:root {
  --bg: #0b0c0b;
  --bg-2: #10110f;
  --panel: #141613;
  --panel-2: #191b17;
  --line: rgba(244, 242, 235, 0.085);
  --line-strong: rgba(244, 242, 235, 0.16);
  --text: #f3f0e8;
  --muted: #aaa69b;
  --muted-2: #747167;
  --accent: #d6ff64;
  --accent-soft: rgba(214, 255, 100, 0.1);
  --accent-2: #9bc7df;
  --danger: #ffb86b;
  --shadow: 0 20px 70px rgba(0, 0, 0, 0.26);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

body.js { scroll-padding-top: 5rem; }

a { color: inherit; text-decoration: none; }

button,
input,
select,
textarea { font: inherit; }

.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 82% 0%, rgba(214, 255, 100, 0.075), transparent 30rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 32rem);
  z-index: 0;
}

.site-header,
main,
.footer {
  position: relative;
  z-index: 1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1rem clamp(1.25rem, 4vw, 4rem);
  background: rgba(11, 12, 11, 0.82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border: 1px solid rgba(214, 255, 100, 0.34);
  background: rgba(214, 255, 100, 0.075);
  color: var(--accent);
}

nav {
  display: flex;
  align-items: center;
  gap: 1.55rem;
  color: var(--muted);
  font-size: 0.95rem;
}

nav a:hover,
.site-header a.active,
.footer a:hover { color: var(--text); }

.header-cta,
.button,
.calc-actions button,
.copy-button,
.actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  border: 1px solid var(--line-strong);
  padding: 0 1rem;
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.header-cta:hover,
.button:hover,
.calc-actions button:hover,
.copy-button:hover,
.actions button:hover {
  transform: translateY(-1px);
  border-color: rgba(214, 255, 100, 0.48);
}

.primary,
.primary-action {
  background: var(--accent);
  border-color: var(--accent);
  color: #111;
  font-weight: 750;
}

.secondary,
.ghost-action { background: transparent; }

.danger {
  background: transparent;
  color: var(--danger);
  border-color: rgba(255, 184, 107, 0.26);
}

.section-pad {
  position: relative;
  padding: clamp(4.5rem, 8vw, 8rem) clamp(1.25rem, 4vw, 4rem);
  scroll-margin-top: 5rem;
}

.chapter {
  border-top: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.018), transparent 15rem),
    var(--bg);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(24rem, 0.96fr);
  align-items: center;
  gap: clamp(2.5rem, 8vw, 8rem);
  min-height: calc(100vh - 4rem);
  max-width: 1440px;
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p { margin-top: 0; }

h1 {
  max-width: 11ch;
  margin-bottom: 1.35rem;
  font-size: clamp(4.5rem, 9.8vw, 8.4rem);
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.25rem, 5vw, 4.75rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  font-size: clamp(1.35rem, 2.6vw, 2.1rem);
  line-height: 1.05;
}

.hero-lede {
  max-width: 44rem;
  color: var(--muted);
  font-size: clamp(1.16rem, 2vw, 1.45rem);
}

.hero-signals {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.65rem;
  color: var(--muted);
}

.hero-signals span {
  position: relative;
  padding-left: 1rem;
  font-weight: 650;
}

.hero-signals span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.64em;
  width: 0.36rem;
  height: 0.36rem;
  background: var(--accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.operating-map,
.model-stage,
.network-proof,
.network-process,
.tool-card,
.workflow,
.calculator-shell,
.calc-card,
.dashboard,
.payment-layout,
.checklist,
.company-proof,
.tool-preview {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.018));
  box-shadow: var(--shadow);
}

.model-stage {
  position: relative;
  min-height: clamp(34rem, 48vw, 44rem);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 45%, rgba(214, 255, 100, 0.13), transparent 9rem),
    radial-gradient(circle at 28% 72%, rgba(155, 199, 223, 0.1), transparent 13rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.052), rgba(255, 255, 255, 0.016)),
    #0d0f0d;
}

.model-grid {
  position: absolute;
  inset: -1px;
  background:
    linear-gradient(rgba(244, 242, 235, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 242, 235, 0.045) 1px, transparent 1px);
  background-size: 3rem 3rem;
  mask-image: radial-gradient(circle at 50% 45%, black 0 42%, transparent 73%);
  opacity: 0.75;
}

