/* ============================================================
   AMPM FUTURES: "The Development Memorandum"
   Ink & paper editorial system · Fraunces + Archivo
   ============================================================ */

:root {
  --paper: #F6F3EC;
  --paper-deep: #EFEAE0;
  --stone: #E7E1D3;
  --ink: #191510;
  --ink-soft: #524B3F;
  --ink-faint: #6E6454;
  --forest: #18332A;
  --forest-deep: #0F211B;
  --verdant: #2E6B4F;
  --verdant-bright: #3E8A66;
  --bronze: #7A5E2C;
  --bronze-soft: #C9B68A;
  --umber: #64563D;
  --cream: #EFE8D8;
  --rule: rgba(25, 21, 16, 0.16);
  --rule-soft: rgba(25, 21, 16, 0.09);
  --rule-cream: rgba(239, 232, 216, 0.22);

  --font-display: "Fraunces", Georgia, serif;
  --font-ui: "Archivo", Helvetica, Arial, sans-serif;

  --size-hero: clamp(2.5rem, 5.4vw + 0.6rem, 4.5rem);
  --size-h2: clamp(1.85rem, 3vw + 0.5rem, 3rem);
  --size-h3: clamp(1.3rem, 1.6vw + 0.5rem, 1.75rem);
  --size-body: 1.0625rem;

  --space-section: clamp(4.5rem, 9vw, 8.5rem);
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --max: 1200px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

html, body { overflow-x: clip; }

body {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-size: var(--size-body);
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Paper grain overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='table' tableValues='0 0.04'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--verdant); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--forest); }

::selection { background: var(--bronze-soft); color: var(--ink); }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--forest); color: var(--paper);
  padding: 0.6rem 1rem; z-index: 10001;
  font-family: var(--font-ui); font-size: 0.85rem;
}
.skip-link:focus { left: 0; }

/* Visually hidden, screen-reader accessible */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
}

/* Visible keyboard focus everywhere */
:focus-visible {
  outline: 2px solid var(--verdant);
  outline-offset: 2px;
}

/* ---------- Typography helpers ---------- */
.eyebrow {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bronze);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.1rem;
}
.eyebrow::before {
  content: "";
  width: 2rem; height: 1px;
  background: var(--bronze);
  flex: none;
}
.eyebrow.no-dash::before { display: none; }

.sec-num {
  font-family: var(--font-ui);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
}

h1, h2, h3 { font-weight: 480; line-height: 1.12; letter-spacing: -0.012em; }
h1 { font-size: var(--size-hero); font-variation-settings: "opsz" 144; }
h2 { font-size: var(--size-h2); font-variation-settings: "opsz" 100; }
h3 { font-size: var(--size-h3); }

.lead {
  font-size: clamp(1.15rem, 1.3vw + 0.6rem, 1.4rem);
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 46ch;
}

em.accent { font-style: italic; color: var(--verdant); }

/* Footnote system */
sup.fn {
  font-family: var(--font-ui);
  font-size: 0.62em;
  color: var(--bronze);
  font-weight: 600;
  margin-left: 1px;
}
.footnotes {
  margin-top: 2.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-family: var(--font-ui);
  font-size: 0.74rem;
  line-height: 1.7;
  color: var(--ink-faint);
  max-width: 62ch;
}
.footnotes span { display: block; }
.footnotes b { color: var(--bronze); font-weight: 600; margin-right: 0.35rem; }
.on-dark .footnotes { border-color: var(--rule-cream); color: rgba(239,232,216,0.55); }

/* ---------- Layout ---------- */
.wrap { max-width: var(--max); margin: 0 auto; padding-inline: var(--gutter); }
section { padding-block: var(--space-section); position: relative; }

.sec-head { margin-bottom: clamp(2.5rem, 5vw, 4rem); max-width: 56rem; }
.sec-head h2 { margin-bottom: 1rem; }
.sec-head .lead { max-width: 56ch; }

/* ---------- Header / nav ---------- */
.topline {
  background: var(--forest-deep);
  color: var(--cream);
  font-family: var(--font-ui);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.topline .wrap {
  display: flex; justify-content: space-between; align-items: center;
  padding-block: 0.45rem;
}
.topline span:last-child { color: var(--bronze-soft); }
@media (max-width: 640px) { .topline { display: none; } }

header.site {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(246, 243, 236, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: 0.85rem;
  gap: 1rem;
}
.brand {
  display: flex; align-items: center; gap: 0.7rem;
  text-decoration: none; color: var(--ink);
}
.brand img { height: 2.3rem; width: auto; }
.brand .word {
  font-family: var(--font-display);
  font-size: 1.32rem;
  font-weight: 540;
  letter-spacing: 0.01em;
  line-height: 1;
}
.brand .word small {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.56rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--bronze);
  margin-top: 0.28rem;
  white-space: nowrap;
}
@media (max-width: 480px) {
  .brand .word small { font-size: 0.5rem; letter-spacing: 0.16em; }
}

nav.links { display: flex; align-items: center; gap: 1.9rem; }
nav.links a {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink-soft);
  padding-block: 0.4rem;
  position: relative;
}
nav.links a:hover { color: var(--ink); }
nav.links a::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 0; height: 1.5px;
  background: var(--bronze);
  transition: width 0.28s var(--ease-out);
}
nav.links a:hover::after, nav.links a[aria-current="page"]::after { width: 100%; }
nav.links a[aria-current="page"] { color: var(--ink); }

.nav-cta { margin-left: 0.4rem; }
nav.links a.nav-cta { color: var(--cream); }
nav.links a.nav-cta:hover { color: #fff; }

