/* ==========================================================================
   Toyota's Million-Mile Warranty — Raghu-nomics
   Design language: modern Japanese editorial — washi paper, sumi ink,
   shu vermillion, indigo, gold leaf. Motion: enso brush draws, seigaiha
   waves, falling sakura, count-up numerics, scroll-revealed charts.
   ========================================================================== */

:root {
  --washi: #f4efe4;
  --washi-warm: #ede5d3;
  --paper-line: rgba(28, 24, 20, 0.08);
  --sumi: #1b1a17;
  --sumi-soft: #33312c;
  --indigo: #16233a;
  --indigo-deep: #0d1626;
  --indigo-soft: #1f3352;
  --shu: #c8401f;
  --shu-bright: #e2532c;
  --gold: #b78a3f;
  --gold-bright: #d9b46a;
  --cream: #f7f2e7;
  --line-on-dark: rgba(247, 242, 231, 0.18);

  --serif: "Shippori Mincho", "Noto Serif JP", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: "Zen Kaku Gothic New", "Hiragino Kaku Gothic ProN", "Helvetica Neue", Arial, sans-serif;

  --max: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; width: 100%; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--washi);
  color: var(--sumi);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  margin: 0;
  letter-spacing: 0.01em;
}

.eyebrow {
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--shu);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-weight: 600;
}

.eyebrow .jp {
  font-family: var(--serif);
  letter-spacing: 0.1em;
  font-size: 1rem;
  color: inherit;
  opacity: 0.85;
}

.section-wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
}

/* ---------- scroll progress ---------- */
.progress-rail {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 100%;
  z-index: 200;
  background: transparent;
}
.progress-rail::before {
  content: "";
  display: block;
  height: 100%;
  width: var(--scroll, 0%);
  background: linear-gradient(90deg, var(--shu), var(--gold-bright));
  transition: width 60ms linear;
}

/* ---------- nav ---------- */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 150;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem clamp(1.25rem, 4vw, 3rem);
  background: rgba(244, 239, 228, 0.72);
  backdrop-filter: blur(10px) saturate(1.2);
  -webkit-backdrop-filter: blur(10px) saturate(1.2);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.site-nav.scrolled {
  border-bottom-color: var(--paper-line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--sumi);
}
.brand svg { width: 30px; height: 30px; }
.brand-text {
  font-family: var(--serif);
  font-size: 0.98rem;
  line-height: 1.1;
}
.brand-text b { display: block; font-size: 1.02rem; }
.brand-text span { font-size: 0.68rem; letter-spacing: 0.14em; color: var(--sumi-soft); text-transform: uppercase; }

.nav-links {
  display: flex;
  gap: 1.9rem;
  list-style: none;
  margin: 0; padding: 0;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
}
.nav-links a {
  text-decoration: none;
  color: var(--sumi-soft);
  position: relative;
  padding-bottom: 4px;
  transition: color 0.25s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--shu);
  transition: right 0.3s var(--ease);
}
.nav-links a:hover { color: var(--shu); }
.nav-links a:hover::after { right: 0; }

.nav-cta {
  border: 1px solid var(--sumi);
  padding: 0.5rem 1.05rem;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--sumi);
  transition: all 0.3s var(--ease);
  white-space: nowrap;
}
.nav-cta:hover { background: var(--sumi); color: var(--washi); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 34px; height: 26px;
  position: relative;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 1.5px;
  background: var(--sumi);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle span { top: 50%; transform: translateY(-50%); }
.nav-toggle span::before { top: -8px; }
.nav-toggle span::after { top: 8px; }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { top: 0; transform: rotate(45deg); }
.nav-toggle.open span::after { top: 0; transform: rotate(-45deg); }

