.landing-page {
  --bg: #1a1a19;
  --surface: #20201f;
  --surface-faint: rgba(236, 236, 232, 0.018);
  --ink: #e6e6e1;
  --ink-soft: #c7c7c2;
  --ink-dim: #8f8f8a;
  --ink-faint: #6e6e68;
  --cyan: #a9d7e8;
  --cyan-bright: #c9eaf6;
  --cyan-dim: rgba(169, 215, 232, 0.58);
  --cyan-faint: rgba(169, 215, 232, 0.18);
  --frame: rgba(236, 236, 232, 0.13);
  --frame-strong: rgba(169, 215, 232, 0.45);
  --green: #8ecf9a;
  --yellow: #e7c46a;
  --red: #ef7564;
  --font-ui: "Hanken Grotesk", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.62 var(--font-ui);
  min-height: 100vh;
  margin: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.landing-page * {
  box-sizing: border-box;
}

.landing-page a {
  color: inherit;
  text-decoration: none;
}

.landing-page::before {
  background: var(--bg);
  border-bottom: 1px solid var(--frame);
  content: "";
  height: 92px;
  left: 0;
  pointer-events: none;
  position: fixed;
  right: 0;
  top: 0;
  z-index: -1;
}

.landing-rail {
  bottom: 44px;
  display: flex;
  flex-direction: column;
  left: 36px;
  position: fixed;
  top: 44px;
  width: 168px;
  z-index: 5;
}

.landing-wordmark {
  color: var(--ink);
  display: block;
  font-size: 1.45rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.12;
  margin-bottom: 48px;
  text-shadow: 0 0 2px rgba(239, 239, 234, 0.48), 0 0 10px rgba(239, 239, 234, 0.2);
}

.landing-wordmark b {
  color: var(--cyan);
  display: block;
  filter: drop-shadow(0 0 2px rgba(169, 215, 232, 0.36)) drop-shadow(0 0 8px rgba(169, 215, 232, 0.2));
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.2;
  margin-top: 18px;
}

.landing-rail nav {
  display: grid;
  gap: 0;
}

.landing-rail nav a,
.operator-link {
  color: var(--ink-dim);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 2.45;
  text-transform: uppercase;
  transition: color 0.25s, text-shadow 0.25s;
}

.landing-rail nav a:hover,
.operator-link:hover {
  color: var(--cyan);
  text-shadow: 0 0 14px rgba(169, 215, 232, 0.45);
}

.landing-main {
  margin-left: 226px;
  max-width: 1320px;
  padding: 0 56px 88px 0;
}

.landing-hero {
  align-items: center;
  display: grid;
  gap: 68px;
  grid-template-columns: minmax(0, 1.02fr) minmax(430px, 0.98fr);
  min-height: 690px;
  padding-top: 60px;
}

.landing-kicker,
.section-head p,
.stage-label,
.capability-grid article span,
.method-strip span,
.review-table span,
.landing-login-form label {
  color: var(--cyan-dim);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0;
  margin: 0;
  text-transform: uppercase;
}

.landing-copy h1 {
  color: var(--ink);
  font-size: 4.1rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.04;
  margin: 22px 0 28px;
  max-width: 760px;
}

.landing-lede {
  color: #b7c5c9;
  font-size: 1.08rem;
  line-height: 1.65;
  margin: 0;
  max-width: 58ch;
}

.landing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.landing-button,
.landing-login-form button {
  align-items: center;
  background: transparent;
  border: 1px solid var(--frame);
  border-radius: 0;
  color: var(--ink-soft);
  cursor: pointer;
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  justify-content: center;
  min-height: 44px;
  padding: 12px 18px;
  text-transform: uppercase;
  transition: border-color 0.25s, color 0.25s, box-shadow 0.25s, background 0.25s;
}

.landing-button.primary,
.landing-login-form button {
  border-color: rgba(169, 215, 232, 0.36);
  color: var(--cyan-bright);
}

.landing-button:hover,
.landing-login-form button:hover {
  border-color: var(--frame-strong);
  box-shadow: 0 0 28px rgba(169, 215, 232, 0.08);
  color: var(--cyan);
}

.evidence-stage {
  aspect-ratio: 1.03;
  border: 1px solid var(--cyan-faint);
  min-height: 460px;
  overflow: hidden;
  padding: 24px;
  position: relative;
}

