/* AI Toolkit Guide - shared styling */
:root {
  color-scheme: light dark;
  --bg: #0b1120;
  --panel: rgba(15, 23, 42, 0.92);
  --panel-soft: rgba(15, 23, 42, 0.75);
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #6366f1;
  --accent-soft: rgba(99, 102, 241, 0.16);
  --border: rgba(148, 163, 184, 0.22);
  --link: #a5b4fc;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, rgba(99, 102, 241, 0.18), transparent 55%), var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}
a {
  color: var(--link);
}
a:hover {
  text-decoration: none;
}
header {
  position: relative;
  padding: 56px 10vw 40px;
  background: linear-gradient(120deg, rgba(99, 102, 241, 0.78), rgba(147, 51, 234, 0.62));
  overflow: hidden;
}
header::after {
  content: "";
  position: absolute;
  inset: -40% -50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.25), transparent 60%);
  opacity: 0.45;
  filter: blur(2px);
  animation: spin 18s linear infinite;
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
header h1 {
  margin: 0 0 12px;
  font-size: clamp(2.4rem, 4vw, 3.4rem);
}
header p.lead {
  margin: 0;
  max-width: 720px;
  font-size: 1.05rem;
}
nav.primary-nav {
  position: relative;
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  z-index: 1;
  padding: 16px 22px;
  border-radius: 22px;
  background: rgba(15, 23, 42, 0.32);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.24);
  box-shadow: 0 16px 32px -18px rgba(15, 23, 42, 0.85);
}
nav.primary-nav::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.12);
  pointer-events: none;
}
nav.primary-nav a {
  text-decoration: none;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.28);
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.08);
  transition: transform 0.2s ease, background 0.2s ease, border 0.2s ease, box-shadow 0.2s ease;
}
nav.primary-nav a:hover,
nav.primary-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.22);
  transform: translateY(-3px);
  outline: none;
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 12px 28px -16px rgba(255, 255, 255, 0.75);
}
nav.primary-nav a.is-active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.85), rgba(147, 51, 234, 0.72));
  border-color: rgba(255, 255, 255, 0.55);
  box-shadow: 0 16px 32px -14px rgba(99, 102, 241, 0.85);
  color: #f8fafc;
}
button.nav-toggle {
  display: none;
  position: absolute;
  top: 20px;
  right: 10vw;
  padding: 10px 16px;
  background: rgba(15, 23, 42, 0.45);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  font-size: 0.95rem;
  cursor: pointer;
  z-index: 2;
}
button.nav-toggle.is-open {
  background: rgba(99, 102, 241, 0.65);
  border-color: rgba(255, 255, 255, 0.55);
  box-shadow: 0 10px 20px -14px rgba(99, 102, 241, 0.8);
}
main {
  padding: 48px 10vw 72px;
  display: grid;
  gap: 32px;
}
section {
  background: var(--panel);
  border-radius: 28px;
  padding: 32px;
  border: 1px solid var(--border);
  box-shadow: 0 24px 48px -18px rgba(15, 23, 42, 0.65);
}
section h2 {
  margin-top: 0;
  font-size: 1.9rem;
}
section h3 {
  margin-top: 28px;
  font-size: 1.3rem;
}
.lead-block {
  font-size: 1.02rem;
  color: var(--muted);
  max-width: 760px;
}
.card-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.card {
  background: var(--panel-soft);
  border-radius: 20px;
  padding: 20px 22px;
  border: 1px solid var(--border);
  transition: transform 0.2s ease, border 0.2s ease, box-shadow 0.2s ease;
}
.card h4 {
  margin: 0 0 8px;
  font-size: 1.15rem;
}
.card ul {
  margin: 8px 0 0;
  padding-left: 18px;
}
.card[data-href] {
  cursor: pointer;
}
.card[data-href]:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.45);
  box-shadow: 0 12px 26px -14px rgba(99, 102, 241, 0.65);
}
.card[data-href]:focus-visible {
  outline: 2px solid rgba(99, 102, 241, 0.8);
  outline-offset: 3px;
}
.step-list {
  counter-reset: steps;
  list-style: none;
  padding: 0;
  margin: 0;
}
.step-list li {
  counter-increment: steps;
  margin-bottom: 20px;
  padding-left: 36px;
  position: relative;
}
.step-list li::before {
  content: counter(steps);
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.75);
}
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  font-size: 0.95rem;
}
th, td {
  border: 1px solid var(--border);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}
th {
  background: var(--accent-soft);
}
.alert {
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  padding: 16px 20px;
  border-radius: 16px;
  margin: 16px 0;
}
.alert label {
  font-weight: 600;
  display: block;
  margin-bottom: 6px;
}
.alert input[type="search"] {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.75);
  color: var(--text);
  font-size: 1rem;
}
.alert input[type="search"]:focus-visible {
  outline: 2px solid rgba(99, 102, 241, 0.65);
  outline-offset: 3px;
}
blockquote.tip {
  margin: 18px 0;
  padding: 16px 20px;
  border-left: 4px solid rgba(56, 189, 248, 0.7);
  background: rgba(56, 189, 248, 0.12);
  border-radius: 16px;
}
footer {
  text-align: center;
  padding: 28px 0 48px;
  color: rgba(226, 232, 240, 0.75);
  font-size: 0.9rem;
}
@media (max-width: 900px) {
  header {
    padding: 48px 6vw 36px;
  }
  button.nav-toggle {
    display: block;
  }
  nav.primary-nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    margin-top: 20px;
    width: min(360px, 100%);
    padding: 20px;
    border-radius: 20px;
    background: rgba(15, 23, 42, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.28);
    box-shadow: 0 20px 40px -18px rgba(15, 23, 42, 0.85);
  }
  nav.primary-nav.is-open {
    display: flex;
  }
  nav.primary-nav::after {
    display: none;
  }
  nav.primary-nav a {
    width: 100%;
    text-align: left;
    box-shadow: none;
    transform: none;
  }
}
@media (max-width: 720px) {
  main {
    padding: 36px 6vw 60px;
  }
  section {
    padding: 26px;
  }
}

.no-results {
  margin-top: 10px;
  font-size: 0.95rem;
  color: rgba(226, 232, 240, 0.75);
}


.search-results {
  margin-top: 18px;
  display: grid;
  gap: 14px;
}
.search-result-item {
  display: block;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 20px;
  transition: border 0.2s ease, transform 0.2s ease;
  color: var(--text);
  text-decoration: none;
}
.search-result-item:hover,
.search-result-item:focus-visible {
  border-color: rgba(99, 102, 241, 0.45);
  transform: translateY(-2px);
  outline: none;
}
.search-result-title {
  display: block;
  font-weight: 600;
}
.search-result-summary {
  display: block;
  margin: 6px 0 0;
  font-size: 0.95rem;
  color: var(--muted);
}
.search-hint {
  font-size: 0.95rem;
  color: var(--muted);
}