.model-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(214, 255, 100, 0.12), transparent);
  transform: translateX(-75%);
  animation: modelScan 7.5s ease-in-out infinite;
}

.model-core {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 2;
  width: clamp(13rem, 23vw, 18rem);
  min-height: clamp(13rem, 23vw, 18rem);
  display: grid;
  place-content: center;
  gap: 0.4rem;
  text-align: center;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(214, 255, 100, 0.28);
  background:
    radial-gradient(circle at 50% 0%, rgba(214, 255, 100, 0.16), transparent 58%),
    rgba(10, 11, 10, 0.78);
  box-shadow:
    0 0 0 1px rgba(214, 255, 100, 0.05),
    0 0 90px rgba(214, 255, 100, 0.12);
}

.model-core::before,
.model-core::after {
  content: "";
  position: absolute;
  inset: -2.2rem;
  border: 1px solid rgba(244, 242, 235, 0.075);
  transform: rotate(8deg);
}

.model-core::after {
  inset: -4.5rem;
  border-color: rgba(214, 255, 100, 0.07);
  transform: rotate(-12deg);
}

.model-core strong {
  color: var(--text);
  font-size: clamp(2.3rem, 4.8vw, 4rem);
  line-height: 0.95;
}

.model-core span {
  color: var(--muted);
  font-size: 0.9rem;
}

.model-node {
  position: absolute;
  z-index: 3;
  width: min(14rem, calc(100% - 2rem));
  padding: 1rem;
  border: 1px solid rgba(244, 242, 235, 0.11);
  background: rgba(15, 17, 15, 0.78);
  backdrop-filter: blur(12px);
}

.model-node strong {
  display: block;
  margin: 0.75rem 0 0.25rem;
  font-size: 1.15rem;
  line-height: 1.05;
}

.model-node span {
  color: var(--muted);
  font-size: 0.86rem;
}

.node-network {
  left: 1.1rem;
  top: 1.1rem;
}

.node-travel {
  right: 1.1rem;
  top: 1.1rem;
}

.node-tools {
  left: 50%;
  bottom: 1.2rem;
  transform: translateX(-50%);
}

.model-line {
  position: absolute;
  z-index: 1;
  height: 1px;
  transform-origin: left center;
  background: linear-gradient(90deg, transparent, rgba(214, 255, 100, 0.34), transparent);
}

.line-one {
  left: 25%;
  top: 30%;
  width: 29%;
  transform: rotate(34deg);
}

.line-two {
  left: 53%;
  top: 36%;
  width: 32%;
  transform: rotate(-28deg);
}

.line-three {
  left: 47%;
  top: 69%;
  width: 21%;
  transform: rotate(88deg);
}

.operating-map {
  min-height: 32rem;
  overflow: hidden;
}

.map-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.05rem 1.15rem;
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.16);
  color: var(--text);
  font-weight: 700;
}

small {
  display: block;
  color: var(--muted-2);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.command-stack {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: var(--line);
}

.command-stack div {
  display: grid;
  gap: 0.55rem;
  min-height: 9.6rem;
  padding: 1.25rem;
  background:
    linear-gradient(90deg, rgba(214, 255, 100, 0.045), transparent 42%),
    var(--panel);
}

.command-stack strong {
  color: var(--text);
  font-size: clamp(1.35rem, 2.7vw, 2rem);
  line-height: 1.02;
}

.command-stack span {
  max-width: 29rem;
  color: var(--muted);
  font-size: 0.94rem;
}

.section-intro {
  max-width: 56rem;
  margin: 0 auto 2rem;
  text-align: center;
}

.section-intro.wide {
  max-width: 72rem;
  text-align: left;
}

.section-intro p,
.systems p,
.company p,
.tool-card p,
.tool-article p {
  color: var(--muted);
  font-size: 1.05rem;
}

.network-grid {
  display: grid;
  grid-template-columns: minmax(20rem, 0.72fr) minmax(0, 1.28fr);
  gap: 1rem;
}