/* ---------- side scroll-spy dots ---------- */
.side-dots {
  position: fixed;
  right: 1.6rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 120;
  display: flex;
  flex-direction: column;
  gap: 1.05rem;
}
.side-dots a {
  width: 9px; height: 9px;
  border-radius: 50%;
  border: 1px solid var(--sumi-soft);
  display: block;
  position: relative;
  opacity: 0.55;
  transition: all 0.3s var(--ease);
}
.side-dots a::before {
  content: attr(data-label);
  position: absolute;
  right: 130%;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  background: var(--sumi);
  color: var(--washi);
  padding: 0.3rem 0.6rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s;
}
.side-dots a:hover::before { opacity: 1; }
.side-dots a.active {
  background: var(--shu);
  border-color: var(--shu);
  opacity: 1;
  transform: scale(1.25);
}
@media (max-width: 900px) { .side-dots { display: none; } }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: radial-gradient(120% 90% at 50% 0%, var(--indigo-soft) 0%, var(--indigo) 46%, var(--indigo-deep) 100%);
  color: var(--washi);
  overflow: hidden;
}
.hero-noise {
  position: absolute; inset: 0;
  opacity: 0.05;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  mix-blend-mode: overlay;
  pointer-events: none;
}
.hero-waves {
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  width: 100%;
  z-index: 1;
  opacity: 0.5;
}
.hero-embers {
  position: absolute; inset: 0;
  pointer-events: none;
  z-index: 1;
}
.ember {
  position: absolute;
  bottom: -10px;
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--gold-bright);
  opacity: 0;
  animation: rise linear infinite;
  box-shadow: 0 0 6px 1px rgba(217, 180, 106, 0.6);
}
@keyframes rise {
  0% { transform: translateY(0) translateX(0); opacity: 0; }
  10% { opacity: 0.9; }
  90% { opacity: 0.5; }
  100% { transform: translateY(-100vh) translateX(var(--drift, 20px)); opacity: 0; }
}

.hero-inner {
  position: relative;
  z-index: 3;
  max-width: var(--max);
  margin: 0 auto;
  padding: 8.5rem clamp(1.25rem, 4vw, 3rem) 7rem;
  width: 100%;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.74rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--gold-bright);
  margin-bottom: 1.6rem;
  opacity: 0;
}
.hero-kicker .rule { width: 34px; height: 1px; background: var(--gold-bright); }

.hero-title {
  font-size: clamp(2.6rem, 6.6vw, 5.4rem);
  line-height: 1.04;
  font-weight: 600;
  margin-bottom: 1.4rem;
  max-width: 16ch;
}
.hero-title .line {
  display: block;
  overflow: hidden;
}
.hero-title .line span {
  display: inline-block;
  transform: translateY(110%);
  animation: line-up 1s var(--ease) forwards;
}
@keyframes line-up { to { transform: translateY(0); } }

.hero-title em {
  font-style: normal;
  color: var(--shu-bright);
}

.hero-sub {
  font-family: var(--serif);
  font-size: clamp(1.55rem, 2.4vw, 1.9rem);
  color: var(--gold-bright);
  margin-bottom: 1.15rem;
  opacity: 0;
}

.hero-lede {
  max-width: 46ch;
  font-size: 1.03rem;
  color: rgba(247, 242, 231, 0.82);
  margin-bottom: 2.6rem;
  opacity: 0;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  opacity: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.7rem;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-radius: 2px;
  transition: all 0.35s var(--ease);
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--shu);
  color: var(--washi);
  box-shadow: 0 8px 30px -10px rgba(200, 64, 31, 0.6);
}
.btn-primary:hover { background: var(--shu-bright); transform: translateY(-2px); box-shadow: 0 12px 34px -8px rgba(200, 64, 31, 0.75); }
.btn-ghost {
  border-color: rgba(247, 242, 231, 0.4);
  color: var(--washi);
}
.btn-ghost:hover { border-color: var(--gold-bright); color: var(--gold-bright); }
.btn-dark {
  border-color: var(--sumi);
  color: var(--sumi);
}
.btn-dark:hover { background: var(--sumi); color: var(--washi); }

.hero-stats {
  position: relative;
  z-index: 3;
  border-top: 1px solid var(--line-on-dark);
  margin-top: 4.2rem;
  padding-top: 2rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  opacity: 0;
}
.hero-stat b {
  display: block;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  color: var(--washi);
}
.hero-stat span {
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: rgba(247, 242, 231, 0.6);
  text-transform: uppercase;
}
@media (max-width: 760px) {
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

