:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-border: #334155;
  --primary: #38bdf8;
  --primary-hover: #0284c7;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent-green: #22c55e;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

body {
  background-color: var(--bg);
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

header {
  background-color: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--surface-border);
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo svg {
  width: 32px;
  height: 32px;
  color: var(--primary);
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.nav-links a:hover {
  color: var(--text-main);
  transition: color 0.2s;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--primary);
  color: #0f172a;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  color: #ffffff;
}

.btn-outline {
  border-color: var(--surface-border);
  color: var(--text-main);
  background-color: transparent;
}

.btn-outline:hover {
  background-color: var(--surface);
}

.hero {
  padding: 96px 0 64px;
  text-align: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--primary);
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 24px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
}

.hero h1 {
  font-size: 3.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 24px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero h1 span {
  background: linear-gradient(to right, #38bdf8, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 36px;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

.status-panel {
  margin: 48px auto 0;
  max-width: 860px;
  background-color: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 12px;
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  text-align: left;
}

.status-item {
  border-right: 1px solid var(--surface-border);
  padding-right: 16px;
}

.status-item:last-child {
  border-right: none;
  padding-right: 0;
}

.status-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.status-value {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
}

.status-value.green {
  color: var(--accent-green);
}

.features {
  padding: 80px 0;
  border-top: 1px solid var(--surface-border);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  background-color: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: 12px;
  padding: 32px 24px;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
}

.card-icon {
  width: 44px;
  height: 44px;
  background: rgba(56, 189, 248, 0.1);
  color: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.faq {
  padding: 80px 0;
  border-top: 1px solid var(--surface-border);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  margin-bottom: 12px;
  background-color: var(--surface);
  overflow: hidden;
}

.faq-question {
  padding: 20px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-answer {
  padding: 0 20px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-icon {
  transition: transform 0.2s;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

footer {
  border-top: 1px solid var(--surface-border);
  padding: 48px 0 32px;
  font-size: 0.85rem;
  color: var(--text-muted);
  background-color: #0b1120;
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

@media (max-width: 768px) {
  .nav-links, .header-actions { display: none; }
  .hero h1 { font-size: 2.25rem; }
  .status-panel { grid-template-columns: 1fr 1fr; gap: 20px; }
  .status-item { border-right: none; }
  .features-grid { grid-template-columns: 1fr; }
}