:root {
  --navy: #071527;
  --navy-2: #0d2038;
  --navy-3: #112b4a;
  --slate: #334155;
  --muted: #64748b;
  --muted-2: #94a3b8;
  --light: #f8fafc;
  --white: #ffffff;
  --teal: #14b8a6;
  --teal-dark: #0f766e;
  --blue: #2563eb;
  --blue-soft: #dbeafe;
  --warm: #f59e0b;
  --border: #e2e8f0;
  --border-dark: rgba(255, 255, 255, 0.14);
  --shadow: 0 18px 52px rgba(15, 23, 42, 0.12);
  --shadow-soft: 0 12px 28px rgba(15, 23, 42, 0.08);
  --radius: 8px;
  --container: 1180px;
  --header-height: 74px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  color: var(--slate);
  background: var(--light);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

img,
svg,
iframe {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
}

button {
  font: inherit;
}

pre,
code {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 200;
  transform: translateY(-140%);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--navy);
  padding: 10px 14px;
  box-shadow: var(--shadow-soft);
  text-decoration: none;
  transition: transform 180ms var(--ease);
}

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

.container {
  width: min(100% - 40px, var(--container));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(226, 232, 240, 0.75);
  background: rgba(248, 250, 252, 0.88);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(100% - 32px, 1240px);
  min-height: var(--header-height);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--navy);
  text-decoration: none;
  flex: 0 0 auto;
}

.brand__mark {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--navy), var(--blue));
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 800;
}

.brand__title,
.brand__subtitle {
  display: block;
}

.brand__title {
  font-weight: 800;
  line-height: 1.1;
}

.brand__subtitle {
  color: var(--muted);
  font-size: 0.78rem;
}

.nav__links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}

.nav__links a {
  border-radius: var(--radius);
  color: var(--slate);
  font-size: 0.88rem;
  font-weight: 650;
  line-height: 1;
  padding: 11px 10px;
  text-decoration: none;
  transition: background 180ms var(--ease), color 180ms var(--ease);
}

.nav__links a:hover,
.nav__links a.is-active {
  background: var(--white);
  color: var(--blue);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--navy);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: currentColor;
  transition: transform 220ms var(--ease), opacity 180ms var(--ease);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.section {
  padding-block: 96px;
}

.section-soft {
  background:
    linear-gradient(180deg, rgba(219, 234, 254, 0.38), rgba(255, 255, 255, 0.74)),
    var(--light);
}

.section-dark {
  position: relative;
  color: #dbeafe;
  background:
    linear-gradient(135deg, rgba(20, 184, 166, 0.16), rgba(37, 99, 235, 0.12) 38%, rgba(245, 158, 11, 0.07)),
    var(--navy);
  overflow: hidden;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading h2 {
  margin: 0;
  color: var(--navy);
  font-size: 2.55rem;
  line-height: 1.08;
}

.section-heading p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.section-dark .section-heading h2 {
  color: var(--white);
}

.section-dark .section-heading p {
  color: #cbd5e1;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--teal);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero {
  min-height: calc(100vh - var(--header-height));
  padding-block: 88px 72px;
  display: grid;
  align-items: center;
}

.hero__mesh {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.85), transparent 88%);
  pointer-events: none;
}

.float-shape {
  position: absolute;
  --parallax-y: 0px;
  width: 190px;
  height: 190px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.15), rgba(37, 99, 235, 0.08));
  transform: rotate(16deg);
  animation: floatShape 8s ease-in-out infinite;
  pointer-events: none;
}

.float-shape--one {
  top: 18%;
  right: 8%;
}

.float-shape--two {
  width: 130px;
  height: 130px;
  left: 7%;
  bottom: 13%;
  animation-delay: -3s;
}

.hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  gap: 42px;
  align-items: center;
}

.hero__content {
  max-width: 820px;
}

.hero__title {
  margin: 0;
  color: var(--white);
  font-size: 4.25rem;
  line-height: 0.96;
}

.hero__subtitle {
  max-width: 760px;
  margin: 24px 0 0;
  color: #dbeafe;
  font-size: 1.18rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 11px 16px;
  color: inherit;
  font-weight: 750;
  line-height: 1.1;
  text-decoration: none;
  transition: transform 180ms var(--ease), box-shadow 180ms var(--ease), background 180ms var(--ease), border-color 180ms var(--ease);
}