/* Mobile nav */
.menu-btn {
  display: none;
  background: none; border: 1px solid var(--rule);
  font-family: var(--font-ui); font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.55rem 0.9rem; cursor: pointer; color: var(--ink);
}
@media (max-width: 920px) {
  .menu-btn { display: block; }
  nav.links {
    position: fixed; inset: 0; top: 0;
    background: var(--paper);
    flex-direction: column; justify-content: center;
    gap: 2.2rem;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.4s var(--ease-out), visibility 0s 0.4s;
    z-index: 2000;
  }
  nav.links.open { transform: translateX(0); visibility: visible; transition: transform 0.4s var(--ease-out); }
  nav.links a { font-size: 1.05rem; }
  .nav-close {
    position: absolute; top: 1.2rem; right: var(--gutter);
    background: none; border: 1px solid var(--rule);
    font-family: var(--font-ui); font-size: 0.78rem; font-weight: 600;
    letter-spacing: 0.12em; text-transform: uppercase;
    padding: 0.55rem 0.9rem; cursor: pointer; color: var(--ink);
  }
}
@media (min-width: 921px) { .nav-close { display: none; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-ui);
  font-size: 0.84rem; font-weight: 600;
  letter-spacing: 0.07em; text-transform: uppercase;
  text-decoration: none;
  padding: 0.95rem 1.5rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.25s var(--ease-out), color 0.25s var(--ease-out), border-color 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}
.btn .arr { transition: transform 0.25s var(--ease-out); }
.btn:hover .arr { transform: translateX(4px); }

.btn-primary { background: var(--forest); color: var(--cream); }
.btn-primary:hover { background: var(--verdant); color: #fff; }

.btn-ghost { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }

.on-dark .btn-primary { background: var(--cream); color: var(--forest-deep); }
.on-dark .btn-primary:hover { background: #fff; }
.on-dark .btn-ghost { border-color: var(--cream); color: var(--cream); }
.on-dark .btn-ghost:hover { background: var(--cream); color: var(--forest-deep); }

.btn-sm { padding: 0.62rem 1.05rem; font-size: 0.76rem; }

.text-link {
  font-family: var(--font-ui);
  font-size: 0.84rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--verdant); text-decoration: none;
  display: inline-flex; align-items: center; gap: 0.45rem;
}
.text-link .arr { transition: transform 0.25s var(--ease-out); }
.text-link:hover .arr { transform: translateX(4px); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: clip;
  padding-block: clamp(4rem, 8vw, 7.5rem) clamp(4rem, 7vw, 6rem);
  /* ledger rules backdrop */
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0px, transparent 47px,
    var(--rule-soft) 47px, var(--rule-soft) 48px
  );
}
.hero .wrap {
  display: grid;
  grid-template-columns: minmax(0, 7.5fr) minmax(0, 4.5fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero h1 { margin: 1.1rem 0 1.5rem; max-width: 16ch; }
.hero h1 .ink-it { font-style: italic; color: var(--verdant); }
.hero .lead { margin-bottom: 2.4rem; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }

.hero-art {
  position: relative;
  display: flex; justify-content: center;
  min-height: 380px;
}
.hero-art img.feather {
  height: clamp(360px, 44vw, 560px);
  width: auto;
  filter: saturate(0.92);
  will-change: transform;
}
.hero-art .script {
  position: absolute;
  right: 4%;
  top: 4%;
  width: clamp(90px, 9vw, 130px);
  opacity: 0.85;
}
.hero-art .art-caption {
  position: absolute;
  bottom: -0.4rem; right: 0;
  font-family: var(--font-ui);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  writing-mode: vertical-rl;
}
@media (max-width: 880px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-art { order: -1; min-height: 0; justify-content: flex-end; margin-top: -1rem; }
  .hero-art img.feather { height: 220px; opacity: 0.9; }
  .hero-art .script { width: 70px; right: 38%; top: 8%; }
  .hero-art .art-caption { display: none; }
}

/* ---------- Credibility strip ---------- */
.cred {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--paper-deep);
  padding-block: 0;
}
.cred .stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.cred .stat {
  padding: 1.9rem 1.4rem 1.7rem;
  border-left: 1px solid var(--rule);
}
.cred .stat:first-child { border-left: none; padding-left: 0; }
.stat .num {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 2.6vw + 0.4rem, 2.9rem);
  font-weight: 500;
  line-height: 1.05;
  font-variant-numeric: tabular-nums;
  color: var(--forest);
}
.stat .num em { font-style: normal; color: var(--bronze); }
.stat .lbl {
  font-family: var(--font-ui);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin-top: 0.5rem;
  line-height: 1.5;
}
.partners-wall {
  border-top: 1px solid var(--rule);
  padding-top: 1.3rem;
}
.partners-wall .plbl {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 1.1rem;
}
.logo-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
}
.logo-cell {
  border-left: 1px solid var(--rule);
  padding: 0.2rem 1.2rem;
  min-height: 3.4rem;
  display: flex; flex-direction: column; justify-content: center; gap: 0.4rem;
}
.logo-cell:first-child { border-left: none; padding-left: 0; }
.logo-cell .lw-name {
  font-family: var(--font-display);
  font-size: 1.08rem; font-weight: 540;
  color: var(--umber);
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.logo-cell .lw-name small {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.58rem; font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  margin-top: 0.3rem;
  text-transform: none;
}
.logo-cell .lw-role {
  font-family: var(--font-ui);
  font-size: 0.6rem; font-weight: 600;
  letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--bronze);
}
@media (max-width: 760px) {
  .logo-row { grid-template-columns: 1fr 1fr; gap: 0; }
  .logo-cell {
    border-left: none;
    border-top: 1px solid var(--rule);
    padding: 0.9rem 0;
  }
  .logo-cell:nth-child(even) { border-left: 1px solid var(--rule); padding-left: 1.2rem; }
}
@media (max-width: 880px) {
  .cred .stats { grid-template-columns: repeat(2, 1fr); }
  .cred .stat:nth-child(3) { border-left: none; padding-left: 0; }
  .cred .stat { border-top: 1px solid var(--rule); }
  .cred .stat:nth-child(-n+2) { border-top: none; }
}

