:root {
  --bg: #0b0b0c;
  --bg-elev: #141415;
  --border: #26262a;
  --border-strong: #3a3a40;
  --text: #f3efe5;
  --text-muted: #8a8a8c;
  --text-dim: #555558;
  --accent: #c93838;
  --accent-dim: #7a2424;
  --amber: #d4a45a;

  --display: 'Space Grotesk', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', 'Cascadia Mono', Menlo, Consolas, monospace;

  --measure: 64ch;
  --measure-wide: 92ch;

  --pad-x: clamp(1.25rem, 4vw, 2.5rem);
  --pad-y: clamp(2rem, 6vw, 4rem);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'ss01', 'cv11';
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

::selection {
  background: var(--accent);
  color: var(--text);
}

/* ---- Layout primitives ---- */

.shell {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}

.prose {
  max-width: var(--measure);
}

.prose-wide {
  max-width: var(--measure-wide);
}

main {
  flex: 1;
  padding-top: 3rem;
  padding-bottom: 6rem;
}

section + section {
  margin-top: 4.5rem;
}

/* ---- Top nav ---- */

.nav {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.brand-mark {
  display: inline-block;
  width: 22px;
  height: 22px;
  color: var(--accent);
  flex-shrink: 0;
  transform: translateY(2px);
}

.brand-mark svg {
  width: 100%;
  height: 100%;
  display: block;
}

.brand-name {
  font-weight: 600;
  letter-spacing: 0.18em;
}

.nav-links {
  display: flex;
  gap: 1.75rem;
  align-items: center;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
  transition: color 0.18s, border-color 0.18s;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.nav-cta {
  color: var(--text) !important;
  border: 1px solid var(--border-strong);
  padding: 0.35rem 0.85rem !important;
}

.nav-cta:hover {
  border-color: var(--accent) !important;
  background: transparent;
}

@media (max-width: 760px) {
  .nav-links {
    gap: 1rem;
  }
  .nav-links a:not(.nav-cta) {
    display: none;
  }
}

/* ---- Typography ---- */

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin: 0 0 0.6em 0;
}

h1 {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-top: 0;
}

h3 {
  font-size: 1.1rem;
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: -0.005em;
  text-transform: none;
  color: var(--text);
}

h4 {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

p {
  margin: 0 0 1.1em;
  color: var(--text);
}

p.lede {
  font-family: var(--sans);
  font-size: clamp(1.15rem, 1.8vw, 1.35rem);
  font-weight: 400;
  line-height: 1.5;
  color: var(--text);
  margin-bottom: 2rem;
  letter-spacing: -0.005em;
}

.muted {
  color: var(--text-muted);
}

strong {
  color: var(--text);
  font-weight: 600;
}

a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-dim);
  transition: border-color 0.18s;
}

a:hover {
  border-bottom-color: var(--accent);
}

a.bare,
a.bare:hover {
  border-bottom: none;
}

ul, ol {
  margin: 0 0 1.5em;
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.5em;
}

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 0.06em 0.35em;
  border-radius: 2px;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 3rem 0;
}

/* ---- Hero ---- */

.hero {
  padding-top: clamp(2.5rem, 8vw, 5rem);
  padding-bottom: clamp(3rem, 8vw, 5rem);
  border-bottom: 1px solid var(--border);
}

.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.hero-sub {
  margin-top: 1.75rem;
  font-family: var(--sans);
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  font-weight: 400;
  line-height: 1.55;
  max-width: 60ch;
  color: var(--text-muted);
  letter-spacing: -0.005em;
}

.hero-meta {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 3rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-meta span::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
}

/* ---- Section heading ---- */

.section-head {
  margin-bottom: 2.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

/* ---- Tables ---- */

table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 0.88rem;
  margin: 2rem 0;
}

table th,
table td {
  text-align: left;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

table th {
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.74rem;
  color: var(--text-muted);
  border-bottom-color: var(--border-strong);
}

table td.num {
  font-variant-numeric: tabular-nums;
  text-align: right;
}

table.payoff {
  table-layout: fixed;
  text-align: center;
}

table.payoff th, table.payoff td {
  text-align: center;
  padding: 1.1rem 0.75rem;
}

table.payoff td {
  font-family: var(--mono);
  font-size: 0.95rem;
}

table.payoff .high { color: var(--text); }
table.payoff .pen { color: var(--accent); }