.button:hover {
  transform: translateY(-2px);
}

.button--primary {
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: var(--white);
  box-shadow: 0 16px 32px rgba(20, 184, 166, 0.22);
}

.button--secondary {
  border-color: var(--border);
  background: var(--white);
  color: var(--navy);
}

.section-dark .button--secondary {
  border-color: var(--border-dark);
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
}

.button--text {
  border-color: transparent;
  color: var(--white);
}

.button--small {
  min-height: 40px;
  padding: 10px 13px;
  font-size: 0.9rem;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.hero__badges span,
.pill-cloud span,
.table-list span,
.question-grid span {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--slate);
  font-size: 0.86rem;
  font-weight: 700;
  padding: 8px 10px;
}

.section-dark .hero__badges span {
  border-color: var(--border-dark);
  background: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
}

.hero-card {
  position: relative;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.2);
  padding: 28px;
  backdrop-filter: blur(18px);
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.18), transparent 35%, rgba(245, 158, 11, 0.1));
  pointer-events: none;
}

.hero-card > * {
  position: relative;
}

.hero-card__topline {
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-card h2 {
  margin: 12px 0 12px;
  color: var(--white);
  font-size: 1.6rem;
  line-height: 1.14;
}

.hero-card p {
  color: #cbd5e1;
}

.hero-card__stack {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.hero-card__stack span {
  border-left: 3px solid var(--teal);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
  padding: 11px 12px;
  font-weight: 700;
}

.hero-reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: heroReveal 700ms var(--ease) forwards;
}

.hero-reveal:nth-child(2) {
  animation-delay: 110ms;
}

.hero-reveal:nth-child(3) {
  animation-delay: 210ms;
}

.hero-reveal:nth-child(4) {
  animation-delay: 310ms;
}

.hero-reveal:nth-child(5) {
  animation-delay: 420ms;
}

.metric-band {
  position: relative;
  z-index: 2;
  margin-top: -36px;
}

.metric-band__grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.metric-card,
.topic-card,
.implemented-card,
.finding-card,
.extension-card,
.roadmap-card,
.summary-panel,
.tabs,
.validation-card,
.semantic-examples,
.question-panel,
.tuning-panel,
.about-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-soft);
  transition: transform 200ms var(--ease), box-shadow 200ms var(--ease), border-color 200ms var(--ease);
}

.metric-card:hover,
.topic-card:hover,
.implemented-card:hover,
.finding-card:hover,
.extension-card:hover,
.roadmap-card:hover,
.validation-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.28);
  box-shadow: var(--shadow);
}

.metric-card {
  min-height: 138px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.metric-card__label {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.metric-card strong {
  color: var(--navy);
  font-size: 2.1rem;
  line-height: 1;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.7fr) minmax(0, 1.3fr);
  gap: 48px;
  align-items: start;
}

.summary-panel {
  padding: 32px;
}

.lead {
  color: var(--navy);
  font-size: 1.22rem;
  font-weight: 700;
}

.tabs {
  overflow: hidden;
}

.tab-list {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  background: #eef6ff;
  padding: 10px;
}

.tab-button {
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--slate);
  cursor: pointer;
  font-weight: 800;
  padding: 12px 14px;
  transition: background 180ms var(--ease), color 180ms var(--ease), transform 180ms var(--ease);
}

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

.tab-button.is-active {
  background: var(--white);
  color: var(--blue);
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
}

.tab-panels {
  padding: 24px;
}

.tab-panel {
  animation: panelIn 240ms var(--ease);
}

.tab-intro {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.tab-intro h3,
.topic-card h3,
.code-card h3,
.finding-card h3,
.tuning-panel h3,
.semantic-examples h3,
.question-panel h3,
.roadmap-card h3,
.extension-card h3,
.validation-card strong {
  margin: 0 0 8px;
  color: var(--navy);
  font-size: 1.16rem;
  line-height: 1.25;
}

.report-frame {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--navy);
  box-shadow: var(--shadow);
}

.report-frame iframe {
  width: 100%;
  height: 680px;
  border: 0;
}

.feature-grid,
.kpi-engineering-grid,
.findings-grid,
.extension-grid,
.demonstrates-grid,
.ai-grid,
.security-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.feature-grid {
  margin-top: 18px;
}

.feature-grid article {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--light);
  padding: 18px;
}

.feature-grid h4 {
  margin: 0 0 6px;
  color: var(--navy);
}

.feature-grid p,
.topic-card p,
.finding-card p,
.roadmap-card p,
.extension-card p,
.feature-grid p,
.validation-card p {
  margin: 0;
}

