:root {
  --navy: #0a0f2c;
  --navy-2: #17244f;
  --orange: #ff8c00;
  --orange-2: #cc6a00;
  --text: #1a1f35;
  --muted: #4b5579;
  --line: #dce2ee;
  --surface: #f4f6fb;
  --white: #ffffff;
  --radius: 16px;
  --container: 1200px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #ffffff 0%, #f9fbff 36%, #ffffff 100%);
  line-height: 1.7;
}

a {
  color: inherit;
}

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

.insight-shell {
  overflow: hidden;
}

.container {
  width: min(var(--container), 92%);
  margin: 0 auto;
}

.section {
  padding: 5rem 0;
  border-top: 1px solid var(--line);
  background: var(--white);
}

.section.alt {
  background: var(--surface);
}

.eyebrow {
  color: var(--orange);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  font-weight: 700;
  margin-bottom: 0.8rem;
}

.section-title {
  font-family: "Poppins", sans-serif;
  font-size: clamp(1.7rem, 2.8vw, 2.8rem);
  line-height: 1.15;
  margin-bottom: 1rem;
  color: var(--navy);
}

.section-intro {
  color: var(--muted);
  max-width: 720px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid rgba(10, 15, 44, 0.1);
  background: rgba(255, 255, 255, 0.93);
  backdrop-filter: blur(10px);
}

.topbar-inner {
  height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
}

.brand img {
  height: 46px;
  width: auto;
}

.brand span {
  font-size: 0.66rem;
  letter-spacing: 2px;
  font-weight: 700;
  color: var(--navy);
}

.topnav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topnav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.83rem;
  font-weight: 600;
}

.topnav a:hover {
  color: var(--navy);
}

.nav-btn {
  text-decoration: none;
  background: var(--navy);
  color: var(--white) !important;
  border-radius: 8px;
  padding: 0.58rem 0.95rem;
}

.hero {
  min-height: calc(100vh - 74px);
  display: grid;
  align-items: center;
  position: relative;
  background:
    radial-gradient(
      circle at 86% 22%,
      rgba(255, 140, 0, 0.17),
      transparent 34%
    ),
    radial-gradient(circle at 10% 90%, rgba(10, 15, 44, 0.08), transparent 36%),
    #ffffff;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 2.2rem;
  align-items: center;
}

.hero h1 {
  font-family: "Poppins", sans-serif;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.06;
  color: var(--navy);
  margin-bottom: 1rem;
}

.hero p {
  color: var(--muted);
  max-width: 640px;
  margin-bottom: 1.55rem;
}

.hero-proof {
  margin-top: -0.45rem;
  margin-bottom: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  max-width: 680px;
}

.hero-proof span {
  display: inline-flex;
  align-items: center;
  gap: 0.32rem;
  border: 1px solid rgba(10, 15, 44, 0.15);
  background: #fff;
  border-radius: 999px;
  padding: 0.27rem 0.56rem;
  color: #2b3963;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18px;
  line-height: 1.2;
}

.hero-proof span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 140, 0, 0.15);
}

.hero-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.btn {
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.88rem;
  border-radius: 10px;
  padding: 0.72rem 1.2rem;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.btn.primary {
  background: var(--orange);
  color: var(--white);
}

.btn.primary:hover {
  background: var(--orange-2);
}

.btn.secondary {
  background: transparent;
  color: var(--navy);
  border-color: rgba(10, 15, 44, 0.2);
}

.btn.secondary:hover {
  border-color: var(--navy);
}

.arch-card {
  border: 1px solid rgba(10, 15, 44, 0.12);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: 0 20px 44px rgba(10, 15, 44, 0.12);
  padding: 1rem;
}

.arch-card h3 {
  font-family: "Poppins", sans-serif;
  font-size: 1rem;
  color: var(--navy);
  margin-bottom: 0.85rem;
}

.hero-arch-diagram {
  border: 1px solid var(--line);
  border-radius: 12px;
  background:
    radial-gradient(
      circle at 80% 10%,
      rgba(255, 140, 0, 0.13),
      transparent 32%
    ),
    linear-gradient(180deg, #ffffff 0%, #f8faff 100%);
  padding: 0.5rem;
}

.hero-arch-svg {
  width: 100%;
  height: auto;
  display: block;
}

.hero-node {
  fill: #ffffff;
  stroke: rgba(10, 15, 44, 0.28);
  stroke-width: 1.3;
}

