/* TrustScore API — shared design tokens & components
   Direction: verification checkpoint / ledger paper / ink stamp.
   Mono voice for anything the machine says (data, verdicts, code);
   humanist sans for anything a person says (copy, explanation). */

:root {
  --paper: #e7e2d3;
  --paper-raised: #f3efe3;
  --ink: #201d16;
  --ink-soft: #55503f;
  --ink-faint: #8a836c;
  --rule: #c7bea3;
  --rule-strong: #a89d7c;

  --stamp-green: #2f5d3a;
  --stamp-green-bg: #dde6d5;
  --stamp-amber: #8a5f18;
  --stamp-amber-bg: #ecdfbd;
  --stamp-red: #9c2b22;
  --stamp-red-bg: #ecd6cf;

  --brand: #1f4b44;
  --brand-bright: #2f7264;

  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --sans: "IBM Plex Sans", -apple-system, "Segoe UI", sans-serif;

  --max-w: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  background-image: radial-gradient(rgba(32, 29, 22, 0.035) 1px, transparent 1px);
  background-size: 3px 3px;
}

a {
  color: var(--brand);
}
a:hover {
  color: var(--brand-bright);
}

::selection {
  background: var(--ink);
  color: var(--paper);
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.mono {
  font-family: var(--mono);
}

/* ---------- top bar ---------- */

.topbar {
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  background: var(--paper);
  z-index: 20;
}
.topbar .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--stamp-green);
  box-shadow: 0 0 0 3px var(--stamp-green-bg);
}
.topnav {
  display: flex;
  gap: 28px;
  font-family: var(--mono);
  font-size: 13.5px;
}
.topnav a {
  text-decoration: none;
  color: var(--ink-soft);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}
.topnav a:hover,
.topnav a.active {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  padding: 11px 20px;
  border-radius: 3px;
  text-decoration: none;
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn-primary {
  background: var(--ink);
  color: var(--paper-raised);
}
.btn-primary:hover {
  color: var(--paper-raised);
  box-shadow: 3px 3px 0 var(--rule-strong);
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule-strong);
}
.btn-ghost:hover {
  color: var(--ink);
  border-color: var(--ink);
}

/* ---------- hero ---------- */

.hero {
  padding: 76px 0 64px;
  border-bottom: 1px solid var(--rule);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 880px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 18px;
}
.eyebrow::before {
  content: "// ";
  color: var(--rule-strong);
}

h1.headline {
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(34px, 4.6vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 22px;
}
h1.headline .stamp-word {
  color: var(--brand);
}

.sub {
  font-size: 17.5px;
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 0 0 30px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 34px;
}

.hero-meta {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-faint);
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.hero-meta span::before {
  content: "· ";
  color: var(--rule-strong);
}
.hero-meta span:first-child::before {
  content: "";
}

/* ---------- demo terminal ---------- */

.terminal {
  background: var(--ink);
  color: var(--paper-raised);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 6px 6px 0 var(--rule-strong);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(243, 239, 227, 0.12);
}
.terminal-bar .tdot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(243, 239, 227, 0.25);
}
.terminal-bar .tlabel {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(243, 239, 227, 0.55);
}
.terminal-body {
  padding: 20px 18px 22px;
}
.tfield {
  margin-bottom: 12px;
}
.tfield label {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  color: rgba(243, 239, 227, 0.5);
  margin-bottom: 5px;
}
.tfield input {
  width: 100%;
  background: rgba(243, 239, 227, 0.06);
  border: 1px solid rgba(243, 239, 227, 0.18);
  border-radius: 3px;
  color: var(--paper-raised);
  font-family: var(--mono);
  font-size: 13.5px;
  padding: 9px 10px;
}
.tfield input::placeholder {
  color: rgba(243, 239, 227, 0.28);
}
.tfield input:focus-visible {
  outline: 1.5px solid var(--stamp-green);
  outline-offset: 0;
}

