:root {
  color-scheme: light;
  --bg: #fafaf8;
  --surface: #ffffff;
  --surface-soft: #f9fcff;
  --surface-ink: #111827;
  --text: #111111;
  --muted: #5f6b7a;
  --line: rgba(0, 0, 0, 0.1);
  --line-strong: rgba(0, 0, 0, 0.14);
  --accent: #e8601c;
  --accent-dark: #d45414;
  --brand: #17325f;
  --blue: #2455d6;
  --green: #188657;
  --yellow: #b7791f;
  --red: #bd3a3a;
  --shadow: none;
  --shadow-soft: none;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--bg);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  letter-spacing: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 10;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-200%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 12px;
  background: var(--surface);
  color: var(--text);
}

.skip-link:focus-visible {
  width: auto;
  height: auto;
  overflow: visible;
  clip-path: none;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

main > section {
  width: min(1060px, 92%);
  margin: 0 auto;
}

.site-nav {
  width: min(var(--kh-nav-rail, 1061px), 92%);
  max-width: var(--kh-nav-rail, 1061px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 0;
  gap: 18px;
  margin: 12px auto 0;
  border: 1px solid rgba(15, 23, 42, 0.09);
  border-radius: 26px;
  padding: 8px 14px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.97) 0%, rgba(249, 250, 252, 0.92) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.96),
    0 1px 2px rgba(15, 23, 42, 0.05),
    0 14px 34px rgba(15, 23, 42, 0.08),
    0 34px 80px rgba(15, 23, 42, 0.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: relative;
  z-index: 5;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  justify-self: start;
  margin-right: 18px;
  min-width: 0;
  padding-right: 24px;
  position: relative;
  z-index: 1;
}

.brand img:first-child {
  display: block;
  width: 32px;
  height: 32px;
  border-radius: 11px;
  object-fit: cover;
  flex: 0 0 auto;
}

.brand img:last-child {
  height: 23px;
  width: auto;
}

.brand::after {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  width: 1px;
  height: 30px;
  transform: translateY(-50%);
  background: rgba(15, 23, 42, 0.12);
}

.site-nav nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.site-nav nav {
  justify-self: center;
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 0;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 999px;
  padding: 3px;
  background: rgba(15, 23, 42, 0.04);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.site-nav nav:has(a:only-child) {
  min-width: 196px;
}

.site-nav nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 999px;
  min-height: 38px;
  padding: 0 18px;
  background: transparent;
  color: #4d5c71;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1;
  transition:
    background-color 160ms ease,
    color 160ms ease,
    box-shadow 160ms ease,
    transform 160ms ease;
}

.site-nav nav a:hover {
  border-color: transparent;
  background: rgba(255, 255, 255, 0.82);
  color: #111111;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  justify-self: end;
  min-height: 38px;
  border: 1px solid #17325f;
  border-radius: 999px;
  padding: 0 18px;
  background: linear-gradient(180deg, #254476 0%, #17325f 100%);
  color: #ffffff;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 10px 18px rgba(23, 50, 95, 0.22);
  transition: transform 150ms ease, background-color 150ms ease, box-shadow 150ms ease;
  position: relative;
  z-index: 1;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  transform: translateY(-1px);
  background: linear-gradient(180deg, #1e3a68 0%, #12294f 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 14px 24px rgba(23, 50, 95, 0.28);
  outline: none;
}

.hero {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: 32px;
  padding: 70px 0 38px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -14px 50% -24px auto;
  z-index: 0;
  width: 100vw;
  transform: translateX(50%);
  background:
    radial-gradient(circle at 0% 0%, rgba(255, 196, 143, 0.28) 0%, rgba(255, 196, 143, 0) 34%),
    radial-gradient(circle at 100% 8%, rgba(146, 175, 230, 0.2) 0%, rgba(146, 175, 230, 0) 30%),
    linear-gradient(180deg, #fffefb 0%, #f9fbff 54%, #f1f6fc 100%);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.hero::after {
  content: "";
  position: absolute;
  inset: -14px 50% -24px auto;
  z-index: 0;
  width: 100vw;
  transform: translateX(50%);
  background-image:
    linear-gradient(rgba(72, 96, 132, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(72, 96, 132, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.22) 0%, rgba(0, 0, 0, 0) 80%);
  pointer-events: none;
}

