:root {
  --bg: #f4f2ed;
  --bg-strong: #fbf8f2;
  --surface: rgba(255, 250, 243, 0.84);
  --surface-strong: #fffdf9;
  --surface-dark: #12263f;
  --text: #0f2236;
  --text-soft: #4f5f70;
  --line: rgba(15, 34, 54, 0.1);
  --line-strong: rgba(15, 34, 54, 0.18);
  --brand: #173a63;
  --brand-deep: #0d223b;
  --accent: #ad3f34;
  --accent-soft: rgba(173, 63, 52, 0.12);
  --gold: #d4aa57;
  --shadow-lg: 0 30px 80px rgba(16, 29, 43, 0.12);
  --shadow-md: 0 18px 42px rgba(16, 29, 43, 0.09);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --shell: 1200px;
  --hero-headline-offset: 2.35rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Avenir Next", "Helvetica Neue", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(23, 58, 99, 0.12), transparent 32%),
    radial-gradient(circle at 85% 4%, rgba(173, 63, 52, 0.14), transparent 20%),
    linear-gradient(180deg, #f8f4ed 0%, #f5f1ea 35%, #f1ede6 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(15, 34, 54, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 34, 54, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.22), transparent 70%);
}

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

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

section[id],
[id="top"] {
  scroll-margin-top: 5rem;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 0.85rem 1rem;
  border-radius: 999px;
  background: #0d1521;
  color: #fff;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

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

.section-shell,
.nav-shell {
  width: min(calc(100% - 2rem), var(--shell));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: rgba(249, 245, 238, 0.84);
  border-bottom: 1px solid rgba(255, 255, 255, 0.6);
}

.nav-shell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  line-height: 0;
}

.brand-logo {
  height: 3.35rem;
  width: auto;
  max-width: min(52vw, 240px);
}

.brand-logo-footer {
  height: 3rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.site-nav a {
  padding: 0.85rem 1rem;
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 0.95rem;
  font-weight: 700;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.78);
  color: var(--text);
}

.site-nav .nav-cta {
  background: var(--brand);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.site-nav .nav-cta:hover,
.site-nav .nav-cta:focus-visible {
  background: var(--brand-deep);
  color: #fff;
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
  border-radius: 999px;
  padding: 0.75rem 0.95rem;
  font: inherit;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
  min-width: 46px;
}

.hero-section,
.content-section,
.cta-section {
  position: relative;
}

.hero-section {
  overflow: clip;
  padding: 5.75rem 0 4.25rem;
}

.hero-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(10px);
  pointer-events: none;
}

.hero-orb-a {
  top: -7rem;
  right: -4rem;
  width: 24rem;
  height: 24rem;
  background: radial-gradient(circle, rgba(23, 58, 99, 0.2), transparent 68%);
}

.hero-orb-b {
  left: -7rem;
  bottom: -5rem;
  width: 20rem;
  height: 20rem;
  background: radial-gradient(circle, rgba(173, 63, 52, 0.18), transparent 70%);
}

.hero-grid,
.founder-grid,
.cta-shell,
.split-heading,
.workflow-showcase {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3rem;
  align-items: start;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.05fr) minmax(24rem, 0.95fr);
  gap: 3.5rem;
  align-items: start;
}

.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 40rem;
}

.hero-media {
  width: 100%;
  padding-top: var(--hero-headline-offset);
  display: flex;
  justify-content: center;
}

.hero-media-frame {
  position: relative;
  width: min(100%, 34rem);
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-xl);
  overflow: hidden;
  padding: 0.35rem;
  background:
    radial-gradient(circle at top right, rgba(212, 170, 87, 0.14), transparent 30%),
    linear-gradient(180deg, rgba(255, 252, 247, 0.92), rgba(248, 243, 235, 0.92));
  border: 1px solid rgba(255, 255, 255, 0.65);
  box-shadow: var(--shadow-lg);
}

.hero-media-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: calc(var(--radius-xl) - 10px);
  overflow: hidden;
  border: 1px solid rgba(23, 58, 99, 0.08);
  background: rgba(255, 255, 255, 0.72);
}