.hero-node-accent {
  fill: rgba(255, 140, 0, 0.12);
  stroke: rgba(255, 140, 0, 0.48);
}

.hero-node-label {
  fill: #1e2b50;
  text-anchor: middle;
  font-size: 11px;
  font-weight: 700;
}

.hero-link,
.hero-link-animated {
  fill: none;
  stroke: rgba(10, 15, 44, 0.38);
  stroke-width: 1.5;
  marker-end: url(#heroArrow);
}

.hero-link-animated {
  stroke: rgba(255, 140, 0, 0.95);
  stroke-dasharray: 6 8;
  animation: archPulse 2.2s linear infinite;
}

@keyframes archPulse {
  0% {
    stroke-dashoffset: 28;
    opacity: 0.15;
  }
  50% {
    opacity: 0.8;
  }
  100% {
    stroke-dashoffset: 0;
    opacity: 0.15;
  }
}

.badge-strip {
  margin-top: 1.3rem;
  border-top: 1px solid var(--line);
  padding-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.badge-strip span {
  border: 1px solid rgba(10, 15, 44, 0.15);
  border-radius: 999px;
  padding: 0.38rem 0.68rem;
  background: #fff;
  color: #2f3d6b;
  font-size: 0.75rem;
  font-weight: 700;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 330px;
  gap: 1.5rem;
  align-items: start;
}

.stat-card {
  border: 1px solid rgba(10, 15, 44, 0.16);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #ffffff 0%, #f7f9ff 100%);
  padding: 1rem;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.5rem 0;
  border-bottom: 1px dashed rgba(10, 15, 44, 0.18);
}

.stat-row:last-child {
  border-bottom: none;
}

.stat-row dt {
  color: #2f3d6b;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 1.1px;
  font-weight: 700;
}

.stat-key {
  display: inline-flex;
  align-items: center;
  gap: 0.36rem;
}

.stat-key svg {
  color: var(--orange);
  stroke-width: 2.2;
}

.stat-row dd {
  color: var(--navy);
  text-align: right;
  font-weight: 700;
  font-size: 0.84rem;
}

.challenge-grid {
  margin-top: 1.3rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.challenge-card,
.outcome-card,
.related-card,
.lesson-card {
  border: 1px solid rgba(10, 15, 44, 0.12);
  border-radius: 14px;
  background: #fff;
  padding: 0.95rem;
}

.outcome-card {
  position: relative;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease;
}

.outcome-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 140, 0, 0.42);
  box-shadow: 0 10px 22px rgba(10, 15, 44, 0.08);
}

.outcome-lead {
  margin-bottom: 0.62rem;
}

.outcome-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  border: 1px solid rgba(255, 140, 0, 0.35);
  background: linear-gradient(
    135deg,
    rgba(255, 140, 0, 0.16),
    rgba(255, 140, 0, 0.04)
  );
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.outcome-icon svg {
  color: #cc6a00;
  stroke-width: 2.1;
}

.outcome-metric {
  display: inline-flex;
  align-items: center;
  font-family: "Poppins", sans-serif;
  font-size: 1.4rem;
  line-height: 1;
  color: #0a0f2c;
}

.challenge-card {
  min-height: 138px;
  position: relative;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease;
}

.challenge-card::after {
  content: "→";
  position: absolute;
  right: 0.78rem;
  bottom: 0.72rem;
  font-size: 0.82rem;
  color: var(--orange);
  opacity: 0;
  transform: translateX(-4px);
  transition:
    opacity 0.22s ease,
    transform 0.22s ease;
}

.challenge-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 140, 0, 0.45);
  box-shadow: 0 12px 24px rgba(10, 15, 44, 0.1);
}

.challenge-card:hover::after {
  opacity: 0.95;
  transform: translateX(0);
}

.challenge-card h4,
.outcome-card h4,
.related-card h4,
.lesson-card h4,
.decision-head h4 {
  font-family: "Poppins", sans-serif;
  font-size: 1rem;
  line-height: 1.25;
  color: var(--navy);
}

.challenge-card p,
.outcome-card p,
.related-card p,
.lesson-card p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0.52rem;
}

.diagram-wrap {
  margin-top: 1.1rem;
  border: 1px solid rgba(10, 15, 44, 0.15);
  border-radius: 20px;
  background: #fff;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(10, 15, 44, 0.1);
}