.hero > * {
  position: relative;
  z-index: 1;
}

.hero-heading {
  display: grid;
  justify-items: center;
  gap: 18px;
  max-width: 690px;
  margin: 0 auto;
  text-align: center;
}

.hero-body {
  display: grid;
  gap: 18px;
  width: min(100%, 900px);
  margin: 0 auto;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: var(--radius);
  padding: 22px 24px 24px;
  background:
    linear-gradient(90deg, rgba(255, 247, 239, 0.78) 0%, rgba(255, 255, 255, 0.94) 42%, rgba(243, 248, 255, 0.96) 100%),
    linear-gradient(rgba(23, 50, 95, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 50, 95, 0.032) 1px, transparent 1px);
  background-size: auto, 34px 34px, 34px 34px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.gate-form,
.result-panel,
.packet-output,
.primitive-grid article,
.integration-strip,
.use-case-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.eyebrow,
.panel-label,
.flow-node span,
.use-case-grid span {
  display: inline-flex;
  align-items: center;
  color: var(--blue);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1,
h2,
h3 {
  font-family: Inter, system-ui, sans-serif;
  letter-spacing: 0;
}

h1 {
  max-width: 100%;
  margin-top: 14px;
  color: #17181b;
  font-size: clamp(2.7rem, 4.2vw, 3.85rem);
  font-weight: 600;
  line-height: 0.94;
}

.hero-title-line {
  display: block;
}

h2 {
  font-size: clamp(1.62rem, 2.12vw, 2.05rem);
  line-height: 1.03;
}

h3 {
  font-size: 1.06rem;
  line-height: 1.15;
}

.hero-lede,
.section-heading p,
.flow-node p,
.use-case-grid p,
.wallet-status {
  color: var(--muted);
  line-height: 1.6;
}

.hero-lede {
  max-width: 660px;
  margin-top: 0;
  color: #596779;
  font-size: 1.04rem;
  line-height: 1.58;
}

.hero-actions,
.form-actions,
.anchor-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.hero-actions {
  justify-content: center;
}

.hero-proof-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  width: min(100%, 760px);
}

.hero-proof-strip div {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 13px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: none;
}

.hero-proof-strip span {
  display: block;
  color: var(--blue);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.66rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-proof-strip strong {
  display: inline;
  margin-top: 0;
  color: #243149;
  font-size: 0.75rem;
  line-height: 1.2;
}

.button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 0.68rem 1.1rem;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1;
  color: var(--text);
  background: var(--surface);
  box-shadow: none;
  transition: transform 150ms ease, border-color 150ms ease, background-color 150ms ease, box-shadow 150ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  border-color: #9fb1c9;
  outline: none;
}

.button.primary {
  border-color: var(--accent);
  color: #ffffff;
  background: var(--accent);
  box-shadow: none;
}

.button.primary:hover,
.button.primary:focus-visible {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
  box-shadow: none;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.9);
}

.hero-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  width: 100%;
}

.flow-node {
  position: relative;
  display: grid;
  align-content: start;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-height: 132px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: none;
}

.flow-node.is-active {
  border-color: rgba(36, 85, 214, 0.24);
  background: #f7faff;
}

.flow-node span {
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid #cfdbef;
  border-radius: 12px;
  background: #e5edff;
  color: #31466b;
  font-size: 0.76rem;
  font-weight: 700;
}

