/* ============================================================
   The conversion masterclass — numbered chapters, blueprint icons,
   sticky progress rail. Layered on the Night Garage theme.
   ============================================================ */
.mc-page { --mc-max: 1080px; }
.mc-page main { padding-bottom: var(--sp-8); }

/* --- Hero --- */
.mc-hero {
  width: min(calc(100% - 2 * var(--gutter)), var(--mc-max));
  margin: clamp(2rem, 5vw, 4rem) auto clamp(1.5rem, 4vw, 3rem);
}
.mc-hero .eyebrow { color: var(--vroom-accent); }
.mc-hero h1 {
  margin: var(--sp-3) 0 var(--sp-4);
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6.5rem);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 0.86;
  color: var(--bone);
}
.mc-hero h1 em { color: var(--vroom-accent); font-style: normal; }
.mc-hero__deck { max-width: 44rem; margin: 0; color: var(--ink-soft); font-size: clamp(1.05rem, 1.7vw, 1.35rem); line-height: 1.5; }
.mc-hero__chapters {
  display: flex; flex-wrap: wrap; gap: var(--sp-2) var(--sp-5);
  margin: var(--sp-6) 0 0; padding: var(--sp-5) 0 0;
  border-top: 1px solid var(--rule-soft);
  list-style: none;
}
.mc-hero__chapters li { display: flex; align-items: baseline; gap: 8px; color: var(--ink-soft); font-family: var(--font-caps); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }
.mc-hero__chapters b { font-family: var(--font-mono); color: var(--vroom-accent); font-size: 0.9rem; }

/* --- Sticky progress rail --- */
.mc-rail {
  position: sticky; top: 60px; z-index: 40;
  display: flex; gap: 2px; overflow-x: auto;
  width: 100%; padding: var(--sp-2) max(var(--gutter), calc((100% - var(--mc-max)) / 2));
  background: color-mix(in srgb, var(--vroom-canvas) 90%, transparent);
  border-block: 1px solid var(--rule-soft);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  scrollbar-width: none;
}
.mc-rail::-webkit-scrollbar { display: none; }
.mc-rail__item {
  display: inline-flex; align-items: center; gap: 8px; flex: 0 0 auto;
  padding: 8px 14px; border-radius: var(--r-pill);
  color: var(--ink-faint); text-decoration: none;
  font-family: var(--font-caps); font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase; white-space: nowrap;
  transition: color var(--t-fast), background var(--t-fast);
}
.mc-rail__item b { font-family: var(--font-mono); color: var(--ink-faint); transition: color var(--t-fast); }
.mc-rail__item:hover { color: var(--vroom-ink); }
.mc-rail__item.is-active { background: var(--vroom-accent-soft); color: var(--vroom-accent); }
.mc-rail__item.is-active b { color: var(--vroom-accent); }

/* --- Chapters --- */
.mc-chapters { width: min(calc(100% - 2 * var(--gutter)), var(--mc-max)); margin: 0 auto; }
.mc-chapter {
  position: relative;
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  border-bottom: 1px solid var(--rule-soft);
  scroll-margin-top: 120px;
}
.mc-chapter:focus-visible { outline: none; }
.mc-chapter__num {
  position: absolute; top: clamp(1.5rem, 5vw, 3.5rem); right: 0; z-index: 0;
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(6rem, 18vw, 15rem); line-height: 0.8;
  color: transparent;
  -webkit-text-stroke: 1.5px color-mix(in srgb, var(--vroom-accent) 22%, transparent);
  text-stroke: 1.5px color-mix(in srgb, var(--vroom-accent) 22%, transparent);
  pointer-events: none; user-select: none;
}
.mc-chapter__head { position: relative; z-index: 1; display: flex; gap: var(--sp-4); align-items: flex-start; max-width: 46rem; }
.mc-icon { flex: 0 0 auto; width: clamp(40px, 6vw, 56px); height: auto; color: var(--vroom-accent); }
.mc-chapter__kicker { margin: 0 0 4px; color: var(--vroom-accent); font-family: var(--font-mono); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; }
.mc-chapter__head h2 { margin: 0; font-family: var(--font-display); font-size: clamp(1.9rem, 3.6vw, 3rem); font-weight: 500; letter-spacing: -0.035em; line-height: 0.98; }
.mc-chapter__deck { margin: var(--sp-2) 0 0; color: var(--ink-soft); font-size: clamp(1rem, 1.5vw, 1.2rem); line-height: 1.5; }