.scroll-cue {
  position: absolute;
  bottom: 2.2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(247, 242, 231, 0.6);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.scroll-cue .enso {
  width: 22px; height: 22px;
  animation: spin 8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ==========================================================================
   SECTION SHELL
   ========================================================================== */
section { position: relative; }

.chapter {
  padding: clamp(4.5rem, 9vw, 8rem) 0;
}
.chapter.on-dark {
  background: var(--indigo);
  color: var(--washi);
}
.chapter.on-cream { background: var(--cream); }
.chapter-divider-in { border-top: 1px solid var(--paper-line); }

.chapter-head {
  max-width: 720px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.chapter-num {
  font-family: var(--serif);
  font-size: 0.95rem;
  color: var(--shu);
  letter-spacing: 0.1em;
}
.on-dark .chapter-num { color: var(--gold-bright); }
.chapter-title {
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  margin: 0.5rem 0 1rem;
  line-height: 1.15;
}
.chapter-kicker-jp {
  font-family: var(--serif);
  font-size: 1.3rem;
  color: var(--sumi-soft);
  opacity: 0.55;
  display: block;
  margin-bottom: 0.3rem;
}
.on-dark .chapter-kicker-jp { color: var(--washi); opacity: 0.4; }
.chapter-desc {
  font-size: 1.02rem;
  color: var(--sumi-soft);
  max-width: 60ch;
}
.on-dark .chapter-desc { color: rgba(247, 242, 231, 0.75); }

/* reveal-on-scroll */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }

/* ==========================================================================
   KPI STAT CARDS (Chapter 1)
   ========================================================================== */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--paper-line);
  border: 1px solid var(--paper-line);
}
.kpi-card {
  background: var(--washi);
  padding: 2.2rem 1.7rem;
  position: relative;
  overflow: hidden;
}
.kpi-card::before {
  content: attr(data-mark);
  position: absolute;
  top: 0.6rem; right: 0.9rem;
  font-family: var(--serif);
  font-size: 2.6rem;
  color: var(--sumi);
  opacity: 0.05;
}
.kpi-figure {
  font-family: var(--serif);
  font-size: clamp(2rem, 3vw, 2.5rem);
  color: var(--shu);
  margin-bottom: 0.4rem;
  display: flex;
  align-items: baseline;
  gap: 0.15rem;
}
.kpi-label {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--sumi-soft);
  margin-bottom: 0.6rem;
}
.kpi-note { font-size: 0.86rem; color: var(--sumi-soft); opacity: 0.85; }
@media (max-width: 900px) { .kpi-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .kpi-grid { grid-template-columns: 1fr; } }

/* chart bars used across sections */
.bar-chart { display: flex; flex-direction: column; gap: 1.1rem; }
.bar-row { display: grid; grid-template-columns: minmax(120px, 34%) 1fr auto; align-items: center; gap: 1rem; }
.bar-row .bl { font-size: 0.85rem; color: var(--sumi-soft); }
.on-dark .bar-row .bl { color: rgba(247,242,231,0.75); }
.bar-track {
  height: 10px;
  background: var(--paper-line);
  position: relative;
  border-radius: 1px;
  overflow: hidden;
}
.on-dark .bar-track { background: var(--line-on-dark); }
.bar-fill {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 0%;
  background: linear-gradient(90deg, var(--shu), var(--gold-bright));
  transition: width 1.4s var(--ease);
}
.bar-row .bv {
  font-family: var(--serif);
  font-size: 1rem;
  color: var(--sumi);
  min-width: 74px;
  text-align: right;
}
.on-dark .bar-row .bv { color: var(--washi); }

/* ==========================================================================
   CHAPTER 2 — TABS
   ========================================================================== */
.tabs-shell { display: grid; grid-template-columns: 260px 1fr; gap: 3rem; }
.tab-list {
  list-style: none;
  margin: 0; padding: 0;
  border-left: 1px solid var(--paper-line);
}
.tab-list button {
  all: unset;
  cursor: pointer;
  display: block;
  padding: 0.95rem 0 0.95rem 1.3rem;
  font-size: 0.98rem;
  color: var(--sumi-soft);
  border-left: 2px solid transparent;
  margin-left: -1px;
  transition: all 0.3s var(--ease);
  width: 100%;
}
.tab-list button small {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--shu);
  margin-bottom: 0.2rem;
  opacity: 0.8;
}
.tab-list button.active {
  color: var(--sumi);
  border-left-color: var(--shu);
  font-weight: 600;
}
.tab-panels { position: relative; min-height: 420px; }
.tab-panel {
  display: none;
  animation: fadeUp 0.55s var(--ease);
}
.tab-panel.active { display: block; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }

.tab-panel h3 { font-size: 1.5rem; margin-bottom: 0.6rem; }
.tab-panel .lede { color: var(--sumi-soft); margin-bottom: 1.6rem; max-width: 58ch; }
.tab-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 2.4rem; align-items: start; }
.bullet-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.85rem; }
.bullet-list li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.95rem;
  color: var(--sumi-soft);
}
.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 6px; height: 6px;
  background: var(--shu);
  transform: rotate(45deg);
}
.chart-card {
  background: var(--washi-warm);
  border: 1px solid var(--paper-line);
  padding: 1.6rem 1.5rem;
}
.chart-card .cc-title { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--shu); margin-bottom: 1.1rem; }

@media (max-width: 900px) {
  .tabs-shell { grid-template-columns: 1fr; gap: 1.5rem; }
  .tab-list { display: flex; overflow-x: auto; border-left: none; border-bottom: 1px solid var(--paper-line); gap: 0.5rem; }
  .tab-list button { border-left: none; border-bottom: 2px solid transparent; padding: 0.7rem 1rem; white-space: nowrap; margin-left: 0; }
  .tab-list button.active { border-bottom-color: var(--shu); }
  .tab-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   CHAPTER 3 — MECHANICS
   ========================================================================== */
.mech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--paper-line);
  border: 1px solid var(--paper-line);
  margin-bottom: 3rem;
}
.mech-card {
  background: var(--washi);
  padding: 2.2rem;
}
.mech-card h4 {
  font-size: 1.18rem;
  margin-bottom: 0.5rem;
}
.mech-card .mech-kicker {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--shu);
  margin-bottom: 0.5rem;
  display: block;
}
.mech-card p { color: var(--sumi-soft); font-size: 0.92rem; margin: 0.6rem 0 1.2rem; }

/* lego snap animation */
.lego-anim { display: flex; align-items: center; gap: 0.6rem; height: 70px; }
.lego-block {
  width: 46px; height: 46px;
  background: var(--indigo);
  position: relative;
  border-radius: 3px;
  transition: transform 1s var(--ease);
}
.lego-block::before {
  content: "";
  position: absolute;
  top: -8px; left: 50%;
  transform: translateX(-50%);
  width: 16px; height: 8px;
  background: var(--indigo);
  border-radius: 3px 3px 0 0;
}
.lego-block.gold { background: var(--shu); }
.lego-block.gold::before { background: var(--shu); }
.lego-anim.snapped .lego-block:nth-child(2) { transform: translateX(-14px); }
.lego-anim.snapped .lego-block:nth-child(3) { transform: translateX(-28px); }

/* parts comparison dots */
.dot-compare { display: flex; flex-direction: column; gap: 1.4rem; }
.dot-compare .dc-row .dc-label { font-size: 0.82rem; color: var(--sumi-soft); margin-bottom: 0.5rem; display: flex; justify-content: space-between; }
.dot-field { display: flex; flex-wrap: wrap; gap: 4px; }
.dot-field i {
  width: 6px; height: 6px;
  background: var(--paper-line);
  display: inline-block;
  transform: scale(0);
  transition: transform 0.4s var(--ease), background 0.4s;
}
.dot-field.on i { background: var(--shu); transform: scale(1); }

/* time value of money curve */
.tvm-wrap { position: relative; }
.tvm-svg path.curve {
  fill: none;
  stroke: var(--shu);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 620;
  stroke-dashoffset: 620;
  transition: stroke-dashoffset 1.8s var(--ease);
}
.tvm-svg.in path.curve { stroke-dashoffset: 0; }
.tvm-svg .grid-line { stroke: var(--paper-line); stroke-width: 1; }
.tvm-svg .axis-label { fill: var(--sumi-soft); font-size: 10px; font-family: var(--sans); }
.tvm-badge {
  position: absolute;
  opacity: 0;
  transition: opacity 0.6s var(--ease) 1.6s, transform 0.6s var(--ease) 1.6s;
  transform: translateY(8px);
}
.tvm-svg.in ~ .tvm-badge, .tvm-wrap.in .tvm-badge { opacity: 1; transform: translateY(0); }