.flow-node strong {
  font-size: 0.98rem;
  line-height: 1.14;
}

.flow-node p {
  color: #596779;
  font-size: 0.84rem;
  line-height: 1.35;
}

.hero-artifact-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.hero-artifact-topline > span:last-child,
.packet-artifact-topline > span:last-child {
  color: #575b64;
  font-size: 0.95rem;
  font-weight: 650;
}

.demo-section,
.packet-section,
.primitive-section,
.use-cases {
  padding: 44px 0;
}

.demo-section {
  padding-top: 34px;
}

.primitive-section,
.use-cases {
  background: #ffffff;
  box-shadow: 0 0 0 100vmax #ffffff;
  clip-path: inset(0 -100vmax);
}

.section-heading {
  display: grid;
  gap: 12px;
  margin-bottom: 22px;
}

.section-heading p {
  max-width: none;
}

.demo-section .section-heading p {
  max-width: none;
}

.demo-section h2,
.packet-section h2,
.primitive-section h2,
.use-cases h2 {
  font-size: clamp(2.1rem, 3.2vw, 2.8rem);
  line-height: 0.96;
}

.demo-grid {
  display: grid;
  grid-template-columns: minmax(290px, 0.85fr) minmax(330px, 1.15fr);
  gap: 18px 22px;
  align-items: stretch;
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: var(--radius);
  padding: 24px;
  background:
    linear-gradient(rgba(23, 50, 95, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 50, 95, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 247, 239, 0.74) 0%, rgba(255, 255, 255, 0.96) 42%, rgba(243, 248, 255, 0.96) 100%);
  background-size: 34px 34px, 34px 34px, auto;
}

.demo-artifact-topline {
  grid-column: 1 / -1;
  margin-bottom: 2px;
}

.demo-artifact-topline > span:last-child {
  color: #575b64;
  font-size: 0.95rem;
  font-weight: 650;
}

.gate-form,
.result-panel {
  padding: clamp(18px, 2.3vw, 24px);
  height: 100%;
  background: rgba(255, 255, 255, 0.92);
}

.gate-form {
  display: grid;
  gap: 16px;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field-group {
  display: grid;
  gap: 8px;
}

.field-label-row {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 6px;
}

label,
legend {
  color: #2c3a4f;
  font-size: 0.8rem;
  font-weight: 760;
}

.info-button {
  display: inline-grid;
  place-items: center;
  width: 17px;
  height: 17px;
  border: 1px solid #c9d6e7;
  border-radius: 50%;
  padding: 0;
  background: #f6f9fd;
  color: var(--muted);
  cursor: help;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.62rem;
  font-weight: 700;
  line-height: 1;
}

.info-button:hover,
.info-button:focus-visible {
  border-color: var(--blue);
  color: var(--blue);
  outline: none;
}

.field-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  z-index: 5;
  width: min(280px, calc(100vw - 48px));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 9px 10px;
  background: var(--surface-ink);
  color: #f4f7fb;
  box-shadow: 0 14px 34px rgba(16, 24, 40, 0.18);
  font-size: 0.72rem;
  font-weight: 620;
  line-height: 1.42;
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 120ms ease, transform 120ms ease;
  visibility: hidden;
}

.info-button:hover + .field-tooltip,
.info-button:focus-visible + .field-tooltip {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  font-size: 0.92rem;
}

textarea {
  min-height: 74px;
  line-height: 1.35;
  overflow: hidden;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--blue);
  outline: 3px solid rgba(36, 85, 214, 0.14);
}

.field-group.is-invalid label {
  color: var(--red);
}

.field-group.is-invalid input,
.field-group.is-invalid select,
.field-group.is-invalid textarea {
  border-color: rgba(189, 58, 58, 0.72);
  background: #fff7f7;
}

.field-group.is-invalid input:focus,
.field-group.is-invalid select:focus,
.field-group.is-invalid textarea:focus {
  border-color: var(--red);
  outline-color: rgba(189, 58, 58, 0.14);
}

