:root {
  --color-ink: #0c1222;
  --color-ink-muted: #465668;
  --color-surface: #f5f3ef;
  --color-surface-alt: #e8e4dc;
  --color-depth: #0b4f5c;
  --color-depth-hover: #09424d;
  --color-signal: #c45c26;
  --color-signal-hover: #a74d1f;
  --color-white: #ffffff;
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body: "DM Sans", system-ui, sans-serif;
  --shadow-soft: 0 4px 24px rgba(12, 18, 34, 0.08);
  --radius-sm: 6px;
  --radius-lg: 12px;
  --space-section: clamp(3.5rem, 8vw, 5.5rem);
  --max-width: 1120px;
}

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

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-surface);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-depth);
  color: var(--color-white);
  padding: 0.75rem 1rem;
  z-index: 100;
  border-radius: var(--radius-sm);
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.narrow {
  max-width: 720px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 243, 239, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(12, 18, 34, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
  flex-wrap: wrap;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.04em;
  color: var(--color-depth);
  text-decoration: none;
}

.logo:hover {
  color: var(--color-signal);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  align-items: center;
}

.nav a {
  color: var(--color-ink-muted);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
}

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

.nav-cta {
  background: var(--color-depth);
  color: var(--color-white) !important;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
}

.nav-cta:hover {
  background: var(--color-depth-hover);
  color: var(--color-white) !important;
}

.hero {
  position: relative;
  display: grid;
  gap: 2rem;
  padding-block: var(--space-section);
  padding-inline: 0;
  overflow: hidden;
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.hero-visual {
  position: relative;
  min-height: 280px;
  margin-inline: -1rem;
}

@media (min-width: 900px) {
  .hero-visual {
    margin-inline: 0;
    min-height: 400px;
  }
}

.hero-img {
  position: absolute;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.hero-img-a {
  width: 55%;
  max-width: 280px;
  left: 0;
  top: 0;
  z-index: 2;
  aspect-ratio: 726 / 560;
}

.hero-img-b {
  width: 62%;
  max-width: 340px;
  right: 0;
  bottom: 0;
  z-index: 1;
  aspect-ratio: 960 / 828;
}

.hero-content {
  position: relative;
  z-index: 3;
}

.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-depth);
  margin: 0 0 0.75rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 600;
  line-height: 1.12;
  margin: 0 0 1rem;
  color: var(--color-ink);
}

.lead {
  font-size: 1.125rem;
  color: var(--color-ink-muted);
  margin: 0 0 1.5rem;
  max-width: 38rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.35rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn:focus-visible {
  outline: 2px solid var(--color-depth);
  outline-offset: 3px;
}

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

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

.btn-ghost {
  background: transparent;
  color: var(--color-depth);
  border: 2px solid var(--color-depth);
}

.btn-ghost:hover {
  background: rgba(11, 79, 92, 0.08);
}

.hero-note {
  font-size: 0.875rem;
  color: var(--color-ink-muted);
  margin: 0;
}

.section {
  padding-block: var(--space-section);
}

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

.section-accent {
  background: linear-gradient(135deg, var(--color-depth) 0%, #0a3d47 100%);
  color: var(--color-surface);
}

.section-accent h2 {
  color: var(--color-surface);
}

.section-accent .benefits {
  color: rgba(245, 243, 239, 0.95);
}

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.125rem);
  font-weight: 600;
  margin: 0 0 1rem;
}

.section-intro {
  color: var(--color-ink-muted);
  max-width: 42rem;
  margin: 0 0 2rem;
}

.pain-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .pain-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.pain-grid li {
  background: var(--color-white);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  font-weight: 500;
  position: relative;
  padding-left: 2.25rem;
}

.pain-grid li::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 1.15rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-signal);
}

.split {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 900px) {
  .split {
    grid-template-columns: 1fr minmax(260px, 320px);
    align-items: start;
  }
}

.checklist {
  padding-left: 1.25rem;
  margin: 1.25rem 0;
}

.checklist li {
  margin-bottom: 0.5rem;
}

.pull-quote {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--color-depth);
  border-left: 4px solid var(--color-signal);
  margin: 1.75rem 0 0;
  padding-left: 1.25rem;
}

.aside-card {
  background: var(--color-white);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  align-self: start;
}

.aside-card h3 {
  margin: 0 0 1rem;
  font-size: 1.05rem;
}

.aside-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--color-ink-muted);
}

.aside-card li {
  margin-bottom: 0.45rem;
}

.layers-list {
  margin: 0 0 2rem;
  padding-left: 1.25rem;
  max-width: 42rem;
}

.layers-list li {
  margin-bottom: 0.65rem;
}

.layer-code {
  font-weight: 700;
  color: var(--color-depth);
  font-size: 0.95em;
}

.diagram {
  margin: 0;
  background: var(--color-white);
  padding: 1rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.diagram img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-sm);
}

.diagram figcaption {
  font-size: 0.8125rem;
  color: var(--color-ink-muted);
  margin-top: 0.75rem;
}

.audience-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 720px) {
  .audience-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.card {
  background: var(--color-white);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--color-depth);
}

.card p {
  margin: 0;
  color: var(--color-ink-muted);
  font-size: 0.95rem;
}

.benefits {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 1.1rem;
}

.benefits li {
  padding: 0.65rem 0;
  padding-left: 2rem;
  position: relative;
  border-bottom: 1px solid rgba(245, 243, 239, 0.2);
}

.benefits li:last-child {
  border-bottom: none;
}

.benefits li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #7dd3c0;
  font-weight: 700;
}

.section-contact {
  background: var(--color-ink);
  color: var(--color-surface);
}

.section-contact h2,
.section-contact p,
.section-contact .eyebrow {
  color: var(--color-surface);
}

.section-contact .eyebrow {
  opacity: 0.85;
}

.section-contact .lead,
.section-contact p {
  opacity: 0.92;
}

.contact-split {
  align-items: start;
}

@media (min-width: 900px) {
  .contact-split {
    grid-template-columns: 1.2fr 0.9fr;
  }
}

.section-contact .btn-primary {
  background: var(--color-signal);
}

.section-contact .btn-ghost {
  border-color: var(--color-surface);
  color: var(--color-surface);
}

.section-contact .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

.address-card {
  font-style: normal;
  background: rgba(255, 255, 255, 0.06);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.95rem;
  line-height: 1.6;
}

.site-footer {
  padding: 2rem 0;
  background: #070a10;
  color: rgba(245, 243, 239, 0.65);
  font-size: 0.875rem;
}

.footer-inner {
  text-align: center;
}

.footer-inner p {
  margin: 0.35rem 0;
}

.footer-small {
  font-size: 0.8125rem;
  opacity: 0.85;
}

@media (max-width: 640px) {
  .nav {
    width: 100%;
    justify-content: flex-start;
  }
}