/* ---------- Problem blocks ---------- */
.prob-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
}
.prob {
  padding: 2.2rem 2rem 2.4rem 0;
  border-bottom: 1px solid var(--rule);
}
.prob + .prob { padding-left: 2rem; border-left: 1px solid var(--rule); }
.prob .pnum {
  font-family: var(--font-ui);
  font-size: 0.74rem; font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--bronze);
  display: block; margin-bottom: 1.4rem;
}
.prob h3 { font-size: 1.32rem; margin-bottom: 0.9rem; max-width: 17ch; }
.prob p { font-size: 0.98rem; color: var(--ink-soft); }
.prob .big {
  font-family: var(--font-display);
  font-size: 2.2rem; font-weight: 500;
  color: var(--forest);
  display: block;
  margin-bottom: 0.6rem;
}
@media (max-width: 880px) {
  .prob-grid { grid-template-columns: 1fr; }
  .prob + .prob { padding-left: 0; border-left: none; }
  .prob { padding-right: 0; }
}
.bridge {
  margin-top: 3rem;
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  font-style: italic;
  max-width: 38ch;
  color: var(--forest);
  line-height: 1.45;
}
.bridge b { font-weight: 600; font-style: normal; }

/* ---------- Dark (forest) sections ---------- */
.on-dark {
  background: var(--forest-deep);
  color: var(--cream);
  position: relative;
  overflow: clip;
}
.on-dark h2, .on-dark h3 { color: #F4EEDF; }
.on-dark .lead, .on-dark p { color: rgba(239, 232, 216, 0.78); }
.on-dark .eyebrow { color: var(--bronze-soft); }
.on-dark .eyebrow::before { background: var(--bronze-soft); }
.on-dark .watermark {
  position: absolute;
  right: -2%; top: 50%;
  transform: translateY(-50%) rotate(14deg);
  height: 130%;
  opacity: 0.07;
  pointer-events: none;
}

/* IPHM layer diagram */
.layers { max-width: 760px; margin-top: 1rem; counter-reset: layer; }
.layer {
  display: grid;
  grid-template-columns: 3.2rem 1fr;
  gap: 1.2rem;
  align-items: baseline;
  padding: 1.05rem 1.2rem;
  border: 1px solid var(--rule-cream);
  border-bottom: none;
  background: rgba(239, 232, 216, 0.025);
  transition: background 0.3s var(--ease-out), transform 0.3s var(--ease-out);
}
.layer:last-child { border-bottom: 1px solid var(--rule-cream); }
.layer:hover { background: rgba(239, 232, 216, 0.07); transform: translateX(6px); }
.layer .lno {
  font-family: var(--font-ui);
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--bronze-soft);
}
.layer .lname {
  font-family: var(--font-display);
  font-size: 1.12rem;
  color: #F4EEDF;
}
.layer .lname small {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: rgba(239, 232, 216, 0.6);
  margin-top: 0.25rem;
  line-height: 1.5;
}
.layer.crown {
  background: rgba(201, 182, 138, 0.1);
  border-color: rgba(201, 182, 138, 0.4);
}
.layers-caption {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(239,232,216,0.62);
  margin-top: 0.9rem;
}

/* Why-integration trio on dark */
.trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.4rem;
  margin-top: 3.4rem;
}
.trio h3 { font-size: 1.18rem; margin-bottom: 0.7rem; }
.trio p { font-size: 0.94rem; }
.trio .t-rule {
  width: 2.4rem; height: 2px;
  background: var(--bronze-soft);
  margin-bottom: 1.1rem;
}
@media (max-width: 880px) { .trio { grid-template-columns: 1fr; gap: 1.8rem; } }

/* ---------- Project cards ---------- */
.proj-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.6rem;
}
@media (max-width: 880px) { .proj-grid { grid-template-columns: 1fr; } }

.pcard {
  background: #FCFAF5;
  border: 1px solid var(--rule);
  padding: 1.9rem 1.9rem 1.6rem;
  display: flex; flex-direction: column;
  text-decoration: none; color: var(--ink);
  position: relative;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out), border-color 0.3s var(--ease-out);
}
.pcard:hover {
  transform: translateY(-4px);
  border-color: var(--bronze);
  box-shadow: 0 18px 40px -18px rgba(25, 21, 16, 0.25);
}
.pcard .country {
  font-family: var(--font-ui);
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--bronze);
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 1rem;
}
.pcard h3 { font-size: 1.42rem; margin-bottom: 0.65rem; max-width: 20ch; }
.pcard .pdesc { font-size: 0.95rem; color: var(--ink-soft); margin-bottom: 1.3rem; }
.pcard ul.pkeys {
  list-style: none;
  margin-bottom: 1.4rem;
  font-family: var(--font-ui);
  font-size: 0.86rem;
  color: var(--ink-soft);
}
.pcard ul.pkeys li {
  padding: 0.5rem 0;
  border-top: 1px solid var(--rule-soft);
}
.pcard ul.pkeys b { color: var(--ink); font-weight: 600; }
.pcard .prole {
  font-family: var(--font-ui);
  font-size: 0.74rem;
  color: var(--ink-faint);
  line-height: 1.55;
  margin-top: auto;
  padding-top: 0.9rem;
  border-top: 1px solid var(--rule-soft);
}
.pcard .pgo {
  position: absolute;
  top: 1.55rem; right: 1.7rem;
  font-size: 1.1rem;
  color: var(--bronze);
  transition: transform 0.25s var(--ease-out);
}
.pcard:hover .pgo { transform: translateX(4px); }

