:root {
  --bg-main: #F8F5F0; /* Soft vintage linen paper background */
  --surface: #FFFFFF;
  --deep-ink: #1B2326; /* Deep editorial charcoal-ink */
  --data-blue: #234E65; /* Classic vintage marine blue */
  --signal-green: #355E4E; /* Deep vintage olive-green */
  --warm-sand: #E3DAC9; /* Aged book-page warm cream */
  --grid-line: #E4DDD3; /* Subtle paper-edge line color */
  --alert-amber: #B27027; /* Dark mustard/antique gold */
  --muted-text: #59656B; /* Soft slate gray */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "Georgia", "Times New Roman", serif; /* Elegant serif for vintage look */
  --font-mono: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  background-color: var(--bg-main);
  color: var(--deep-ink);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography & Links */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--deep-ink);
}

h1 {
  font-weight: 700;
}

h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--deep-ink);
}

p {
  color: var(--muted-text);
  margin-bottom: 1.5rem;
  font-size: 1.025rem;
}

a {
  color: var(--data-blue);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--deep-ink);
}

/* Grid Layout Foundations */
.grid-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.border-grid {
  border: 1px solid var(--grid-line);
  background-color: var(--surface);
  box-shadow: 0 4px 20px rgba(27, 35, 38, 0.03);
}

/* Header & Navigation */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(248, 245, 240, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--grid-line);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem; /* Slimmer header */
}

.brand-link {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.15rem; /* Scaled down for slim header */
  color: var(--deep-ink);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-symbol {
  width: 1rem; /* Scaled down for slim header */
  height: 1rem;
  background-color: var(--data-blue);
  display: inline-block;
  border-radius: 1px;
  transform: rotate(45deg);
}

.main-nav {
  display: flex;
  gap: 1.25rem; /* Slightly tighter gap for elegance */
  align-items: center;
}

.main-nav a {
  font-size: 0.8rem; /* Cleaner, text-button look */
  font-weight: 600;
  text-transform: uppercase; /* Elegant uppercase style */
  letter-spacing: 0.05em;
  color: var(--muted-text);
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--deep-ink);
  border-bottom-color: var(--data-blue);
}

.nav-cta {
  background-color: var(--deep-ink);
  color: var(--surface) !important;
  padding: 0.4rem 1rem !important; /* Slimmer button padding */
  border-radius: 1px;
  font-size: 0.75rem !important;
  font-weight: 700 !important;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid var(--deep-ink) !important;
}

.nav-cta:hover {
  background-color: transparent;
  color: var(--deep-ink) !important;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--deep-ink);
  cursor: pointer;
}

/* Hero Section */
.hero-section {
  padding: 6.5rem 0 5.5rem;
  border-bottom: 1px solid var(--grid-line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: 3.2rem;
  margin-bottom: 1.75rem;
  line-height: 1.15;
}

.hero-subtitle {
  font-size: 1.2rem;
  line-height: 1.75;
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-cta-group {
  display: flex;
  gap: 1rem;
}

.btn-primary {
  background-color: var(--data-blue);
  color: var(--surface);
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 1px;
  display: inline-block;
  border: 1px solid var(--data-blue);
}

.btn-primary:hover {
  background-color: var(--deep-ink);
  border-color: var(--deep-ink);
  color: var(--surface);
}

.btn-secondary {
  border: 1px solid var(--grid-line);
  background-color: var(--surface);
  color: var(--deep-ink);
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 1px;
  display: inline-block;
}

.btn-secondary:hover {
  background-color: var(--bg-main);
  border-color: var(--muted-text);
}

/* Interactive Service Finder Module */
.service-finder-section {
  padding: 6rem 0;
  border-bottom: 1px solid var(--grid-line);
}

.finder-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.finder-header h2 {
  font-size: 2.25rem;
  margin-top: 0.5rem;
}

.finder-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.finder-tab {
  background-color: var(--surface);
  border: 1px solid var(--grid-line);
  padding: 1.75rem;
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
}

.finder-tab.active {
  border-color: var(--data-blue);
  background-color: #FAF8F4;
  box-shadow: inset 4px 0 0 var(--data-blue);
}

