@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Merriweather:ital,wght@0,300;0,400;0,700;1,300&display=swap');

:root {
  --bg-primary: #FAFAFA;
  --surface: #FFFFFF;
  --text-deep: #111111;
  --brand-primary: #000000;
  --brand-secondary: #444444;
  --soft-copper: #666666;
  --grid-silver: #E0E0E0;
  --insight-amber: #555555;
  --muted-text: #555555;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-serif: 'Merriweather', "Georgia", serif;
  --transition: all 0.3s ease;
  --container-width: 1200px;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-deep);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--text-deep);
  line-height: 1.3;
  margin-bottom: 1rem;
}

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

a {
  color: var(--brand-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--brand-secondary);
}

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

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Redesigned Header */
.main-header {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

.main-header .header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 55px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-deep);
  text-decoration: none;
  font-family: var(--font-sans);
}

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

.brand-icon {
  color: var(--brand-primary);
  transition: transform 0.3s ease;
}

.brand-logo:hover .brand-icon {
  transform: scale(1.1);
  color: var(--brand-secondary);
}

.brand-text {
  font-size: 1rem;
  letter-spacing: 0.5px;
}

.brand-text strong {
  font-weight: 700;
}

.nav-wrapper {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.primary-nav .nav-links {
  display: flex;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.primary-nav .nav-links a {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted-text);
  text-decoration: none;
  padding: 0.25rem 0;
  position: relative;
  transition: color 0.3s ease;
}

.primary-nav .nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--brand-primary);
  transition: width 0.3s ease;
}

.primary-nav .nav-links a:hover,
.primary-nav .nav-links a.active {
  color: var(--text-deep);
}

.primary-nav .nav-links a:hover::after,
.primary-nav .nav-links a.active::after {
  width: 100%;
}

.btn-header {
  padding: 0.4rem 0.8rem;
  font-size: 0.75rem;
  border-radius: 4px;
}

/* Hamburger */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  width: 40px;
  height: 40px;
  position: relative;
  z-index: 1001;
}

.hamburger, .hamburger::before, .hamburger::after {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-deep);
  transition: all 0.3s ease-in-out;
  border-radius: 2px;
}

.hamburger::before, .hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before {
  transform: translateY(-6px);
}

.hamburger::after {
  transform: translateY(6px);
}

.menu-toggle.is-active .hamburger {
  background-color: transparent;
}

.menu-toggle.is-active .hamburger::before {
  transform: translateY(0) rotate(45deg);
}

.menu-toggle.is-active .hamburger::after {
  transform: translateY(0) rotate(-45deg);
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--brand-primary);
  color: var(--surface);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid var(--brand-primary);
  border-radius: 6px;
  cursor: pointer;
  text-align: center;
  transition: var(--transition);
}

.btn:hover {
  background-color: var(--brand-secondary);
  border-color: var(--brand-secondary);
  color: var(--surface);
}

.btn-secondary {
  background-color: transparent;
  color: var(--surface);
  border-color: var(--surface);
}

.btn-secondary:hover {
  background-color: var(--surface);
  color: var(--text-deep);
}

/* Hero Section */
.hero {
  padding: 8rem 0;
  position: relative;
  background-image: linear-gradient(rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.75)), url('images/hero-home-monochrome-office.jpg');
  background-size: cover;
  background-position: center;
}

.hero-content {
  max-width: 700px;
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  color: var(--surface);
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

/* Sections */
section {
  padding: 6rem 0;
}

.section-header {
  margin-bottom: 3.5rem;
  max-width: 700px;
}

/* Challenge Selector */
.challenge-selector {
  background: var(--surface);
  border: 1px solid var(--grid-silver);
  border-radius: 12px;
  display: flex;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0,0,0,0.02);
}

.challenge-tabs {
  width: 35%;
  border-right: 1px solid var(--grid-silver);
  list-style: none;
  background: var(--bg-primary);
}