.diagram-wrap svg {
  width: 100%;
  height: auto;
  display: block;
}

.diagram-node {
  fill: #f8faff;
  stroke: rgba(10, 15, 44, 0.45);
  stroke-width: 1.1;
}

.diagram-node-accent {
  fill: rgba(255, 140, 0, 0.14);
  stroke: rgba(255, 140, 0, 0.62);
}

.diagram-line {
  stroke: rgba(10, 15, 44, 0.5);
  stroke-width: 1.05;
  fill: none;
  marker-end: url(#arrow);
}

.diagram-label {
  fill: #1d294b;
  font-size: 11px;
  font-weight: 700;
  text-anchor: middle;
}

.diagram-label-left {
  fill: #0a0f2c;
  font-size: 12px;
  font-weight: 700;
  text-anchor: start;
}

.diagram-glyph,
.diagram-glyph-azure {
  fill: none;
  stroke: #0a0f2c;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.diagram-glyph-fill {
  fill: #0a0f2c;
}

.diagram-glyph-azure {
  stroke: #cc6a00;
}

.metrics-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.metrics-card {
  border: 1px solid rgba(10, 15, 44, 0.14);
  border-radius: 14px;
  background: #fff;
  padding: 0.85rem 0.92rem;
  min-height: 112px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease;
}

.metrics-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 140, 0, 0.4);
  box-shadow: 0 10px 24px rgba(10, 15, 44, 0.09);
}

.metrics-key {
  display: inline-flex;
  align-items: center;
  gap: 0.36rem;
  color: #43507a;
  font-size: 0.72rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 700;
}

.metrics-key svg {
  color: var(--orange);
  stroke-width: 2.2;
}

.metrics-value {
  margin-top: 0.65rem;
  color: #0a0f2c;
  font-family: "Poppins", sans-serif;
  font-size: 1.06rem;
  line-height: 1.3;
}

.compare-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.95rem;
}

.compare-col {
  border: 1px solid rgba(10, 15, 44, 0.14);
  border-radius: 16px;
  padding: 1rem;
  background: #fff;
}

.compare-col h3 {
  font-family: "Poppins", sans-serif;
  font-size: 1rem;
  color: #0a0f2c;
  margin-bottom: 0.7rem;
}

.compare-col.before {
  background: linear-gradient(180deg, #ffffff 0%, #f7f9ff 100%);
}

.compare-col.after {
  border-color: rgba(255, 140, 0, 0.4);
  background: linear-gradient(180deg, rgba(255, 140, 0, 0.11) 0%, #fff 68%);
}

.compare-flow {
  display: grid;
  gap: 0.45rem;
}

.compare-step {
  border: 1px solid rgba(10, 15, 44, 0.12);
  border-radius: 10px;
  background: #fff;
  padding: 0.55rem 0.68rem;
  color: #223158;
  font-size: 0.86rem;
  font-weight: 700;
}

.compare-col.after .compare-step {
  border-color: rgba(255, 140, 0, 0.25);
}

.compare-arrow {
  text-align: center;
  color: var(--orange);
  font-size: 0.9rem;
  line-height: 1;
  font-weight: 800;
}

.timeline {
  margin-top: 1.1rem;
  display: grid;
  gap: 0.7rem;
}

.decision-item {
  border: 1px solid rgba(10, 15, 44, 0.13);
  border-radius: 12px;
  background: #fff;
  overflow: clip;
}

.decision-head {
  width: 100%;
  border: none;
  background: transparent;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0.95rem;
  cursor: pointer;
}

.decision-head span {
  color: var(--orange);
}

.decision-body {
  border-top: 1px solid rgba(10, 15, 44, 0.08);
  color: var(--muted);
  font-size: 0.92rem;
  padding: 0 0.95rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.decision-item.open .decision-body {
  padding: 0.8rem 0.95rem 0.95rem;
  max-height: 260px;
}

.deep-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.deep-text {
  border: 1px solid rgba(10, 15, 44, 0.12);
  border-radius: 14px;
  padding: 1rem;
  background: #fff;
}

.deep-text p {
  color: var(--muted);
  margin-top: 0.55rem;
}

.flow-card {
  border: 1px solid rgba(10, 15, 44, 0.12);
  border-radius: 14px;
  padding: 1rem;
  background: linear-gradient(180deg, #ffffff 0%, #f7f9ff 100%);
}

