:root {
  --ink: #101714;
  --muted: #5e6b65;
  --paper: #f3f4ee;
  --surface: #fbfcf8;
  --line: #d8ded8;
  --green: #126b4c;
  --mint: #78e0ad;
  --dark: #101a16;
  --amber: #e19a50;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  min-width: 320px;
}
a {
  color: inherit;
}
button,
input,
select,
textarea {
  font: inherit;
}
:focus-visible {
  outline: 3px solid rgba(18, 107, 76, 0.3);
  outline-offset: 3px;
}
.skip-link {
  position: fixed;
  top: -5rem;
  left: 1rem;
  z-index: 20;
  padding: 0.7rem 1rem;
  background: white;
}
.skip-link:focus {
  top: 1rem;
}

.site-header,
main,
footer {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  grid-template-columns: repeat(3, 7px);
  gap: 3px;
  height: 25px;
  transform: skewY(-12deg);
}
.brand-mark i {
  background: var(--green);
  border-radius: 2px;
}
.brand-mark i:nth-child(2) {
  opacity: 0.65;
  transform: translateY(4px);
}
.brand-mark i:nth-child(3) {
  opacity: 0.3;
  transform: translateY(8px);
}
nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
nav a {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 650;
  text-decoration: none;
}
nav a:hover {
  color: var(--ink);
}
.nav-cta {
  padding: 0.62rem 0.85rem;
  color: white;
  border-radius: 7px;
  background: var(--dark);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(380px, 0.8fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: center;
  min-height: 690px;
  padding: 6rem 0;
}
.eyebrow {
  margin: 0 0 1rem;
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
h1 {
  max-width: 760px;
  margin-bottom: 1.5rem;
  font-size: clamp(3rem, 6.7vw, 6.3rem);
  line-height: 0.96;
  letter-spacing: -0.065em;
}
h2 {
  margin-bottom: 1rem;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1.03;
  letter-spacing: -0.05em;
}
h3 {
  font-size: 1rem;
}
.hero-lede {
  max-width: 670px;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  line-height: 1.75;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 1.05rem;
  border: 1px solid var(--line);
  border-radius: 7px;
  font-size: 0.8rem;
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
}
.button.primary {
  color: white;
  border-color: var(--green);
  background: var(--green);
}
.button.primary:hover {
  background: #0d5b3f;
}
.button.secondary {
  background: var(--surface);
}
.audience-note {
  margin-top: 1.25rem;
  color: #7a847f;
  font-size: 0.76rem;
  line-height: 1.6;
}

.trace-window {
  overflow: hidden;
  color: #edf8f1;
  border: 1px solid #26362f;
  border-radius: 14px;
  background: var(--dark);
  box-shadow: 0 30px 80px rgba(16, 26, 22, 0.15);
}
.trace-head {
  display: flex;
  justify-content: space-between;
  padding: 1rem 1.15rem;
  border-bottom: 1px solid #2a3a33;
  color: #8fa49a;
  font-family: ui-monospace, monospace;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
}
.trace-live {
  color: var(--mint);
}
.trace-list {
  margin: 0;
  padding: 1.1rem;
  list-style: none;
}
.trace-list li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 0.85rem;
  padding: 0.95rem 0.7rem;
  border-bottom: 1px solid #27362f;
}
.trace-list li:last-child {
  border: 0;
}
.trace-list li > span {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  color: #83978d;
  border: 1px solid #3a4a43;
  border-radius: 50%;
  font-family: ui-monospace, monospace;
  font-size: 0.58rem;
}
.trace-list small,
.trace-list strong {
  display: block;
}
.trace-list small {
  margin-bottom: 0.32rem;
  color: #70867b;
  font-family: ui-monospace, monospace;
  font-size: 0.55rem;
  letter-spacing: 0.08em;
}
.trace-list strong {
  font-size: 0.78rem;
  font-weight: 600;
}
.trace-list .memory {
  margin: 0.25rem 0;
  border: 1px solid #2f684e;
  border-radius: 8px;
  background: #162a21;
}
.trace-list .memory > span {
  color: var(--mint);
  border-color: #397759;
}
.trace-list .memory small {
  color: var(--mint);
}
.trace-caption {
  margin: 0;
  padding: 0.7rem 1.15rem;
  color: #73877d;
  border-top: 1px solid #27362f;
  font-size: 0.6rem;
}

