/* ─── MixedMaterials · The Roadmap ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --black:   #080808;
  --off-blk: #111110;
  --cream:   #f0ebe3;
  --cream-d: #b8b2aa;
  --green:   #192e23;
  --gold:    #b89155;
  --gold-lt: #d4aa6e;
  --muted:   #7a7268;
  --border:  rgba(255,255,255,0.07);
  --serif:   'Cormorant Garamond', Georgia, serif;
  --sans:    'Jost', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--black);
  color: var(--cream);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ── Progress Bar ── */
#rm-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: var(--gold);
  z-index: 9999;
  transition: width 0.15s linear;
}

/* ── Nav ── */
#rm-nav {
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0 3rem;
  height: 70px;
  background: rgba(8,8,8,0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s;
}

#rm-nav.scrolled { border-bottom-color: var(--border); }

.rm-nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.rm-nav-mark {
  width: 34px;
  height: 34px;
  background: var(--green);
  border: 1px solid var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.rm-nav-name {
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 400;
  color: var(--cream);
  letter-spacing: 0.04em;
}

.rm-chapter-pills {
  display: flex;
  gap: 0.2rem;
  flex: 1;
  justify-content: center;
}

.rm-pill {
  padding: 0.28rem 0.7rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.22s;
  white-space: nowrap;
}

.rm-pill:hover { color: var(--cream); border-color: rgba(255,255,255,0.2); }
.rm-pill.active { background: var(--gold); color: var(--black); border-color: var(--gold); font-weight: 500; }

.rm-nav-cta {
  flex-shrink: 0;
  padding: 0.45rem 1.25rem;
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--sans);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  transition: all 0.22s;
}

.rm-nav-cta:hover { background: var(--gold); color: var(--black); }

/* ── Hero ── */
.rm-hero {
  max-width: 900px;
  margin: 0 auto;
  padding: 7rem 3rem 5rem;
}

.rm-eyebrow {
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
}

.rm-hero h1 {
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 300;
  line-height: 1.0;
  color: var(--cream);
  letter-spacing: -0.01em;
  margin-bottom: 1.75rem;
}

.rm-hero h1 em {
  font-style: italic;
  color: var(--gold);
}

.rm-hero-body {
  max-width: 560px;
  font-size: 1rem;
  color: var(--cream-d);
  line-height: 1.8;
  margin-bottom: 3rem;
}

.rm-stats {
  display: flex;
  align-items: center;
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 2rem 0;
}

.rm-stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0 3rem 0 0;
}

.rm-stat:last-child { padding-right: 0; }

.rm-stat-div {
  width: 1px;
  height: 40px;
  background: var(--border);
  margin-right: 3rem;
}

.rm-stat-val {
  font-family: var(--serif);
  font-size: 1.9rem;
  font-weight: 300;
  color: var(--cream);
  letter-spacing: 0.01em;
  line-height: 1;
}

.rm-stat-lbl {
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── Marquee ── */
.rm-marquee-wrap {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  background: var(--off-blk);
  margin-bottom: 0;
}

.rm-marquee-track {
  display: flex;
  align-items: center;
  gap: 0;
  white-space: nowrap;
  animation: marquee 40s linear infinite;
  width: max-content;
}

.rm-marquee-track span {
  font-family: var(--serif);
  font-size: 0.9rem;
  font-weight: 300;
  font-style: italic;
  color: var(--muted);
  padding: 0 1.2rem;
  letter-spacing: 0.04em;
}

.rm-marquee-track .rm-dot {
  color: var(--gold);
  padding: 0;
  font-style: normal;
  font-size: 0.5rem;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ── Chapter Index ── */
.rm-index {
  max-width: 900px;
  margin: 0 auto;
  padding: 5rem 3rem;
  border-bottom: 1px solid var(--border);
}

.rm-index-title {
  font-family: var(--serif);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 2rem;
}

.rm-index-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.rm-index-card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.5rem 1.75rem;
  background: var(--black);
  text-decoration: none;
  transition: background 0.22s;
}

.rm-index-card:hover { background: rgba(184,145,85,0.05); }

.rm-index-num {
  font-size: 0.58rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

.rm-index-name {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--cream);
  line-height: 1.25;
}

.rm-index-range {
  font-size: 0.62rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin-top: auto;
  padding-top: 0.5rem;
}

/* ── Chapter Section ── */
.rm-chapter {
  max-width: 900px;
  margin: 0 auto;
  padding: 6rem 3rem;
  border-bottom: 1px solid var(--border);
}

