:root {
  --bg-base: #090d16;
  --bg-gradient: radial-gradient(circle at 50% -10%, #1e1b4b 0%, #090d16 55%);
  --bg-card: rgba(17, 24, 39, 0.75);
  --border-card: rgba(255, 255, 255, 0.1);
  --border-subtle: rgba(255, 255, 255, 0.08);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-heading: #ffffff;
  --accent-cyan: #38bdf8;
  --accent-cyan-hover: #7dd3fc;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Ubuntu", sans-serif;
}

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

html {
  font-family: var(--font-family);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  padding: 24px 20px 60px;
}

.top-bar {
  max-width: 740px;
  margin: 0 auto 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.back-link {
  color: var(--accent-cyan);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.back-link:hover {
  color: var(--accent-cyan-hover);
  text-decoration: underline;
}

.container {
  max-width: 740px;
  margin: 0 auto 24px;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  border-radius: 14px;
  padding: 28px 32px;
}

h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-heading);
  margin-bottom: 16px;
}

h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 12px;
}

p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

p:last-child {
  margin-bottom: 0;
}

strong {
  color: var(--text-primary);
}

ul {
  margin: 0 0 16px 24px;
  color: var(--text-secondary);
  line-height: 1.7;
}

li {
  margin-bottom: 8px;
}

a {
  color: var(--accent-cyan);
  text-decoration: underline;
}

a:hover {
  color: var(--accent-cyan-hover);
}

footer {
  text-align: center;
  max-width: 740px;
  margin: 36px auto 0;
  color: #64748b;
  font-size: 0.88rem;
}