/*
 * NAT GROUP WEBSITE
 * Static HTML/CSS
 * Swiss International Style
 * 
 * Colors:
 * - Primary (Logo Green): #0F5132
 * - Background: #FFFFFF
 * - Text Primary: #000000
 * - Text Secondary: #4A4A4A
 * - Text Muted: #6B6B6B
 * - Border: #E5E5E5
 */

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

html {
  font-size: 18px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-weight: 400;
  color: #000000;
  background-color: #FFFFFF;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1.3;
  color: #000000;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 1.75rem;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: #0F5132;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

@media (min-width: 640px) {
  .container {
    padding-left: 3rem;
    padding-right: 3rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

/* Header */
.header {
  width: 100%;
  padding: 2rem 0;
}

@media (min-width: 768px) {
  .header {
    padding: 3rem 0;
  }
}

.header-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media (min-width: 768px) {
  .header-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.logo {
  height: 2.5rem;
  width: auto;
}

@media (min-width: 768px) {
  .logo {
    height: 3rem;
  }
}

/* Navigation */
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .nav {
    gap: 2.5rem;
  }
}

.nav-link {
  font-size: 0.875rem;
  letter-spacing: 0.05em;
  color: #505050;
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: #000000;
}

.nav-link.active {
  color: #000000;
}

/* Main Content */
.main {
  flex: 1;
}

.content-section {
  padding: 4rem 0;
}

@media (min-width: 768px) {
  .content-section {
    padding: 6rem 0;
  }
}

@media (min-width: 1024px) {
  .content-section {
    padding: 8rem 0;
  }
}

.content-narrow {
  max-width: 42rem;
}

.content-wide {
  max-width: 48rem;
}

/* Text Styles */
.text-primary {
  color: #000000;
}

.text-secondary {
  color: #4A4A4A;
}

.text-muted {
  color: #6B6B6B;
}

.text-small {
  font-size: 0.875rem;
}

.leading-relaxed {
  line-height: 1.7;
}

/* Page Title */
.page-title {
  font-size: 2rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .page-title {
    font-size: 2.5rem;
    margin-bottom: 4rem;
  }
}

/* Home Page */
.home-title {
  font-size: 2.5rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .home-title {
    font-size: 3rem;
    margin-bottom: 3rem;
  }
}

@media (min-width: 1024px) {
  .home-title {
    font-size: 3.5rem;
  }
}

.home-subtitle {
  font-size: 1.125rem;
  color: #4A4A4A;
  line-height: 1.7;
}

@media (min-width: 768px) {
  .home-subtitle {
    font-size: 1.25rem;
  }
}

/* The Group Page */
.group-text {
  color: #000000;
  line-height: 1.7;
}

.group-text + .group-text {
  margin-top: 2rem;
}

/* Business Sectors Page */
.sectors-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sectors-list li {
  font-size: 1.125rem;
  color: #4A4A4A;
  line-height: 1.7;
  padding: 0.75rem 0;
}

/* Contact Page */
.contact-email {
  font-size: 1.125rem;
  color: #4A4A4A;
  transition: color 0.15s ease;
}

.contact-email:hover {
  color: #0F5132;
}

/* Footer */
.footer {
  width: 100%;
  padding: 3rem 0;
  margin-top: auto;
}

@media (min-width: 768px) {
  .footer {
    padding: 4rem 0;
  }
}

.footer-text {
  font-size: 0.875rem;
  color: #6B6B6B;
}