.challenge-tab {
  padding: 1.5rem;
  border-bottom: 1px solid var(--grid-silver);
  cursor: pointer;
  transition: var(--transition);
  font-weight: 600;
  color: var(--muted-text);
}

.challenge-tab:last-child {
  border-bottom: none;
}

.challenge-tab:hover {
  background-color: var(--surface);
  color: var(--brand-primary);
}

.challenge-tab.active {
  background-color: var(--surface);
  color: var(--brand-primary);
  border-left: 4px solid var(--brand-primary);
}

.challenge-content-area {
  padding: 3rem;
  width: 65%;
}

.challenge-pane {
  display: none;
  animation: fadeIn 0.4s ease;
}

.challenge-pane.active {
  display: block;
}

.read-more {
  display: inline-block;
  margin-top: 1rem;
  font-weight: 600;
}

/* Maturity Model */
.maturity-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
}

.maturity-stage {
  background: var(--surface);
  border: 1px solid var(--grid-silver);
  border-radius: 8px;
  padding: 1.5rem;
  position: relative;
  box-shadow: 0 4px 6px rgba(0,0,0,0.02);
  transition: var(--transition);
}

.maturity-stage:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.maturity-stage::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--soft-copper);
  border-radius: 8px 8px 0 0;
}

.stage-num {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--brand-primary);
  font-weight: 700;
  margin-bottom: 0.5rem;
  display: block;
}

/* Cards Grid */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.service-card, .article-card {
  background: var(--surface);
  border: 1px solid var(--grid-silver);
  border-radius: 8px;
  padding: 2.5rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: 0 4px 6px rgba(0,0,0,0.02);
}

.service-card:hover, .article-card:hover {
  border-color: var(--brand-secondary);
  box-shadow: 0 10px 25px rgba(0,0,0,0.06);
  transform: translateY(-3px);
}

.service-card h3 {
  color: var(--brand-primary);
}

.service-card ul {
  list-style: none;
  margin-top: 1rem;
  flex-grow: 1;
}

.service-card ul li {
  margin-bottom: 0.75rem;
  color: var(--muted-text);
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.95rem;
}

.service-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--brand-secondary);
  font-weight: bold;
}

/* Analytics Architecture */
.architecture-diagram {
  border: 1px solid var(--grid-silver);
  border-radius: 8px;
  background: var(--surface);
  padding: 2rem;
  margin-top: 2rem;
  box-shadow: 0 4px 10px rgba(0,0,0,0.03);
}

.arch-row {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.arch-box {
  flex: 1;
  border: 1px dashed var(--brand-secondary);
  border-radius: 6px;
  padding: 1.5rem;
  text-align: center;
  background: var(--bg-primary);
  font-size: 0.9rem;
  color: var(--brand-primary);
}

.arch-header {
  font-weight: 700;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--grid-silver);
  padding-bottom: 0.5rem;
  font-family: var(--font-serif);
}

/* Highlight Boxes */
.highlight-box {
  background: var(--bg-primary);
  padding: 2rem;
  border-left: 4px solid var(--insight-amber);
  border-radius: 0 8px 8px 0;
}

.highlight-box.dark {
  background: var(--text-deep);
  border-left-color: var(--brand-secondary);
}

/* Forms */
.form-container {
  background: var(--surface);
  padding: 2.5rem;
  border: 1px solid var(--grid-silver);
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.03);
}

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-deep);
  font-size: 0.95rem;
}

input, select, textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--grid-silver);
  border-radius: 6px;
  background: var(--bg-primary);
  font-family: var(--font-sans);
  color: var(--text-deep);
  transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--brand-primary);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

/* Content Pages */
.page-header {
  color: var(--surface);
  padding: 6rem 0;
  position: relative;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.2);
  z-index: 1;
}