.flow-steps {
  display: grid;
  gap: 0.45rem;
}

.flow-step {
  border: 1px solid rgba(10, 15, 44, 0.13);
  border-radius: 9px;
  background: #fff;
  padding: 0.45rem 0.65rem;
  color: #243156;
  font-weight: 600;
  font-size: 0.83rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.flow-step-icon {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  border: 1px solid rgba(255, 140, 0, 0.32);
  background: rgba(255, 140, 0, 0.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.flow-step-icon svg {
  color: #cc6a00;
  stroke-width: 2.2;
}

.flow-step-label {
  line-height: 1.25;
}

.flow-step-arrow {
  display: block;
  text-align: center;
  color: var(--orange);
  font-size: 0.82rem;
  font-weight: 800;
}

.tech-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.tech-item {
  border: 1px solid rgba(10, 15, 44, 0.12);
  border-radius: 12px;
  background: #fff;
  padding: 0.95rem 0.82rem;
  min-height: 172px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  gap: 0.5rem;
}

.tech-item img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  filter: grayscale(1) brightness(0.25);
}

.tech-item strong {
  font-size: 0.88rem;
  color: #1f2d54;
  font-weight: 700;
  line-height: 1.2;
}

.tech-item p {
  font-size: 0.74rem;
  color: #51608a;
  line-height: 1.35;
  margin: 0;
}

.accordion {
  margin-top: 1rem;
  display: grid;
  gap: 0.65rem;
}

.challenge-flow-list {
  margin-top: 1rem;
  display: grid;
  gap: 0.68rem;
}

.challenge-flow-item {
  border: 1px solid rgba(10, 15, 44, 0.13);
  border-radius: 14px;
  background: #fff;
  padding: 0.85rem;
  transition:
    border-color 0.22s ease,
    box-shadow 0.22s ease,
    transform 0.22s ease;
}

.challenge-flow-item:hover {
  border-color: rgba(255, 140, 0, 0.42);
  box-shadow: 0 12px 24px rgba(10, 15, 44, 0.09);
  transform: translateY(-2px);
}

.challenge-flow-grid {
  display: grid;
  grid-template-columns: 1.05fr auto 1.45fr auto 0.9fr;
  gap: 0.7rem;
  align-items: center;
}

.challenge-flow-cell {
  border: 1px solid rgba(10, 15, 44, 0.1);
  border-radius: 11px;
  background: #fbfcff;
  padding: 0.72rem 0.75rem;
  min-height: 86px;
}

.challenge-flow-cell h4 {
  font-family: "Poppins", sans-serif;
  font-size: 0.97rem;
  line-height: 1.25;
  color: var(--navy);
}

.challenge-flow-cell p {
  font-size: 0.84rem;
  line-height: 1.4;
  color: var(--muted);
}

.challenge-flow-label {
  text-transform: uppercase;
  letter-spacing: 1.1px;
  font-size: 0.66rem;
  font-weight: 800;
  color: var(--orange);
  margin-bottom: 0.36rem;
}

.challenge-flow-sep {
  color: var(--orange);
  font-size: 0.84rem;
  font-weight: 800;
}

.challenge-flow-cell.outcome {
  background: linear-gradient(135deg, rgba(255, 140, 0, 0.08), #fff 60%);
  border-color: rgba(255, 140, 0, 0.33);
}

.challenge-flow-cell.outcome strong {
  color: #0a0f2c;
  font-size: 0.95rem;
  line-height: 1.3;
}

.accordion-item {
  border: 1px solid rgba(10, 15, 44, 0.12);
  border-radius: 12px;
  overflow: clip;
  background: #fff;
}

.accordion-trigger {
  width: 100%;
  border: none;
  background: transparent;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  text-align: left;
  padding: 0.85rem 0.95rem;
  cursor: pointer;
}

.accordion-trigger strong {
  color: var(--navy);
  font-size: 0.96rem;
}

.accordion-trigger span {
  color: var(--orange);
}

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  padding: 0 0.95rem;
  color: var(--muted);
  font-size: 0.92rem;
  border-top: 1px solid rgba(10, 15, 44, 0.08);
  transition: max-height 0.3s ease;
}

.accordion-item.open .accordion-panel {
  max-height: 300px;
  padding: 0.82rem 0.95rem 0.95rem;
}

.outcome-grid,
.lessons-grid,
.related-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.quote-block {
  margin-top: 1rem;
  border: 1px solid rgba(255, 140, 0, 0.28);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(255, 140, 0, 0.09), #fff 60%);
  padding: 2.2rem 1.4rem;
}

