/* ============================================================
   THE LISTING BUREAU — MCP Landing Page Styles
   Extends the base design system (style.css variables + BEM)
   ============================================================ */

/* ── MCP Hero ── */
.mcp-hero {
  position: relative;
  padding: 180px 0 100px;
  background-color: var(--navy);
  background-image: radial-gradient(circle, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size: 24px 24px;
  border-top: 3px solid var(--brass);
  overflow: hidden;
}
.mcp-hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.mcp-hero__circle {
  position: absolute;
  border-radius: 50%;
  top: 50%;
  right: -10%;
  transform: translateY(-50%);
}
.mcp-hero__circle--lg {
  width: 700px;
  height: 700px;
  border: 1px solid rgba(184,145,58,0.07);
}
.mcp-hero__circle--md {
  width: 480px;
  height: 480px;
  border: 1px solid rgba(184,145,58,0.05);
  right: 2%;
}
.mcp-hero__circle--sm {
  width: 260px;
  height: 260px;
  border: 1px solid rgba(184,145,58,0.04);
  right: 12%;
}
.mcp-hero .container {
  position: relative;
  z-index: 1;
}
.mcp-hero__inner {
  max-width: 900px;
}
.mcp-hero__headline {
  font-family: var(--font-serif);
  font-size: clamp(40px, 5.5vw, 72px);
  font-weight: 700;
  color: var(--ivory);
  line-height: 1.08;
  margin-bottom: 28px;
  letter-spacing: -0.01em;
}
.mcp-hero__sub {
  font-size: 18px;
  color: rgba(237,232,223,0.65);
  max-width: 560px;
  margin-bottom: 40px;
  line-height: 1.65;
  font-weight: 300;
}
.mcp-hero__proof {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid rgba(237,232,223,0.1);
  flex-wrap: wrap;
}
.mcp-hero__proof-item {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: rgba(237,232,223,0.35);
  text-transform: uppercase;
}
.mcp-hero__proof-sep {
  width: 1px;
  height: 14px;
  background: rgba(237,232,223,0.15);
  flex-shrink: 0;
}

/* ── 3-Step Setup ── */
.mcp-setup__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-bottom: 64px;
}
.mcp-setup__step {
  display: flex;
  gap: 20px;
  padding: 0 32px 0 0;
  border-right: 1px solid rgba(107,114,128,0.12);
}
.mcp-setup__step:last-child {
  border-right: none;
  padding-right: 0;
}
.mcp-setup__step:nth-child(2) {
  padding-left: 32px;
}
.mcp-setup__step:nth-child(3) {
  padding-left: 32px;
}
.mcp-setup__step-num {
  font-family: var(--font-serif);
  font-size: 52px;
  font-weight: 700;
  color: var(--brass);
  line-height: 1;
  opacity: 0.85;
  flex-shrink: 0;
}
.mcp-setup__step-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 500;
  color: var(--dark-txt);
  margin-bottom: 10px;
}
.mcp-setup__step-text {
  font-size: 14px;
  color: var(--grey);
  line-height: 1.75;
}

@media (max-width: 900px) {
  .mcp-setup__steps {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .mcp-setup__step {
    border-right: none;
    padding: 0;
    border-bottom: 1px solid rgba(107,114,128,0.12);
    padding-bottom: 36px;
  }
  .mcp-setup__step:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  .mcp-setup__step:nth-child(2),
  .mcp-setup__step:nth-child(3) {
    padding-left: 0;
  }
}

