-purple); }
.mcp-chain__step span {
  display: block;
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--color-muted);
}

.mcp-recipe__out {
  margin: 0 0 var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-dark-80);
}
.mcp-recipe__out strong { color: var(--color-dark); }
.mcp-recipe__out a { color: var(--color-purple-dark); }

.mcp-recipe__meta {
  margin: auto 0 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border-light);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-muted);
}
.mcp-recipe__meta span { white-space: nowrap; }

/* ============================================================
   5. FREE vs PAID CALLOUT
   ============================================================ */
.mcp-costnote {
  padding: var(--space-12) 0 0;
  background: var(--color-bg);
}
.mcp-costnote__inner {
  padding: var(--space-8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-white);
}
.mcp-costnote h2 {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 800;
  margin: 0 0 var(--space-3);
  color: var(--color-dark);
}
.mcp-costnote > .container > .mcp-costnote__inner > p {
  font-size: var(--text-base);
  color: var(--color-muted);
  line-height: 1.7;
}
.mcp-costnote__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}
@media (min-width: 700px) {
  .mcp-costnote__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.mcp-costnote__cols > div {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  background: var(--color-purple-light);
}
.mcp-costnote__cols h3 {
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 700;
  margin: 0 0 var(--space-2);
  color: var(--color-dark);
}
.mcp-costnote__cols p {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-dark-80);
}
.mcp-costnote__examples {
  list-style: none;
  margin: 0 0 var(--space-5);
  padding: 0;
  display: grid;
  gap: var(--space-2);
}
.mcp-costnote__examples li {
  position: relative;
  padding-left: var(--space-5);
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-muted);
}
.mcp-costnote__examples li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-purple);
  font-weight: 700;
}
.mcp-costnote__examples strong { color: var(--color-dark); }
.mcp-costnote__foot {
  margin: 0;
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border-light);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-muted);
}
.mcp-costnote__foot strong { color: var(--color-dark); }

/* ============================================================
   6. CTA BANDS
   ============================================================ */
.mcp-cta { padding: var(--space-16) 0; }
.mcp-cta--mid { background: var(--color-white); }
.mcp-cta--end { background: var(--color-bg); padding-bottom: var(--space-20); }

.mcp-cta__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: center;
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  background: var(--color-dark);
  color: var(--color-white);
}
@media (min-width: 860px) {
  .mcp-cta__inner { grid-template-columns: 1.5fr auto; gap: var(--space-10); }
}
.mcp-cta--end .mcp-cta__inner {
  background: linear-gradient(135deg, var(--color-purple) 0%, var(--color-purple-dark) 100%);
  box-shadow: var(--shadow-purple);
}

.mcp-cta__copy h2 {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.2;
  margin: 0 0 var(--space-3);
  color: var(--color-white);
}
.mcp-cta__copy p {
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.7;
  color: rgba(255,255,255,0.78);
}
.mcp-cta__copy .eyebrow { color: rgba(255,255,255,0.7); }

.mcp-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.mcp-cta__actions .btn--primary {
  background: var(--color-white);
  color: var(--color-dark);
  border-color: var(--color-white);
}
.mcp-cta__actions .btn--primary:hover {
  background: var(--color-purple-light);
  color: var(--color-purple-dark);
  border-color: var(--color-purple-light);
}
.mcp-cta__actions .btn--ghost {
  color: var(--color-white);
  border-color: rgba(255,255,255,0.35);
  background: transparent;
}
.mcp-cta__actions .btn--ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--color-white);
  color: var(--color-white);
}

/* ============================================================
   7. FAQ
   ============================================================ */
.mcp-faq {
  padding: var(--space-20) 0 var(--space-12);
  background: var(--color-white);
}
.mcp-faq h2 {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 800;
  margin: 0 0 var(--space-8);
  color: var(--color-dark);
}
.mcp-faq__list {
  display: grid;
  gap: var(--space-3);
  max-width: 860px;
}
.mcp-faq__item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}
.mcp-faq__item[open] { border-color: var(--color-purple); }
.mcp-faq__item summary {
  cursor: pointer;
  list-style: none;
  padding: var(--space-5) var(--space-6);
  padding-right: var(--space-12);
  position: relative;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-dark);
}
.mcp-faq__item summary::-webkit-details-marker { display: none; }
.mcp-faq__item summary::after {
  content: '';
  position: absolute;
  right: var(--space-6);
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-purple);
  border-bottom: 2px solid var(--color-purple);
  transform: translateY(-70%) rotate(45deg);
  transition: transform var(--transition-fast);
}
.mcp-faq__item[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.mcp-faq__item summary:focus-visible {
  outline: 2px solid var(--color-purple);
  outline-offset: -2px;
}
.mcp-faq__item p {
  margin: 0;
  padding: 0 var(--space-6) var(--space-6);
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-muted);
}
.mcp-faq__item a { color: var(--color-purple-dark); }

/* ============================================================
   8. RESPONSIVE TRIMS
   ============================================================ */
@media (max-width: 640px) {
  .mcp-explain  { padding: var(--space-12) 0; }
  .mcp-recipes  { padding: var(--space-12) 0; }
  .mcp-faq      { padding: var(--space-12) 0 var(--space-8); }
  .mcp-cta      { padding: var(--space-10) 0; }

  .mcp-explain h2,
  .mcp-recipes__head h2 { font-size: var(--text-3xl); }
  .mcp-cta__copy h2     { font-size: var(--text-2xl); }
  .mcp-faq h2           { font-size: var(--text-2xl); }

  .mcp-cta__inner,
  .mcp-costnote__inner { padding: var(--space-6); }

  .mcp-flow__targets { grid-template-columns: 1fr; }
  .mcp-cta__actions .btn { width: 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  .mcp-recipe { transition: none; }
  .mcp-recipe:hover { transform: none; }
}