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

:root {
  --primary: #1e40af;
  --secondary: #f97316;
  --accent: #10b981;
  --dark: #1e293b;
  --gray: #64748b;
  --light-gray: #f1f5f9;
  --white: #ffffff;
}

body {
  font-family:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.6;
  color: var(--dark);
  background: var(--white);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  background: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  padding: 1rem 0;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

.logo span {
  color: var(--secondary);
}

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

.nav-links a {
  color: var(--dark);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

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

.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
  display: inline-block;
}

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

.btn-primary:hover {
  background: #1e3a8a;
  transform: translateY(-2px);
}

.mobile-toggle {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  color: var(--dark);
  cursor: pointer;
}

.get-started-btn {
  color: white !important;
  background-color: var(--primary);
}

/* Hero */
.hero {
  padding: 8rem 2rem 4rem;
  background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
  color: var(--white);
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto;
  opacity: 0.95;
}

/* Content Section */
.content-section {
  padding: 4rem 2rem;
  background: var(--white);
}

.container {
  max-width: 900px;
  margin: 0 auto;
}

.last-updated {
  background: var(--light-gray);
  padding: 1rem 1.5rem;
  border-radius: 8px;
  margin-bottom: 3rem;
  border-left: 4px solid var(--secondary);
}

.last-updated strong {
  color: var(--primary);
}

.content-block {
  margin-bottom: 3rem;
}

.content-block h2 {
  color: var(--primary);
  font-size: 2rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.content-block h2 ion-icon {
  font-size: 2rem;
}

.content-block h3 {
  color: var(--dark);
  font-size: 1.5rem;
  margin: 1.5rem 0 0.75rem;
}

.content-block p {
  color: var(--gray);
  line-height: 1.8;
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.content-block ul {
  color: var(--gray);
  line-height: 1.8;
  margin-left: 2rem;
  margin-bottom: 1rem;
}

.content-block ul li {
  margin-bottom: 0.5rem;
}

.highlight-box {
  background: #fef3c7;
  border-left: 4px solid var(--secondary);
  padding: 1.5rem;
  border-radius: 8px;
  margin: 1.5rem 0;
}

.highlight-box h4 {
  color: var(--dark);
  margin-bottom: 0.75rem;
  font-size: 1.2rem;
}

.highlight-box p {
  color: var(--dark);
  margin-bottom: 0;
}

.contact-box {
  background: var(--light-gray);
  padding: 2rem;
  border-radius: 12px;
  margin-top: 3rem;
  text-align: center;
}

.contact-box h3 {
  color: var(--primary);
  margin-bottom: 1rem;
}

.contact-box p {
  margin-bottom: 1.5rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}

.contact-info a {
  color: var(--secondary);
  text-decoration: none;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color 0.3s;
}

.contact-info a:hover {
  color: var(--primary);
}

/* Table of Contents */
.toc {
  background: var(--light-gray);
  padding: 2rem;
  border-radius: 12px;
  margin-bottom: 3rem;
  position: sticky;
  top: 100px;
}

.toc h3 {
  color: var(--primary);
  margin-bottom: 1rem;
}

.toc ul {
  list-style: none;
  margin-left: 0;
}

.toc ul li {
  margin-bottom: 0.5rem;
}

.toc ul li a {
  color: var(--gray);
  text-decoration: none;
  transition: color 0.3s;
  display: block;
  padding: 0.5rem;
  border-radius: 6px;
}

.toc ul li a:hover {
  color: var(--primary);
  background: rgba(30, 64, 175, 0.05);
}

.content-wrapper {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 3rem;
  align-items: start;
}

/* Footer */
.footer {
  background: var(--dark);
  color: var(--white);
  padding: 3rem 2rem 1rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer h4 {
  margin-bottom: 1rem;
  color: var(--secondary);
}

.footer ul {
  list-style: none;
}

.footer a {
  color: var(--light-gray);
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
}

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

.copyright {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--light-gray);
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  }

  .nav-links.active {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .content-wrapper {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
  }
}