:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --accent: #3b82f6;
  --accent-dark: #1d4ed8;
  --accent-light: #60a5fa;
  --bg: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --success: #059669;
  --warning: #d97706;
  --gradient-hero: linear-gradient(
    135deg,
    #667eea 0%,
    #764ba2 50%,
    #f093fb 100%
  );
  --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(180deg, #ffffff 0%, #f6f8fc 100%);
  color: var(--text);
  line-height: 1.65;
}

.hero {
  background: var(--gradient-hero);
  color: #fff;
  position: relative;
  overflow: hidden;
  padding: 3.5rem 1rem 2.5rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
      circle at 20% 20%,
      rgba(255, 255, 255, 0.18) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 80%,
      rgba(255, 255, 255, 0.14) 0%,
      transparent 52%
    );
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
}

.top-nav {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.top-nav a {
  text-decoration: none;
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  backdrop-filter: blur(6px);
  transition: background-color 0.2s ease, border-color 0.2s ease,
    transform 0.2s ease;
}

.top-nav a:hover {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.55);
  transform: translateY(-1px);
}

.top-nav a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.65);
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  line-height: 1.15;
  margin-bottom: 0.75rem;
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(17, 24, 39, 0.25);
}

.hero p {
  max-width: 820px;
  font-size: 1.06rem;
  color: rgba(255, 255, 255, 0.92);
  opacity: 1;
}

.date {
  display: inline-flex;
  align-items: center;
  margin-top: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.page {
  max-width: 1100px;
  margin: -1.5rem auto 0;
  padding: 0 1rem 2rem;
  position: relative;
  z-index: 2;
}

.card {
  background: #ffffff;
  border: 1px solid #dbe3ef;
  border-radius: 1rem;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
  padding: 1.2rem 1.2rem;
  margin: 0.9rem 0;
}

h2 {
  font-size: 1.15rem;
  margin-bottom: 0.65rem;
  color: var(--primary-light);
}

h3 {
  margin: 0.85rem 0 0.35rem;
  font-size: 1rem;
  color: var(--text-secondary);
}

.card p,
.card li,
.page > p,
.page > li {
  color: var(--text-secondary);
}

a {
  color: var(--accent-dark);
}

ul,
ol {
  margin: 0.45rem 0 0.1rem 1.2rem;
}

.grid {
  display: grid;
  gap: 0.8rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.provider-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem 2rem;
  align-items: start;
}

.provider-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
  min-width: 0;
}

.provider-item h3 {
  margin: 0 0 0.15rem;
  min-height: 2.5rem;
}

.provider-label {
  margin: 0;
}

.provider-chip {
  display: inline-block;
  width: fit-content;
}

.callout {
  border-left: 4px solid var(--accent);
  background: rgba(59, 130, 246, 0.08);
  border-radius: 0.5rem;
  padding: 0.75rem 0.85rem;
  margin-top: 0.7rem;
}

.callout.ok {
  border-left-color: var(--success);
  background: rgba(5, 150, 105, 0.08);
}

.callout.warn {
  border-left-color: var(--warning);
  background: rgba(217, 119, 6, 0.08);
}

code {
  background: #0f172a;
  border: 1px solid #1e293b;
  border-radius: 6px;
  padding: 0.1rem 0.35rem;
  color: #dbeafe;
}

pre {
  margin: 0.5rem 0;
  background: #0f172a;
  border: 1px solid #1e293b;
  border-radius: 12px;
  padding: 0.85rem;
  overflow-x: auto;
  color: #e2e8f0;
  position: relative;
}

pre code {
  background: transparent;
  border: none;
  padding: 0;
}

.copy {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  border: 1px solid #334155;
  background: #1e293b;
  color: #e2e8f0;
  border-radius: 8px;
  padding: 0.25rem 0.55rem;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
}

.note {
  border-left: 4px solid var(--success);
  background: rgba(5, 150, 105, 0.08);
  border-radius: 0.5rem;
  padding: 0.75rem 0.85rem;
  margin-top: 0.7rem;
}

.footer {
  margin-top: 1.8rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.92rem;
}

@media (max-width: 700px) {
  .hero {
    padding-top: 2.5rem;
  }

  .top-nav {
    gap: 0.5rem;
  }

  .top-nav a {
    font-size: 0.82rem;
  }
}