/* Tracebind — marketing site
 * Precision-instrument feel. Closer to JetBrains/Linear than consumer SaaS.
 * No gradients, no blobs, no JS. Mobile-first.
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  --ground: #0E1116;
  --ground-2: #161A21;
  --ground-3: #1E232C;
  --rule: #2A2F3A;
  --rule-2: #3A4150;
  --ink: #F5F2EC;
  --ink-2: #C9C4B8;
  --ink-3: #8C8678;
  --accent: #3DE0B0;
  --accent-ink: #07150F;
  --warn: #E0A93D;
  --bad: #E0563D;

  --font-ui: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  --maxw: 1120px;
  --pad: 1.25rem;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre, kbd, samp { font-family: var(--font-mono); }

/* layout */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
}

/* nav */
.nav {
  border-bottom: 1px solid var(--rule);
  background: var(--ground);
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem var(--pad);
  max-width: var(--maxw);
  margin: 0 auto;
}
.brand {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1rem;
  color: var(--ink);
}
.brand .dot { color: var(--accent); }
.nav-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.92rem;
}
.nav-links a {
  color: var(--ink-2);
}
.nav-links a:hover {
  color: var(--ink);
  text-decoration: none;
}

/* hero */
.hero {
  border-bottom: 1px solid var(--rule);
  padding: 4rem 0 4.5rem;
}
.hero h1 {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.9rem, 5vw, 3.3rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 0 0 1rem;
}
.hero h1 .accent { color: var(--accent); }
.hero .sub {
  color: var(--ink-2);
  font-size: 1.12rem;
  max-width: 36rem;
  margin: 0 0 2rem;
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}
.btn {
  display: inline-block;
  padding: 0.7rem 1.15rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.94rem;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--font-ui);
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover {
  background: #4FF0C0;
  text-decoration: none;
}
.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule-2);
}
.btn-secondary:hover {
  border-color: var(--ink-3);
  text-decoration: none;
}

/* hero artifact */
.artifact {
  background: var(--ground-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  overflow: hidden;
}
.artifact-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.9rem;
  background: var(--ground-3);
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-3);
}
.artifact-bar .right {
  display: inline-flex;
  gap: 0.6rem;
  align-items: center;
}
.dot-live {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(61, 224, 176, 0.18);
}
.artifact pre {
  margin: 0;
  padding: 1.1rem 1.25rem;
  font-size: 0.85rem;
  line-height: 1.55;
  overflow-x: auto;
  color: var(--ink-2);
}
.tok-method { color: var(--accent); font-weight: 600; }
.tok-path   { color: var(--ink); }
.tok-key    { color: #8AB4F8; }
.tok-str    { color: #C9C4B8; }
.tok-num    { color: #E0A93D; }
.tok-comment{ color: var(--ink-3); font-style: italic; }
.tok-arrow  { color: var(--accent); font-weight: 700; }
.tok-op     { color: var(--accent); font-weight: 600; }

/* sections */
section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--rule);
}
section h2 {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  margin: 0 0 0.4rem;
  color: var(--ink);
}
section .section-kicker {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 0.6rem;
}
section .lead {
  color: var(--ink-2);
  font-size: 1rem;
  max-width: 38rem;
  margin: 0 0 2.5rem;
}

/* problem block */
.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 720px) {
  .problem-grid { grid-template-columns: 1.1fr 1fr; }
}
.problem-text p { color: var(--ink-2); }
.problem-text p strong { color: var(--ink); font-weight: 600; }

.problem-list {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--ground-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1.2rem;
}
.problem-list .crossed {
  color: var(--ink-3);
  text-decoration: line-through;
}
.problem-list .ok { color: var(--accent); }
.problem-list .label {
  color: var(--ink-3);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin: 0 0 0.6rem;
}