.section {
  padding: 7rem 0;
  border-top: 1px solid var(--line);
}
.problem-section > div:first-child {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: 2rem;
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 4rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--line);
}
.problem-grid article {
  min-height: 230px;
  padding: 1.7rem;
  background: var(--surface);
}
.problem-grid article > span {
  color: var(--green);
  font-family: ui-monospace, monospace;
  font-size: 0.65rem;
}
.problem-grid h3 {
  margin-top: 3rem;
}
.problem-grid p,
.product-copy > p:last-child {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.7;
}

.product-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7rem;
}
.product-points {
  display: grid;
  gap: 0;
}
.product-points div {
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--line);
}
.product-points strong,
.product-points span {
  display: block;
}
.product-points strong {
  margin-bottom: 0.35rem;
  font-size: 0.88rem;
}
.product-points span {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
}
.section-heading h2 {
  max-width: 700px;
}
.text-link {
  flex: 0 0 auto;
  margin-bottom: 1rem;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 700;
  text-decoration: none;
}
.demo-flow {
  display: grid;
  grid-template-columns: 1fr 40px 1fr 40px 1fr;
  align-items: stretch;
  margin-top: 3rem;
}
.demo-flow > span {
  display: grid;
  place-items: center;
  color: var(--green);
}
.demo-flow article {
  min-height: 210px;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}
.demo-flow article.highlight {
  color: #edf8f1;
  border-color: var(--dark);
  background: var(--dark);
}
.demo-flow small,
.demo-flow strong {
  display: block;
}
.demo-flow small {
  margin-bottom: 3.2rem;
  color: var(--green);
  font-family: ui-monospace, monospace;
  font-size: 0.58rem;
  letter-spacing: 0.09em;
}
.demo-flow strong {
  margin-bottom: 0.6rem;
  font-size: 0.95rem;
}
.demo-flow p {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.6;
}
.demo-flow .highlight small {
  color: var(--mint);
}
.demo-flow .highlight p {
  color: #9eb1a7;
}

.beta-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 7rem;
}
.beta-copy > p {
  color: var(--muted);
  line-height: 1.7;
}
.beta-copy ul {
  display: grid;
  gap: 0.55rem;
  padding-left: 1.2rem;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.5;
}
.beta-form {
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
}
.field {
  margin-bottom: 1.1rem;
}
.field label {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 0.72rem;
  font-weight: 700;
}
.field label span {
  color: var(--muted);
  font-weight: 400;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.78rem 0.85rem;
  border: 1px solid #cbd3cc;
  border-radius: 6px;
  color: var(--ink);
  background: white;
}
.field textarea {
  resize: vertical;
}
.check {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  margin: 1rem 0;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.5;
}
.check input {
  margin-top: 0.18rem;
  accent-color: var(--green);
}
.attribution-details {
  margin: 1rem 0 1.4rem;
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: 7px;
}
.attribution-details summary {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
  cursor: pointer;
}
.attribution-details .field {
  margin: 0.7rem 0 0;
}
.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.submit {
  width: 100%;
  border: 0;
}
.submit:disabled {
  opacity: 0.6;
  cursor: wait;
}
.form-status {
  min-height: 1.2rem;
  margin: 0.75rem 0 0;
  font-size: 0.72rem;
  line-height: 1.5;
}
.form-status.success {
  color: var(--green);
}
.form-status.error {
  color: #a33f37;
}

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.72rem;
}
footer p {
  margin: 0;
}

@media (max-width: 850px) {
  .hero,
  .product-section,
  .beta-section {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
  .hero {
    padding: 5rem 0;
  }
  .problem-section > div:first-child {
    grid-template-columns: 1fr;
  }
  .problem-grid {
    grid-template-columns: 1fr;
  }
  .problem-grid article {
    min-height: auto;
  }
  .problem-grid h3 {
    margin-top: 1.8rem;
  }
  .section-heading {
    align-items: start;
    flex-direction: column;
    gap: 0;
  }
  .demo-flow {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .demo-flow > span {
    transform: rotate(90deg);
  }
}

@media (max-width: 600px) {
  .site-header,
  main,
  footer {
    width: min(100% - 28px, 1180px);
  }
  .site-header nav > a:not(.nav-cta) {
    display: none;
  }
  h1 {
    font-size: clamp(2.8rem, 15vw, 4.5rem);
  }
  .hero {
    min-height: 0;
    padding: 4rem 0;
  }
  .trace-window {
    border-radius: 10px;
  }
  .section {
    padding: 5rem 0;
  }
  .beta-form {
    padding: 1.2rem;
  }
  footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

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