.table-list,
.pill-cloud,
.question-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.architecture-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: 28px;
  align-items: center;
}

.model-diagram {
  position: relative;
  min-height: 520px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    rgba(7, 21, 39, 0.55);
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.22);
  overflow: hidden;
}

.model-diagram::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.42;
}

.model-diagram__lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.model-diagram__lines path {
  fill: none;
  stroke: var(--teal);
  stroke-width: 0.6;
  stroke-linecap: round;
  stroke-dasharray: 5 4;
  animation: connectorFlow 2600ms linear infinite;
  filter: drop-shadow(0 0 7px rgba(20, 184, 166, 0.6));
}

.model-diagram__lines .line-security {
  stroke: var(--warm);
}

.model-node {
  position: absolute;
  z-index: 1;
  width: 170px;
  min-height: 58px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  font-weight: 800;
  text-align: center;
  padding: 12px;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(14px);
}

.node-fact {
  left: 50%;
  top: 50%;
  width: 210px;
  min-height: 94px;
  transform: translate(-50%, -50%);
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.92), rgba(37, 99, 235, 0.92));
}

.node-fact span {
  display: block;
  font-size: 0.78rem;
  font-weight: 800;
  opacity: 0.9;
}

.node-fact strong {
  display: block;
  font-size: 1rem;
}

.node-date {
  left: 50%;
  top: 6%;
  transform: translateX(-50%);
}

.node-customer {
  left: 7%;
  top: 30%;
}

.node-branch {
  right: 7%;
  top: 30%;
}

.node-equipment {
  left: 11%;
  bottom: 8%;
}

.node-sales {
  right: 11%;
  bottom: 8%;
}

.node-security {
  right: 6%;
  top: 6%;
  border-color: rgba(245, 158, 11, 0.46);
  background: rgba(245, 158, 11, 0.14);
}

.architecture-notes,
.production-note {
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  padding: 24px;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 26px;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.48em;
  width: 12px;
  height: 12px;
  border: 3px solid var(--teal);
  border-left: 0;
  border-top: 0;
  transform: rotate(45deg);
}

.section-dark .check-list li {
  color: #e2e8f0;
}

.implemented-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.implemented-card {
  position: relative;
  min-height: 92px;
  padding: 18px 18px 18px 48px;
  color: var(--navy);
  font-weight: 750;
}

.implemented-card::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 22px;
  width: 16px;
  height: 16px;
  border-radius: 5px;
  background: linear-gradient(135deg, var(--teal), var(--blue));
  box-shadow: 0 0 0 5px rgba(20, 184, 166, 0.1);
}

.topic-card,
.finding-card,
.extension-card,
.semantic-examples,
.question-panel,
.tuning-panel {
  padding: 24px;
}

.code-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.code-card {
  overflow: hidden;
  border: 1px solid #d0d7e2;
  border-radius: var(--radius);
  background: #0b1220;
  box-shadow: var(--shadow-soft);
}

.code-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 14px 16px;
}

.code-card__header h3 {
  margin: 0;
  color: var(--white);
  font-size: 0.98rem;
}

.copy-button {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 8px 10px;
  transition: background 180ms var(--ease), color 180ms var(--ease), transform 180ms var(--ease);
}

.copy-button:hover {
  transform: translateY(-1px);
  background: rgba(20, 184, 166, 0.22);
}

.copy-button.is-copied {
  background: var(--teal);
  color: var(--navy);
}

.code-card pre {
  margin: 0;
  overflow-x: auto;
  padding: 18px;
}

.code-card code {
  color: #dbeafe;
  font-size: 0.88rem;
  line-height: 1.7;
}

.security-flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.security-flow span {
  position: relative;
  min-height: 92px;
  display: grid;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--navy);
  font-weight: 760;
  padding: 16px;
  box-shadow: var(--shadow-soft);
}

.security-flow span:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -10px;
  width: 14px;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--blue));
}

.security-grid {
  align-items: stretch;
}

.validation-stack {
  display: grid;
  gap: 14px;
}

.validation-card {
  padding: 20px;
}

.validation-card span {
  display: block;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
}

.validation-card strong {
  display: block;
  margin-top: 6px;
  color: var(--blue);
  font-size: 1.7rem;
}

