:root {
  --bg: #f4f4f4;
  --ink: #3a3a3a;
  --ink-strong: #1c1c1c;
  --panel: #fbfbfb;
  --panel-border: #d8d8d8;
  --accent: #444;
  --accent-strong: #555;
  --nav-text: #f7f7f7;
  --max-w: 1100px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Source Sans 3", "Lucida Sans Unicode", "Lucida Grande", sans-serif;
  line-height: 1.5;
}

.container {
  width: min(calc(100% - 2.2rem), var(--max-w));
  margin-inline: auto;
}

.topbar {
  background: #000;
  border-bottom: 1px solid #2e2e2e;
  position: sticky;
  top: 0;
  z-index: 40;
}

.topbar-inner {
  min-height: 82px;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand img {
  height: clamp(42px, 5vw, 54px);
  width: auto;
  display: block;
}

.nav {
  margin-left: auto;
  display: flex;
  gap: 1.15rem;
}

.nav a {
  color: var(--nav-text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: 0.01em;
}

.nav a:hover {
  color: #d4d4d4;
}

.menu-toggle {
  display: none;
  margin-left: auto;
  border: 1px solid #555;
  background: #2a2a2a;
  color: var(--nav-text);
  font-weight: 600;
  padding: 0.4rem 0.7rem;
  border-radius: 6px;
}

.hero {
  background: linear-gradient(140deg, #3a3a3a, #5a5a5a);
  color: #f5f5f5;
}

.hero-inner {
  padding: clamp(3rem, 8vw, 6rem) 0;
  max-width: 760px;
}

.eyebrow {
  margin: 0;
  color: #e1e1e1;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  color: var(--ink-strong);
  line-height: 1.15;
  margin-top: 0;
}

.hero h1 {
  color: #fff;
  font-size: clamp(2rem, 4.6vw, 3.45rem);
  margin: 0.65rem 0 1rem;
}

.hero-copy {
  margin: 0 0 1.5rem;
  max-width: 62ch;
  font-size: clamp(1rem, 2.2vw, 1.15rem);
}

.cta {
  display: inline-block;
  background: linear-gradient(90deg, #ffffff, #ececec);
  color: #111;
  font-weight: 700;
  text-decoration: none;
  padding: 0.75rem 1.1rem;
  border-radius: 6px;
  border: 1px solid #d4d4d4;
}

.section {
  padding: clamp(2.5rem, 7vw, 4.3rem) 0;
}

.section h2 {
  font-size: clamp(1.65rem, 3.8vw, 2.2rem);
  margin-bottom: 1.3rem;
}

.legacy-title {
  display: block;
  margin-bottom: 1.1rem;
}

.legacy-title h2 {
  margin: 0;
}

.section-intro {
  max-width: 78ch;
  margin: 0 0 1.1rem;
}

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

.card {
  background: linear-gradient(180deg, #fcfcfc, #f3f3f3);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 1rem 1.1rem;
}

.card-icon {
  width: 70px;
  height: auto;
  display: block;
  margin-bottom: 0.55rem;
}

.card h3 {
  margin-bottom: 0.55rem;
}

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

.audience-card {
  background: linear-gradient(180deg, #fcfcfc, #f3f3f3);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 1rem 1.1rem;
}

.audience-card h3 {
  margin-bottom: 0.55rem;
}

.section-alt {
  background: #ededed;
  border-top: 1px solid #dddddd;
  border-bottom: 1px solid #dddddd;
}

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

.step {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid #cdcdcd;
  border-radius: 10px;
  padding: 1rem;
}

.step span {
  display: inline-block;
  color: #666;
  font-weight: 700;
  margin-bottom: 0.45rem;
}

.step h3 {
  margin: 0 0 0.55rem;
  font-size: 1.02rem;
}

.step ul {
  margin: 0;
  padding-left: 1.1rem;
}

.step li {
  margin: 0.32rem 0;
}

.delivery-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.2rem;
  align-items: start;
}

.outcomes {
  margin: 0;
  padding-left: 1.2rem;
}

.outcomes li {
  margin: 0.4rem 0;
}

.highlight {
  background: linear-gradient(180deg, #f6f6f6, #ececec);
  border: 1px solid #d4d4d4;
  border-radius: 10px;
  padding: 1rem;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.capability-card {
  background: #f2f7f9;
  border: 1px solid #c5d2d7;
  border-radius: 10px;
  padding: 1rem 1.1rem;
}

.capability-card h3 {
  margin-bottom: 0.6rem;
}

.capability-card ul {
  margin: 0;
  padding-left: 1.1rem;
}

.capability-card li {
  margin: 0.38rem 0;
}

.stack-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.stack-group {
  background: #f6f6f6;
  border: 1px solid #d7d7d7;
  border-radius: 10px;
  padding: 1rem;
}

.stack-group h3 {
  margin: 0 0 0.7rem;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.chip-row span {
  display: inline-block;
  background: #efefef;
  border: 1px solid #d5d5d5;
  border-radius: 999px;
  padding: 0.24rem 0.65rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #202020;
}

.industry-row span {
  background: #f0f0f0;
}

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

.model-card {
  background: #f7f7f7;
  border: 1px solid #d8d8d8;
  border-radius: 10px;
  padding: 1rem 1.1rem;
}

.model-card h3 {
  margin-bottom: 0.6rem;
}

.governance-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.governance-list span {
  display: inline-block;
  background: #f2f2f2;
  border: 1px solid #d7d7d7;
  border-radius: 999px;
  padding: 0.3rem 0.65rem;
  font-size: 0.92rem;
  font-weight: 600;
}

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

.proof-card {
  background: #f8f8f8;
  border: 1px solid #d9d9d9;
  border-radius: 10px;
  padding: 1rem 1.1rem;
}

.proof-card h3 {
  margin-bottom: 0.55rem;
}

.proof-card p {
  margin: 0 0 0.6rem;
}

.proof-card strong {
  color: #1f1f1f;
  font-size: 0.95rem;
}

.footer {
  background: #2c2c2c;
  color: #ededed;
  padding: clamp(2rem, 7vw, 3.3rem) 0;
}

.footer h2 {
  color: #fff;
  margin-bottom: 0.15rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1.2rem;
  align-items: flex-start;
}

.contact-meta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  align-items: flex-end;
}

.contact-meta a {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}

.cta-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.9rem;
}

.cta-link {
  display: inline-block;
  border: 1px solid #8a8a8a;
  color: #f2f2f2;
  text-decoration: none;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.36rem 0.78rem;
}

.cta-link:hover {
  border-color: #d2d2d2;
  color: #fff;
}

@media (max-width: 980px) {
  .card-grid,
  .audience-grid,
  .steps,
  .capability-grid,
  .stack-groups,
  .model-grid,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .delivery-layout {
    grid-template-columns: 1fr;
  }

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

  .contact-meta {
    align-items: flex-start;
  }

}

@media (max-width: 760px) {
  .menu-toggle {
    display: inline-block;
  }

  .nav {
    position: absolute;
    top: 82px;
    left: 0;
    right: 0;
    background: #000;
    flex-direction: column;
    padding: 0.85rem 1.1rem 1rem;
    border-bottom: 1px solid #3a3a3a;
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    pointer-events: none;
    transition: transform 180ms ease, opacity 180ms ease;
  }

  .nav.open {
    transform: scaleY(1);
    opacity: 1;
    pointer-events: auto;
  }

  .topbar-inner {
    gap: 0.65rem;
  }

}