.tsend {
  width: 100%;
  margin-top: 4px;
  background: var(--paper-raised);
  color: var(--ink);
  border: none;
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 13.5px;
  font-weight: 600;
  padding: 11px;
  cursor: pointer;
}
.tsend:hover {
  background: #fff;
}
.tsend:disabled {
  opacity: 0.5;
  cursor: default;
}

.tresult {
  margin-top: 18px;
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.thint {
  font-family: var(--mono);
  font-size: 12px;
  color: rgba(243, 239, 227, 0.35);
  text-align: center;
}

/* the stamp itself */
.stamp {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 26px;
  letter-spacing: 0.06em;
  padding: 10px 22px;
  border: 3px solid currentColor;
  border-radius: 4px;
  transform: rotate(-4deg) scale(0.85);
  opacity: 0;
  text-transform: uppercase;
}
.stamp.show {
  animation: stampdown 0.32s cubic-bezier(0.2, 0.9, 0.35, 1.2) forwards;
}
.stamp.allow {
  color: #b9e2a8;
}
.stamp.review {
  color: #f0cf87;
}
.stamp.block {
  color: #f0a99b;
}
.stamp-score {
  display: block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-top: 6px;
  opacity: 0.75;
  text-align: center;
}
@keyframes stampdown {
  0% {
    opacity: 0;
    transform: rotate(-14deg) scale(1.6);
  }
  60% {
    opacity: 1;
    transform: rotate(-4deg) scale(0.92);
  }
  100% {
    opacity: 1;
    transform: rotate(-4deg) scale(1);
  }
}
.terror {
  font-family: var(--mono);
  font-size: 12.5px;
  color: #f0a99b;
  text-align: center;
}

/* ---------- sections ---------- */

section {
  padding: 64px 0;
  border-bottom: 1px solid var(--rule);
}
section:last-of-type {
  border-bottom: none;
}
.section-head {
  max-width: 60ch;
  margin-bottom: 40px;
}
.section-label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 10px;
}
h2 {
  font-family: var(--mono);
  font-size: clamp(24px, 3vw, 30px);
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}
.section-head p {
  color: var(--ink-soft);
  margin: 0;
  font-size: 16px;
}

/* lanes (parallel signals -> gate) */
.lanes {
  display: grid;
  grid-template-columns: repeat(3, 1fr) auto;
  gap: 0;
  align-items: center;
}
@media (max-width: 880px) {
  .lanes {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .lanes .gate-arrow {
    display: none;
  }
}
.lane {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 20px;
  margin-right: -1px;
}
.lane .lane-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.lane h3 {
  font-family: var(--mono);
  font-size: 15px;
  margin: 0 0 8px;
}
.lane p {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0;
}
.gate-arrow {
  font-family: var(--mono);
  font-size: 22px;
  color: var(--ink-faint);
  padding: 0 18px;
}

.formula {
  margin-top: 28px;
  font-family: var(--mono);
  font-size: 13.5px;
  color: var(--ink-soft);
  background: var(--paper-raised);
  border: 1px dashed var(--rule-strong);
  border-radius: 4px;
  padding: 16px 18px;
}
.formula b {
  color: var(--ink);
}

/* comparison */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 780px) {
  .compare {
    grid-template-columns: 1fr;
  }
}
.compare-card {
  border: 1px solid var(--rule);
  border-radius: 6px;
  overflow: hidden;
  background: var(--paper-raised);
}
.compare-head {
  padding: 14px 18px;
  font-family: var(--mono);
  font-size: 12.5px;
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.compare-card.bad .compare-head {
  color: var(--stamp-red);
}
.compare-card.good .compare-head {
  color: var(--stamp-green);
}
.compare pre {
  margin: 0;
  padding: 18px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
  overflow-x: auto;
  color: var(--ink);
}
.compare-card.bad pre {
  color: var(--ink-soft);
}

/* code block generic */
pre.code {
  background: var(--ink);
  color: var(--paper-raised);
  border-radius: 6px;
  padding: 18px 20px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
}
code.inline {
  font-family: var(--mono);
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 1px 6px;
  font-size: 0.9em;
}

