:root {
  color-scheme: dark;
  --ink: #080808;
  --paper: #efebe2;
  --paper-2: #d8d0c1;
  --white: #fbf8f0;
  --muted: #8b8376;
  --line: rgba(239, 235, 226, .22);
  --line-dark: rgba(8, 8, 8, .18);
  --green: #9ee56f;
  --blue: #c9d7ff;
  --navy: #080808;
  --amber: #d6a83d;
  font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
}
a { color: inherit; text-decoration: none; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(16px, 3vw, 40px);
  background: rgba(8, 8, 8, .86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.brand, nav, .actions {
  display: flex;
  align-items: center;
}
.brand {
  gap: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--paper);
}
nav {
  gap: 26px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
nav a:hover { color: var(--paper); }
.header-action, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 999px;
  padding: 0 18px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.header-action, .button.primary {
  background: var(--paper);
  color: var(--ink);
}
.button.secondary {
  background: transparent;
  color: var(--paper);
  border: 1px solid var(--line);
}

main { overflow: hidden; }
section {
  position: relative;
  padding: 110px clamp(16px, 4vw, 56px);
}
.connector::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -52px;
  width: 2px;
  height: 104px;
  background: linear-gradient(var(--paper), rgba(239,235,226,.12), transparent);
}
.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 44px;
  align-items: end;
  background: var(--ink);
}
.eyebrow {
  margin: 0 0 18px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 1280px;
  margin-bottom: 28px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(72px, 14vw, 230px);
  font-weight: 400;
  line-height: .78;
  letter-spacing: -.07em;
  text-transform: uppercase;
}
h1 span {
  display: block;
}
h2 {
  max-width: 980px;
  font-family: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  font-size: clamp(38px, 6vw, 88px);
  font-weight: 500;
  line-height: .92;
  letter-spacing: -.05em;
  text-transform: uppercase;
}
h3 {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  letter-spacing: .08em;
  line-height: 1.2;
  text-transform: uppercase;
}
p {
  color: var(--muted);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.5;
}
.hero-copy > p:not(.eyebrow) {
  max-width: 760px;
  color: #c9c1b4;
  font-size: clamp(20px, 2.2vw, 34px);
  letter-spacing: -.02em;
}
.actions {
  gap: 14px;
  flex-wrap: wrap;
}
.hero-system {
  width: min(760px, 100%);
  margin-left: auto;
  padding: 18px;
  border-radius: 0;
  background: transparent;
  border: 1px solid var(--line);
}
.system-label {
  margin-bottom: 18px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.system-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: rgba(239, 235, 226, .03);
}
.system-card.active {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--paper);
}
.system-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
}
.system-card.active span { color: #b8c7dc; }
.system-card strong { font-size: 22px; }
.flow-line {
  width: 2px;
  height: 42px;
  margin: 0 auto;
  background: linear-gradient(var(--paper), rgba(239,235,226,.12));
}
.statement {
  background: var(--paper);
  color: var(--ink);
}
.statement p {
  max-width: 1200px;
  margin: 0 auto;
  color: var(--ink);
  font-size: clamp(34px, 6vw, 94px);
  line-height: .95;
  letter-spacing: -.055em;
  text-transform: uppercase;
}
.section-kicker {
  max-width: 900px;
  margin-bottom: 34px;
}
.problem,
.workflow,
.product {
  background: var(--paper);
  color: var(--ink);
}
.problem .eyebrow,
.workflow .eyebrow,
.product .eyebrow,
.value .eyebrow {
  color: #6f665b;
}
.problem p,
.workflow p,
.product p,
.value p {
  color: #5e554b;
}
.problem-grid, .value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line-dark);
  border-left: 1px solid var(--line-dark);
}
.problem-grid article, .value-grid article, .tool-panel, .product-card {
  border-radius: 0;
  background: transparent;
  border: 1px solid var(--line-dark);
  box-shadow: none;
}
.problem-grid article, .value-grid article {
  min-height: 280px;
  padding: 28px;
  border-left: 0;
  border-top: 0;
}
.problem-grid span {
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  font-weight: 900;
}
.tool {
  background: var(--ink);
  color: var(--paper);
}
.tool p { color: #c1ccda; }
.tool .eyebrow { color: var(--muted); }
.tool-panel {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(280px, .75fr);
  gap: 36px;
  padding: 0;
  background: transparent;
  border-color: var(--line);
}
.feature-list {
  display: grid;
  gap: 0;
}
.feature-list div, .steps div, .product-meta div {
  padding: 22px;
  border-radius: 0;
  background: transparent;
  border: 1px solid var(--line);
}
.tool-panel > div:first-child { padding: clamp(28px, 5vw, 62px); }
.feature-list strong, .feature-list span,
.product-meta span, .product-meta strong {
  display: block;
}
.feature-list span { color: #c1ccda; margin-top: 6px; }
.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line-dark);
  border-left: 1px solid var(--line-dark);
}
.steps div {
  min-height: 240px;
  border-color: var(--line-dark);
  border-top: 0;
  border-left: 0;
}
.steps span {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-weight: 900;
}
.steps strong {
  display: block;
  margin: 16px 0 8px;
  font-size: 22px;
}
.value {
  background: var(--ink);
  color: var(--paper);
}
.product-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  max-width: 1240px;
  margin: 0 auto;
  padding: clamp(26px, 5vw, 56px);
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.product-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.product-meta div {
  background: transparent;
  border-color: rgba(239,235,226,.2);
}
.product-meta span {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 7px;
}
.story {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 42px;
  min-height: 76vh;
  background: var(--ink);
  color: var(--paper);
}
.story p { color: #c9d3df; }
.story .eyebrow { color: #57dca8; }
.story div { max-width: 900px; }

@media (max-width: 900px) {
  nav { display: none; }
  .hero,
  .tool-panel,
  .problem-grid,
  .value-grid,
  .steps,
  .product-meta {
    grid-template-columns: 1fr;
  }
  .hero { min-height: auto; }
  .site-header { align-items: flex-start; }
  .header-action { display: none; }
  h1 { font-size: clamp(68px, 22vw, 120px); }
  .problem-grid, .value-grid, .steps { border-left: 0; }
  .story {
    align-items: flex-start;
    flex-direction: column;
  }
}