:root {
  color-scheme: light dark;
  --bg: #0f172a;
  --panel: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.15);
  --accent: #38bdf8;
  --text: #e2e8f0;
  --muted: #94a3b8;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at 20% 20%, rgba(56, 189, 248, 0.08), transparent 35%),
    radial-gradient(circle at 80% 10%, rgba(236, 72, 153, 0.08), transparent 30%),
    var(--bg);
  color: var(--text);
}

.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.hero {
  padding: 2rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(15, 23, 42, 0.8));
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.hero__text {
  max-width: 720px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--muted);
  margin: 0 0 0.35rem;
}

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 3vw, 2.4rem);
}

.lede {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.5rem;
  margin: 1.25rem 0 1rem;
}

.tab {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  transition: border-color 120ms ease, transform 120ms ease, box-shadow 120ms ease;
}

.tab:hover,
.tab:focus-visible {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(56, 189, 248, 0.15);
  outline: none;
}

.tab--active {
  border-color: var(--accent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04), 0 10px 24px rgba(56, 189, 248, 0.15);
  background: linear-gradient(145deg, rgba(56, 189, 248, 0.08), rgba(255, 255, 255, 0.02));
}

.tab-panel {
  margin-top: 1rem;
}

.tab-panel--hidden {
  display: none;
}

.card--full {
  grid-column: 1 / -1;
}

.card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem;
  background: var(--panel);
  backdrop-filter: blur(12px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.card__header h2 {
  margin: 0 0 0.35rem;
}

.card__header p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.card__body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.95rem;
}

.field span {
  color: var(--muted);
}

textarea,
input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.35);
  color: var(--text);
}

textarea:focus,
input:focus,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.field-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
}

.pill {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.04);
  height: 100%;
}

.pill h3 {
  margin-top: 0;
  margin-bottom: 0.35rem;
}

.pill p {
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: var(--muted);
}

.pill__link {
  color: #a855f7;
  font-weight: 600;
  text-decoration: none;
}

.pill__link:hover,
.pill__link:focus-visible {
  text-decoration: underline;
}

.footer {
  margin: 2rem 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.75rem;
}

.download {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: 0.25rem;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  color: #1d4ed8;
  background: #e0e7ff;
  font-weight: 600;
  text-decoration: none;
  transition: background 150ms ease, transform 150ms ease;
}

.download:hover,
.download:focus-visible {
  background: #c7d2fe;
  transform: translateY(-1px);
}

.download--hidden {
  display: none;
}

button {
  align-self: flex-start;
  padding: 0.65rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--accent);
  background: rgba(56, 189, 248, 0.12);
  color: var(--text);
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(56, 189, 248, 0.25);
}

output {
  display: block;
  min-height: 2.4rem;
  padding: 0.5rem 0.75rem;
  border-radius: 10px;
  border: 1px dashed var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  white-space: pre-wrap;
}

.group-list {
  margin: 0.35rem 0 0;
  padding: 0;
  list-style: none;
}

.group-list li {
  margin-bottom: 0.25rem;
}

.group-list strong {
  color: var(--accent);
}

@media (max-width: 600px) {
  .page {
    padding: 1.25rem 1rem 2rem;
  }
}