.hero-media-image {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.76rem;
  font-weight: 900;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Avenir Next", "Helvetica Neue", "Segoe UI", sans-serif;
  letter-spacing: -0.045em;
}

h1 {
  max-width: 10ch;
  font-size: clamp(3.4rem, 7vw, 5.2rem);
  line-height: 0.95;
}

h2 {
  max-width: 12ch;
  font-size: clamp(2.3rem, 4vw, 3.8rem);
  line-height: 1;
}

h3 {
  margin-bottom: 0.8rem;
  font-size: 1.18rem;
  line-height: 1.2;
}

p,
li,
span,
small {
  font-size: 1rem;
  line-height: 1.75;
}

p,
li {
  color: var(--text-soft);
}

.hero-lead,
.section-heading > p:last-child,
.split-heading > p {
  font-size: 1.18rem;
  line-height: 1.85;
}

.hero-lead {
  max-width: 34rem;
  margin: 1.4rem 0 0;
}

.hero-support {
  max-width: 35rem;
  margin: 1rem 0 0;
}

.hero-actions,
.cta-actions {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin: 2rem 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.4rem;
  padding: 0.9rem 1.4rem;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-deep));
  color: #fff;
  box-shadow: var(--shadow-md);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.68);
  color: var(--text);
  border: 1px solid rgba(15, 34, 54, 0.08);
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-proof li {
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(15, 34, 54, 0.07);
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 700;
}

.workflow-list-card,
.execution-card,
.comparison-table,
.faq-item,
.info-card,
.benefit-card,
.about-card,
.trust-card,
.name-card {
  border: 1px solid rgba(255, 255, 255, 0.65);
  background: #fffdfb;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-lg);
}

.quote-panel,
.cta-card,
.impact-band,
.metric-card {
  border: 1px solid rgba(255, 255, 255, 0.65);
  background: var(--surface);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-lg);
}

.chaos-flow-card {
  display: grid;
  grid-template-columns: 0.88fr auto 1.12fr;
  gap: 1rem;
  align-items: center;
}

.chaos-side,
.structure-side {
  min-height: 100%;
}

.visual-label,
.metric-label,
.band-label,
.panel-kicker,
.card-head span,
.cta-points span,
.trust-card span {
  display: inline-flex;
  margin-bottom: 0.8rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.chaos-cloud {
  position: relative;
  min-height: 19rem;
  padding: 1rem;
  border-radius: 28px;
  background:
    radial-gradient(circle at 20% 20%, rgba(173, 63, 52, 0.13), transparent 24%),
    radial-gradient(circle at 80% 70%, rgba(23, 58, 99, 0.14), transparent 22%),
    rgba(255, 255, 255, 0.54);
  border: 1px dashed rgba(173, 63, 52, 0.28);
}

.chaos-cloud span {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.72rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(16, 29, 43, 0.08);
}

.chaos-cloud span:nth-child(1) { top: 1.2rem; left: 0.8rem; transform: rotate(-9deg); }
.chaos-cloud span:nth-child(2) { top: 4.8rem; right: 1.1rem; transform: rotate(8deg); }
.chaos-cloud span:nth-child(3) { top: 8.4rem; left: 2rem; transform: rotate(-4deg); }
.chaos-cloud span:nth-child(4) { bottom: 3.8rem; right: 2.3rem; transform: rotate(7deg); }
.chaos-cloud span:nth-child(5) { bottom: 1rem; left: 1rem; transform: rotate(-6deg); }
.chaos-cloud span:nth-child(6) { top: 11.8rem; right: 0.6rem; transform: rotate(-7deg); }

.flow-arrow {
  width: 4.5rem;
  height: 2px;
  background: linear-gradient(90deg, rgba(173, 63, 52, 0.4), rgba(23, 58, 99, 0.95));
  position: relative;
}

.flow-arrow::after {
  content: "";
  position: absolute;
  right: -0.05rem;
  top: 50%;
  width: 0.9rem;
  height: 0.9rem;
  border-top: 2px solid var(--brand);
  border-right: 2px solid var(--brand);
  transform: translateY(-50%) rotate(45deg);
}

.board-window {
  padding: 1rem;
  border-radius: 28px;
  background: #fffdf9;
  border: 1px solid rgba(15, 34, 54, 0.08);
}

.window-bar {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 0.9rem;
}

.window-bar span {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 999px;
  background: rgba(15, 34, 54, 0.18);
}