.notice {
  margin: 22px 0 0;
  border: 1px solid rgba(245, 158, 11, 0.32);
  border-radius: var(--radius);
  background: rgba(245, 158, 11, 0.11);
  color: #713f12;
  padding: 16px 18px;
  font-weight: 700;
}

.section-dark .finding-card,
.section-dark .tuning-panel,
.about-card {
  border-color: var(--border-dark);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.2);
}

.section-dark .finding-card h3,
.section-dark .tuning-panel h3,
.section-dark .about-card h3 {
  color: var(--white);
}

.section-dark .finding-card p,
.section-dark .tuning-panel p,
.section-dark .about-card p {
  color: #dbeafe;
}

.pill-cloud {
  margin-top: 14px;
}

.section-dark .pill-cloud span {
  border-color: var(--border-dark);
  background: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
}

.ai-grid {
  align-items: start;
}

.metadata-list {
  display: grid;
  gap: 14px;
}

.metadata-list div {
  border-left: 3px solid var(--blue);
  border-radius: var(--radius);
  background: var(--light);
  padding: 14px 16px;
}

.metadata-list strong {
  display: block;
  color: var(--navy);
  margin-bottom: 6px;
}

.metadata-list p {
  margin: 4px 0 0;
}

.question-panel {
  margin-top: 18px;
}

.production-note {
  margin-bottom: 22px;
  border-color: rgba(20, 184, 166, 0.28);
  background: linear-gradient(135deg, rgba(20, 184, 166, 0.1), rgba(37, 99, 235, 0.08));
}

.production-note p {
  margin: 0;
  color: var(--navy);
  font-weight: 760;
}

.roadmap {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.roadmap-card {
  position: relative;
  padding: 24px;
}

.roadmap-card span {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 850;
  margin-bottom: 18px;
}

.extension-grid {
  margin-top: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.about__grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  gap: 44px;
}

.about-card {
  padding: 30px;
}

.roadmap-section {
  background:
    radial-gradient(900px 520px at 12% 8%, rgba(20, 184, 166, 0.2), transparent 60%),
    radial-gradient(900px 620px at 86% 12%, rgba(37, 99, 235, 0.2), transparent 58%),
    linear-gradient(180deg, var(--navy), #0a1b31 48%, var(--navy));
}

.roadmap-hero {
  max-width: 920px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.22);
  padding: clamp(26px, 4vw, 42px);
}

.roadmap-hero h2,
.roadmap-copy h3,
.day-card h3,
.maturity-step h3,
.ai-use-card h3,
.platform-diagram h3,
.roadmap-callout h2 {
  margin: 0;
  color: var(--white);
  line-height: 1.12;
}

.roadmap-hero h2 {
  font-size: clamp(2.2rem, 5vw, 4.2rem);
}

.roadmap-hero p,
.roadmap-copy p,
.day-card p,
.day-card li,
.maturity-step p,
.ai-use-card p,
.ai-use-card dd,
.platform-diagram p,
.roadmap-callout p {
  color: #dbeafe;
}

.roadmap-hero__subtitle {
  margin: 18px 0 12px;
  max-width: 760px;
  font-size: 1.22rem;
  font-weight: 800;
}

.roadmap-badges,
.compact-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.roadmap-badges {
  margin-top: 24px;
}

.roadmap-badges span,
.compact-tags span {
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
  font-size: 0.84rem;
  font-weight: 800;
  padding: 8px 10px;
}

.roadmap-block {
  margin-top: 72px;
}

.roadmap-split {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 22px;
  align-items: stretch;
  margin-top: 28px;
}

.roadmap-split--wide {
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  margin-top: 0;
}

.roadmap-copy,
.decision-list,
.day-card,
.maturity-step,
.ai-use-card,
.platform-diagram,
.success-card,
.roadmap-callout {
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.18);
}

.roadmap-copy {
  padding: 28px;
}

.roadmap-copy h3 {
  font-size: 1.65rem;
}

.decision-list {
  display: grid;
  gap: 10px;
  padding: 22px;
}

.decision-list span,
.ai-ready-checklist span {
  position: relative;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
  font-weight: 800;
  padding: 12px 12px 12px 38px;
}

.decision-list span::before,
.ai-ready-checklist span::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 50%;
  width: 10px;
  height: 10px;
  border: 3px solid var(--teal);
  border-left: 0;
  border-top: 0;
  transform: translateY(-65%) rotate(45deg);
}

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

.day-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  transition: transform 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}