/* ── Config Block ── */
.mcp-config {
  background: var(--white);
  border: 1px solid rgba(107,114,128,0.12);
  border-radius: var(--radius);
  overflow: hidden;
}
.mcp-config__tabs {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid rgba(107,114,128,0.12);
}
.mcp-config__tab {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--grey);
  background: transparent;
  border: none;
  padding: 14px 24px;
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.mcp-config__tab:hover {
  color: var(--dark-txt);
}
.mcp-config__tab--active {
  color: var(--brass);
  border-bottom-color: var(--brass);
}
.mcp-config__panel {
  display: none;
  margin: 0;
}
.mcp-config__panel--active {
  display: block;
}
/* ── Config Panel Variants ── */
.mcp-config__panel-body {
  padding: 28px 32px;
}
.mcp-config__pre {
  margin: 0;
  padding: 20px 24px;
  background: var(--navy);
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(237,232,223,0.85);
  overflow-x: auto;
  border-radius: 0;
}
.mcp-config__pre code {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}
.mcp-config__cmd {
  margin: 0;
  padding: 14px 48px 14px 18px;
  background: var(--navy);
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(237,232,223,0.85);
  border-radius: 6px;
  overflow-x: auto;
}
.mcp-config__cmd code {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}
.mcp-config__code-wrap,
.mcp-config__cmd-wrap {
  position: relative;
}
.mcp-config__copy {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: rgba(237,232,223,0.08);
  border: 1px solid rgba(237,232,223,0.12);
  border-radius: 4px;
  color: rgba(237,232,223,0.5);
  cursor: pointer;
  transition: all var(--transition);
}
.mcp-config__copy:hover {
  background: rgba(237,232,223,0.14);
  color: rgba(237,232,223,0.8);
}
.mcp-config__copy--done {
  background: rgba(184,145,58,0.2) !important;
  border-color: var(--brass) !important;
  color: var(--brass) !important;
}
.mcp-config__copy--fail {
  background: rgba(220,38,38,0.15) !important;
  border-color: rgba(220,38,38,0.5) !important;
  color: rgba(220,38,38,0.8) !important;
}
.mcp-config__method {
  margin-bottom: 4px;
}
.mcp-config__method-label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 12px;
}
.mcp-config__divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 20px 0;
  color: var(--grey-lt);
  font-size: 12px;
  font-weight: 500;
}
.mcp-config__divider::before,
.mcp-config__divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(107,114,128,0.15);
}
.mcp-config__alt {
  margin: 0;
}
.mcp-config__alt-toggle {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--grey);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition);
}
.mcp-config__alt-toggle:hover {
  color: var(--dark-txt);
}
.mcp-config__alt-toggle::-webkit-details-marker {
  display: none;
}
.mcp-config__alt-toggle::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(-45deg);
  transition: transform var(--transition);
}
.mcp-config__alt[open] > .mcp-config__alt-toggle::before {
  transform: rotate(45deg);
}
.mcp-config__alt-body {
  padding-top: 16px;
}
.mcp-config__action {
  margin: 12px 0 16px;
}
.mcp-config__btn {
  font-size: 14px;
  padding: 12px 28px;
}
.mcp-config__callout {
  padding: 14px 18px;
  background: var(--offwhite);
  border-left: 3px solid var(--brass);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 13px;
  color: var(--grey);
  line-height: 1.65;
}
.mcp-config__callout code {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 11px;
  background: rgba(13,31,60,0.06);
  padding: 1px 4px;
  border-radius: 2px;
}
.mcp-config__note {
  font-size: 13px;
  color: var(--grey-lt);
  line-height: 1.7;
  margin-top: 12px;
}
.mcp-config__note code {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 11px;
  background: rgba(13,31,60,0.06);
  padding: 1px 4px;
  border-radius: 2px;
}
.mcp-config__link {
  color: var(--brass);
  text-decoration: none;
  transition: color var(--transition);
}
.mcp-config__link:hover {
  color: var(--brass-lt);
}

/* ── Educational Content ── */
.mcp-edu {
  max-width: 720px;
  margin-bottom: 56px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(107,114,128,0.12);
}
.mcp-edu:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}
.mcp-edu__heading {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 500;
  color: var(--dark-txt);
  margin-bottom: 18px;
}
.mcp-edu__text {
  font-size: 16px;
  color: var(--grey);
  line-height: 1.8;
  margin-bottom: 18px;
}
.mcp-edu__text:last-child {
  margin-bottom: 0;
}

/* ── Educational sub-sections ── */
.mcp-edu__rationale {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid rgba(107,114,128,0.12);
}
.mcp-edu__subheading {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 500;
  color: var(--dark-txt);
  margin-bottom: 10px;
}

