:root {
  --bg-dark: #121417;
  --bg-card: #1C2026;
  --bg-light: #F4F5F7;
  --text-main: #1A1D20;
  --text-muted: #64748B;
  --text-light: #F8FAFC;
  --accent-green: #10B981;
  --accent-green-hover: #059669;
  --border-color: #333A45;
  --border-light: #E2E8F0;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  color: var(--text-main);
  background-color: #FFFFFF;
  line-height: 1.5;
}

/* Typography Helpers */
h1, h2, h3 {
  font-weight: 700;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* Layout Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

.btn-primary {
  background-color: var(--accent-green);
  color: #FFFFFF;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  border-radius: 4px;
  text-decoration: none;
  display: inline-block;
  transition: background-color 0.2s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background-color: var(--accent-green-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-light);
  border: 1px solid var(--border-color);
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  border-radius: 4px;
  text-decoration: none;
  display: inline-block;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--text-light);
}

/* Header / Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-dark);
  border-bottom: 1px solid var(--border-color);
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.brand-logo {
  color: var(--text-light);
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.brand-logo span {
  color: var(--accent-green);
}

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

.nav-links a {
  color: #94A3B8;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text-light);
}

/* Hero Section */
.hero {
  position: relative;
  background: linear-gradient(rgba(18, 20, 23, 0.85), rgba(18, 20, 23, 0.95)), url('https://images.unsplash.com/photo-1509391365360-2e959784a276?auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
  color: var(--text-light);
  padding: 8rem 0 6rem 0;
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero p.subheadline {
  font-size: 1.2rem;
  color: #94A3B8;
  margin-bottom: 2rem;
}

.hero-cta-group {
  display: flex;
  gap: 1rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.location-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--accent-green);
  background: rgba(16, 185, 129, 0.1);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Services Cards */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.service-card {
  border: 1px solid var(--border-light);
  padding: 2rem;
  border-radius: 6px;
  background: #FFFFFF;
}

.service-card h3 {
  margin: 1rem 0 0.5rem 0;
  font-size: 1.25rem;
}

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

.service-card ul li {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  position: relative;
  padding-left: 1.25rem;
}

.service-card ul li::before {
  content: "•";
  color: var(--accent-green);
  font-weight: bold;
  position: absolute;
  left: 0;
}

/* Dark Theme Sections */
.bg-dark-section {
  background-color: var(--bg-dark);
  color: var(--text-light);
}

.bg-dark-section p {
  color: #94A3B8;
}

/* Timeline */
.timeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.timeline-step {
  border-left: 2px solid var(--accent-green);
  padding-left: 1.25rem;
}

.timeline-step .step-num {
  color: var(--accent-green);
  font-weight: 800;
  font-size: 0.875rem;
}

.timeline-step h4 {
  margin: 0.25rem 0;
  color: var(--text-light);
}

/* Tables & Grids */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.project-card {
  background: var(--bg-light);
  padding: 1.5rem;
  border-left: 3px solid var(--bg-dark);
}

.project-card h4 {
  margin-bottom: 0.5rem;
  font-size: 1.1rem;
}

/* Contact Form */
.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

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

.form-group.full-width {
  grid-column: span 2;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-main);
}

.form-group input, 
.form-group select, 
.form-group textarea {
  padding: 0.75rem;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.95rem;
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
  outline: 2px solid var(--accent-green);
}

/* Responsive Styles */
@media (max-width: 900px) {
  .hero h1 { font-size: 2.25rem; }
  .grid-2, .project-grid { grid-template-columns: 1fr; }
  .contact-form { grid-template-columns: 1fr; }
  .form-group.full-width { grid-column: span 1; }
  .nav-links { display: none; } /* Mobile menu toggle handles this */
}
</style>