.window-bar span:first-child { background: rgba(173, 63, 52, 0.5); }
.window-bar span:nth-child(2) { background: rgba(212, 170, 87, 0.62); }
.window-bar span:nth-child(3) { background: rgba(23, 58, 99, 0.45); }

.board-title-row,
.card-head,
.workflow-meta,
.footer-shell,
.footer-links {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.board-title-row strong,
.card-head strong,
.metric-card strong,
.model-step strong,
.benefit-card h3,
.trust-card strong,
.cta-points strong,
.quote-panel strong,
.name-card strong {
  color: var(--text);
}

.status-pill {
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: rgba(18, 38, 63, 0.08);
  color: var(--brand);
  font-size: 0.82rem;
  font-weight: 800;
}

.board-columns,
.execution-columns,
.problem-grid,
.feature-grid,
.benefit-grid,
.difference-grid,
.preview-grid,
.trust-grid,
.faq-list {
  display: grid;
  gap: 1.25rem;
}

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

.board-column {
  padding: 0.85rem;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(244, 239, 232, 0.92), rgba(255, 252, 247, 0.96));
  border: 1px solid rgba(15, 34, 54, 0.07);
}

.board-column h2,
.execution-lane h3 {
  margin: 0 0 0.7rem;
  max-width: none;
  font-size: 0.95rem;
  letter-spacing: 0;
  line-height: 1.2;
}

.task-card,
.execution-item {
  display: grid;
  gap: 0.18rem;
  padding: 0.75rem;
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(15, 34, 54, 0.06);
  box-shadow: 0 10px 18px rgba(16, 29, 43, 0.05);
}

.task-card strong,
.execution-item strong {
  font-size: 0.92rem;
}

.task-card span,
.execution-item span,
.execution-item small {
  color: var(--text-soft);
  font-size: 0.82rem;
  line-height: 1.45;
}

.task-card.active,
.execution-item.emphasis {
  border-color: rgba(23, 58, 99, 0.24);
  background: linear-gradient(180deg, rgba(23, 58, 99, 0.08), rgba(255, 255, 255, 1));
}

.task-card.faint {
  opacity: 0.72;
}

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

.metric-card,
.quote-panel,
.cta-card,
.impact-band {
  border-radius: var(--radius-lg);
  padding: 1.3rem;
}

.metric-card strong {
  display: block;
  font-size: 0.98rem;
  line-height: 1.55;
}

.content-section {
  padding: 4.25rem 0 6rem;
}

.section-heading {
  margin-bottom: 2.5rem;
}

.section-heading h2 {
  margin-bottom: 1rem;
}

.split-heading > p {
  max-width: 32rem;
  margin: 0;
  align-self: end;
}

.problem-grid,
.feature-grid,
.benefit-grid,
.difference-grid,
.preview-grid,
.trust-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.benefit-grid,
.difference-grid {
  margin-top: 1.75rem;
}

.info-card,
.benefit-card,
.preview-card,
.about-card,
.trust-card,
.name-card,
.faq-item {
  border-radius: var(--radius-lg);
  padding: 1.4rem;
}

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

.preview-card {
  border: 1px solid rgba(15, 34, 54, 0.08);
  background: #fffdfb;
  box-shadow: var(--shadow-lg);
  min-height: 14rem;
  display: grid;
  align-content: end;
}

.preview-card strong {
  color: var(--text);
  font-size: 1.05rem;
}

.preview-card p {
  margin: 0.45rem 0 0;
}

.about-card strong {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--text);
  font-size: 1.35rem;
  line-height: 1.2;
}

.about-card p {
  margin: 0;
}

.preview-label {
  display: inline-flex;
  margin-bottom: 0.8rem;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.impact-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.4rem;
}

.impact-band strong {
  display: block;
  font-size: 1.3rem;
  line-height: 1.3;
}

.system-model {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.4rem;
}

.model-step {
  position: relative;
  padding: 1.25rem 1.1rem;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 251, 245, 0.94), rgba(250, 246, 239, 0.9));
  border: 1px solid rgba(15, 34, 54, 0.08);
  box-shadow: 0 16px 28px rgba(16, 29, 43, 0.06);
}