/* audience split */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 780px) {
  .split {
    grid-template-columns: 1fr;
  }
}
.split-card {
  padding: 24px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--paper-raised);
}
.split-card .lane-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.split-card h3 {
  font-family: var(--mono);
  margin: 0 0 10px;
}
.split-card p {
  color: var(--ink-soft);
  font-size: 14.5px;
  margin: 0 0 14px;
}

.badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 3px;
  border: 1px solid var(--rule-strong);
  color: var(--ink-soft);
}

/* cta */
.cta {
  text-align: center;
  padding: 72px 0;
}
.cta h2 {
  margin-bottom: 14px;
}
.cta p {
  color: var(--ink-soft);
  margin: 0 0 30px;
}
.cta-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* footer */
footer {
  border-top: 1px solid var(--rule);
  padding: 28px 0;
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-faint);
}
footer a {
  color: var(--ink-soft);
  text-decoration: none;
}
footer a:hover {
  color: var(--ink);
}
footer .flinks {
  display: flex;
  gap: 18px;
}

/* ---------- docs page ---------- */

.docs-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  padding: 44px 0 90px;
  align-items: start;
}
@media (max-width: 880px) {
  .docs-layout {
    grid-template-columns: 1fr;
  }
}
.docs-nav {
  position: sticky;
  top: 84px;
  font-family: var(--mono);
  font-size: 13px;
}
.docs-nav .group-title {
  color: var(--ink-faint);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 18px 0 8px;
}
.docs-nav .group-title:first-child {
  margin-top: 0;
}
.docs-nav a {
  display: block;
  color: var(--ink-soft);
  text-decoration: none;
  padding: 4px 0;
  border-left: 2px solid transparent;
  padding-left: 10px;
  margin-left: -10px;
}
.docs-nav a:hover {
  color: var(--ink);
}

.docs-main h1 {
  font-family: var(--mono);
  font-size: 30px;
  margin: 0 0 10px;
}
.docs-lede {
  color: var(--ink-soft);
  font-size: 16px;
  max-width: 60ch;
  margin: 0 0 36px;
}
.docs-main h2 {
  font-size: 21px;
  margin: 44px 0 14px;
  padding-top: 6px;
  border-top: 1px solid var(--rule);
}
.docs-main h2:first-of-type {
  border-top: none;
  padding-top: 0;
  margin-top: 0;
}
.docs-main h3 {
  font-family: var(--mono);
  font-size: 16px;
  margin: 26px 0 10px;
}
.docs-main p {
  color: var(--ink-soft);
  font-size: 15px;
  max-width: 68ch;
}
.docs-main table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
  margin: 14px 0 22px;
}
.docs-main th,
.docs-main td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
.docs-main th {
  font-family: var(--mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}
.docs-main td code {
  font-family: var(--mono);
  font-size: 12.5px;
}
.docs-main ul {
  color: var(--ink-soft);
  font-size: 15px;
  max-width: 68ch;
}
.callout {
  border-left: 3px solid var(--rule-strong);
  background: var(--paper-raised);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--ink-soft);
  border-radius: 0 4px 4px 0;
  margin: 16px 0;
}

.tester-box {
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--paper-raised);
  padding: 20px;
  margin: 20px 0 30px;
}
.tester-box .lane-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.tester-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
@media (max-width: 560px) {
  .tester-grid {
    grid-template-columns: 1fr;
  }
}
.tester-box .tfield input {
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  color: var(--ink);
}
.tester-box .tfield input::placeholder {
  color: var(--ink-faint);
}
.tester-box .tfield label {
  color: var(--ink-faint);
}
.tester-box .tsend {
  width: auto;
  padding: 10px 22px;
  background: var(--ink);
  color: var(--paper-raised);
}
.tester-box .tsend:hover {
  background: #000;
}
.tester-box .tresult {
  justify-content: flex-start;
  min-height: 0;
  margin-top: 16px;
}
.tester-box .stamp.allow {
  color: var(--stamp-green);
}
.tester-box .stamp.review {
  color: var(--stamp-amber);
}
.tester-box .stamp.block {
  color: var(--stamp-red);
}
.tester-box .terror {
  color: var(--stamp-red);
}