:root {
  /* Design Tokens - Midnight Blue & Platinum */
  --color-primary: #0a192f;
  /* Midnight Blue */
  --color-secondary: #8892b0;
  /* Light Slate */
  --color-accent: #d4af37;
  /* Muted Gold */
  --color-background: #ffffff;
  /* White */
  --color-surface: #f8f9fa;
  /* Platinum/Off-White */
  --color-text-main: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;

  --font-heading: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;

  --spacing-sm: 0.5rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  --spacing-xxl: 8rem;

  --container-width: 1200px;
  --header-height: 80px;
}

/* Reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-background);
  color: var(--color-text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2rem;
  font-weight: 400;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
  max-width: 65ch;
  color: var(--color-text-muted);
  margin-left: auto;
  margin-right: auto;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-accent);
}

/* Utilities */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.text-gold {
  color: var(--color-accent);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

/* Components */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  border: 1px solid var(--color-primary);
  background: transparent;
  color: var(--color-primary);
  font-family: var(--font-body);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
}

.btn:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* Layout */
header {
  position: fixed;
  top: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

header .container {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-primary);
  font-weight: 600;
}

nav ul {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
}

nav a {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
  color: var(--color-secondary);
}

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

/* Hero Section */
.hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: #fff;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(rgba(10, 25, 47, 0.4), rgba(10, 25, 47, 0.6)), url('../images/skyline.png');
  background-size: cover;
  background-position: center;
  z-index: -1;
}

.hero-content {
  text-align: center;
  padding: var(--spacing-md);
  opacity: 0;
  animation: fadeIn 1.5s ease-out forwards;
}

.hero h1 {
  color: #fff;
  margin-bottom: var(--spacing-sm);
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  font-weight: 300;
  max-width: 600px;
  margin: 0 auto;
}

/* Standard Sections */
section {
  padding: var(--spacing-xl) 0;
}

.section-title {
  position: relative;
  display: inline-block;
  margin-bottom: var(--spacing-lg);
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: var(--color-accent);
  margin-top: var(--spacing-sm);
  margin-left: auto;
  margin-right: auto;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

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

/* Feature/About Image */
.feature-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
  /* Slight softening, mostly sharp */
  box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.1);
}

/* Services List */
.services-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.services-list li {
  background: #fff;
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  transition: transform 0.3s ease;
}

.services-list li:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent);
}

/* Footer */
footer {
  background: var(--color-primary);
  color: #fff;
  padding: var(--spacing-xl) 0;
  text-align: center;
}

footer p {
  color: var(--color-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

footer a {
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 768px) {
  :root {
    --spacing-xl: 4rem;
  }

  .grid-2 {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .order-last-mobile {
    order: 2;
  }

  nav ul {
    display: none;
    /* Simplification for MVP - typically would add a hamburger menu */
  }

  h1 {
    font-size: 2.5rem;
  }
}