.model-step:nth-child(1) { z-index: 5; }
.model-step:nth-child(2) { z-index: 4; }
.model-step:nth-child(3) { z-index: 3; }
.model-step:nth-child(4) { z-index: 2; }
.model-step:nth-child(5) { z-index: 1; }

.model-step:not(:last-child)::after {
  content: "";
  position: absolute;
  z-index: 3;
  top: 50%;
  right: -1rem;
  width: 2rem;
  height: 2px;
  background:
    linear-gradient(90deg, rgba(23, 58, 99, 0.22), rgba(23, 58, 99, 0.68));
  transform: translateY(-50%);
}

.model-step:not(:last-child)::before {
  content: "";
  position: absolute;
  z-index: 3;
  top: 50%;
  right: -1.05rem;
  width: 0.9rem;
  height: 0.9rem;
  border-top: 3px solid rgba(23, 58, 99, 0.68);
  border-right: 3px solid rgba(23, 58, 99, 0.68);
  transform: translateY(-50%) rotate(45deg);
}

.model-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  margin-bottom: 0.85rem;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, var(--accent), #8c2b24);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 900;
}

.model-step strong {
  display: block;
  margin-bottom: 0.45rem;
}

.workflow-list-card,
.execution-card {
  border-radius: var(--radius-xl);
  padding: 1.35rem;
}

.workflow-steps {
  display: grid;
  gap: 0.7rem;
  margin: 1.1rem 0 1.3rem;
  padding: 0;
  list-style: none;
  counter-reset: workflow;
}

.workflow-steps li {
  counter-increment: workflow;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  align-items: center;
  padding: 0.9rem 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(15, 34, 54, 0.07);
  color: var(--text);
  font-weight: 700;
}

.workflow-steps li::before {
  content: counter(workflow);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: rgba(23, 58, 99, 0.1);
  color: var(--brand);
  font-size: 0.84rem;
  font-weight: 900;
}

.workflow-meta {
  border-top: 1px solid rgba(15, 34, 54, 0.08);
  padding-top: 1rem;
}

.workflow-meta div {
  display: grid;
  gap: 0.18rem;
}

.workflow-meta span {
  color: var(--text-soft);
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

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

.execution-lane {
  padding: 1rem;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(250, 246, 239, 0.92), rgba(255, 252, 247, 0.98));
  border: 1px solid rgba(15, 34, 54, 0.07);
}

.execution-lane.current {
  background: linear-gradient(180deg, rgba(23, 58, 99, 0.08), rgba(255, 252, 247, 0.98));
  border-color: rgba(23, 58, 99, 0.15);
}

.comparison-table {
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.comparison-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1.4fr;
  gap: 1rem;
  padding: 1rem 1.25rem;
  border-top: 1px solid rgba(15, 34, 54, 0.08);
}

.comparison-row:first-child {
  border-top: 0;
}

.comparison-head {
  background: rgba(23, 58, 99, 0.06);
}

.comparison-head span {
  color: var(--brand);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.comparison-row strong,
.comparison-row span {
  color: var(--text);
}

.comparison-row-highlight {
  background: linear-gradient(135deg, rgba(23, 58, 99, 0.08), rgba(173, 63, 52, 0.06));
}

.founder-copy p {
  max-width: 36rem;
}

.quote-panel {
  margin-bottom: 1rem;
}

.quote-panel strong {
  display: block;
  margin-bottom: 0.55rem;
  font-size: 1.7rem;
  line-height: 1.15;
}

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

.trust-card {
  min-height: 6.6rem;
  display: grid;
  align-content: start;
  gap: 0.2rem;
}

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

.faq-item h3 {
  margin-bottom: 0.7rem;
}

.cta-section {
  padding: 1rem 0 5rem;
}

.cta-shell {
  padding: 2rem;
  border-radius: calc(var(--radius-xl) + 0.2rem);
  background:
    radial-gradient(circle at top right, rgba(212, 170, 87, 0.16), transparent 26%),
    linear-gradient(135deg, #0d223b, #173a63 60%, #18324f);
  color: #fff;
  box-shadow: 0 30px 80px rgba(16, 29, 43, 0.18);
}

.cta-shell .eyebrow,
.cta-shell h2,
.cta-shell p,
.cta-shell strong,
.cta-shell span {
  color: #fff;
}

.cta-shell .button-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.16);
}

.cta-card {
  border-radius: var(--radius-xl);
  padding: 1.4rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: none;
}