/* Stage tags & dots */
.stage {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-ui);
  font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--verdant);
  background: rgba(46, 107, 79, 0.09);
  border: 1px solid rgba(46, 107, 79, 0.25);
  padding: 0.4rem 0.7rem;
  border-radius: 99px;
  margin-bottom: 1.1rem;
  align-self: flex-start;
}
.dots { display: inline-flex; gap: 3px; }
.dots i {
  width: 6px; height: 6px; border-radius: 50%;
  background: rgba(46, 107, 79, 0.25);
}
.dots i.f { background: var(--verdant); }

/* Stage strip (detail pages) */
.stage-strip {
  display: flex; flex-wrap: wrap;
  gap: 0;
  border: 1px solid var(--rule);
  background: #FCFAF5;
  margin-block: 2rem 0;
}
.sstep {
  flex: 1 1 0;
  min-width: 150px;
  padding: 1rem 1.2rem;
  border-left: 1px solid var(--rule);
  font-family: var(--font-ui);
}
.sstep:first-child { border-left: none; }
.sstep .ss-state {
  font-size: 0.64rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase;
  display: block; margin-bottom: 0.3rem;
}
.sstep .ss-name { font-size: 0.86rem; font-weight: 600; color: var(--ink); }
.sstep.done .ss-state { color: var(--verdant); }
.sstep.now { background: rgba(46, 107, 79, 0.07); }
.sstep.now .ss-state { color: var(--bronze); }
.sstep.next .ss-state, .sstep.next .ss-name { color: var(--ink-faint); }

/* ---------- Audience paths ---------- */
.paths {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
}
@media (max-width: 880px) { .paths { grid-template-columns: 1fr; } }

/* About: founders 2-up on desktop, stacks on mobile */
.founder-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.6rem;
  max-width: 900px;
}
@media (max-width: 880px) { .founder-grid { grid-template-columns: 1fr; } }
.path {
  border: 1px solid var(--rule);
  border-top: 3px solid var(--forest);
  background: #FCFAF5;
  padding: 1.9rem 1.8rem 1.7rem;
  display: flex; flex-direction: column;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}
.path:hover { transform: translateY(-4px); box-shadow: 0 18px 40px -18px rgba(25,21,16,0.22); }
.path:nth-child(2) { border-top-color: var(--bronze); }
.path:nth-child(3) { border-top-color: var(--umber); }
.path h3 { font-size: 1.25rem; margin-bottom: 0.8rem; }
.path .pq {
  font-style: italic;
  color: var(--forest);
  margin-bottom: 0.7rem;
  font-size: 1.02rem;
}
.path p { font-size: 0.92rem; color: var(--ink-soft); margin-bottom: 1.4rem; }
.path .text-link { margin-top: auto; }

/* ---------- Process ---------- */
.steps {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
@media (max-width: 880px) { .steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.step {
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 1.8rem 1.6rem 2rem;
  position: relative;
}
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  font-family: var(--font-ui);
  font-size: 0.74rem; font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--bronze);
  display: block;
  margin-bottom: 1.2rem;
}
.step h3 { font-size: 1.3rem; margin-bottom: 0.7rem; }
.step p { font-size: 0.92rem; color: var(--ink-soft); }
.step .get {
  margin-top: 1.1rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--verdant);
  font-weight: 500;
  font-style: italic;
}

/* ---------- Founders band ---------- */
.founders {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
@media (max-width: 880px) { .founders { grid-template-columns: 1fr; } }
.founders .script-block {
  background: var(--stone);
  border: 1px solid var(--rule);
  padding: 2.6rem;
  display: flex; flex-direction: column; align-items: center; gap: 1rem;
}
.founders .script-block img { width: 150px; }
.founders .script-block .cap {
  font-family: var(--font-ui);
  font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink-faint);
  text-align: center;
  line-height: 1.8;
}

/* ---------- SDG / impact ---------- */
.sdgs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.2rem;
}
@media (max-width: 1020px) { .sdgs { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .sdgs { grid-template-columns: 1fr; } }
.sdg {
  border: 1px solid var(--rule);
  background: #FCFAF5;
  padding: 1.4rem 1.3rem;
}
.sdg .sdg-no {
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  background: var(--verdant);
  display: inline-block;
  padding: 0.3rem 0.55rem;
  margin-bottom: 0.9rem;
}
.sdg:nth-child(2) .sdg-no { background: var(--bronze); }
.sdg:nth-child(3) .sdg-no { background: var(--umber); }
.sdg:nth-child(4) .sdg-no { background: var(--forest); }
.sdg:nth-child(5) .sdg-no { background: #7A6A45; }
.sdg h3 { font-size: 1.02rem; margin-bottom: 0.5rem; }
.sdg p { font-family: var(--font-ui); font-size: 0.8rem; color: var(--ink-soft); line-height: 1.6; }