.mc-chapter__body {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(240px, 0.9fr);
  gap: clamp(1.5rem, 4vw, 3rem); align-items: start;
  margin-top: clamp(1.5rem, 3vw, 2.5rem);
}

/* Numbered steps */
.mc-steps { counter-reset: step; margin: 0; padding: 0; list-style: none; display: grid; gap: var(--sp-3); }
.mc-steps li {
  counter-increment: step;
  position: relative; padding-left: 3rem;
  color: var(--vroom-ink); font-size: clamp(0.98rem, 1.4vw, 1.1rem); line-height: 1.5;
}
.mc-steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute; left: 0; top: -1px;
  font-family: var(--font-mono); font-size: 0.9rem; font-weight: 700;
  color: var(--vroom-accent);
  width: 2.1rem; text-align: right;
}
.mc-steps li::after {
  content: ""; position: absolute; left: 2.35rem; top: 0.55em; bottom: -0.9rem;
  width: 1px; background: var(--rule-soft);
}
.mc-steps li:last-child::after { display: none; }

/* Side: stat callouts + watch-out */
.mc-chapter__side { display: grid; gap: var(--sp-3); }
.mc-stats { display: grid; gap: var(--sp-2); margin: 0; padding: 0; list-style: none; }
.mc-stats li {
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--rule-soft); border-radius: 14px;
  background: var(--vroom-surface);
}
.mc-stats strong { display: block; font-family: var(--font-display); font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 600; letter-spacing: -0.02em; line-height: 1; color: var(--vroom-accent); }
.mc-stats span { display: block; margin-top: 4px; color: var(--ink-faint); font-size: 0.6rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.mc-watch {
  margin: 0; padding: var(--sp-3) var(--sp-4);
  border-left: 2px solid var(--gauge-warm); border-radius: 0 10px 10px 0;
  background: var(--vroom-surface-muted);
  color: var(--ink-soft); font-size: 0.86rem; line-height: 1.45;
}
.mc-watch span { display: block; margin-bottom: 3px; color: var(--gauge-warm); font-size: 0.58rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; }

/* Battery routes under chapter 04 */
.mc-battery { position: relative; z-index: 1; margin-top: clamp(1.5rem, 3vw, 2.5rem); }
.mc-battery__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: var(--sp-3); margin-bottom: var(--sp-3); }
.mc-battery__head h3 { margin: 0; font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; letter-spacing: -0.02em; }
.mc-battery__trend { margin: 0; color: var(--ink-faint); font-family: var(--font-mono); font-size: 0.78rem; }
.mc-battery__trend span { text-transform: uppercase; letter-spacing: 0.05em; font-size: 0.62rem; }
.mc-battery__trend b { color: var(--ink); font-size: 1rem; }
.mc-battery__trend b.is-now { color: var(--vroom-accent); }
.mc-battery__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: var(--sp-3); }
.mc-battery__card { display: flex; flex-direction: column; padding: var(--sp-3) var(--sp-4); border: 1px solid var(--rule-soft); border-radius: 14px; background: var(--vroom-surface); }
.mc-battery__card h4 { margin: 0 0 var(--sp-2); font-family: var(--font-display); font-size: 1.02rem; font-weight: 600; line-height: 1.1; }
.mc-battery__figures { display: grid; grid-template-columns: 1fr 1fr; gap: 2px var(--sp-3); align-items: baseline; margin: 0 0 var(--sp-2); }
.mc-battery__figures strong { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; color: var(--vroom-accent); }
.mc-battery__figures span { color: var(--ink-faint); font-size: 0.56rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.mc-battery__watch { margin: 0 0 var(--sp-2); color: var(--ink-soft); font-size: 0.78rem; line-height: 1.4; }
.mc-battery__card .mc-links { margin-top: auto; }