/* ── Signal Hierarchy (visual) ── */
.mcp-signals {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-top: 28px;
}
.mcp-signal {
  flex: 1;
  padding: 24px 24px 24px 0;
  border-right: 1px solid rgba(107,114,128,0.12);
}
.mcp-signal:last-child {
  border-right: none;
}
.mcp-signal:nth-child(n+2) {
  padding-left: 24px;
}
.mcp-signal__label {
  display: block;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(13,31,60,0.3);
  margin-bottom: 8px;
  min-height: 14px;
}
.mcp-signal__name {
  display: block;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 500;
  color: var(--dark-txt);
  margin-bottom: 4px;
}
.mcp-signal__price {
  display: block;
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--brass);
  line-height: 1;
  margin-bottom: 12px;
}
.mcp-signal__desc {
  font-size: 13px;
  color: var(--grey);
  line-height: 1.7;
}
.mcp-signal__arrow {
  flex-shrink: 0;
  width: 32px;
  align-self: center;
  margin-top: 20px;
  color: rgba(184,145,58,0.35);
  padding: 0 4px;
}
.mcp-signal__arrow svg {
  width: 100%;
  height: auto;
}

@media (max-width: 900px) {
  .mcp-signals {
    flex-direction: column;
    gap: 0;
  }
  .mcp-signal {
    border-right: none;
    border-bottom: 1px solid rgba(107,114,128,0.12);
    padding: 20px 0;
  }
  .mcp-signal:last-child {
    border-bottom: none;
  }
  .mcp-signal:nth-child(n+2) {
    padding-left: 0;
  }
  .mcp-signal__arrow {
    transform: rotate(90deg);
    margin: 8px auto;
  }
}

/* ── Campaign Steps (4-col within educational section) ── */
.mcp-campaign-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 28px;
  border-top: 1px solid rgba(184,145,58,0.18);
}
.mcp-campaign-step {
  padding: 28px 24px 0 0;
}
.mcp-campaign-step:last-child {
  padding-right: 0;
}
.mcp-campaign-step__num {
  display: block;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--brass);
  margin-bottom: 14px;
}
.mcp-campaign-step__title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 500;
  color: var(--dark-txt);
  margin-bottom: 10px;
}
.mcp-campaign-step__text {
  font-size: 13px;
  color: var(--grey);
  line-height: 1.7;
}

@media (max-width: 900px) {
  .mcp-campaign-steps {
    grid-template-columns: 1fr 1fr;
    gap: 28px 32px;
  }
  .mcp-campaign-step { padding-right: 0; }
}
@media (max-width: 600px) {
  .mcp-campaign-steps { grid-template-columns: 1fr; }
}

/* ── Tools Table ── */
.mcp-tools__group {
  margin-bottom: 48px;
}
.mcp-tools__group:last-child {
  margin-bottom: 0;
}
.mcp-tools__group-title {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(184,145,58,0.18);
}
.mcp-tools__table {
  border-top: none;
}
.mcp-tool {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 0 32px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(107,114,128,0.08);
  align-items: baseline;
}
.mcp-tool:last-child {
  border-bottom: none;
}
.mcp-tool__name {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 13px;
  color: var(--navy);
  background: rgba(13,31,60,0.05);
  padding: 3px 8px;
  border-radius: 2px;
  display: inline-block;
}
.mcp-tool__desc {
  font-size: 14px;
  color: var(--grey);
  line-height: 1.65;
}

@media (max-width: 900px) {
  .mcp-tool {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

/* ── Featured tool group (Cost Estimation) ── */
.mcp-tools__group--featured {
  border: 1px solid rgba(184,145,58,0.18);
  border-radius: var(--radius);
  padding: 28px 32px 24px;
  background: var(--offwhite);
}
.mcp-tools__group--featured .mcp-tools__group-title {
  display: flex;
  align-items: center;
  gap: 12px;
}
.mcp-tools__badge {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--brass);
  padding: 2px 8px;
  border-radius: 2px;
  vertical-align: middle;
  line-height: 1.4;
}
.mcp-tool--featured .mcp-tool__name {
  background: rgba(184,145,58,0.10);
}
@media (max-width: 900px) {
  .mcp-tools__group--featured { padding: 20px 20px 16px; }
}