.evidence-stage::before {
  background-image:
    linear-gradient(rgba(169, 215, 232, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(169, 215, 232, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  content: "";
  inset: 0;
  opacity: 0.55;
  position: absolute;
}

.evidence-stage::after {
  border-left: 1px solid rgba(169, 215, 232, 0.22);
  content: "";
  height: 70%;
  position: absolute;
  right: 28%;
  top: 15%;
}

.stage-label {
  position: relative;
  z-index: 1;
}

.evidence-grid {
  height: calc(100% - 24px);
  position: relative;
  z-index: 1;
}

.evidence-node {
  background: rgba(26, 26, 25, 0.86);
  border: 1px solid var(--frame);
  min-width: 128px;
  padding: 15px 16px;
  position: absolute;
}

.evidence-node span,
.confidence-meter span {
  color: var(--ink-faint);
  display: block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-transform: uppercase;
}

.evidence-node strong {
  color: var(--ink);
  display: block;
  font-size: 1.05rem;
  font-weight: 500;
  margin-top: 7px;
}

.source-a {
  left: 4%;
  top: 12%;
}

.source-b {
  left: 7%;
  top: 58%;
}

.coordinator {
  left: 39%;
  top: 35%;
}

.claims {
  right: 5%;
  top: 16%;
}

.artifact {
  right: 5%;
  top: 60%;
}

.evidence-line {
  background: rgba(169, 215, 232, 0.2);
  height: 1px;
  position: absolute;
  transform-origin: left center;
}

.line-a {
  left: 28%;
  top: 25%;
  transform: rotate(23deg);
  width: 150px;
}

.line-b {
  left: 28%;
  top: 67%;
  transform: rotate(-24deg);
  width: 155px;
}

.line-c {
  left: 59%;
  top: 43%;
  transform: rotate(-23deg);
  width: 148px;
}

.line-d {
  left: 59%;
  top: 49%;
  transform: rotate(23deg);
  width: 148px;
}

.evidence-pulse {
  background: var(--cyan-bright);
  box-shadow: 0 0 16px rgba(169, 215, 232, 0.88), 0 0 34px rgba(169, 215, 232, 0.34);
  height: 5px;
  position: absolute;
  width: 5px;
}

.pulse-a {
  animation: pulse-a 6s linear infinite;
}

.pulse-b {
  animation: pulse-b 7.4s linear infinite;
}

.pulse-c {
  animation: pulse-c 8.2s linear infinite;
}

.confidence-meter {
  border: 1px solid rgba(169, 215, 232, 0.2);
  bottom: 7%;
  display: grid;
  gap: 8px;
  left: 35%;
  padding: 14px;
  position: absolute;
  width: 195px;
}

.confidence-meter b {
  border-left: 2px solid var(--cyan);
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  padding-left: 8px;
  text-transform: uppercase;
}

.confidence-meter b:nth-of-type(2) {
  border-left-color: var(--yellow);
}

.confidence-meter b:nth-of-type(3) {
  border-left-color: var(--ink-faint);
}

.landing-section {
  border-top: 1px solid var(--frame);
  padding: 78px 0 0;
}

.section-head {
  margin-bottom: 38px;
  max-width: 760px;
}

.section-head h2,
.review-section h2,
.login-dialog h2 {
  color: var(--ink);
  font-size: 2.15rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.12;
  margin: 14px 0 0;
}

.capability-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.capability-grid article {
  background: var(--surface-faint);
  border: 1px solid var(--frame);
  min-height: 268px;
  padding: 24px 22px;
  transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
}

.capability-grid article:hover {
  background: var(--surface);
  border-color: var(--frame-strong);
  box-shadow: 0 0 28px rgba(169, 215, 232, 0.07);
}

.capability-grid h3 {
  color: var(--ink);
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.25;
  margin: 22px 0 14px;
}

.capability-grid p,
.method-strip p,
.review-table b {
  color: var(--ink-dim);
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.58;
  margin: 0;
}

.method-section {
  margin-top: 76px;
}

.method-strip {
  border: 1px solid var(--frame);
  counter-reset: method;
  display: grid;
  list-style: none;
  margin: 0;
  padding: 0;
}

.method-strip li {
  align-items: start;
  border-top: 1px solid var(--frame);
  display: grid;
  gap: 26px;
  grid-template-columns: 170px minmax(0, 1fr);
  min-height: 86px;
  padding: 24px 28px;
  position: relative;
}

.method-strip li:first-child {
  border-top: 0;
}

.method-strip li::before {
  color: var(--cyan-dim);
  content: "0" counter(method);
  counter-increment: method;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  left: 14px;
  position: absolute;
  top: 27px;
}

.method-strip span {
  color: var(--ink);
  padding-left: 36px;
}

.review-section {
  align-items: start;
  display: grid;
  gap: 48px;
  grid-template-columns: minmax(0, 0.88fr) minmax(520px, 1fr);
  margin-top: 76px;
}

.review-table {
  border: 1px solid var(--frame);
}

.review-table div {
  display: grid;
  gap: 22px;
  grid-template-columns: 180px minmax(0, 1fr);
  padding: 20px 22px;
}

.review-table div + div {
  border-top: 1px solid var(--frame);
}

.login-modal {
  display: none;
  inset: 0;
  place-items: center;
  position: fixed;
  z-index: 100;
}

.login-modal:target {
  display: grid;
}

.login-backdrop {
  background: rgba(10, 10, 9, 0.78);
  inset: 0;
  position: absolute;
  z-index: 0;
}

.login-dialog {
  background: var(--bg);
  border: 1px solid var(--frame-strong);
  box-shadow: 0 0 60px rgba(169, 215, 232, 0.13);
  max-width: 470px;
  padding: 34px;
  position: relative;
  width: min(calc(100vw - 48px), 470px);
  z-index: 1;
}

.login-close {
  color: var(--ink-dim);
  font-size: 1.8rem;
  line-height: 1;
  position: absolute;
  right: 20px;
  top: 16px;
}

.landing-login-form {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.landing-login-form input {
  background: #111;
  border: 1px solid rgba(169, 215, 232, 0.42);
  border-radius: 0;
  color: var(--ink);
  font: 400 1rem/1.3 var(--font-ui);
  min-height: 48px;
  padding: 12px 14px;
}

.landing-login-form input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(169, 215, 232, 0.28), 0 0 24px rgba(169, 215, 232, 0.08);
  outline: none;
}

.operator-link {
  display: inline-block;
  margin-top: 20px;
}

@keyframes pulse-a {
  0% { left: 24%; top: 25%; opacity: 0; }
  8% { opacity: 1; }
  43% { left: 43%; top: 39%; opacity: 1; }
  70% { left: 70%; top: 28%; opacity: 1; }
  100% { left: 83%; top: 25%; opacity: 0; }
}

@keyframes pulse-b {
  0% { left: 23%; top: 67%; opacity: 0; }
  9% { opacity: 1; }
  48% { left: 43%; top: 47%; opacity: 1; }
  76% { left: 69%; top: 63%; opacity: 1; }
  100% { left: 84%; top: 68%; opacity: 0; }
}

@keyframes pulse-c {
  0% { left: 43%; top: 43%; opacity: 0; }
  12% { opacity: 1; }
  46% { left: 57%; top: 44%; opacity: 1; }
  76% { left: 45%; top: 79%; opacity: 1; }
  100% { left: 45%; top: 79%; opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .evidence-pulse {
    animation: none;
    display: none;
  }
}

@media (max-width: 1120px) {
  .landing-main {
    padding-right: 36px;
  }

  .landing-hero,
  .review-section {
    grid-template-columns: 1fr;
  }

  .evidence-stage {
    max-width: 620px;
  }

  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .landing-page::before {
    display: none;
  }

  .landing-rail {
    border-bottom: 1px solid var(--frame);
    bottom: auto;
    left: auto;
    padding: 26px 28px 18px;
    position: relative;
    top: auto;
    width: auto;
  }

  .landing-wordmark {
    margin-bottom: 22px;
  }

  .landing-rail nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0 20px;
  }

  .landing-main {
    margin-left: 0;
    padding: 0 28px 64px;
  }

  .landing-hero {
    gap: 34px;
    min-height: 0;
    padding-top: 54px;
  }

  .landing-copy h1 {
    font-size: 3rem;
  }

  .evidence-stage {
    min-height: 420px;
  }

  .method-strip li,
  .review-table div {
    grid-template-columns: 1fr;
  }

  .method-strip li {
    gap: 12px;
  }
}

@media (max-width: 620px) {
  .landing-copy h1 {
    font-size: 2.45rem;
  }

  .capability-grid {
    grid-template-columns: 1fr;
  }

  .evidence-stage {
    display: none;
  }
}