/* ==========================================================================
   CHAPTER 4 — FIVE LAYERS (concentric rings)
   ========================================================================== */
.layers-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.rings-svg circle.ring {
  fill: none;
  stroke-width: 1.6;
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  transition: stroke-dashoffset 1.4s var(--ease);
  cursor: pointer;
}
.rings-svg.in circle.ring { stroke-dashoffset: 0; }
.rings-svg text.ring-num {
  font-family: var(--serif);
  fill: var(--washi);
  font-size: 13px;
  text-anchor: middle;
}
.layer-list { list-style: none; margin: 0; padding: 0; counter-reset: layer; }
.layer-list li {
  counter-increment: layer;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line-on-dark);
  cursor: pointer;
  transition: padding-left 0.3s var(--ease), opacity 0.3s;
  opacity: 0.6;
}
.layer-list li.active { opacity: 1; padding-left: 0.7rem; }
.layer-list li:first-child { padding-top: 0; }
.layer-list .ln {
  font-family: var(--serif);
  color: var(--gold-bright);
  font-size: 0.85rem;
  margin-right: 0.6rem;
}
.layer-list h4 { display: inline; font-size: 1.08rem; color: var(--washi); }
.layer-list p { margin: 0.5rem 0 0; font-size: 0.9rem; color: rgba(247,242,231,0.7); max-width: 46ch; }

/* ==========================================================================
   CHAPTER 5 — HAWAII GATEWAY
   ========================================================================== */
.gateway-wrap {
  position: relative;
  border: 1px solid var(--paper-line);
  background: var(--washi-warm);
  padding: clamp(2rem, 5vw, 4rem);
  overflow: hidden;
}
.gateway-svg { width: 100%; height: auto; }
.flow-line {
  fill: none;
  stroke: var(--shu);
  stroke-width: 1.6;
  stroke-dasharray: 8 7;
  animation: dash-flow 2.4s linear infinite;
  opacity: 0;
  transition: opacity 0.8s var(--ease);
}
.gateway-wrap.in .flow-line { opacity: 0.85; }
@keyframes dash-flow { to { stroke-dashoffset: -60; } }
.node-dot { fill: var(--indigo); }
.node-dot.hi { fill: var(--shu); }
.node-label { font-family: var(--sans); font-size: 11px; letter-spacing: 0.04em; fill: var(--sumi-soft); text-transform: uppercase; }
.node-label.hi { fill: var(--shu); font-weight: 600; }

/* ==========================================================================
   CHAPTER 6 — AUTO COIN
   ========================================================================== */
.coin-hero {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 3.5rem;
}
.coin-medallion { position: relative; display: flex; align-items: center; justify-content: center; }
.coin-medallion svg { width: 100%; max-width: 320px; }
.coin-medallion .spin-slow { animation: spin 40s linear infinite; transform-origin: 50% 50%; }

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.compare-table th, .compare-table td {
  border-bottom: 1px solid var(--line-on-dark);
  padding: 0.85rem 0.6rem;
  text-align: left;
}
.compare-table th { color: var(--gold-bright); font-weight: 500; font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; }
.compare-table td.hl { color: var(--washi); font-family: var(--serif); }
.compare-table tr td:first-child, .compare-table tr th:first-child { color: rgba(247,242,231,0.65); }

.commodity-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-on-dark);
  border: 1px solid var(--line-on-dark);
  margin: 2.5rem 0 3.5rem;
}
.commodity-card {
  background: var(--indigo-deep);
  padding: 1.8rem 1.4rem;
  text-align: center;
}
.commodity-card b {
  display: block;
  font-family: var(--serif);
  font-size: 1.5rem;
  color: var(--gold-bright);
}
.commodity-card span { font-size: 0.76rem; color: rgba(247,242,231,0.65); }
@media (max-width: 760px) { .commodity-grid { grid-template-columns: repeat(2, 1fr); } .coin-hero { grid-template-columns: 1fr; } }