/* ---------- FAQ ---------- */
.faq { max-width: 800px; }
.faq details {
  border-bottom: 1px solid var(--rule);
}
.faq details:first-of-type { border-top: 1px solid var(--rule); }
.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex; justify-content: space-between; align-items: baseline; gap: 1.5rem;
  padding: 1.35rem 0.2rem;
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 500;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .ind {
  font-family: var(--font-ui);
  color: var(--bronze);
  font-size: 1rem;
  transition: transform 0.3s var(--ease-out);
  flex: none;
}
.faq details[open] summary .ind { transform: rotate(45deg); }
.faq .ans {
  padding: 0 0.2rem 1.5rem;
  color: var(--ink-soft);
  font-size: 0.98rem;
  max-width: 64ch;
}

/* ---------- CTA band ---------- */
.cta-band { text-align: left; }
.cta-band .wrap {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (max-width: 880px) { .cta-band .wrap { grid-template-columns: 1fr; } }
.cta-band h2 { max-width: 18ch; margin-bottom: 1rem; }
.cta-side {
  border-left: 2px solid var(--bronze-soft);
  padding-left: 1.8rem;
  font-size: 0.98rem;
}
.cta-side a { color: var(--bronze-soft); }
.cta-band .hero-ctas { margin-top: 1.8rem; }

/* ---------- Footer ---------- */
footer.site {
  background: var(--forest-deep);
  color: rgba(239, 232, 216, 0.75);
  position: relative;
  overflow: clip;
  border-top: 1px solid var(--rule-cream);
}
footer.site .fwrap {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 3fr) minmax(0, 4fr);
  gap: clamp(2rem, 5vw, 4rem);
  padding-block: 4rem 2.5rem;
}
@media (max-width: 880px) { footer.site .fwrap { grid-template-columns: 1fr; } }
footer.site .fbrand img.fscript { width: 110px; margin-bottom: 1.2rem; opacity: 0.9; }
footer.site .fbrand p { font-size: 0.92rem; max-width: 34ch; }
footer.site .fbrand .ftag {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.25rem;
  color: var(--bronze-soft);
  margin-bottom: 0.8rem;
}
footer.site h4 {
  font-family: var(--font-ui);
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--bronze-soft);
  margin-bottom: 1.1rem;
}
footer.site ul { list-style: none; }
footer.site ul li { margin-bottom: 0.55rem; }
footer.site a { color: rgba(239, 232, 216, 0.85); text-decoration: none; font-size: 0.94rem; }
footer.site a:hover { color: #fff; text-decoration: underline; }
footer.site .legal {
  border-top: 1px solid var(--rule-cream);
  padding-block: 1.4rem;
  font-family: var(--font-ui);
  font-size: 0.72rem;
  color: rgba(239, 232, 216, 0.62);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.8rem;
}
footer.site .feather-wm {
  position: absolute;
  right: 3%; bottom: -10%;
  height: 110%;
  opacity: 0.06;
  transform: rotate(18deg);
  pointer-events: none;
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  padding-block: clamp(3.5rem, 6vw, 5.5rem) clamp(2.5rem, 4vw, 4rem);
  border-bottom: 1px solid var(--rule);
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0px, transparent 47px,
    var(--rule-soft) 47px, var(--rule-soft) 48px
  );
}
.page-hero h1 { max-width: 20ch; margin-bottom: 1.2rem; }
.page-hero .lead { max-width: 58ch; }
.role-line {
  margin-top: 1.6rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--ink-soft);
  border-left: 2px solid var(--bronze);
  padding-left: 1rem;
  max-width: 60ch;
  line-height: 1.7;
}
.role-line b { color: var(--ink); }

/* ---------- Memo table ---------- */
.memo-table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.memo-table th {
  font-family: var(--font-ui);
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-faint);
  text-align: left;
  padding: 0.8rem 1rem 0.8rem 0;
  border-bottom: 1px solid var(--ink);
}
.memo-table td {
  padding: 1rem 1rem 1rem 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
  color: var(--ink-soft);
}
.memo-table td:first-child { color: var(--ink); font-weight: 500; width: 38%; }

/* ---------- Detail page components ---------- */
.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 7.5fr) minmax(0, 4.5fr);
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: start;
}
@media (max-width: 880px) { .detail-grid { grid-template-columns: 1fr; } }
.detail-main h2 { font-size: 1.7rem; margin: 2.6rem 0 1rem; }
.detail-main h2:first-child { margin-top: 0; }
.detail-main p { margin-bottom: 1.1rem; color: var(--ink-soft); }
.detail-main ul.obj { list-style: none; margin: 1.2rem 0 1.6rem; }
.detail-main ul.obj li {
  padding: 0.85rem 0 0.85rem 1.9rem;
  border-top: 1px solid var(--rule-soft);
  position: relative;
  color: var(--ink-soft);
  font-size: 0.99rem;
}
.detail-main ul.obj li::before {
  content: "→";
  position: absolute; left: 0; top: 0.85rem;
  color: var(--bronze);
}
.detail-aside {
  position: sticky; top: 6.5rem;
  display: flex; flex-direction: column; gap: 1.4rem;
}
.fact-box {
  border: 1px solid var(--rule);
  background: #FCFAF5;
  padding: 1.6rem 1.5rem;
}
.fact-box h3 {
  font-family: var(--font-ui);
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--bronze);
  margin-bottom: 1.1rem;
}
.fact-box dl { display: grid; gap: 0.85rem; }
.fact-box dt {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.fact-box dd {
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 500;
  color: var(--forest);
  margin-bottom: 0.2rem;
}
.fact-box dd small { font-size: 0.8rem; font-family: var(--font-ui); color: var(--ink-faint); display: block; }
.fact-box.partners-box dd {
  font-size: 0.92rem;
  font-family: var(--font-ui);
  color: var(--ink-soft);
  font-weight: 400;
  line-height: 1.6;
}
.note-box {
  border-left: 2px solid var(--bronze);
  background: var(--stone);
  padding: 1.2rem 1.4rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.note-box b { color: var(--ink); }