.field-group.is-warning input,
.field-group.is-warning select,
.field-group.is-warning textarea {
  border-color: rgba(183, 121, 31, 0.58);
  background: #fffcf5;
}

.field-feedback {
  margin: -2px 0 0;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
  line-height: 1.35;
}

.field-feedback.is-error {
  color: var(--red);
}

.field-feedback.is-warning {
  color: var(--yellow);
}

.gate-form-status {
  margin: -2px 0 0;
  border-radius: var(--radius);
  padding: 9px 11px;
  background: #f8fafc;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 650;
  line-height: 1.4;
}

.gate-form-status.is-error {
  background: #fff0f0;
  color: var(--red);
}

.gate-form-status.is-warning {
  background: #fff8e8;
  color: #77510f;
}

fieldset {
  display: grid;
  gap: 10px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  background: rgba(255, 255, 255, 0.56);
}

legend {
  padding: 0 6px;
}

.check-row {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  color: var(--text);
  font-weight: 600;
}

.check-row input {
  width: 18px;
  min-height: 18px;
  margin-top: 2px;
}

.verdict-factors {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  background: rgba(255, 255, 255, 0.68);
}

.factor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.factor-grid span {
  border: 1px solid #dde7f3;
  border-radius: var(--radius);
  padding: 7px 10px;
  background: #ffffff;
  color: #314158;
  font-size: 0.74rem;
  font-weight: 720;
  line-height: 1.2;
}

.scenario-presets {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  background: rgba(255, 255, 255, 0.68);
}

.preset-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.preset-button {
  min-height: 36px;
  border: 1px solid #dde7f3;
  border-radius: var(--radius);
  background: #ffffff;
  color: #314158;
  cursor: pointer;
  font-size: 0.76rem;
  font-weight: 760;
  line-height: 1;
  transition: border-color 150ms ease, background-color 150ms ease, color 150ms ease;
}

.preset-button:hover,
.preset-button:focus-visible {
  border-color: #9fb1c9;
  outline: none;
}

.preset-button.is-active {
  border-color: rgba(36, 85, 214, 0.4);
  background: #eaf1ff;
  color: #1f3f8a;
}

.result-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 18px;
}

.result-head strong {
  display: block;
  margin-top: 6px;
  font-family: Inter, sans-serif;
  font-size: clamp(1.9rem, 3.2vw, 2.62rem);
  line-height: 0.94;
}

.confidence-pill {
  display: inline-flex;
  border-radius: 999px;
  padding: 8px 10px;
  background: #e9f8ef;
  color: var(--green);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.76rem;
  font-weight: 650;
  white-space: nowrap;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.metric-grid div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 13px 14px;
  background: rgba(255, 255, 255, 0.78);
}

.metric-grid dt {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
}

.metric-grid dd {
  margin: 7px 0 0;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  font-weight: 650;
  overflow-wrap: anywhere;
}

.gate-reasons {
  display: grid;
  gap: 8px;
  align-content: start;
  min-height: 212px;
}

.reason-item {
  border: 1px solid #bde9c8;
  border-radius: var(--radius);
  padding: 11px 12px;
  background: #f2fff6;
  color: #244133;
  font-size: 0.84rem;
  line-height: 1.45;
}

.result-panel[data-verdict="DEFER"] .reason-item {
  border-color: rgba(183, 121, 31, 0.32);
  background: #fff8e8;
  color: #77510f;
}

.result-panel[data-verdict="DEFER"] .confidence-pill {
  background: #fff8e8;
  color: #77510f;
}

.result-panel[data-verdict="BLOCK"] .reason-item {
  border-color: rgba(189, 58, 58, 0.32);
  background: #fff0f0;
  color: #8b2525;
}

.result-panel[data-verdict="BLOCK"] .confidence-pill {
  background: #fff0f0;
  color: #8b2525;
}