.rm-ch-header {
  margin-bottom: 3.5rem;
}

.rm-ch-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.rm-ch-eyebrow {
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

.rm-ch-steps {
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.rm-ch-title {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 300;
  line-height: 1.05;
  color: var(--cream);
  letter-spacing: -0.01em;
  margin-bottom: 1.25rem;
}

.rm-ch-title em {
  font-style: italic;
  color: var(--gold);
}

.rm-ch-intro {
  max-width: 540px;
  font-size: 0.95rem;
  color: var(--cream-d);
  line-height: 1.8;
}

/* ── Steps ── */
.rm-steps {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.rm-step {
  border-bottom: 1px solid var(--border);
}

.rm-step:first-child {
  border-top: 1px solid var(--border);
}

.rm-step[open] {
  background: rgba(255,255,255,0.015);
}

.rm-step-hd {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  padding: 1.25rem 0;
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: opacity 0.2s;
}

.rm-step-hd::-webkit-details-marker { display: none; }
.rm-step-hd::marker { display: none; }

.rm-step-hd:hover { opacity: 0.8; }

.rm-step-num {
  font-family: var(--serif);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--gold);
  opacity: 0.55;
  min-width: 1.8rem;
  flex-shrink: 0;
  letter-spacing: 0.04em;
}

.rm-step[open] .rm-step-num { opacity: 1; }

.rm-step-name {
  font-family: var(--sans);
  font-size: 0.92rem;
  font-weight: 300;
  color: var(--cream);
  flex: 1;
  letter-spacing: 0.01em;
}

.rm-step-tag {
  font-family: var(--serif);
  font-style: italic;
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 300;
  margin-left: 0.4rem;
}

.rm-step-arr {
  color: var(--muted);
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: transform 0.22s, color 0.22s;
}

.rm-step[open] .rm-step-arr {
  transform: rotate(90deg);
  color: var(--gold);
}

.rm-step-body {
  padding: 0 0 1.5rem 3.3rem;
}

.rm-step-body p {
  font-size: 0.9rem;
  color: var(--cream-d);
  line-height: 1.8;
  max-width: 560px;
}

/* ── Outro ── */
.rm-outro {
  text-align: center;
  padding: 7rem 3rem 6rem;
  background: var(--off-blk);
  border-bottom: 1px solid var(--border);
}

.rm-outro-quote {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 300;
  font-style: italic;
  color: var(--cream);
  line-height: 1.4;
  margin-bottom: 3rem;
}

.rm-cta {
  display: inline-block;
  padding: 1rem 3rem;
  background: var(--gold);
  color: var(--black);
  font-family: var(--sans);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  transition: background 0.22s, opacity 0.22s;
}

.rm-cta:hover { background: var(--gold-lt); }

/* ── Footer ── */
.rm-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2rem 3rem;
  border-top: 1px solid var(--border);
}

.rm-footer-brand {
  font-family: var(--serif);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.rm-footer-loc {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.rm-footer-back {
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  text-decoration: none;
  transition: opacity 0.2s;
}

.rm-footer-back:hover { opacity: 0.7; }

/* ── Responsive ── */
@media (max-width: 960px) {
  #rm-nav { padding: 0 2rem; gap: 1rem; }
  .rm-chapter-pills { display: none; }
  .rm-hero, .rm-index, .rm-chapter { padding-left: 2rem; padding-right: 2rem; }
  .rm-index-grid { grid-template-columns: repeat(2, 1fr); }
  .rm-footer { padding: 1.5rem 2rem; }
}

@media (max-width: 640px) {
  #rm-nav { padding: 0 1.25rem; }
  .rm-nav-cta { display: none; }
  .rm-hero { padding: 4rem 1.5rem 3rem; }
  .rm-index { padding: 3rem 1.5rem; }
  .rm-index-grid { grid-template-columns: 1fr; }
  .rm-chapter { padding: 4rem 1.5rem; }
  .rm-stats { flex-wrap: wrap; gap: 1.5rem; }
  .rm-stat { padding-right: 0; }
  .rm-stat-div { display: none; }
  .rm-step-hd { gap: 1rem; }
  .rm-step-body { padding-left: 2.8rem; }
  .rm-outro { padding: 4rem 1.5rem; }
  .rm-footer { flex-direction: column; gap: 0.75rem; text-align: center; padding: 1.5rem; }
}