/* three panels — capture / normalize / compile */
.panels {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}
@media (min-width: 760px) {
  .panels { grid-template-columns: repeat(3, 1fr); }
}
.panel {
  background: var(--ground-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
}
.panel .panel-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  margin-bottom: 0.6rem;
  letter-spacing: 0.05em;
}
.panel h3 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  margin: 0 0 0.5rem;
  color: var(--ink);
}
.panel p {
  color: var(--ink-2);
  font-size: 0.93rem;
  margin: 0 0 0.9rem;
}
.panel .panel-art {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-3);
  border-top: 1px solid var(--rule);
  padding-top: 0.8rem;
  white-space: pre;
  overflow-x: auto;
}

/* pillar cards */
.pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 760px) {
  .pillars { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1000px) {
  .pillars { grid-template-columns: repeat(5, 1fr); }
}
.pillar {
  background: var(--ground-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1.2rem;
}
.pillar .pn {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 0.6rem;
}
.pillar h4 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  margin: 0 0 0.5rem;
  color: var(--ink);
  line-height: 1.25;
}
.pillar p {
  color: var(--ink-2);
  font-size: 0.86rem;
  margin: 0;
  line-height: 1.5;
}

/* social proof / quote */
.partners {
  text-align: center;
}
.partners .partners-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 1rem;
}
.partners .partners-line {
  color: var(--ink-2);
  font-size: 0.95rem;
}
.partners .partners-line .accent { color: var(--accent); }

/* CTA tail */
.cta-tail {
  text-align: center;
  padding: 5rem 0;
}
.cta-tail h2 {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  margin: 0 0 1rem;
  letter-spacing: -0.01em;
}
.cta-tail p {
  color: var(--ink-2);
  margin: 0 0 1.8rem;
}

/* footer */
footer {
  border-top: 1px solid var(--rule);
  padding: 2.4rem 0;
  background: var(--ground);
  color: var(--ink-3);
  font-size: 0.85rem;
}
footer .footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  justify-content: space-between;
  align-items: center;
}
footer a { color: var(--ink-2); }
footer .footer-links a { margin-right: 1.2rem; }

/* pricing */
.tiers {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 760px) {
  .tiers { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1100px) {
  .tiers { grid-template-columns: repeat(5, 1fr); }
}
.tier {
  background: var(--ground-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1.3rem;
  display: flex;
  flex-direction: column;
}
.tier.featured {
  border-color: var(--accent);
}
.tier .tier-name {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.6rem;
}
.tier.featured .tier-name { color: var(--accent); }
.tier .tier-price {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 0.2rem;
  line-height: 1.1;
}
.tier .tier-price small {
  font-size: 0.78rem;
  color: var(--ink-3);
  font-weight: 400;
}
.tier .tier-sub {
  color: var(--ink-3);
  font-size: 0.8rem;
  margin: 0 0 1rem;
}
.tier ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.4rem;
  font-size: 0.88rem;
  color: var(--ink-2);
}
.tier li {
  padding: 0.32rem 0;
  border-bottom: 1px solid var(--rule);
}
.tier li:last-child { border-bottom: 0; }
.tier li .k { color: var(--ink-3); }
.tier .tier-cta {
  margin-top: auto;
}
.tier .tier-cta .btn {
  width: 100%;
  text-align: center;
}

/* capability table */
.capabilities {
  margin-top: 3rem;
  overflow-x: auto;
}
.capabilities table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.capabilities th, .capabilities td {
  text-align: left;
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--rule);
}
.capabilities th {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  font-weight: 500;
  background: var(--ground-2);
}
.capabilities td.feat { color: var(--ink); }
.capabilities td.yes  { color: var(--accent); text-align: center; }
.capabilities td.no   { color: var(--ink-3); text-align: center; }
.capabilities td.partial { color: var(--ink-2); text-align: center; font-size: 0.82rem; }