/* Breadcrumb */
.crumb {
  font-family: var(--font-ui);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.6rem;
}
.crumb a { color: var(--ink-faint); text-decoration: none; }
.crumb a:hover { color: var(--verdant); }
.crumb span { color: var(--bronze); margin-inline: 0.5rem; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: start;
}
@media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; } }
form.contact label {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 0.45rem;
}
form.contact .field { margin-bottom: 1.4rem; }
form.contact input, form.contact select, form.contact textarea {
  width: 100%;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--ink);
  background: #FCFAF5;
  border: 1px solid var(--rule);
  padding: 0.85rem 1rem;
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
}
form.contact select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%237A5E2C' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
}
form.contact input:focus, form.contact select:focus, form.contact textarea:focus {
  outline: 2px solid var(--verdant);
  outline-offset: -1px;
  border-color: var(--verdant);
}
form.contact textarea { min-height: 9rem; resize: vertical; }
.contact-aside .card {
  border: 1px solid var(--rule);
  background: #FCFAF5;
  padding: 1.7rem 1.6rem;
  margin-bottom: 1.4rem;
}
.contact-aside h3 {
  font-family: var(--font-ui);
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--bronze);
  margin-bottom: 1rem;
}
.contact-aside .person { margin-bottom: 1.1rem; }
.contact-aside .person b { display: block; font-weight: 600; }
.contact-aside .person a, .contact-aside .person span {
  font-family: var(--font-ui);
  font-size: 0.88rem;
  color: var(--ink-soft);
  text-decoration: none;
  display: inline-block;
  margin-top: 0.15rem;
}
.contact-aside .person a:hover { color: var(--verdant); text-decoration: underline; }
.next-steps { list-style: none; }
.next-steps li {
  display: flex; gap: 0.8rem;
  padding: 0.55rem 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.next-steps li::before { content: "✓"; color: var(--verdant); font-weight: 700; }
.form-note {
  font-family: var(--font-ui);
  font-size: 0.76rem;
  color: var(--ink-faint);
  margin-top: 0.9rem;
  line-height: 1.6;
}

/* ---------- Stats band (model page) ---------- */
.stats-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.4rem;
}
@media (max-width: 880px) { .stats-band { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .stats-band { grid-template-columns: 1fr; } }
.sb {
  border: 1px solid var(--rule-cream);
  padding: 1.7rem 1.5rem;
  background: rgba(239,232,216,0.03);
}
.sb .num {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 2.4vw, 2.5rem);
  color: #F4EEDF;
  line-height: 1.1;
}
.sb .num em { font-style: normal; color: var(--bronze-soft); }
.sb p { font-family: var(--font-ui); font-size: 0.8rem; margin-top: 0.6rem; line-height: 1.6; }

/* ---------- Mobile sticky CTA ---------- */
.mobile-cta {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 1500;
  background: var(--forest-deep);
  padding: 0.7rem var(--gutter);
  padding-bottom: calc(0.7rem + env(safe-area-inset-bottom));
  border-top: 1px solid rgba(201,182,138,0.3);
}
.mobile-cta a {
  display: block;
  text-align: center;
  font-family: var(--font-ui);
  font-size: 0.84rem; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--forest-deep);
  background: var(--cream);
  padding: 0.85rem;
  text-decoration: none;
}
@media (max-width: 700px) {
  .mobile-cta.show { display: block; }
  body.has-mobile-cta { padding-bottom: 4.5rem; }
}

/* ---------- Reveal animations ---------- */
/* Hidden state only applies when JS is running (html.js), so content
   remains fully visible if JavaScript fails or is disabled. */
.js .reveal {
  opacity: 0;
  transform: translateY(26px);
}
.reveal.in {
  opacity: 1;
  transform: none;
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
  transition-delay: var(--d, 0s);
}
@media (prefers-reduced-motion: reduce) {
  .js .reveal, .reveal { opacity: 1; transform: none; }
  .layer:hover { transform: none; }
  .pcard:hover, .path:hover { transform: none; }
}

/* hero load-in */
@keyframes rise {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: none; }
}
@keyframes featherIn {
  from { opacity: 0; transform: translateY(-18px) rotate(2deg); }
  to { opacity: 1; transform: none; }
}
.hero .eyebrow { animation: rise 0.8s var(--ease-out) 0.05s backwards; }
.hero h1 { animation: rise 0.9s var(--ease-out) 0.15s backwards; }
.hero .lead { animation: rise 0.9s var(--ease-out) 0.3s backwards; }
.hero .hero-ctas { animation: rise 0.9s var(--ease-out) 0.45s backwards; }
.hero-art img.feather { animation: featherIn 1.3s var(--ease-out) 0.35s backwards; }
.hero-art .script { animation: rise 1s var(--ease-out) 0.7s backwards; }
@media (prefers-reduced-motion: reduce) {
  .hero .eyebrow, .hero h1, .hero .lead, .hero .hero-ctas,
  .hero-art img.feather, .hero-art .script { animation: none; }
}