.day-card:hover,
.maturity-step:hover,
.ai-use-card:hover,
.success-card:hover {
  transform: translateY(-4px);
  border-color: rgba(20, 184, 166, 0.42);
  background: rgba(255, 255, 255, 0.11);
}

.day-card__number {
  display: inline-grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--teal), var(--blue));
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 900;
  box-shadow: 0 14px 30px rgba(20, 184, 166, 0.2);
}

.day-card h3 {
  font-size: 1.28rem;
}

.day-card h4 {
  margin: 6px 0 -4px;
  color: var(--teal);
  font-size: 0.82rem;
  text-transform: uppercase;
}

.day-card ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding-left: 18px;
}

.day-card__goal,
.impact {
  margin: 0;
}

.impact {
  margin-top: auto;
  border-top: 1px solid var(--border-dark);
  padding-top: 14px;
}

.maturity-ladder {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.maturity-step {
  position: relative;
  padding: 22px;
  transition: transform 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}

.maturity-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 36px;
  right: -11px;
  z-index: 2;
  width: 20px;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--blue));
}

.maturity-step span {
  display: inline-block;
  margin-bottom: 14px;
  border-radius: var(--radius);
  background: rgba(20, 184, 166, 0.14);
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 900;
  padding: 6px 9px;
}

.maturity-step h3 {
  min-height: 52px;
  font-size: 1.05rem;
}

.maturity-step strong {
  display: block;
  margin-top: 14px;
  color: #fef3c7;
}

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

.ai-use-card {
  padding: 22px;
  transition: transform 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}

.ai-use-card h3 {
  font-size: 1.22rem;
}

.use-list {
  margin: 10px 0 16px;
  font-weight: 750;
}

.ai-use-card dl {
  display: grid;
  gap: 10px;
  margin: 0;
}

.ai-use-card dl div {
  border-left: 3px solid rgba(20, 184, 166, 0.58);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  padding: 10px 12px;
}

.ai-use-card dt {
  color: var(--teal);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.ai-use-card dd {
  margin: 4px 0 0;
  font-size: 0.92rem;
}

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

.platform-diagram {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  padding: 18px;
}

.platform-diagram article {
  position: relative;
  min-height: 174px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.07);
  padding: 18px;
}

.platform-diagram article:nth-child(-n + 4)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -13px;
  z-index: 2;
  width: 14px;
  height: 14px;
  border-top: 2px solid var(--teal);
  border-right: 2px solid var(--teal);
  transform: translateY(-50%) rotate(45deg);
}

.platform-diagram h3 {
  font-size: 1rem;
}

.platform-diagram p {
  margin: 10px 0 0;
  font-size: 0.92rem;
}

.governance-layer {
  grid-column: 1 / -1;
  min-height: auto;
  border-color: rgba(245, 158, 11, 0.42) !important;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(20, 184, 166, 0.08)) !important;
}

.success-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.success-card {
  min-height: 100px;
  display: grid;
  align-items: center;
  color: #e2e8f0;
  font-weight: 850;
  padding: 18px;
  transition: transform 200ms var(--ease), border-color 200ms var(--ease), background 200ms var(--ease);
}

.roadmap-callout {
  margin-top: 72px;
  padding: clamp(26px, 4vw, 42px);
  background:
    linear-gradient(135deg, rgba(20, 184, 166, 0.18), rgba(37, 99, 235, 0.13)),
    rgba(255, 255, 255, 0.08);
}

.roadmap-callout h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.roadmap-callout p {
  max-width: 880px;
  margin: 16px 0 0;
  font-size: 1.08rem;
}

.roadmap-callout__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.contact-links a {
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  font-weight: 800;
  padding: 10px 12px;
  text-decoration: none;
  transition: background 180ms var(--ease), transform 180ms var(--ease);
}

.contact-links a:hover {
  transform: translateY(-2px);
  background: rgba(20, 184, 166, 0.22);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--white);
  color: var(--muted);
  padding-block: 26px;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

.site-footer p {
  margin: 0;
  font-size: 0.9rem;
}

.back-to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 90;
  width: 46px;
  height: 46px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  box-shadow: var(--shadow);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 180ms var(--ease), transform 180ms var(--ease), background 180ms var(--ease);
}

.back-to-top:hover {
  background: var(--blue);
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 620ms var(--ease), transform 620ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes heroReveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes panelIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes floatShape {
  0%,
  100% {
    transform: translate3d(0, var(--parallax-y), 0) rotate(16deg);
  }
  50% {
    transform: translate3d(0, calc(var(--parallax-y) - 18px), 0) rotate(22deg);
  }
}