.quote-block p {
  font-family: "Poppins", sans-serif;
  font-size: clamp(3rem, 5.8vw, 3.75rem);
  color: var(--navy);
  line-height: 1.08;
  text-align: center;
  letter-spacing: -0.02em;
  max-width: 980px;
  margin: 0 auto;
}

.related-card {
  display: flex;
  flex-direction: column;
  gap: 0.72rem;
  padding: 0;
  overflow: hidden;
}

.related-thumb {
  border-bottom: 1px solid rgba(10, 15, 44, 0.1);
  background:
    radial-gradient(
      circle at 88% 12%,
      rgba(255, 140, 0, 0.18),
      transparent 35%
    ),
    linear-gradient(180deg, #f8faff 0%, #ffffff 100%);
  padding: 0.75rem;
}

.related-thumb-top {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid rgba(10, 15, 44, 0.14);
  border-radius: 999px;
  padding: 0.2rem 0.5rem;
  color: #24325a;
  font-size: 0.68rem;
  font-weight: 700;
  margin-bottom: 0.52rem;
}

.related-thumb-top svg {
  color: var(--orange);
  stroke-width: 2.3;
}

.related-thumb-lines {
  display: grid;
  gap: 0.3rem;
}

.related-thumb-lines span {
  display: block;
  height: 7px;
  border-radius: 4px;
  background: linear-gradient(
    90deg,
    rgba(10, 15, 44, 0.2),
    rgba(10, 15, 44, 0.07)
  );
}

.related-thumb-lines span:nth-child(1) {
  width: 92%;
}

.related-thumb-lines span:nth-child(2) {
  width: 76%;
}

.related-thumb-lines span:nth-child(3) {
  width: 58%;
}

.related-card h4,
.related-card a {
  padding-left: 0.95rem;
  padding-right: 0.95rem;
}

.related-card h4 {
  margin-top: 0.15rem;
}

.related-card a {
  color: var(--orange-2);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 700;
  padding-bottom: 0.92rem;
}

.about-strip {
  margin-top: 1rem;
  border: 1px solid rgba(10, 15, 44, 0.12);
  border-radius: 16px;
  background: #fff;
  padding: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.about-strip span {
  border-radius: 999px;
  border: 1px solid rgba(10, 15, 44, 0.16);
  padding: 0.38rem 0.65rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: #2a3861;
}

.big-cta {
  background: linear-gradient(128deg, #0a0f2c 0%, #1b2b63 100%);
  color: #fff;
  padding: 7.2rem 0;
}

.big-cta .section-title,
.big-cta .section-intro {
  color: #fff;
}

.big-cta .section-title {
  font-size: clamp(2.2rem, 5.2vw, 4.1rem);
  line-height: 1.04;
  max-width: 900px;
  margin-bottom: 0.95rem;
}

.big-cta .section-intro {
  font-size: clamp(1rem, 1.75vw, 1.35rem);
  max-width: 780px;
  opacity: 0.95;
}

.cta-shell {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.2rem;
}

.cta-shell .btn {
  background: var(--orange);
  color: #fff;
  padding: 0.95rem 1.45rem;
  border-radius: 12px;
  font-size: 1rem;
}

.site-footer {
  background: #0a0f2c;
  color: rgba(255, 255, 255, 0.75);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.35rem 0;
}

.site-footer a {
  color: var(--orange);
  text-decoration: none;
  font-weight: 700;
}

.fade-up {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.35s ease,
    transform 0.35s ease;
  transition-delay: calc(var(--stagger, 0) * 30ms);
}

.fade-up.in {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1100px) {
  .hero-grid,
  .two-col,
  .deep-grid {
    grid-template-columns: 1fr;
  }

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

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

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

@media (max-width: 820px) {
  .topbar-inner {
    height: auto;
    padding: 0.8rem 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .topnav {
    flex-wrap: wrap;
  }

  .brand span {
    display: none;
  }

  .challenge-flow-grid {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .challenge-flow-sep {
    text-align: center;
  }

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

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

@media (max-width: 620px) {
  .hero {
    min-height: auto;
    padding: 3rem 0;
  }

  .challenge-grid,
  .metrics-grid,
  .tech-grid,
  .outcome-grid,
  .lessons-grid,
  .related-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 3.7rem 0;
  }

  .big-cta {
    padding: 5rem 0;
  }
}