:root {
  --primary-color: #0e82ff;
  --primary-hover-color: #0b76ed;
  --text-color: #e8e8ea;
  --text-light-color: #b8bcc6;
  --background-color: #0b0c0f;
  --container-background: #13151a;
  --border-color: #2b3140;
  --border-radius: 10px;
  --box-shadow-light: 0 18px 48px rgba(0, 0, 0, 0.45);
}

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

html,
body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.7;
}

a {
  color: var(--primary-color);
}

a:hover {
  color: var(--primary-hover-color);
  text-decoration: none;
}

code {
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #dfe7ff;
}

.navbar-custom {
  background-color: var(--container-background);
  border-bottom: 1px solid var(--border-color);
  padding: 15px 0;
  position: sticky;
  top: 0;
  z-index: 1020;
}

.navbar-custom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  max-width: 1100px;
}

.navbar-brand-custom {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  text-decoration: none;
}

.navbar-brand-custom:hover {
  color: var(--primary-hover-color);
  text-decoration: none;
}

.navbar-brand-custom img {
  margin-right: 10px;
  height: 28px;
  width: 28px;
}

.hero-section {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent), var(--container-background);
  padding: 64px 20px 28px;
  text-align: center;
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 70%;
  background:
    radial-gradient(60% 60% at 30% 10%, rgba(14, 165, 255, 0.35) 0%, rgba(14, 165, 255, 0.12) 30%, transparent 60%),
    radial-gradient(40% 40% at 70% -20%, rgba(124, 58, 237, 0.3) 0%, rgba(124, 58, 237, 0.1) 35%, transparent 60%);
  filter: blur(40px);
  pointer-events: none;
}

h1 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-color);
  line-height: 1.2;
}

.subtitle {
  font-size: 18px;
  color: var(--text-light-color);
  max-width: 760px;
  margin: 0 auto;
}

.main-container {
  max-width: 960px;
  margin: 30px auto 40px;
  padding: 30px;
  background-color: var(--container-background);
  border: 1px solid var(--border-color);
  box-shadow: var(--box-shadow-light);
  border-radius: var(--border-radius);
}

h2 {
  font-size: 26px;
  font-weight: 600;
  margin: 0 0 16px;
  color: var(--primary-color);
  text-align: center;
}

h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 22px 0 10px;
  color: var(--text-color);
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  justify-content: center;
  margin-top: 14px;
  color: var(--text-light-color);
  font-size: 14px;
}

.meta-pill {
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.02);
}

.divider {
  height: 1px;
  background: var(--border-color);
  margin: 22px 0;
}

.rn-section p {
  color: var(--text-light-color);
  margin: 0 0 14px;
}

.rn-section ul {
  margin: 10px 0 0 20px;
  color: var(--text-light-color);
}

.rn-section li {
  margin-bottom: 10px;
}

.callouts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.callout {
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.02);
}

.callout .label {
  font-size: 12px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-light-color);
  margin-bottom: 6px;
}

.callout .value {
  color: var(--text-color);
  margin: 0;
  font-weight: 600;
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(14, 130, 255, 0.15);
  color: #9dccff;
  font-weight: 700;
  font-size: 12px;
  margin-right: 8px;
  border: 1px solid rgba(14, 130, 255, 0.35);
}

.note-box {
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-light-color);
}

.note-box strong {
  color: var(--text-color);
  display: block;
  margin-bottom: 6px;
}

.note-box.warning {
  border-color: rgba(255, 193, 7, 0.35);
  background: rgba(255, 193, 7, 0.10);
}

.note-box.info {
  border-color: rgba(14, 130, 255, 0.35);
  background: rgba(14, 130, 255, 0.10);
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary-color);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 12px 18px;
  border-radius: 12px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 14px 34px rgba(14, 130, 255, 0.25);
}

.btn-cta:hover {
  background: var(--primary-hover-color);
  color: #fff;
  text-decoration: none;
}

.btn-secondary {
  background: transparent;
  color: var(--text-color);
  border: 1px solid var(--border-color);
  box-shadow: none;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-color);
}

footer {
  text-align: center;
  padding: 26px 10px;
  color: var(--text-light-color);
  font-size: 14px;
}

footer a {
  color: var(--text-light-color);
  text-decoration: none;
}

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

@media (max-width: 768px) {
  h1 {
    font-size: 32px;
  }

  .main-container {
    margin: 18px 10px 30px;
    padding: 20px;
  }

  .navbar-custom .container {
    padding: 0 15px;
  }

  .hero-section {
    padding: 44px 15px 18px;
  }
}