/* ---- Cards / pillars grid ---- */

.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  margin: 2rem 0;
}

.card {
  border: 1px solid var(--border);
  padding: 1.5rem;
  background: transparent;
  transition: border-color 0.2s;
}

.card:hover {
  border-color: var(--border-strong);
}

.card .label {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 0.85rem;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.6rem;
  font-size: 1.1rem;
}

.card p:last-child {
  margin-bottom: 0;
}

.card p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* ---- Number stat ---- */

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0;
  border: 1px solid var(--border);
  margin: 2rem 0;
}

.stat {
  padding: 1.5rem;
  border-right: 1px solid var(--border);
}

.stat:last-child {
  border-right: none;
}

@media (max-width: 700px) {
  .stat {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .stat:last-child {
    border-bottom: none;
  }
}

.stat .v {
  font-family: var(--display);
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: -0.035em;
  display: block;
  line-height: 1;
  margin-bottom: 0.6rem;
}

.stat .k {
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
}

/* ---- Steps (numbered) ---- */

.steps {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
  counter-reset: step;
}

.steps li {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  gap: 1.25rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border);
  counter-increment: step;
  margin: 0;
}

.steps li:last-child {
  border-bottom: 1px solid var(--border);
}

.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  padding-top: 0.25rem;
}

.steps h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
  font-family: var(--sans);
}

.steps p {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.95rem;
}

/* ---- Pull quote ---- */

.pull {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(1.25rem, 2.2vw, 1.65rem);
  line-height: 1.3;
  border-left: 2px solid var(--accent);
  padding: 0.5rem 0 0.5rem 1.5rem;
  margin: 3rem 0;
  color: var(--text);
  letter-spacing: -0.02em;
}

.pull cite {
  display: block;
  font-style: normal;
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-muted);
  margin-top: 1rem;
}

/* ---- Footer ---- */

footer {
  border-top: 1px solid var(--border);
  padding-top: 2.5rem;
  padding-bottom: 2.5rem;
  margin-top: auto;
}

.foot-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: flex-end;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
}

.foot-grid .right {
  text-align: right;
}

.foot-grid a {
  color: var(--text-muted);
  border-bottom: none;
}

.foot-grid a:hover {
  color: var(--text);
}

@media (max-width: 600px) {
  .foot-grid {
    grid-template-columns: 1fr;
  }
  .foot-grid .right {
    text-align: left;
  }
}

/* ---- Confidential stripe (page top) ---- */

.confidential {
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: var(--text-dim);
  text-align: center;
  padding: 0.5rem;
  border-bottom: 1px solid var(--border);
}

/* ---- Inline button ---- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text);
  border: 1px solid var(--border-strong);
  padding: 0.85rem 1.4rem;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
}

.btn:hover {
  border-color: var(--accent);
  border-bottom-color: var(--accent);
}

.btn-primary {
  border-color: var(--accent);
  background: transparent;
}

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

.btn-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

/* ---- Comparison rows ---- */

.compare {
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

.compare-row {
  display: grid;
  grid-template-columns: 1fr 2fr 2fr;
  gap: 1.25rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.compare-row .who {
  font-family: var(--mono);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text);
}

.compare-row .what {
  color: var(--text-muted);
}

.compare-row .why {
  color: var(--text);
}

.compare-row.us .who { color: var(--accent); }
.compare-row.us .why { color: var(--text); font-weight: 500; }

@media (max-width: 720px) {
  .compare-row {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
}

/* ---- Architecture flow ---- */

.flow {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 1.5rem;
  margin: 2rem 0;
  text-align: center;
  letter-spacing: 0.04em;
  line-height: 1.8;
}

.flow strong {
  color: var(--accent);
  font-weight: 600;
}

.flow .arrow {
  display: inline-block;
  margin: 0 0.75rem;
  color: var(--text-dim);
}