/* Minimal Apple-like clean styles (enhanced for smoothness & responsiveness) */
:root {
  --bg: #ffffff;
  --muted: #666;
  --accent: #0071e3;
  --max-width: 1100px;
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94); /* Smoother Apple easing */
  --border: 1px solid #eee;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  color: #111;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  line-height: 1.6;
  overflow-x: hidden; /* Prevent horizontal scroll on mobile */
}

/* Header - Smooth fixed with scroll effect */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 40px;
  border-bottom: var(--border);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition);
}

.site-header.scrolled {
  padding: 12px 40px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08); /* Softer shadow */
}

.logo {
  font-weight: 700;
  font-size: 20px;
  transition: var(--transition);
}

.nav {
  display: flex;
  gap: 20px;
}

.nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap; /* Prevent wrapping */
}

.nav a:hover {
  color: var(--accent);
  transform: translateY(-1px);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--muted);
  transition: var(--transition);
}

.mobile-toggle:hover {
  color: var(--accent);
}

/* Main Content */
.container {
  max-width: var(--max-width);
  margin: 80px auto 0; /* Offset for fixed header */
  padding: 0 20px;
  transition: var(--transition);
}

.container.narrow {
  max-width: 800px;
}

h1,
h2,
h3 {
  font-weight: 700;
  margin-bottom: 12px;
  transition: var(--transition);
}

.intro {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 20px;
  transition: var(--transition);
}

.charter-section {
  margin-top: 40px;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease-out forwards;
  line-height: 1.6;
  transition: var(--transition);
}

.charter-section:nth-child(2) {
  animation-delay: 0.2s;
}
.charter-section:nth-child(3) {
  animation-delay: 0.4s;
}
.charter-section:nth-child(4) {
  animation-delay: 0.6s;
}

.charter-section h3 {
  color: var(--accent);
  margin-bottom: 10px;
  transition: var(--transition);
}

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

/* Footer - Enhanced grid for responsiveness */
.site-footer {
  padding: 40px 20px 20px;
  font-size: 14px;
  line-height: 1.6;
  background: #f5f5f7;
  margin-top: 60px;
}

.footer-top {
  max-width: 1200px;
  margin: 0 auto;
  padding-bottom: 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(
    auto-fit,
    minmax(160px, 1fr)
  ); /* More flexible */
  gap: 24px;
}

@media (min-width: 1200px) {
  .footer-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-heading {
  font-weight: 700;
  color: #111;
  margin-bottom: 10px;
  font-size: 13px;
}

.footer-link {
  color: var(--muted);
  text-decoration: none;
  display: block; /* Better for touch */
  padding: 4px 0;
  font-size: 13px;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--accent);
  transform: translateX(4px);
}

.footer-col li {
  margin-bottom: 6px;
}

.footer-extra {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 0 18px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  border-top: var(--border);
}

.footer-bottom {
  border-top: var(--border);
  padding-top: 14px;
  padding-bottom: 28px;
  margin-top: 8px;
}

.footer-bottom-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 0 20px;
}

.footer-bottom .country {
  font-weight: 600;
  color: #111;
  font-size: 13px;
}

.footer-bottom .legal {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}

.footer-bottom .sep {
  color: var(--muted);
  margin: 0 6px;
}

/* Comprehensive Responsiveness */
@media (max-width: 1024px) {
  /* Laptop */
  .site-header {
    padding: 18px 24px;
  }
  .nav {
    gap: 16px;
  }
  .container {
    padding: 0 16px;
  }
}

@media (max-width: 768px) {
  /* Tablet */
  .site-header {
    padding: 16px 20px;
  }
  .nav {
    display: none; /* Hide desktop nav */
  }
  .mobile-toggle {
    display: block;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .footer-col li {
    white-space: normal;
  }
  h1 {
    font-size: 2rem;
  }
  h2 {
    font-size: 1.5rem;
  }
  .charter-section {
    margin-top: 32px;
  }
}

@media (max-width: 480px) {
  /* Mobile */
  .site-header {
    padding: 12px 16px;
  }
  .logo {
    font-size: 18px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }
  .container {
    margin-top: 70px;
    padding: 0 12px;
  }
  .intro {
    font-size: 1rem;
  }
  .charter-section p {
    font-size: 16px;
  } /* Touch-readable */
}