.market-double {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 3.5rem;
}
.double-figure { text-align: center; }
.double-figure b {
  font-family: var(--serif);
  font-size: clamp(2.6rem, 5vw, 3.8rem);
  display: block;
  color: var(--washi);
}
.double-figure.after b { color: var(--gold-bright); }
.double-figure span { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: rgba(247,242,231,0.6); }
.double-arrow { display: flex; align-items: center; justify-content: center; }
.double-arrow svg { width: 46px; height: 46px; }

.contact-points .bar-row .bl { color: rgba(247,242,231,0.75); }

/* ==========================================================================
   DEDICATION / CLOSING
   ========================================================================== */
.closing {
  background: var(--indigo-deep);
  color: var(--washi);
  padding: clamp(5rem, 10vw, 8rem) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.petal { position: absolute; top: -20px; pointer-events: none; opacity: 0.85; }
.closing .enso-lg {
  width: 90px; height: 90px;
  margin: 0 auto 2.2rem;
}
.closing .enso-lg path {
  fill: none;
  stroke: var(--gold-bright);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  transition: stroke-dashoffset 2s var(--ease);
}
.closing .enso-lg.in path { stroke-dashoffset: 18; }

.closing-quote {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  max-width: 52ch;
  margin: 0 auto 1.8rem;
  line-height: 1.5;
  color: var(--washi);
}
.closing-meta {
  font-size: 0.85rem;
  color: rgba(247, 242, 231, 0.6);
  letter-spacing: 0.03em;
  margin-bottom: 3rem;
}
.closing-meta strong { color: var(--gold-bright); font-weight: 500; }

.closing-cta { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
footer {
  background: var(--sumi);
  color: rgba(247, 242, 231, 0.55);
  padding: 2.4rem clamp(1.25rem, 4vw, 3rem);
  font-size: 0.78rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
footer .fmark { display: flex; align-items: center; gap: 0.6rem; }
footer svg { width: 20px; height: 20px; opacity: 0.6; }
.to-top {
  color: rgba(247, 242, 231, 0.55);
  text-decoration: none;
  border: 1px solid rgba(247, 242, 231, 0.2);
  padding: 0.5rem 1rem;
  transition: all 0.3s;
}
.to-top:hover { color: var(--washi); border-color: var(--gold-bright); }

/* ==========================================================================
   MISC
   ========================================================================== */
.watermark-jp {
  position: absolute;
  font-family: var(--serif);
  font-size: clamp(9rem, 22vw, 20rem);
  color: var(--sumi);
  opacity: 0.035;
  line-height: 1;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  top: 0.5em;
}
.on-dark .watermark-jp { color: var(--washi); opacity: 0.045; }
.watermark-jp.right { right: -0.1em; }
.watermark-jp.left { left: -0.1em; }

.section-inner-rel { position: relative; z-index: 1; }

/* count-up number spans */
.cu { font-variant-numeric: tabular-nums; }

/* mobile nav drawer */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-cta { display: none; }
  .mobile-drawer {
    position: fixed;
    inset: 0;
    background: var(--indigo);
    z-index: 140;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 1.6rem;
    padding: 2rem 2.5rem;
    transform: translateX(100%);
    transition: transform 0.45s var(--ease);
  }
  .mobile-drawer.open { transform: translateX(0); }
  .mobile-drawer a {
    color: var(--washi);
    text-decoration: none;
    font-family: var(--serif);
    font-size: 1.7rem;
  }
  .mobile-drawer .md-pdf {
    margin-top: 1rem;
    font-family: var(--sans);
    font-size: 0.9rem;
    color: var(--gold-bright);
    border: 1px solid var(--gold-bright);
    padding: 0.7rem 1.3rem;
  }
}
@media (min-width: 901px) { .mobile-drawer { display: none; } }

@media (max-width: 760px) {
  .layers-wrap { grid-template-columns: 1fr; }
  .market-double { grid-template-columns: 1fr; }
  .double-arrow svg { transform: rotate(90deg); }
  .mech-grid { grid-template-columns: 1fr; }
  .coin-hero { grid-template-columns: 1fr; }
}