.memo-preview {
  display: grid;
  gap: 8px;
  margin-top: auto;
}

.memo-preview code {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: var(--surface-ink);
  color: #f4f7fb;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.wallet-status {
  margin: 0;
  font-size: 0.82rem;
}

.wallet-status.is-error {
  color: var(--red);
}

.wallet-status.is-ok {
  color: var(--green);
}

.explorer-link {
  justify-self: start;
  color: var(--blue);
  font-weight: 760;
}

.packet-output {
  margin: 0;
  max-height: 380px;
  overflow: auto;
  border: 1px solid rgba(15, 23, 42, 0.1);
  padding: 22px;
  color: #eaf1ff;
  background: #111827;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
  line-height: 1.54;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.packet-artifact {
  display: grid;
  gap: 14px;
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: var(--radius);
  padding: 22px;
  background:
    linear-gradient(rgba(23, 50, 95, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 50, 95, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 247, 239, 0.68) 0%, rgba(255, 255, 255, 0.95) 45%, rgba(243, 248, 255, 0.95) 100%);
  background-size: 34px 34px, 34px 34px, auto;
}

.packet-artifact .packet-output {
  border-color: transparent;
}

.execution-artifact {
  --artifact-module-height: 258px;
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: var(--radius);
  padding: 22px 24px 24px;
  background:
    linear-gradient(90deg, rgba(255, 247, 239, 0.78) 0%, rgba(255, 255, 255, 0.94) 42%, rgba(243, 248, 255, 0.96) 100%),
    linear-gradient(rgba(23, 50, 95, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 50, 95, 0.035) 1px, transparent 1px);
  background-size: auto, 34px 34px, 34px 34px;
  display: grid;
  gap: 22px;
  overflow: hidden;
}

.artifact-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.artifact-topline a {
  color: #575b64;
  font-size: 1rem;
  font-weight: 650;
}

.artifact-topline a:hover {
  color: #111111;
}

.artifact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  justify-content: flex-end;
}

.artifact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.16fr) minmax(0, 0.92fr);
  gap: 28px;
  align-items: start;
}

.artifact-column {
  display: grid;
  align-content: start;
  gap: 10px;
  grid-template-rows: auto minmax(44px, auto) var(--artifact-module-height);
}

.artifact-kicker,
.artifact-mini-card span,
.artifact-winner span,
.artifact-stat-grid span,
.artifact-ready-head span,
.artifact-row span,
.artifact-chip-row span {
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

.artifact-kicker {
  color: #697181;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.artifact-column > p {
  color: #747985;
  font-size: 0.92rem;
  line-height: 1.42;
  max-width: 34ch;
}

.artifact-stack {
  display: grid;
  gap: 10px;
  grid-template-rows: repeat(3, minmax(0, 1fr));
  height: var(--artifact-module-height);
}

.artifact-mini-card,
.artifact-row,
.artifact-ready-card,
.artifact-winner,
.artifact-stat-grid div,
.artifact-chip-row span {
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
}

.artifact-mini-card {
  align-content: center;
  display: grid;
  padding: 12px 16px;
}

.artifact-mini-card span,
.artifact-winner span,
.artifact-stat-grid span {
  display: block;
  color: #8994a7;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.artifact-mini-card strong {
  display: block;
  margin-top: 5px;
  color: #17181b;
  font-size: 0.98rem;
  line-height: 1.18;
}

.artifact-review-card {
  border: 1px solid rgba(15, 23, 42, 0.1);
  border-radius: var(--radius);
  align-content: center;
  display: grid;
  height: var(--artifact-module-height);
  padding: 18px;
  background: rgba(255, 255, 255, 0.94);
}

.artifact-review-head,
.artifact-ready-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.artifact-review-head {
  justify-content: space-between;
  margin-bottom: 14px;
}

.artifact-review-head strong,
.artifact-ready-head strong {
  color: #17181b;
  font-size: 1.12rem;
  line-height: 1.1;
}