/* docs */
.doc-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 880px) {
  .doc-layout { grid-template-columns: 200px 1fr; }
}
.doc-toc {
  font-size: 0.88rem;
  position: sticky;
  top: 4rem;
  align-self: start;
}
.doc-toc ul { list-style: none; padding: 0; margin: 0; }
.doc-toc li { margin-bottom: 0.4rem; }
.doc-toc a { color: var(--ink-2); }
.doc-toc .toc-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  margin-bottom: 0.6rem;
}
.doc-body h2 {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  margin: 2.4rem 0 0.8rem;
}
.doc-body h2:first-child { margin-top: 0; }
.doc-body h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  margin: 1.6rem 0 0.5rem;
}
.doc-body p, .doc-body li {
  color: var(--ink-2);
}
.doc-body pre {
  background: var(--ground-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
  color: var(--ink);
  margin: 1rem 0;
}
.doc-body code {
  background: var(--ground-2);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-size: 0.88em;
  color: var(--ink);
}
.doc-body pre code { background: transparent; padding: 0; }
.doc-body .callout {
  border-left: 3px solid var(--accent);
  background: var(--ground-2);
  padding: 0.9rem 1.1rem;
  margin: 1.4rem 0;
  font-size: 0.92rem;
  color: var(--ink-2);
}

/* contact form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 820px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}
.form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 0.35rem;
}
.field input, .field textarea, .field select {
  width: 100%;
  background: var(--ground-2);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 0.65rem 0.8rem;
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 0.95rem;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--accent);
}
.field textarea { min-height: 8rem; resize: vertical; }
.contact-side h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  margin: 0 0 0.6rem;
}
.contact-side p { color: var(--ink-2); margin: 0 0 1.2rem; }
.contact-side .info-row {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}
.contact-side .info-row .k { color: var(--ink-3); }
.contact-side .info-row .v { color: var(--ink); text-align: right; }

/* 404 */
.notfound {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.notfound .card {
  text-align: center;
  max-width: 30rem;
}
.notfound .code {
  font-family: var(--font-mono);
  font-size: 4rem;
  color: var(--accent);
  margin-bottom: 0.4rem;
  letter-spacing: -0.03em;
}
.notfound h1 {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  margin: 0 0 1rem;
}
.notfound p { color: var(--ink-2); margin-bottom: 1.5rem; }

/* utility */
.rule { height: 1px; background: var(--rule); margin: 2.5rem 0; border: 0; }
.muted { color: var(--ink-3); }
.mono { font-family: var(--font-mono); }

/* blog list */
.blog-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
.blog-list-item {
  background: var(--ground-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1.4rem 1.5rem;
}
.blog-list-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.4rem;
}
.blog-list-item h3 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  margin: 0 0 0.5rem;
}
.blog-list-item h3 a { color: var(--ink); }
.blog-list-item h3 a:hover { color: var(--accent); text-decoration: none; }
.blog-list-item p { color: var(--ink-2); margin: 0; font-size: 0.92rem; }

/* prose tweaks for blog + tessera + terms pages */
.doc-body h1,
.doc-body h2,
.doc-body h3 {
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
  color: var(--ink);
}
.doc-body h1 { font-size: 1.7rem; margin: 1.8rem 0 1rem; }
.doc-body h2 { font-size: 1.3rem; margin: 2.2rem 0 0.8rem; }
.doc-body h3 { font-size: 1.05rem; margin: 1.6rem 0 0.6rem; }
.doc-body p { color: var(--ink-2); }
.doc-body ul, .doc-body ol { color: var(--ink-2); padding-left: 1.4rem; }
.doc-body li { margin: 0.3rem 0; }
.doc-body code {
  background: var(--ground-2);
  padding: 0.05rem 0.32rem;
  border-radius: 3px;
  font-size: 0.88em;
  color: var(--ink);
  border: 1px solid var(--rule);
}
.doc-body pre {
  background: var(--ground-2);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--ink-2);
}
.doc-body pre code {
  background: transparent;
  border: 0;
  padding: 0;
  font-size: inherit;
}
.doc-body blockquote {
  border-left: 3px solid var(--rule-2);
  padding: 0.2rem 1rem;
  color: var(--ink-3);
  margin: 1.2rem 0;
}