@keyframes connectorFlow {
  to {
    stroke-dashoffset: -18;
  }
}

@media (max-width: 1120px) {
  .nav__links a {
    font-size: 0.82rem;
    padding-inline: 8px;
  }

  .hero__grid,
  .split-layout,
  .architecture-grid,
  .about__grid {
    grid-template-columns: 1fr;
  }

  .hero-card {
    max-width: 720px;
  }

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

  .implemented-grid,
  .roadmap,
  .extension-grid,
  .demonstrates-grid,
  .maturity-ladder,
  .ai-use-case-grid,
  .success-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .platform-diagram article:nth-child(-n + 4)::after,
  .maturity-step:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 960px) {
  .nav-toggle {
    display: block;
    position: relative;
    z-index: 102;
  }

  .nav__links {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    display: grid;
    gap: 6px;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    border-bottom: 1px solid var(--border);
    background: rgba(248, 250, 252, 0.98);
    padding: 16px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: opacity 220ms var(--ease), transform 220ms var(--ease);
  }

  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__links a {
    width: min(100%, 680px);
    margin-inline: auto;
    padding: 15px 14px;
    background: var(--white);
  }

  .section {
    padding-block: 76px;
  }

  .hero {
    min-height: auto;
    padding-block: 72px 84px;
  }

  .hero__title {
    font-size: 3.15rem;
  }

  .hero__subtitle {
    font-size: 1.08rem;
  }

  .section-heading h2 {
    font-size: 2.1rem;
  }

  .feature-grid,
  .kpi-engineering-grid,
  .findings-grid,
  .ai-grid,
  .security-grid,
  .code-grid,
  .roadmap-split,
  .roadmap-split--wide,
  .day-roadmap {
    grid-template-columns: 1fr;
  }

  .roadmap-hero h2 {
    font-size: 3rem;
  }

  .tab-intro {
    flex-direction: column;
  }

  .report-frame iframe {
    height: 560px;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .brand__subtitle {
    display: none;
  }

  .hero__title {
    font-size: 2.5rem;
  }

  .hero__actions,
  .contact-links,
  .tab-list {
    flex-direction: column;
    align-items: stretch;
  }

  .button,
  .tab-button {
    width: 100%;
  }

  .metric-band {
    margin-top: 0;
    background: var(--white);
    padding-block: 14px;
  }

  .metric-band__grid,
  .implemented-grid,
  .roadmap,
  .extension-grid,
  .demonstrates-grid,
  .security-flow,
  .maturity-ladder,
  .ai-use-case-grid,
  .ai-ready-checklist,
  .platform-diagram,
  .success-grid {
    grid-template-columns: 1fr;
  }

  .metric-card {
    min-height: 112px;
  }

  .model-diagram {
    min-height: auto;
    display: grid;
    gap: 12px;
    padding: 18px;
  }

  .model-diagram__lines {
    display: none;
  }

  .model-node {
    position: relative;
    inset: auto;
    width: 100%;
    min-height: 56px;
    transform: none;
  }

  .node-fact {
    order: -1;
    width: 100%;
    transform: none;
  }

  .security-flow span:not(:last-child)::after {
    display: none;
  }

  .report-frame iframe {
    height: 440px;
  }

  .roadmap-hero h2 {
    font-size: 2.42rem;
  }

  .roadmap-block,
  .roadmap-callout {
    margin-top: 54px;
  }

  .roadmap-callout__actions {
    flex-direction: column;
  }
}

@media (max-width: 460px) {
  body {
    font-size: 15px;
  }

  .nav {
    width: min(100% - 24px, 1240px);
  }

  .brand__mark {
    width: 38px;
    height: 38px;
  }

  .brand__title {
    font-size: 0.94rem;
  }

  .hero__title {
    font-size: 2.12rem;
  }

  .section-heading h2 {
    font-size: 1.78rem;
  }

  .tab-panels,
  .summary-panel,
  .topic-card,
  .finding-card,
  .extension-card,
  .semantic-examples,
  .question-panel,
  .tuning-panel,
  .about-card,
  .roadmap-card {
    padding: 18px;
  }

  .report-frame iframe {
    height: 360px;
  }
}

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

  .reveal,
  .hero-reveal {
    opacity: 1;
    transform: none;
  }
}