:root {
  --paper: #f4f1e8;
  --paper-2: #ebe7dc;
  --ink: #13201d;
  --muted: #66706b;
  --line: #d8d4c8;
  --teal: #0f766e;
  --teal-dark: #0b574f;
  --mint: #dff3ec;
  --amber: #c46b18;
  --white: #fffdf7;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: inherit; }
button { font: inherit; }

.site-nav {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  padding: 22px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 750;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--ink);
  color: #baf2e5;
  display: grid;
  place-items: center;
  font: 750 15px/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.nav-links {
  display: flex;
  gap: 22px;
  margin-left: 12px;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

.nav-links a:hover { color: var(--ink); }
.nav-spacer { flex: 1; }

.button {
  min-height: 42px;
  padding: 0 17px;
  border: 1px solid var(--ink);
  border-radius: 7px;
  background: transparent;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-decoration: none;
  cursor: pointer;
}

.button.primary {
  color: var(--white);
  background: var(--teal);
  border-color: var(--teal);
}

.button.primary:hover { background: var(--teal-dark); }
.button:hover { border-color: var(--teal); }

.hero {
  max-width: 1220px;
  margin: 0 auto;
  padding: 74px 24px 28px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border: 1px solid #bfdcd4;
  border-radius: 999px;
  background: var(--mint);
  color: var(--teal-dark);
  font-size: 12px;
  font-weight: 650;
}

.hero h1 {
  margin: 20px 0 10px;
  font-size: 76px;
  line-height: .95;
  letter-spacing: 0;
}

.hero-statement {
  margin: 18px auto 0;
  max-width: 760px;
  font-size: 38px;
  line-height: 1.15;
  letter-spacing: 0;
  font-weight: 650;
}

.hero-copy {
  max-width: 700px;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 17px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.command-strip {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  padding: 9px 12px 9px 14px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(255,253,247,.72);
  color: var(--muted);
  font: 13px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.command-strip button {
  min-height: 28px;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
}

.hero-preview {
  max-width: 1120px;
  margin: 36px auto 0;
  border: 1px solid #b9b5a9;
  border-radius: 8px;
  overflow: hidden;
  background: #16231f;
  color: #eff4f1;
  box-shadow: 0 30px 80px rgba(19,32,29,.18);
  text-align: left;
}

.preview-top {
  min-height: 48px;
  padding: 0 16px;
  border-bottom: 1px solid rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  gap: 8px;
}

.traffic { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,.22); }
.preview-title { margin-left: 8px; color: #aabcb5; font: 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }

.preview-body {
  min-height: 430px;
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
}

.preview-sidebar {
  border-right: 1px solid rgba(255,255,255,.1);
  padding: 18px 12px;
  background: #12201c;
}

.preview-side-label {
  padding: 0 8px;
  color: #7e948c;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0;
}

.preview-nav-item {
  margin-top: 6px;
  padding: 8px 10px;
  border-radius: 6px;
  color: #a9bbb4;
  font-size: 12px;
}

.preview-nav-item.active { color: #c9faee; background: rgba(185,242,230,.1); }
.preview-main { padding: 22px; min-width: 0; }
.preview-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.preview-kicker { color: #8da49c; font-size: 11px; }
.preview-h { margin-top: 4px; font-size: 20px; font-weight: 700; }
.preview-tabs { display: flex; gap: 6px; flex-wrap: wrap; }

.preview-tab {
  min-height: 30px;
  padding: 0 9px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 5px;
  background: transparent;
  color: #9fb1aa;
  cursor: pointer;
  font-size: 11px;
}

.preview-tab.active { background: #b9f2e6; color: #10201c; border-color: #b9f2e6; }
.preview-panel { display: none; margin-top: 22px; }
.preview-panel.active { display: block; }

.context-card {
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 8px;
  padding: 16px;
  background: rgba(255,255,255,.035);
}

.context-row { display: grid; grid-template-columns: 76px minmax(0, 1fr); gap: 12px; padding: 9px 0; border-bottom: 1px solid rgba(255,255,255,.08); }
.context-row:last-child { border-bottom: 0; }
.context-label { color: #80968e; font-size: 11px; }
.context-value { font-size: 12px; }