.finder-tab:hover {
  border-color: var(--data-blue);
  background-color: #FAF8F4;
}

.finder-tab-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--deep-ink);
  margin-bottom: 0.75rem;
}

.finder-tab-desc {
  font-size: 0.85rem;
  color: var(--muted-text);
  line-height: 1.5;
}

.finder-content-display {
  margin-top: 2.5rem;
  background-color: var(--surface);
  border: 1px solid var(--grid-line);
  padding: 3.5rem;
  box-shadow: 0 4px 30px rgba(27, 35, 38, 0.02);
}

.finder-panel {
  display: none;
}

.finder-panel.active {
  display: block;
}

.finder-panel h3 {
  font-size: 1.8rem;
  margin-bottom: 1.25rem;
  color: var(--data-blue);
}

.finder-panel p {
  font-size: 1.05rem;
  margin-bottom: 2rem;
  max-width: 800px;
}

/* Data Maturity Map */
.maturity-section {
  padding: 6rem 0;
  border-bottom: 1px solid var(--grid-line);
}

.maturity-flow {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  margin-top: 4rem;
}

.maturity-step {
  background-color: var(--surface);
  border: 1px solid var(--grid-line);
  padding: 1.75rem;
  position: relative;
  transition: var(--transition);
}

.maturity-step:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(27, 35, 38, 0.04);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--data-blue);
  border-bottom: 1px solid var(--grid-line);
  padding-bottom: 0.75rem;
  margin-bottom: 1.25rem;
  display: block;
}

.step-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

.step-desc {
  font-size: 0.825rem;
  line-height: 1.6;
}

/* Content Layout Blocks */
.content-section {
  padding: 6.5rem 0;
  border-bottom: 1px solid var(--grid-line);
}

.split-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
}

.block-title-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--data-blue);
  margin-bottom: 1rem;
  display: block;
}

.block-checklist {
  list-style: none;
  margin: 2rem 0;
}

.block-checklist li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 1rem;
  font-size: 1rem;
}

.block-checklist li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--data-blue);
  font-size: 0.8rem;
}

.warning-callout {
  background-color: #FAF4E8;
  border-left: 3px solid var(--alert-amber);
  padding: 1.5rem 2rem;
  margin: 2rem 0;
}

.warning-callout p {
  color: #7A531C;
  font-size: 0.95rem;
  margin: 0;
}

/* Card Grids */
.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-top: 3.5rem;
}

.feature-card {
  background-color: var(--surface);
  border: 1px solid var(--grid-line);
  padding: 2.5rem;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(27, 35, 38, 0.04);
}

.feature-card h3 {
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
}

/* Data & Workflow Graphics (CSS/HTML Based) */
.mock-dashboard {
  background: #192124; /* Blueprint charcoal black */
  border: 1px solid var(--grid-line);
  border-radius: 1px;
  padding: 2rem;
  color: #ECEAE6;
  font-family: var(--font-mono);
  box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.dashboard-header {
  border-bottom: 1px solid #2F393D;
  padding-bottom: 1.25rem;
  margin-bottom: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}

.dot-indicator {
  display: inline-block;
  width: 7px;
  height: 7px;
  background-color: #3AA982;
  border-radius: 50%;
  margin-right: 0.5rem;
}

.chart-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.chart-card {
  background: #232C30;
  padding: 1.25rem;
  border: 1px solid #2F393D;
  border-radius: 1px;
}

.chart-val {
  font-size: 1.65rem;
  font-weight: bold;
  color: #3AA982;
  font-family: var(--font-sans);
}

.chart-label {
  font-size: 0.7rem;
  color: #A3AFB4;
  letter-spacing: 0.05em;
}

.line-chart-visual {
  height: 120px;
  border-bottom: 1px solid #2F393D;
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 0 0.5rem;
}

.bar {
  background-color: var(--data-blue);
  width: 12%;
  border-radius: 1px 1px 0 0;
  opacity: 0.85;
}

/* Contact & Forms */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 5rem;
}

