@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@500;600;700;800&display=swap');

:root {
  /* Color system - Dark Mode (Default) */
  --bg-color: hsl(240, 20%, 8%);
  --bg-gradient: radial-gradient(circle at top center, hsl(240, 25%, 15%), hsl(240, 20%, 8%));
  --card-bg: hsla(240, 15%, 12%, 0.7);
  --card-border: hsla(240, 15%, 20%, 0.6);
  --text-primary: hsl(0, 0%, 95%);
  --text-secondary: hsl(240, 10%, 70%);
  --accent-primary: hsl(260, 85%, 65%);
  --accent-secondary: hsl(195, 85%, 60%);
  --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  --nav-bg: hsla(240, 15%, 8%, 0.8);
  --shadow-color: rgba(0, 0, 0, 0.5);
  
  /* Shared dimensions and filters */
  --border-radius-lg: 20px;
  --border-radius-md: 12px;
  --glass-blur: blur(12px);
  --max-width: 800px;
}

@media (prefers-color-scheme: light) {
  :root {
    /* Color system - Light Mode */
    --bg-color: hsl(220, 20%, 97%);
    --bg-gradient: radial-gradient(circle at top center, hsl(220, 25%, 94%), hsl(220, 20%, 97%));
    --card-bg: hsla(0, 0%, 100%, 0.8);
    --card-border: hsla(220, 15%, 85%, 0.6);
    --text-primary: hsl(220, 25%, 12%);
    --text-secondary: hsl(220, 15%, 45%);
    --accent-primary: hsl(260, 75%, 55%);
    --accent-secondary: hsl(195, 80%, 45%);
    --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    --nav-bg: hsla(220, 20%, 97%, 0.85);
    --shadow-color: rgba(0, 0, 0, 0.05);
  }
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-color);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--card-border);
}

.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--text-primary);
  transition: opacity 0.2s ease;
}

.logo-link:hover {
  opacity: 0.9;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-gradient);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 1.1rem;
}

.nav-menu {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s ease, transform 0.2s ease;
}

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

.nav-link.active {
  border-bottom: 2px solid var(--accent-primary);
  padding-bottom: 2px;
}

/* Main Layout */
main {
  max-width: var(--max-width);
  margin: 3rem auto 6rem;
  padding: 0 2rem;
}

.content-card {
  background: var(--card-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-lg);
  padding: 3rem;
  box-shadow: 0 10px 30px var(--shadow-color);
}

/* Typography styling */
h1 {
  font-family: 'Outfit', sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  color: var(--text-primary);
}

h3 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin: 1.5rem 0 0.8rem;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
  font-size: 1.05rem;
}

ul {
  margin: 0 0 1.5rem 1.5rem;
  color: var(--text-secondary);
}

li {
  margin-bottom: 0.6rem;
}

/* Specific elements */
.last-updated {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  opacity: 0.8;
  margin-bottom: 2rem;
}

/* Contact Button/Card */
.contact-section {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--card-border);
  text-align: center;
}

.button-link {
  display: inline-block;
  background: var(--accent-gradient);
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: 0.8rem 2rem;
  border-radius: var(--border-radius-md);
  margin-top: 0.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 15px rgba(110, 68, 255, 0.4);
}

.button-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(110, 68, 255, 0.6);
}

/* FAQ Accordion or List */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--border-radius-md);
  padding: 1.5rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.faq-item:hover {
  transform: translateY(-1px);
  border-color: var(--accent-primary);
}

.faq-question {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.faq-answer {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.5;
  margin-bottom: 0;
}

/* Footer Section */
footer {
  text-align: center;
  padding: 3rem 0;
  border-top: 1px solid var(--card-border);
  background: var(--nav-bg);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-nav {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-text {
  color: var(--text-secondary);
  font-size: 0.85rem;
  opacity: 0.8;
}

/* Responsive adjustments */
@media (max-width: 600px) {
  .nav-container {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }
  
  main {
    margin: 1.5rem auto 4rem;
    padding: 0 1rem;
  }
  
  .content-card {
    padding: 1.8rem;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.4rem;
  }
}