.preview-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.preview-tile { padding: 14px; border: 1px solid rgba(255,255,255,.1); border-radius: 7px; background: rgba(255,255,255,.025); }
.preview-tile strong { display: block; color: #d6efe8; font-size: 13px; }
.preview-tile span { display: block; margin-top: 6px; color: #8ea49c; font-size: 11px; }

.section-wrap { max-width: 1120px; margin: 0 auto; padding: 92px 24px; }
.section-head { max-width: 720px; }
.section-head h2 { margin: 0; font-size: 44px; line-height: 1.08; letter-spacing: 0; }
.section-head p { color: var(--muted); font-size: 17px; }

.problem-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 34px; }
.problem { padding: 18px; border-top: 2px solid var(--ink); background: rgba(255,253,247,.42); }
.problem-index { color: var(--amber); font: 700 12px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.problem h3 { margin: 12px 0 6px; font-size: 16px; }
.problem p { margin: 0; color: var(--muted); font-size: 13px; }

.flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 36px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.flow-step { padding: 24px 20px; border-right: 1px solid var(--line); }
.flow-step:last-child { border-right: 0; }
.flow-step b { display: block; font-size: 15px; }
.flow-step span { display: block; margin-top: 8px; color: var(--muted); font-size: 13px; }
.flow-num { color: var(--teal); font: 700 11px/1 ui-monospace, SFMono-Regular, Menlo, monospace; }

.trust {
  background: var(--ink);
  color: #eff4f1;
}
.trust .section-wrap { padding-top: 72px; padding-bottom: 72px; }
.trust-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: start; }
.trust h2 { margin: 0; font-size: 44px; line-height: 1.08; }
.trust p { color: #aebdb7; }
.trust-list { display: grid; gap: 1px; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.1); }
.trust-item { padding: 17px 18px; background: var(--ink); }
.trust-item b { display: block; }
.trust-item span { display: block; margin-top: 4px; color: #9fb2aa; font-size: 13px; }

.editions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 34px; }
.edition { border: 1px solid var(--line); border-radius: 8px; padding: 24px; background: var(--white); }
.edition.featured { border-color: var(--teal); }
.edition-label { color: var(--teal-dark); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0; }
.edition h3 { margin: 10px 0 8px; font-size: 25px; }
.edition p { color: var(--muted); }
.edition ul { padding-left: 18px; color: var(--muted); }
.edition li { margin: 6px 0; }

.final-cta {
  max-width: 1120px;
  margin: 20px auto 100px;
  padding: 42px;
  border-radius: 9px;
  background: var(--teal);
  color: white;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}
.final-cta h2 { margin: 0; font-size: 34px; line-height: 1.15; }
.final-cta p { color: #d2eee7; margin-bottom: 0; }
.final-cta .button { background: white; color: var(--teal-dark); border-color: white; }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 24px;
  color: var(--muted);
  font-size: 12px;
}
.footer-inner { max-width: 1120px; margin: 0 auto; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .preview-body { grid-template-columns: 1fr; }
  .preview-sidebar { display: none; }
  .problem-grid, .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow-step:nth-child(2) { border-right: 0; }
  .trust-grid, .editions { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .site-nav { padding: 16px; gap: 12px; }
  .nav-spacer { display: none; }
  .site-nav .button { margin-left: auto; }
  .hero { padding-top: 44px; }
  .hero h1 { font-size: 52px; }
  .hero-statement { font-size: 30px; }
  .hero-preview { margin-top: 28px; }
  .preview-main { padding: 16px; }
  .preview-head { align-items: start; flex-direction: column; }
  .preview-grid, .problem-grid, .flow { grid-template-columns: 1fr; }
  .flow-step { border-right: 0; border-bottom: 1px solid var(--line); }
  .flow-step:last-child { border-bottom: 0; }
  .section-wrap { padding: 66px 18px; }
  .section-head h2, .trust h2 { font-size: 34px; }
  .final-cta { margin: 12px 18px 70px; padding: 28px; flex-direction: column; align-items: start; }
  .final-cta h2 { font-size: 28px; }
}