:root {
  --primary-color: #0d1b2a; /* Dark blue/charcoal */
  --secondary-color: #f8f9fa; /* Light grey */
  --accent-color: #2a9d8f; /* Subtle green (retail/finance signal) */
  --highlight-color: #e9c46a; /* Muted gold */
  --text-dark: #212529;
  --text-light: #f8f9fa;
  --text-muted: #6c757d;
  --white: #ffffff;
  --bg-color: #ffffff;
  --bg-dark: #f1f3f5;
  
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-body: 'Roboto', -apple-system, BlinkMacSystemFont, "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;

  --spacing-unit: 1rem;
  --border-radius: 4px; /* minimal, sharp edges with soft rounding */
  --transition-speed: 0.3s;
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background-color: var(--bg-color);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: calc(var(--spacing-unit) * 1.5);
  color: var(--primary-color);
}

h1 { font-size: 3rem; letter-spacing: -0.5px; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.75rem; }
p { margin-bottom: var(--spacing-unit); }

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}
a:hover { color: var(--highlight-color); }

/* Globals */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 5%;
}

.section {
  padding: 6rem 0;
}
.section-dark {
  background-color: var(--primary-color);
  color: var(--text-light);
}
.section-dark h1, .section-dark h2, .section-dark h3 {
  color: var(--text-light);
}

.section-grey {
  background-color: var(--bg-dark);
}

/* Shared Components & Utilities */
.section-label {
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 2px;
  color: var(--accent-color);
  margin-bottom: 1rem;
}

.split-layout {
  display: flex;
  align-items: center;
  gap: 4rem;
}

.split-layout.reverse {
  flex-direction: row-reverse;
}

.split-image {
  flex: 1;
  position: relative;
}

.split-image img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.split-content {
  flex: 1;
}

.split-content h2, .split-content h3 {
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
}

.split-content p {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.8;
}

.text-center { text-align: center; }
.mb-4 { margin-bottom: 3rem; }
.max-width-auto { max-width: 700px; margin-left: auto; margin-right: auto; color: #adb5bd;}

/* Page Headers */
.page-header {
  padding-top: max(15vh, 120px);
  padding-bottom: 3rem;
  text-align: center;
}
.page-header h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  letter-spacing: -1px;
}
.header-subtitle {
  font-size: 1.2rem;
  color: #adb5bd;
  max-width: 700px;
  margin: 0 auto;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.navbar .logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--primary-color);
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-dark);
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

.hamburger {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}
.hamburger span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--primary-color);
  transition: all 0.3s ease;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 2px solid transparent;
  background-color: var(--primary-color);
  color: var(--white);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-speed);
}
.btn:hover {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}
.btn-outline {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}
.btn-outline:hover {
  background-color: var(--primary-color);
  color: var(--white);
}

/* Footer */
footer {
  background-color: var(--primary-color);
  color: var(--text-light);
  padding: 4rem 5% 2rem;
}
.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-col h4 {
  color: var(--white);
  font-size: 1.2rem;
  margin-bottom: 1rem;
}
.footer-col p, .footer-col a {
  color: #adb5bd;
  font-size: 0.9rem;
}
.footer-col a:hover {
  color: var(--accent-color);
}
.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.85rem;
  color: #adb5bd;
}

/* Animations */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 992px) {
  .split-layout, .split-layout.reverse { flex-direction: column; gap: 2rem; }
  .split-image { width: 100%; }
  .page-header h1 { font-size: 2.5rem; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: white;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  }
  .nav-links.active {
    display: flex;
  }
  .hamburger {
    display: flex;
  }
  .hamburger.is-active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .hamburger.is-active span:nth-child(2) { opacity: 0; }
  .hamburger.is-active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
  h1 { font-size: 2.25rem; }
  h2 { font-size: 1.75rem; }
}