/* --- Directory --- */
.mc-directory { width: min(calc(100% - 2 * var(--gutter)), var(--mc-max)); margin: clamp(2.5rem, 6vw, 4.5rem) auto 0; }
.mc-directory__head { max-width: 44rem; margin-bottom: clamp(1.5rem, 4vw, 2.5rem); }
.mc-directory__head .eyebrow { color: var(--vroom-accent); }
.mc-directory__head h2 { margin: var(--sp-2) 0 var(--sp-3); font-family: var(--font-display); font-size: clamp(2.2rem, 4.5vw, 3.6rem); font-weight: 500; letter-spacing: -0.035em; line-height: 0.95; }
.mc-directory__deck { margin: 0; color: var(--ink-soft); font-size: clamp(1rem, 1.5vw, 1.2rem); }

.mc-suppliers { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.25rem, 3vw, 2rem); }
.mc-supplier {
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  border: 1px solid var(--rule-soft); border-radius: 20px;
  background: var(--vroom-surface);
}
.mc-supplier__title { display: flex; align-items: center; gap: 10px; margin: 0 0 var(--sp-4); padding-bottom: var(--sp-3); border-bottom: 1px solid var(--rule-soft); font-family: var(--font-display); font-size: 1.5rem; font-weight: 600; letter-spacing: -0.02em; }
.mc-flag { font-size: 1.3rem; line-height: 1; }
.mc-supplier__group + .mc-supplier__group { margin-top: var(--sp-4); }
.mc-supplier__group h4 { margin: 0 0 var(--sp-2); font-family: var(--font-caps); font-size: var(--fs-eyebrow); font-weight: 700; letter-spacing: var(--track-wide); text-transform: uppercase; color: var(--vroom-accent); }
.mc-links { display: grid; gap: 6px; margin: 0; padding: 0; list-style: none; }
.mc-link a, .mc-link div { display: block; padding: var(--sp-2) var(--sp-3); border: 1px solid var(--rule-soft); border-radius: 11px; background: var(--vroom-surface-muted); text-decoration: none; color: inherit; transition: border-color var(--t-fast); }
.mc-link a:hover { border-color: color-mix(in srgb, var(--vroom-accent) 55%, var(--rule)); }
.mc-link strong { display: block; font-size: 0.86rem; font-weight: 700; }
.mc-link a strong { color: var(--vroom-accent); }
.mc-link__arrow { font-size: 0.8em; }
.mc-link__note { display: block; margin-top: 3px; color: var(--ink-soft); font-size: 0.74rem; line-height: 1.35; }

.mc-supplier__reg .mc-reg__headline { margin: 0 0 var(--sp-2); color: var(--ink-soft); font-size: 0.82rem; line-height: 1.45; }
.mc-reg__steps { counter-reset: reg; margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.mc-reg__steps li { counter-increment: reg; position: relative; padding-left: 1.8rem; color: var(--ink-soft); font-size: 0.8rem; line-height: 1.4; }
.mc-reg__steps li::before { content: counter(reg); position: absolute; left: 0; top: 0; width: 1.2rem; text-align: center; font-family: var(--font-mono); font-size: 0.7rem; font-weight: 700; color: var(--vroom-accent); }
.mc-reg__cost { margin: var(--sp-2) 0 0; color: var(--vroom-accent); font-family: var(--font-mono); font-size: 0.76rem; font-weight: 700; }

/* --- CTA --- */
.mc-cta {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--sp-4);
  width: min(calc(100% - 2 * var(--gutter)), var(--mc-max));
  margin: clamp(2.5rem, 6vw, 4.5rem) auto 0;
  padding: clamp(1.5rem, 4vw, 2.75rem);
  border-radius: 22px;
  background: radial-gradient(circle at 88% 15%, rgba(255, 90, 31, 0.22), transparent 45%), var(--vroom-surface);
  border: 1px solid var(--rule-soft);
}
.mc-cta .eyebrow { color: var(--vroom-accent); }
.mc-cta h2 { margin: var(--sp-2) 0 0; font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 500; letter-spacing: -0.03em; line-height: 1; }

@media (max-width: 860px) {
  .mc-chapter__body { grid-template-columns: 1fr; }
  .mc-suppliers { grid-template-columns: 1fr; }
  .mc-chapter__num { font-size: clamp(5rem, 22vw, 9rem); top: 0; opacity: 0.8; }
}
@media (max-width: 680px) {
  .mc-rail { top: 54px; }
  .mc-steps li { padding-left: 2.5rem; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }