:root {
  --bg: #071016;
  --bg-soft: #0c1720;
  --panel: #101f2b;
  --panel-strong: #142b3a;
  --text: #eff7fb;
  --muted: #9db2bf;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #59f0b7;
  --accent-2: #72a7ff;
  --warning: #f8cf69;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(89, 240, 183, 0.14), transparent 35rem),
    radial-gradient(circle at 85% 8%, rgba(114, 167, 255, 0.18), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

.text-link {
  display: inline-flex;
  margin-top: 14px;
  color: var(--accent);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--warning);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--warning);
  color: #061017;
  font-weight: 800;
  transform: translateY(-160%);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

button,
input {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 16, 22, 0.82);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand,
.nav-links {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #061017;
}

.nav-links {
  gap: 22px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-links a[aria-current] {
  color: var(--text);
}

.nav-cta {
  padding: 10px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  background: transparent;
  color: var(--text);
}

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 84px 0;
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  align-items: center;
  gap: 56px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 900px;
  margin-bottom: 24px;
  font-size: clamp(3.2rem, 8vw, 6.6rem);
  line-height: 0.94;
  letter-spacing: -0.085em;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(2.1rem, 5vw, 4.4rem);
  line-height: 1;
  letter-spacing: -0.07em;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}

.hero-copy,
.split > div:first-child p,
.section-note,
.newsletter p {
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-copy {
  max-width: 680px;
  margin-bottom: 34px;
}

.hero-actions,
.filter-bar,
.signup-form div {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button,
.filter-button {
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 800;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease;
}

.button:hover,
.filter-button:hover {
  transform: translateY(-1px);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
}

.primary {
  background: var(--accent);
  color: #061017;
}

.secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.hero-card,
.tool-card,
.profile-list article,
.article-grid article,
.template-grid article,
.qa-grid article,
.playbook-grid article,
.newsletter {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03));
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 28px;
}

.card-kicker {
  color: var(--muted);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.signal-grid div {
  padding: 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.06);
}

.signal-grid strong {
  display: block;
  font-size: 2.6rem;
  line-height: 1;
}

.signal-grid span {
  color: var(--muted);
  font-size: 0.9rem;
}

.logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  padding-top: 0;
}

.logos span {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 16px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
}

.quick-nav {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 32px;
  padding-top: 28px;
}

.quick-nav nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.quick-nav a,
.site-footer a {
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.35);
  text-underline-offset: 4px;
}

.quick-nav a {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 48px;
}

.guide-steps {
  display: grid;
  gap: 16px;
}

.guide-steps article {
  display: grid;
  grid-template-columns: 52px 1fr;
  column-gap: 18px;
  padding: 24px;
  border-top: 1px solid var(--line);
}

.guide-steps span {
  color: var(--warning);
  font-weight: 800;
}

.guide-steps h3,
.guide-steps p {
  grid-column: 2;
}

.guide-steps p,
.tool-card p,
.profile-list p,
.article-grid p,
.checklist li,
.playbook-grid p,
.site-footer {
  color: var(--muted);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 28px;
  margin-bottom: 32px;
}

.section-note {
  max-width: 420px;
}

.filter-button {
  padding: 10px 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.filter-button.active {
  border-color: transparent;
  background: var(--text);
  color: #061017;
}

.filter-status {
  margin: -16px 0 24px;
  color: var(--muted);
}

.card-grid,
.article-grid,
.template-grid,
.qa-grid,
.workflow-grid,
.decision-grid,
.evidence-grid,
.playbook-grid,
.glossary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.tool-card,
.article-grid article,
.template-grid article,
.qa-grid article,
.workflow-grid article,
.decision-grid article,
.evidence-grid article,
.playbook-grid article,
.glossary-grid article {
  padding: 24px;
}

.tool-card span,
.profile-list span,
.article-meta {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tool-card.is-hidden {
  display: none;
}

.profile-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.profile-list article {
  padding: 24px;
}

.source-placeholder {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--warning);
  font-size: 0.92rem;
}

.source-ledger,
.source-gap-log .qa-grid,
.workflow-grid,
.readiness-list {
  margin-top: 22px;
}

.source-ledger,
.readiness-list {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(248, 207, 105, 0.08);
}

.source-ledger p,
.source-ledger li,
.readiness-list {
  color: var(--muted);
}

.source-ledger ul,
.template-grid ul {
  margin: 18px 0 0;
  padding-left: 22px;
}

.source-ledger li + li,
.template-grid li + li {
  margin-top: 8px;
}

.article-grid ol {
  margin: 18px 0 0;
  padding-left: 22px;
  color: var(--text);
}

.article-grid li + li {
  margin-top: 8px;
}

.article-review-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--warning);
  font-size: 0.92rem;
}

.template-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.template-grid article,
.qa-grid article,
.workflow-grid article,
.decision-grid article,
.evidence-grid article {
  background: rgba(255, 255, 255, 0.04);
}

.template-grid li,
.qa-grid p,
.workflow-grid p,
.decision-grid p,
.evidence-grid p {
  color: var(--muted);
}

.qa-matrix {
  padding-top: 28px;
}

.qa-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.decision-grid,
.evidence-grid {
  margin-top: 22px;
}

.smoke-test {
  padding-top: 28px;
}

.article-page h1 {
  max-width: 980px;
  font-size: clamp(3rem, 7vw, 5.4rem);
}

.article-scaffold section {
  margin-top: 42px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.checklist {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.checklist li {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
}

.checklist strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
}

.glossary-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
}

.glossary-grid p {
  color: var(--muted);
}

.readiness-list {
  display: grid;
  gap: 10px;
  padding-left: 46px;
}

.playbook {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 40px;
}

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

.newsletter {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
  gap: 36px;
  padding: 36px;
  margin-bottom: 84px;
  background:
    linear-gradient(135deg, rgba(89, 240, 183, 0.16), rgba(114, 167, 255, 0.08)),
    var(--panel);
}

.signup-form label {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-weight: 700;
}

.signup-form input {
  min-width: 0;
  flex: 1;
  height: 50px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 18px;
  background: rgba(7, 16, 22, 0.72);
  color: var(--text);
  outline: none;
}

.signup-form input:focus {
  border-color: var(--accent);
}

.form-status {
  min-height: 24px;
  margin: 12px 0 0;
  color: var(--accent);
}

.site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
}

.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

@media (max-width: 920px) {
  .nav {
    align-items: flex-start;
    padding: 18px 0;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 76px;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: var(--bg-soft);
  }

  .nav-links.is-open {
    display: flex;
  }

  .hero,
  .split,
  .quick-nav,
  .playbook,
  .newsletter {
    grid-template-columns: 1fr;
  }

  .section-heading {
    display: block;
  }

  .filter-bar {
    margin-top: 20px;
  }

  .card-grid,
  .article-grid,
  .template-grid,
  .qa-grid,
  .workflow-grid,
  .decision-grid,
  .evidence-grid,
  .glossary-grid,
  .profile-list,
  .checklist {
    grid-template-columns: 1fr;
  }

  .quick-nav nav {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .section {
    padding: 58px 0;
  }

  .hero {
    min-height: auto;
    padding-top: 64px;
  }

  h1 {
    font-size: clamp(2.7rem, 16vw, 4.2rem);
  }

  .signal-grid,
  .playbook-grid {
    grid-template-columns: 1fr;
  }

  .newsletter {
    padding: 24px;
  }

  .signup-form div {
    display: grid;
  }

  .site-footer {
    flex-direction: column;
  }
}