.styled-form {
  display: grid;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.form-group input,
.form-group select,
.form-group textarea {
  border: 1px solid var(--grid-line);
  background-color: var(--surface);
  padding: 0.85rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  border-radius: 1px;
  outline: none;
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--data-blue);
  box-shadow: 0 0 0 3px rgba(35, 78, 101, 0.08);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--surface);
  border-top: 2px solid var(--grid-line);
  padding: 2rem 0;
  z-index: 1000;
  box-shadow: 0 -8px 30px rgba(0,0,0,0.04);
  display: none;
}

.cookie-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 3rem;
}

.cookie-text {
  font-size: 0.9rem;
  color: var(--muted-text);
  max-width: 750px;
}

.cookie-actions {
  display: flex;
  gap: 1rem;
}

.cookie-btn {
  font-size: 0.85rem;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
  border-radius: 1px;
  font-weight: 600;
  transition: var(--transition);
}

.cookie-btn-primary {
  background-color: var(--deep-ink);
  color: var(--surface);
  border: 1px solid var(--deep-ink);
}

.cookie-btn-primary:hover {
  background-color: transparent;
  color: var(--deep-ink);
}

.cookie-btn-secondary {
  background-color: var(--bg-main);
  border: 1px solid var(--grid-line);
  color: var(--deep-ink);
}

.cookie-btn-secondary:hover {
  border-color: var(--deep-ink);
}

/* Footer style */
footer.site-footer {
  background-color: var(--deep-ink);
  color: #BAC7CE;
  padding: 5.5rem 0 3rem;
  margin-top: 6rem;
  border-top: 1px solid var(--grid-line);
}

footer.site-footer h3 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--surface);
  margin-bottom: 1rem;
}

footer.site-footer h4 {
  color: var(--surface);
}

footer.site-footer p {
  color: #A3B1B8;
  font-size: 0.95rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.22fr 0.78fr 1fr;
  gap: 4rem;
  border-bottom: 1px solid #2E3A40;
  padding-bottom: 4.5rem;
  margin-bottom: 3rem;
}

.footer-links-group h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.85rem;
}

.footer-links a {
  color: #BAC7CE;
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--surface);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #A3B1B8;
}

/* Knowledge Base Styling */
.kb-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.25rem;
  margin-top: 3.5rem;
}

.kb-card {
  background-color: var(--surface);
  border: 1px solid var(--grid-line);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.kb-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(27, 35, 38, 0.04);
}

.kb-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--data-blue);
  margin-bottom: 1rem;
  display: block;
}

.kb-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin-bottom: 1rem;
  color: var(--deep-ink);
  line-height: 1.3;
}

.kb-summary {
  font-size: 0.9rem;
  color: var(--muted-text);
  margin-bottom: 1.75rem;
  flex-grow: 1;
}

.kb-link {
  font-weight: 600;
  font-size: 0.88rem;
  border-top: 1px solid var(--grid-line);
  padding-top: 1rem;
  margin-top: auto;
}

/* Responsive Breakpoints */
@media (max-width: 1200px) {
  .hero-grid {
    gap: 3rem;
  }
}

@media (max-width: 992px) {
  .finder-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .maturity-flow {
    grid-template-columns: 1fr;
  }
  .maturity-step {
    padding-left: 3.5rem;
  }
  .maturity-step::before {
    content: "↓";
    position: absolute;
    left: 1.5rem;
    top: 1.75rem;
    font-size: 1.3rem;
    color: var(--data-blue);
  }
  .kb-grid, .card-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 3.5rem; /* Aligns perfectly with updated slimmer header height */
    left: 0;
    right: 0;
    background-color: var(--surface);
    border-bottom: 1px solid var(--grid-line);
    flex-direction: column;
    padding: 2rem;
    gap: 1.25rem;
    box-shadow: 0 8px 16px rgba(0,0,0,0.05);
  }
  .main-nav.active {
    display: flex;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .split-block {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 480px) {
  .finder-grid {
    grid-template-columns: 1fr;
  }
  .kb-grid, .card-grid-3 {
    grid-template-columns: 1fr;
  }
}