/* ---------- Project locator (detail aside) ---------- */
.locator {
  border: 1px solid var(--rule);
  background: #FCFAF5;
  padding: 1.5rem 1.5rem 1.3rem;
}
.locator h3 {
  font-family: var(--font-ui);
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--bronze);
  margin-bottom: 1rem;
}
.loc-map { width: 100%; max-width: 210px; height: auto; display: block; margin: 0 auto 0.6rem; overflow: visible; }
.loc-map .land { fill: none; stroke: var(--ink); stroke-width: 0.5; stroke-linejoin: round; stroke-linecap: round; opacity: 0.5; }
.loc-map .dot { fill: var(--bronze); }
.loc-map .ring {
  fill: none; stroke: var(--bronze); stroke-width: 0.6;
  transform-box: fill-box; transform-origin: center;
  animation: mpulse 3.2s ease-out infinite;
}
.loc-map .loc-place {
  font-family: var(--font-display); font-style: italic;
  font-size: 7px; fill: var(--forest); text-anchor: middle;
}
.locator .loc-cap {
  font-family: var(--font-ui); font-size: 0.72rem;
  letter-spacing: 0.06em; color: var(--ink-soft); text-align: center;
}
.locator .loc-cap b { color: var(--ink); }
@media (prefers-reduced-motion: reduce) { .loc-map .ring { animation: none; opacity: 0.4; } }

/* ---------- Africa map band ---------- */
.map-band { background: var(--paper-deep); border-block: 1px solid var(--rule); }
.map-grid {
  display: grid;
  grid-template-columns: minmax(0, 5.3fr) minmax(0, 4.7fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
@media (max-width: 880px) { .map-grid { grid-template-columns: 1fr; gap: 2.5rem; } }

.map-figure { position: relative; }
.africa-map {
  width: 100%; height: auto; display: block; overflow: visible;
  max-width: 520px; margin-inline: auto;
}
.africa-map .land {
  fill: none;
  stroke: var(--ink);
  stroke-width: 0.5;
  stroke-linejoin: round;
  stroke-linecap: round;
  opacity: 0.82;
}
.africa-map .dot { fill: var(--bronze); }
.africa-map .mnum {
  fill: var(--paper);
  font-family: var(--font-ui);
  font-size: 3.1px;
  font-weight: 700;
  text-anchor: middle;
}
.africa-map .ring {
  fill: none;
  stroke: var(--bronze);
  stroke-width: 0.6;
  transform-box: fill-box;
  transform-origin: center;
  animation: mpulse 3.2s ease-out infinite;
}
.africa-map .mnode:nth-of-type(2) .ring { animation-delay: 0.8s; }
.africa-map .mnode:nth-of-type(3) .ring { animation-delay: 1.6s; }
.africa-map .mnode:nth-of-type(4) .ring { animation-delay: 2.4s; }
@keyframes mpulse {
  0%   { transform: scale(0.5); opacity: 0.55; }
  70%  { transform: scale(2.1); opacity: 0; }
  100% { transform: scale(2.1); opacity: 0; }
}
.map-figure figcaption {
  font-family: var(--font-ui);
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-faint);
  text-align: center; margin-top: 1rem;
}

.map-legend { list-style: none; margin-top: 1.4rem; }
.map-legend li { border-top: 1px solid var(--rule); }
.map-legend li:last-child { border-bottom: 1px solid var(--rule); }
.map-legend a {
  display: grid;
  grid-template-columns: 2rem 1fr auto;
  align-items: baseline;
  gap: 0.4rem 1rem;
  padding: 1.05rem 0.2rem;
  text-decoration: none;
  color: var(--ink);
  transition: padding 0.25s var(--ease-out), background 0.25s var(--ease-out);
}
.map-legend a:hover { padding-inline: 0.7rem; background: rgba(122, 94, 44, 0.05); }
.map-legend .lnum {
  font-family: var(--font-ui);
  font-size: 0.72rem; font-weight: 700;
  color: var(--bronze);
  font-variant-numeric: tabular-nums;
}
.map-legend .lplace { display: flex; flex-direction: column; gap: 0.15rem; }
.map-legend .lcountry { font-family: var(--font-display); font-size: 1.15rem; font-weight: 500; }
.map-legend .lsector {
  font-family: var(--font-ui); font-size: 0.78rem; color: var(--ink-soft);
}
.map-legend .lval {
  font-family: var(--font-display); font-size: 1.05rem; color: var(--forest);
  font-variant-numeric: tabular-nums; white-space: nowrap;
}
.map-legend a:hover .lcountry { color: var(--verdant); }

@media (prefers-reduced-motion: reduce) {
  .africa-map .ring { animation: none; opacity: 0.4; }
}

/* ---------- Utilities ---------- */
.mt-1 { margin-top: 1rem; } .mt-2 { margin-top: 2rem; } .mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; } .mb-2 { margin-bottom: 2rem; }
.maxw { max-width: 64ch; }
.center { text-align: center; }