.artifact-review-head span,
.artifact-ready-head span {
  border: 1px solid #cbd8ee;
  border-radius: 999px;
  padding: 7px 11px;
  background: #eef5ff;
  color: #31466b;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
}

.artifact-row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 12px;
}

.artifact-row + .artifact-row {
  margin-top: 8px;
}

.artifact-row span {
  color: #8994a7;
  font-size: 0.72rem;
  font-weight: 700;
}

.artifact-row strong {
  color: #17181b;
  font-size: 1rem;
  line-height: 1.2;
}

.artifact-ready-card {
  display: grid;
  gap: 12px;
  grid-template-rows: auto 1fr auto;
  height: var(--artifact-module-height);
  padding: 18px;
}

.artifact-ready-head img {
  border-radius: 6px;
}

.artifact-ready-head span {
  margin-left: auto;
  border-color: #bde9c8;
  background: #effaf2;
  color: #2b8a47;
}

.artifact-winner {
  align-content: center;
  border-color: #bde9c8;
  padding: 15px 16px;
  background: #f2fff6;
}

.artifact-winner span {
  color: #2f8a58;
}

.artifact-winner strong {
  display: block;
  margin-top: 8px;
  color: #17181b;
  font-size: 1rem;
  line-height: 1.2;
}

.artifact-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.artifact-stat-grid div {
  padding: 13px 14px;
}

.artifact-stat-grid strong {
  display: block;
  margin-top: 7px;
  color: #17181b;
  font-size: 0.96rem;
  line-height: 1.2;
}

.artifact-chip-row {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.artifact-chip-row span {
  padding: 8px 14px;
  color: #696f7b;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}

.primitive-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.primitive-grid article {
  display: grid;
  align-content: start;
  gap: 18px;
  min-height: 248px;
  padding: 28px;
  box-shadow: none;
}

.primitive-grid span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid #cfdbef;
  border-radius: 12px;
  background: #e5edff;
  color: #31466b;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.82rem;
  font-weight: 700;
}

.primitive-grid p,
.integration-strip p,
.use-case-grid p {
  color: #6e6e6e;
  font-size: 1.08rem;
  line-height: 1.56;
}

.primitive-grid h3,
.use-case-grid h3 {
  font-size: 1.18rem;
  line-height: 1.18;
}

.integration-strip {
  display: grid;
  grid-template-columns: minmax(240px, 0.7fr) minmax(0, 1.3fr);
  gap: 28px;
  align-items: center;
  margin-top: 24px;
  padding: 26px 28px;
  background:
    linear-gradient(90deg, rgba(255, 247, 239, 0.76) 0%, rgba(255, 255, 255, 0.92) 42%, rgba(244, 249, 255, 0.96) 100%);
  box-shadow: none;
}

.integration-strip p {
  margin-top: 10px;
  max-width: 360px;
}

.integration-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.integration-strip pre {
  margin: 0;
  overflow: auto;
  border-radius: var(--radius);
  padding: 16px;
  background: var(--surface-ink);
  color: #eaf1ff;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  line-height: 1.6;
}

.integration-strip code {
  display: block;
  font-family: inherit;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  counter-reset: use-case;
}

.use-case-grid article {
  display: grid;
  align-content: start;
  gap: 14px;
  min-height: 248px;
  padding: 28px;
  box-shadow: none;
  counter-increment: use-case;
}

.use-case-grid article::before {
  content: counter(use-case);
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 2px;
  border: 1px solid #cfdbef;
  border-radius: 12px;
  background: #e5edff;
  color: #31466b;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.82rem;
  font-weight: 700;
}

.use-case-grid span {
  color: var(--blue);
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.proof-loop {
  display: grid;
  gap: 20px;
}

.proof-loop .section-heading {
  max-width: 760px;
}

.proof-loop-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.proof-loop-card {
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 204px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(248, 251, 255, 0.92) 100%);
}