.network-proof {
  display: grid;
  align-content: space-between;
  min-height: 29rem;
  padding: 1.5rem;
}

.network-proof strong {
  color: var(--accent);
  font-size: clamp(5rem, 12vw, 10rem);
  line-height: 0.8;
}

.network-proof span {
  max-width: 20rem;
  color: var(--muted);
  font-size: 1.15rem;
}

.network-process {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  overflow: hidden;
  background: var(--line);
}

.network-process article {
  min-height: 12rem;
  padding: 1.25rem;
  background: var(--panel);
}

.network-process article:last-child {
  grid-column: 1 / -1;
  min-height: 8rem;
}

.network-process h3 {
  margin-bottom: 0.7rem;
  font-size: 1.25rem;
}

.network-process p {
  color: var(--muted);
  margin-bottom: 0;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.tool-card {
  min-height: 30rem;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.018)),
    var(--panel);
}

.tool-link-card:hover {
  border-color: rgba(214, 255, 100, 0.28);
}

.tool-preview {
  min-height: 12rem;
  display: grid;
  align-content: end;
  gap: 0.25rem;
  padding: 1rem;
  background:
    linear-gradient(135deg, rgba(214, 255, 100, 0.08), rgba(155, 199, 223, 0.035)),
    #0e100e;
  box-shadow: none;
}

.tool-preview span {
  color: var(--muted-2);
  font-size: 0.85rem;
}

.tool-preview strong {
  display: block;
  font-size: clamp(2.3rem, 5vw, 4.1rem);
  line-height: 0.95;
}

.tool-kicker {
  margin: 2.2rem 0 0.5rem;
  color: var(--muted-2);
  font-weight: 700;
}

.tool-card h3 {
  margin-bottom: 0.8rem;
  font-size: clamp(1.85rem, 3.4vw, 3rem);
}

.tool-card a {
  margin-top: auto;
  color: var(--accent);
  font-weight: 750;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(22rem, 1.1fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
}

.workflow {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: var(--line);
}

.workflow div {
  display: grid;
  grid-template-columns: 3rem 1fr;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--panel);
}

.workflow div:nth-child(5) {
  background: linear-gradient(90deg, rgba(214, 255, 100, 0.08), rgba(255, 255, 255, 0.018)), var(--panel);
}

.company {
  max-width: 1120px;
  margin: 0 auto;
}

.company p { max-width: 62rem; }

.company-proof {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 2rem;
  background: var(--line);
  overflow: hidden;
}

.company-proof div {
  min-height: 8.5rem;
  padding: 1.15rem;
  background: var(--panel);
}

.company-proof strong {
  display: block;
  margin-top: 1.5rem;
  font-size: 1.05rem;
}

.tool-page .site-header {
  position: sticky;
}

.tool-hero {
  max-width: 1280px;
  margin: 0 auto;
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}

.tool-hero h1 {
  max-width: 12ch;
}

.page-back {
  display: inline-block;
  margin-bottom: 2rem;
  color: var(--muted);
  font-weight: 700;
}

.page-back::before { content: "← "; }

.calculator,
.payment-tool,
.tool-article {
  max-width: 1440px;
  margin: 0 auto;
}

.calculator-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(22rem, 0.85fr);
  gap: 1rem;
  background: transparent;
  box-shadow: none;
  border: 0;
}

.calc-card {
  padding: 1.25rem;
  background: var(--panel);
}

.calc-card h2 {
  margin-bottom: 1.5rem;
  font-size: clamp(1.55rem, 2.5vw, 2.15rem);
}

.input-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
}

label {
  display: grid;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 650;
}

input,
select,
textarea {
  min-width: 0;
  width: 100%;
  border: 1px solid var(--line);
  background: #0c0d0c;
  color: var(--text);
  padding: 0.85rem;
  outline: none;
}

textarea {
  min-height: 7rem;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus { border-color: rgba(214, 255, 100, 0.62); }

.calc-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.piece-list {
  display: grid;
  gap: 0.5rem;
  margin-top: 1rem;
}

.piece-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--line);
  padding: 0.8rem;
  color: var(--muted);
}

.piece-item button {
  border: 0;
  background: transparent;
  color: var(--danger);
  cursor: pointer;
}