/* ---------- Terebinte concept band (home) ---------- */
.concept-band .cflow { display: grid; grid-template-columns: 1fr auto 1.2fr auto 1fr; gap: 1.1rem; align-items: center; margin-top: 3rem; }
.concept-band .ccol { display: grid; gap: 1.1rem; }
.concept-band .ccard { background: var(--paper); border: 1px solid var(--rule); padding: 1.1rem 1.2rem; }
.concept-band .ck {
  display: block; font-family: var(--font-ui); font-size: 0.62rem; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--bronze-soft); margin-bottom: 0.45rem;
}
.concept-band .ccard .ck { color: var(--bronze); }
.concept-band .ccard b { font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; color: var(--ink); display: block; margin-bottom: 0.3rem; }
.concept-band .ccard small { font-family: var(--font-ui); font-size: 0.8rem; line-height: 1.5; color: var(--ink-soft); display: block; }
.concept-band .carrow { font-size: 1.4rem; color: var(--bronze-soft); text-align: center; }
.concept-band .chub { background: var(--forest-deep); border: 1px solid var(--rule-cream); padding: 2rem 1.6rem; }
.concept-band .chub b { font-family: var(--font-display); font-weight: 600; font-size: 1.45rem; color: var(--cream); display: block; margin-bottom: 0.9rem; line-height: 1.2; }
.concept-band .cbig { display: block; font-family: var(--font-display); font-size: 2rem; font-weight: 600; color: var(--bronze-soft); margin-bottom: 0.5rem; }
.concept-band .cbig em { font-style: normal; font-size: 1rem; color: var(--cream); opacity: 0.75; }
.concept-band .chub small { font-family: var(--font-ui); font-size: 0.78rem; line-height: 1.5; color: var(--cream); opacity: 0.8; display: block; }
.concept-band .cfound { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.6rem 1.5rem; align-items: center; margin-top: 1.4rem; padding: 1.2rem 1.5rem; border: 1px solid var(--rule-cream); }
.concept-band .cfound span { font-family: var(--font-ui); font-size: 0.92rem; color: var(--cream); opacity: 0.85; }
.concept-band .cfound .ck { margin: 0 0 0.7rem; opacity: 1; flex-basis: 100%; }
.concept-band .cfigs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-top: 2.6rem; padding-top: 1.6rem; border-top: 1px solid var(--rule-cream); }
.concept-band .cfigs b { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.6rem, 2.6vw, 2.2rem); color: var(--cream); display: block; margin-bottom: 0.3rem; }
.concept-band .cfigs small { font-family: var(--font-ui); font-size: 0.78rem; line-height: 1.5; color: var(--cream); opacity: 0.7; display: block; max-width: 34ch; }
.concept-band .cnote { font-family: var(--font-ui); font-size: 0.72rem; letter-spacing: 0.03em; color: var(--cream); opacity: 0.65; margin-top: 2rem; }
@media (max-width: 900px) {
  .concept-band .cflow { grid-template-columns: 1fr; }
  .concept-band .carrow { transform: rotate(90deg); line-height: 1; }
  .concept-band .cfigs { grid-template-columns: 1fr; gap: 1.2rem; }
}
.concept-band .text-link { color: var(--bronze-soft); }
.concept-band .text-link:hover { color: var(--cream); }

.concept-band .ccard { display: flex; gap: 1rem; align-items: flex-start; }
.concept-band .cic {
  width: 44px; height: 44px; flex: none; border: 1px solid var(--rule); border-radius: 50%;
  display: grid; place-items: center; color: var(--bronze); margin-top: 0.15rem;
}
.concept-band .cic svg { width: 24px; height: 24px; }
.concept-band .ctxt { min-width: 0; }
.concept-band .chub { position: relative; }
.concept-band .hic { position: absolute; top: 1.7rem; right: 1.5rem; color: var(--cream); opacity: 0.8; }
.concept-band .hic svg { width: 30px; height: 30px; }
.concept-band .cfound .cf { display: inline-flex; align-items: center; gap: 0.7rem; }
.concept-band .cfound .cf svg { width: 26px; height: 26px; color: var(--bronze-soft); flex: none; }

/* ---------- Problem bridge flow sidebar ---------- */
.bridge-wrap { display: grid; gap: 2.5rem; align-items: stretch; }
@media (min-width: 900px) {
  .bridge-wrap { grid-template-columns: minmax(0, 62ch) 1fr; gap: 4rem; }
  .pflow { justify-self: center; }
}
.pflow { display: flex; flex-direction: column; height: 100%; }
.pflow::before, .pflow::after { content: ""; flex: 2 1 0; }
.pfnode { display: flex; align-items: center; gap: 1.1rem; }
.pfi {
  width: 58px; height: 58px; flex: none; border: 1px solid var(--rule); border-radius: 50%;
  display: grid; place-items: center; color: var(--bronze); background: var(--paper);
}
.pfi svg { width: 29px; height: 29px; }
.pfl { font-family: var(--font-ui); font-size: 0.92rem; color: var(--ink-soft); }
.pfline { width: 1px; flex: 4 1 36px; min-height: 36px; background: var(--rule); margin-left: 29px; }
.pf-key .pfi { background: var(--forest); border-color: var(--forest); color: var(--cream); }
.pf-key .pfl { color: var(--forest); font-weight: 600; }
.pf-end .pfi { color: var(--verdant); border-color: var(--verdant); }
.pf-end .pfl { color: var(--verdant); font-weight: 600; }
@media (max-width: 899px) { .pflow { display: none; } }

/* ---------- Mobile fixes (menu containing block + phantom overflow) ---------- */
/* backdrop-filter on the sticky header creates a containing block that traps the
   fixed nav panel inside the header strip; disable it on mobile so the panel
   is truly viewport-fixed. Slightly more opaque background compensates. */
@media (max-width: 920px) {
  header.site {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(246, 243, 236, 0.97);
  }
}
/* clip (not hidden: preserves sticky) guards against off-canvas boxes
   extending the scrollable area on iOS */
html { overflow-x: clip; }