.proof-loop-card span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid #cfdbef;
  border-radius: 12px;
  background: #e5edff;
  color: #31466b;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.82rem;
  font-weight: 700;
}

.proof-loop-card h3 {
  color: #17181b;
  font-size: 1.18rem;
  line-height: 1.18;
}

.proof-loop-card p {
  color: #6e6e6e;
  font-size: 1rem;
  line-height: 1.52;
}

.fit-rail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: center;
  margin-top: 28px;
  border: 1px solid var(--line);
  border-radius: 999px;
  min-height: 56px;
  padding: 6px;
  background: rgba(255, 255, 255, 0.86);
  overflow: hidden;
}

.fit-rail span,
.fit-rail strong {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 999px;
  color: #4f5d74;
  font-family: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.fit-rail strong {
  background: #e8f1ff;
  color: #31466b;
}

@media (max-width: 920px) {
  .hero-body,
  .hero-flow,
  .demo-grid,
  .artifact-grid,
  .primitive-grid,
  .integration-strip,
  .use-case-grid,
  .proof-loop-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 40px;
  }

  .site-nav {
    width: calc(100% - 24px);
    max-width: none;
    margin-top: 14px;
    padding: 8px 14px;
  }

  .brand img:first-child {
    width: 34px;
    height: 34px;
  }

  .brand img:last-child {
    height: 18px;
  }

  .site-nav nav a,
  .nav-cta {
    min-height: 42px;
  }

  h1 {
    max-width: 100%;
  }
}

@media (max-width: 680px) {
  main > section {
    width: min(100% - 32px, 1100px);
  }

  .site-nav {
    width: calc(100% - 24px);
  }

  .site-nav {
    align-items: center;
    display: flex;
    border-radius: 24px;
    gap: 10px;
    justify-content: space-between;
    padding: 8px 10px;
  }

  .site-nav nav {
    flex-wrap: nowrap;
    margin-left: auto;
    position: static;
    transform: none;
    width: auto;
    padding: 2px;
  }

  .site-nav nav a {
    flex: 0 0 auto;
    font-size: 0.82rem;
    justify-content: center;
    min-height: 34px;
    min-width: 0;
    padding: 0 10px;
    text-align: center;
  }

  .brand::after {
    display: none;
  }

  .brand {
    gap: 8px;
    margin-right: 0;
    padding-right: 0;
  }

  .brand img:first-child {
    width: 34px;
    height: 34px;
  }

  .brand img:last-child {
    display: none;
  }

  .nav-cta {
    flex: 0 0 auto;
    min-height: 36px;
    width: auto;
    min-width: 0;
    padding: 0 12px;
  }

  .hero {
    gap: 28px;
    padding-bottom: 30px;
  }

  .hero-body,
  .packet-artifact {
    padding: 18px;
  }

  .hero-artifact-topline,
  .demo-artifact-topline,
  .packet-artifact-topline {
    align-items: flex-start;
    flex-direction: column;
  }

  h1 {
    font-size: 2.28rem;
  }

  .field-row,
  .metric-grid,
  .fit-rail {
    grid-template-columns: 1fr;
  }

  .hero-proof-strip {
    align-items: stretch;
    width: 100%;
  }

  .hero-proof-strip div {
    justify-content: center;
    width: 100%;
    text-align: center;
  }

  .fit-rail {
    border-radius: var(--radius);
  }

  .result-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .field-tooltip {
    width: min(240px, calc(100vw - 80px));
  }

  .button {
    width: 100%;
  }

  .execution-artifact {
    padding: 20px;
  }

  .artifact-topline {
    align-items: flex-start;
    flex-direction: column;
  }

  .artifact-links {
    justify-content: flex-start;
  }

  .artifact-stat-grid {
    grid-template-columns: 1fr;
  }

  .artifact-chip-row span {
    width: 100%;
    text-align: center;
  }

}