/* Modern Corporate Design System */
:root {
  /* HSL Grayscale System (Hue: 0, Saturation: 0%) */
  --primary-color: hsl(0, 0%, 0%);
  /* Black */
  --secondary-color: hsl(0, 0%, 45%);
  /* Slate Gray */
  --accent-color: hsl(0, 0%, 0%);
  /* Also Black for monotone focus */
  --accent-hover: hsl(0, 0%, 25%);
  /* Slightly lighter on hover */
  --background-light: hsl(0, 0%, 97%);
  /* Mist */
  --border-color: hsl(0, 0%, 90%);
  /* Smoke */

  --text-dark: hsl(0, 0%, 15%);
  /* Onyx */
  --text-light: hsl(0, 0%, 45%);
  /* Slate */
  --white: hsl(0, 0%, 100%);

  --font-main: 'Inter', system-ui, -apple-system, sans-serif;

  --shadow-sm: 0 1px 2px 0 hsla(0, 0%, 0%, 0.05);
  --shadow-md: 0 4px 6px -1px hsla(0, 0%, 0%, 0.1), 0 2px 4px -2px hsla(0, 0%, 0%, 0.1);
  --shadow-lg: 0 10px 15px -3px hsla(0, 0%, 0%, 0.1), 0 4px 6px -4px hsla(0, 0%, 0%, 0.1);

  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--white);
  /* White background for clean look */
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

ul {
  list-style: none;
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  border: 1px solid var(--primary-color);
  color: var(--primary-color);
  background: transparent;
}

.btn-outline:hover {
  background-color: var(--accent-color);
  color: var(--white);
}

.section {
  padding: 5rem 0;
}

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

.mb-1 {
  margin-bottom: 1rem;
}

.mb-2 {
  margin-bottom: 2rem;
}

.mb-4 {
  margin-bottom: 4rem;
}

/* Header */
.header {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-color);
  letter-spacing: -0.025em;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-weight: 500;
  color: var(--text-light);
}

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

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  color: var(--white);
  padding: 8rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero p {
  font-size: 1.25rem;
  color: #cbd5e1;
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #e2e8f0;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card h3 {
  color: var(--text-dark);
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.card p {
  color: var(--text-light);
}

/* Footer */
.footer {
  background-color: var(--primary-color);
  color: #94a3b8;
  padding: 4rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer h4 {
  color: var(--white);
  margin-bottom: 1.5rem;
}

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

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

.copyright {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid #334155;
  font-size: 0.875rem;
}

/* Form */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--white);
  padding: 3rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

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

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-dark);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-md);
  font-family: inherit;
  transition: border-color 0.3s ease;
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
  height: 150px;
  resize: vertical;
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .nav-links {
    display: none;
  }

  /* Mobile menu simplified for now */
}