:root {
  --bg: #05080d;
  --bg-gradient: radial-gradient(circle at top, #0b1320 0%, #05080d 50%);
  --card: #141a22;
  --card-secondary: #1a222d;
  --accent: #2f95ff;
  --text: #ffffff;
  --muted: #9da6b4;
  --font-stack: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, sans-serif;
  --transition: all 0.2s ease-in-out;
}

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

body {
  background-color: var(--bg);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-stack);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  opacity: 0.8;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 8, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding: 20px 0;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text);
}

.brand:hover {
  opacity: 1;
}

.logo-placeholder {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #FFC107 0%, #FF9800 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.logo-placeholder::after {
  content: '';
  width: 16px;
  height: 20px;
  background-color: var(--card);
  clip-path: polygon(50% 0%, 100% 20%, 100% 70%, 50% 100%, 0% 70%, 0% 20%);
}

.logo-img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
}

nav {
  display: flex;
  gap: 24px;
}

nav a {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.95rem;
}

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

/* Main Content */
main {
  flex: 1;
  padding: 64px 0;
}

/* Typography */
h1 {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 48px;
  margin-bottom: 24px;
  color: var(--text);
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

p {
  color: var(--muted);
  margin-bottom: 16px;
}

.subtitle {
  font-size: 1.25rem;
  color: var(--muted);
  margin-bottom: 40px;
  max-width: 600px;
  line-height: 1.6;
}

/* Buttons */
.btn-group {
  display: flex;
  gap: 16px;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.btn-primary {
  background-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background-color: #4da3ff;
  color: #fff;
  opacity: 1;
}

.btn-secondary {
  background-color: var(--card);
  color: var(--text);
  border: 1px solid var(--card-secondary);
}

.btn-secondary:hover {
  background-color: var(--card-secondary);
  opacity: 1;
}

/* Feature Grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

@media (min-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 20px;
  padding: 32px;
}

.card p {
  margin-bottom: 0;
}

/* Support Specific */
.contact-card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 20px;
  padding: 32px;
  margin-bottom: 48px;
}

/* FAQ Accordion */
.faq-section {
  margin-bottom: 48px;
}

.faq-item {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 16px;
  margin-bottom: 16px;
  overflow: hidden;
}

.faq-question {
  padding: 24px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  color: var(--text);
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--card-secondary);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--accent);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease-in-out;
  opacity: 0;
}

.faq-item.active .faq-answer {
  padding: 0 24px 24px;
  max-height: 600px;
  opacity: 1;
}

.troubleshooting-card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 20px;
  padding: 32px;
}

.troubleshooting-card ol {
  padding-left: 20px;
  color: var(--muted);
  margin-bottom: 24px;
}

.troubleshooting-card li {
  margin-bottom: 12px;
  padding-left: 8px;
}

.troubleshooting-card li::marker {
  color: var(--text);
}

/* Privacy Content */
.privacy-content {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 20px;
  padding: 40px;
}

.privacy-content ul {
  padding-left: 20px;
  color: var(--muted);
  margin-bottom: 32px;
}

.privacy-content li {
  margin-bottom: 12px;
  padding-left: 8px;
}

.privacy-content h3 {
  margin-top: 32px;
}

/* Footer */
footer {
  text-align: center;
  padding: 48px 24px;
  border-top: 1px solid rgba(255,255,255,0.05);
  color: var(--muted);
  font-size: 0.875rem;
  margin-top: auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
}

.disclaimer {
  max-width: 600px;
  margin: 0 auto 16px;
  font-size: 0.8rem;
  opacity: 0.7;
}

@media (max-width: 768px) {
  h1 { font-size: 2.25rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .btn-group { flex-direction: column; }
  .btn { width: 100%; }
  
  .header-content {
    flex-direction: column;
    align-items: flex-start;
  }
  
  nav {
    width: 100%;
    justify-content: flex-start;
    padding-top: 8px;
    border-top: 1px solid rgba(255,255,255,0.05);
  }
}