.empty-state {
  min-height: 21rem;
  display: grid;
  place-items: center;
  border: 1px dashed var(--line);
  color: var(--muted);
  text-align: center;
  padding: 2rem;
}

.results { display: none; }

.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.result-grid div {
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.22);
  padding: 1rem;
}

.result-grid strong {
  display: block;
  margin-top: 0.45rem;
  font-size: 1.1rem;
}

.class-result {
  margin: 1rem 0;
  border: 1px solid rgba(214, 255, 100, 0.26);
  background: rgba(214, 255, 100, 0.075);
  padding: 1.25rem;
}

.class-result strong {
  display: block;
  color: var(--accent);
  font-size: 4rem;
  line-height: 1;
}

.what-if {
  border: 1px solid var(--line);
  padding: 1rem;
  color: var(--muted);
}

.what-if strong { color: var(--text); }
.what-if.warning { border-color: rgba(255, 184, 107, 0.48); }

.copy-button {
  width: 100%;
  margin-top: 1rem;
}

.checklist {
  display: flex;
  gap: 1rem;
  max-width: 980px;
  margin: 1rem auto 0;
  padding: 1rem;
  color: var(--muted);
  background: var(--panel);
}

.checklist strong {
  color: var(--text);
  white-space: nowrap;
}

.tool-article {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding-top: 2rem;
}

.tool-article article {
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
}

.tool-article h2 {
  font-size: clamp(1.4rem, 2.4vw, 2.1rem);
}

.payment-tool-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 2rem;
}

.privacy-note {
  border: 1px solid var(--line);
  padding: 0.85rem 1rem;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.82rem;
  text-transform: uppercase;
}

.dashboard {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  overflow: hidden;
}

.metric {
  min-height: 9rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.35rem;
  background: var(--panel);
}

.metric strong {
  display: block;
  margin-top: 1.5rem;
  font-size: clamp(1.75rem, 3vw, 2.7rem);
  line-height: 1;
}

.payment-layout {
  display: grid;
  grid-template-columns: minmax(22rem, 0.82fr) minmax(0, 1.35fr);
  gap: 1px;
  margin-top: 1px;
  background: var(--line);
  overflow: hidden;
}

.panel {
  min-width: 0;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: var(--panel);
}

.panel h2,
.toolbar h2 {
  margin: 0 0 1.5rem;
  font-size: clamp(1.55rem, 2.5vw, 2.15rem);
  line-height: 1;
  font-weight: 650;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-bottom: 2.2rem;
  border: 1px solid var(--line);
  background: var(--line);
}

.tab {
  min-height: 3rem;
  border: 0;
  background: #0c0d0c;
  color: var(--muted);
  font-weight: 750;
  cursor: pointer;
}

.tab.active {
  background: var(--accent);
  color: #111;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 0.85rem;
}

.full { grid-column: 1 / -1; }

.inline-note {
  margin-top: 0.85rem;
  color: var(--muted-2);
  font-size: 0.78rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.25rem;
}

.data-tools {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.data-tools p {
  max-width: 38rem;
  margin: 0;
  color: var(--muted-2);
  font-size: 0.8rem;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}

.toolbar h2 { margin-bottom: 0; }

.filters {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.filters select {
  width: auto;
  min-width: 9rem;
  color: var(--muted);
}

.entry-list {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  padding: 1.25rem;
  background: #0f110f;
}

.entry.overdue { box-shadow: inset 3px 0 0 var(--danger); }
.entry.due-soon { box-shadow: inset 3px 0 0 var(--accent); }
.entry.paid { opacity: 0.52; }

.entry h3 {
  margin: 0 0 0.35rem;
  font-size: 1.03rem;
  font-weight: 650;
}

.meta {
  color: var(--muted-2);
  font-size: 0.82rem;
}

.notes {
  max-width: 46rem;
  margin-top: 0.7rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.entry-right {
  min-width: 12rem;
  text-align: right;
}

.amount {
  font-size: 1.35rem;
  line-height: 1;
  font-weight: 750;
}

.remaining {
  margin-top: 0.4rem;
  color: var(--muted-2);
  font-size: 0.76rem;
}