/* ── Demo Video ── */
.mcp-demo {
  max-width: 960px;
  margin: 0 auto;
}
.mcp-demo__video {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid rgba(184,145,58,0.15);
  display: block;
}
.mcp-demo__caption {
  font-size: 13px;
  color: rgba(237,232,223,0.4);
  margin-top: 16px;
  letter-spacing: 0.02em;
  text-align: center;
}

/* ── Pricing Rate Cards ── */
.mcp-rates {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid rgba(184,145,58,0.18);
  border-bottom: 1px solid rgba(107,114,128,0.12);
  margin-bottom: 48px;
}
.mcp-rate {
  padding: 36px 32px 36px 0;
  border-right: 1px solid rgba(107,114,128,0.12);
}
.mcp-rate:last-child {
  border-right: none;
  padding-left: 32px;
}
.mcp-rate:nth-child(2) {
  padding-left: 32px;
}
.mcp-rate__price {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(40px, 4vw, 56px);
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
.mcp-rate__plus {
  font-size: 0.5em;
  color: var(--brass);
  vertical-align: super;
}
.mcp-rate__service {
  display: block;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 500;
  color: var(--dark-txt);
  margin-bottom: 10px;
}
.mcp-rate__desc {
  font-size: 13px;
  color: var(--grey);
  line-height: 1.7;
}

@media (max-width: 900px) {
  .mcp-rates {
    grid-template-columns: 1fr;
    border-top: none;
  }
  .mcp-rate {
    border-right: none;
    border-top: 1px solid rgba(107,114,128,0.12);
    padding: 28px 0;
  }
  .mcp-rate:last-child { padding-left: 0; }
  .mcp-rate:nth-child(2) { padding-left: 0; }
}

/* ── SFB Breakdown ── */
.mcp-sfb {
  margin-bottom: 48px;
  padding: 36px;
  background: var(--offwhite);
  border-left: 3px solid var(--brass);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.mcp-sfb__title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 500;
  color: var(--dark-txt);
  margin-bottom: 12px;
}
.mcp-sfb__text {
  font-size: 15px;
  color: var(--grey);
  line-height: 1.75;
  margin-bottom: 20px;
}
.mcp-sfb__formula {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--dark-txt);
  padding: 16px 0;
  margin-bottom: 16px;
}
.mcp-sfb__op {
  color: var(--brass);
  font-weight: 600;
}
.mcp-sfb__note {
  font-size: 13px;
  color: var(--grey-lt);
  line-height: 1.7;
  margin-bottom: 16px;
}
.mcp-sfb__example {
  font-size: 14px;
  color: var(--grey);
  line-height: 1.7;
}
.mcp-sfb__example strong {
  color: var(--dark-txt);
  font-weight: 600;
}

/* ── Wallet Note ── */
.mcp-wallet-note {
  font-size: 14px;
  color: var(--grey-lt);
  line-height: 1.7;
  padding-top: 24px;
  border-top: 1px solid rgba(107,114,128,0.08);
}

/* ── FAQ overrides for inline code ── */
.faq__answer code {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 12px;
  background: rgba(13,31,60,0.06);
  padding: 2px 6px;
  border-radius: 2px;
  color: var(--navy);
}

/* ── Config tab switching (JS-free fallback: first panel visible) ── */
/* Tab switching requires a small script — see below */

/* ── MCP Apply section: widen content ── */
.section--apply .apply__content { max-width: 860px; }

/* ── MCP Hero responsive ── */
@media (max-width: 900px) {
  .mcp-hero {
    padding: 140px 0 72px;
  }
  .mcp-hero__circle--lg { width: 500px; height: 500px; }
  .mcp-hero__circle--md { width: 340px; height: 340px; }
  .mcp-hero__circle--sm { width: 180px; height: 180px; }
}
@media (max-width: 600px) {
  .mcp-hero__headline { font-size: 36px; }
  .mcp-hero__proof { flex-direction: column; align-items: flex-start; gap: 10px; }
  .mcp-hero__proof-sep { display: none; }
  .mcp-config__tab { padding: 12px 14px; font-size: 11px; letter-spacing: 0.04em; }
  .mcp-config__panel-body { padding: 20px; }
}