.page-header .container {
  position: relative;
  z-index: 2;
}

.page-header h1 {
  color: var(--surface);
  font-size: 3rem;
}

.page-header p {
  color: var(--grid-silver);
  font-size: 1.15rem;
  max-width: 700px;
}

.content-body {
  padding: 5rem 0;
}

.content-body h2 {
  margin-top: 3rem;
  color: var(--brand-primary);
}

/* Knowledge Centre */
.article-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.article-card p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--text-deep);
  color: var(--surface);
  padding: 1.5rem 0;
  z-index: 2000;
  display: none;
  box-shadow: 0 -4px 10px rgba(0,0,0,0.1);
}

.cookie-banner.active {
  display: block;
}

.cookie-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.cookie-text {
  flex: 1;
  min-width: 300px;
}

.cookie-text p {
  color: var(--grid-silver);
  margin-bottom: 0;
  font-size: 0.9rem;
}

.cookie-buttons {
  display: flex;
  gap: 0.75rem;
}

.cookie-btn {
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  border: 1px solid var(--grid-silver);
  border-radius: 6px;
  background: transparent;
  color: var(--surface);
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.cookie-btn.primary {
  background: var(--brand-secondary);
  border-color: var(--brand-secondary);
}

.cookie-btn:hover {
  background: var(--surface);
  color: var(--text-deep);
}

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

/* Footer */
footer {
  background: var(--text-deep);
  color: var(--grid-silver);
  padding: 5rem 0 2rem;
  border-top: 4px solid var(--brand-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer-brand-info p {
  color: #94A3B8;
  font-size: 0.95rem;
}

.footer-logo {
  color: var(--surface);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  display: block;
  font-family: var(--font-sans);
}

.footer-contact {
  margin-top: 1.5rem;
}

.footer-contact p {
  margin-bottom: 0.5rem;
  color: #94A3B8;
}

.footer-contact strong {
  color: var(--grid-silver);
}

.footer-contact a {
  color: var(--grid-silver);
}

.footer-contact a:hover {
  text-decoration: underline;
}

footer h4 {
  color: var(--surface);
  font-family: var(--font-sans);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

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

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #94A3B8;
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--surface);
  padding-left: 5px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #888888;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1200px) {
  .maturity-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 992px) {
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .nav-wrapper {
    position: fixed;
    top: 55px;
    left: 0;
    width: 100%;
    height: calc(100vh - 55px);
    background-color: var(--surface);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    padding: 2rem;
    clip-path: circle(0 at calc(100% - 40px) -40px);
    transition: clip-path 0.5s ease-in-out;
    opacity: 0;
    pointer-events: none;
  }
  
  .nav-wrapper.active {
    clip-path: circle(150% at calc(100% - 40px) -40px);
    opacity: 1;
    pointer-events: all;
  }

  .primary-nav .nav-links {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
  }
  
  .primary-nav .nav-links a {
    font-size: 1.25rem;
  }
  
  .header-actions {
    margin-top: 1rem;
  }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 2.5rem; }
  .hero-actions { flex-direction: column; }
  .challenge-selector { flex-direction: column; }
  .challenge-tabs { width: 100%; border-right: none; border-bottom: 1px solid var(--grid-silver); display: flex; overflow-x: auto; }
  .challenge-tab { white-space: nowrap; border-left: none !important; border-bottom: 4px solid transparent; }
  .challenge-tab.active { border-bottom: 4px solid var(--brand-primary); }
  .challenge-content-area { width: 100%; padding: 2rem; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .maturity-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .arch-row { flex-direction: column; }
  .cookie-content { flex-direction: column; align-items: flex-start; }
  .page-header h1 { font-size: 2.2rem; }
}

@media (max-width: 480px) {
  .hero { padding: 4rem 0; }
  .hero-content { padding: 0; }
  section { padding: 4rem 0; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
  .cookie-buttons { flex-direction: column; width: 100%; }
  .cookie-btn { width: 100%; }
}