.badges {
  display: flex;
  justify-content: flex-end;
  gap: 0.45rem;
  margin-top: 0.8rem;
  flex-wrap: wrap;
}

.badge {
  color: var(--muted-2);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge + .badge::before {
  content: "·";
  margin-right: 0.45rem;
  color: var(--muted-2);
}

.badge.overdue { color: var(--danger); }
.badge.due-soon { color: var(--accent); }
.badge.paid { color: var(--muted); }
.badge.partial { color: var(--accent-2); }

.entry-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.45rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.entry-actions button {
  min-height: 2.1rem;
  padding: 0 0.7rem;
  font-size: 0.75rem;
}

.empty {
  padding: 4rem 1.5rem;
  background: #0f110f;
  color: var(--muted-2);
  text-align: center;
  font-size: 0.92rem;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2rem clamp(1.25rem, 4vw, 4rem);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer div:nth-child(2) {
  display: flex;
  gap: 1.2rem;
}

.footer p {
  margin: 0;
  font-size: 0.9rem;
}

body.js .reveal,
body.js .reveal.in-view {
  opacity: 1;
  transform: translateY(0);
  transition: transform 220ms ease, border-color 220ms ease, background 220ms ease;
}

@media (max-width: 1000px) {
  .hero,
  .split,
  .calculator-shell,
  .network-grid,
  .payment-tool-head,
  .payment-layout,
  .tool-article {
    grid-template-columns: 1fr;
  }

  .tool-grid,
  .network-process,
  .company-proof,
  .dashboard {
    grid-template-columns: 1fr;
  }

  .network-process article:last-child {
    grid-column: auto;
  }

  .tool-card {
    min-height: 24rem;
  }

  .model-stage {
    min-height: 45rem;
  }

  .node-network {
    left: 1rem;
    top: 1rem;
  }

  .node-travel {
    right: 1rem;
    top: 1rem;
  }

  .node-tools {
    bottom: 1rem;
  }
}

@media (max-width: 760px) {
  .site-header {
    align-items: flex-start;
  }

  .section-pad,
  .hero.section-pad,
  .chapter.section-pad,
  .tool-hero.section-pad {
    width: 100%;
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero,
  .hero-copy,
  .operating-map,
  .model-stage,
  .tool-card,
  .network-proof,
  .network-process,
  .workflow,
  .company-proof {
    min-width: 0;
    max-width: 100%;
  }

  nav,
  .header-cta {
    display: none;
  }

  h1 {
    font-size: clamp(3.35rem, 18vw, 5rem);
    overflow-wrap: anywhere;
  }

  .input-grid,
  .result-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .full { grid-column: auto; }

  .entry {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .entry-right {
    min-width: 0;
    text-align: left;
  }

  .badges,
  .entry-actions {
    justify-content: flex-start;
  }

  .filters {
    width: 100%;
  }

  .filters select {
    flex: 1;
    min-width: 0;
  }

  .footer,
  .checklist {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-signals {
    flex-direction: column;
  }

  .model-stage {
    min-height: 52rem;
  }

  .model-core {
    top: 58%;
    width: 12.5rem;
    min-height: 12.5rem;
  }

  .model-core::before,
  .model-core::after {
    inset: -1.25rem;
  }

  .model-core::after {
    inset: -2.6rem;
  }

  .model-node {
    width: calc(100% - 2rem);
  }

  .node-network,
  .node-travel,
  .node-tools {
    left: 1rem;
    right: auto;
    transform: none;
  }

  .node-network { top: 1rem; }
  .node-travel { top: 8.7rem; }
  .node-tools { bottom: 1rem; }

  .line-one,
  .line-two,
  .line-three {
    left: 50%;
    width: 1px;
    height: 12rem;
    transform: none;
    background: linear-gradient(180deg, transparent, rgba(214, 255, 100, 0.28), transparent);
  }

  .line-one { top: 14rem; }
  .line-two { top: 24rem; }
  .line-three { top: 36rem; }
}

@keyframes modelScan {
  0%, 28% { transform: translateX(-80%); opacity: 0; }
  44% { opacity: 1; }
  76%, 100% { transform: translateX(80%); opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

  body.js .reveal {
    opacity: 1;
    transform: none;
  }
}