.cta-points {
  display: grid;
  gap: 1rem;
}

.cta-points div {
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.cta-points div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.site-footer {
  padding: 0 0 2.5rem;
}

.footer-shell {
  padding-top: 1.2rem;
  border-top: 1px solid rgba(15, 34, 54, 0.08);
}

.footer-brand {
  display: grid;
  gap: 0.6rem;
}

.footer-brand p,
.footer-shell > p {
  margin: 0;
}

.footer-links {
  gap: 1.1rem;
}

.footer-links a {
  color: var(--text-soft);
  font-weight: 700;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--text);
}

@media (max-width: 1080px) {
  .hero-grid,
  .founder-grid,
  .cta-shell,
  .workflow-showcase,
  .split-heading {
    grid-template-columns: 1fr;
  }

  .chaos-flow-card,
  .system-model,
  .board-columns,
  .execution-columns {
    grid-template-columns: 1fr;
  }

  .flow-arrow,
  .model-step::after {
    display: none;
  }

  .problem-grid,
  .feature-grid,
  .benefit-grid,
  .difference-grid,
  .preview-grid,
  .trust-grid,
  .faq-list,
  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .content-section {
    padding: 3.75rem 0 5.25rem;
  }

  .hero-media-frame {
    width: min(100%, 34rem);
  }
}

@media (max-width: 820px) {
  section[id],
  [id="top"] {
    scroll-margin-top: 4.75rem;
  }

  .nav-shell {
    padding: 0.85rem 0;
  }

  .brand-logo {
    height: 3rem;
    max-width: min(58vw, 220px);
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.12rem;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 0.65rem);
    right: 0;
    left: 0;
    display: none;
    padding: 0.8rem;
    background: rgba(250, 247, 241, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: 1.35rem;
    box-shadow: var(--shadow-md);
  }

  .site-nav.is-open {
    display: grid;
    gap: 0.35rem;
  }

  .site-nav a {
    width: 100%;
    text-align: left;
    background: rgba(255, 255, 255, 0.76);
  }

  .hero-section {
    padding: 3.4rem 0 2.8rem;
  }

  .content-section {
    padding: 3rem 0 4.25rem;
  }

  .hero-media-frame {
    width: 100%;
  }

  .hero-media {
    padding-top: 0;
  }

  .cta-section {
    padding: 0.8rem 0 3rem;
  }

  h1 {
    max-width: none;
    font-size: clamp(2.7rem, 10vw, 4rem);
  }

  h2 {
    max-width: none;
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .hero-lead,
  .section-heading > p:last-child,
  .split-heading > p {
    font-size: 1.06rem;
    line-height: 1.72;
  }

  .problem-grid,
  .feature-grid,
  .benefit-grid,
  .difference-grid,
  .preview-grid,
  .trust-grid,
  .faq-list,
  .hero-metrics,
  .workflow-meta,
  .footer-shell {
    grid-template-columns: 1fr;
  }

  .comparison-row {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .impact-band {
    display: grid;
  }
}

@media (max-width: 640px) {
  .section-shell,
  .nav-shell {
    width: min(calc(100% - 1.5rem), var(--shell));
  }

  .brand-logo {
    height: 2.7rem;
    max-width: min(62vw, 200px);
  }

  .site-nav {
    top: calc(100% + 0.55rem);
    padding: 0.7rem;
  }

  .hero-visual,
  .workflow-list-card,
  .execution-card,
  .quote-panel,
  .cta-card,
  .comparison-table,
  .impact-band,
  .faq-item,
  .info-card,
  .benefit-card,
  .metric-card,
  .trust-card,
  .name-card,
  .cta-shell {
    padding: 1.2rem;
  }

  .button,
  .site-nav a {
    width: 100%;
  }

  .hero-actions,
  .cta-actions {
    display: grid;
    gap: 0.75rem;
  }

  .problem-grid,
  .feature-grid,
  .benefit-grid,
  .difference-grid,
  .preview-grid,
  .trust-grid,
  .faq-list,
  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .chaos-cloud {
    min-height: 14rem;
  }

  .workflow-meta,
  .board-title-row,
  .card-head,
  .footer-shell,
  .footer-links {
    display: grid;
    justify-content: start;
  }
}