:root {
  --bg: #f3f6fb;
  --panel: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #2563eb;
  --accent-2: #0ea5e9;
  --accent-3: #22c55e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Noto Sans SC", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, #f7f9ff 0%, var(--bg) 60%);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 36px 20px 60px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 18px;
}

.brand small {
  display: block;
  color: var(--muted);
  font-weight: 500;
  margin-top: 2px;
}

.back-link {
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
}

.hero {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  display: grid;
  gap: 10px;
  box-shadow: 0 18px 40px rgba(37, 99, 235, 0.08);
}

.hero h1 {
  margin: 0;
  font-size: 30px;
}

.hero p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.badge {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: #eef2ff;
  color: #4338ca;
}

.section-title {
  margin: 32px 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.section-title h2 {
  margin: 0;
  font-size: 22px;
}

.section-title span {
  color: var(--muted);
  font-size: 14px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.test-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  display: grid;
  gap: 12px;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.test-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(37, 99, 235, 0.12);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: #0f172a;
  background: #e0f2fe;
  padding: 6px 10px;
  border-radius: 999px;
}

.card-title {
  margin: 0;
  font-size: 18px;
}

.card-desc {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.meta-pill {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: #f1f5f9;
  color: #0f172a;
}

.card-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 14px;
  border-radius: 10px;
  border: 0;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
}

.footer-note {
  margin-top: 30px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 720px) {
  .hero {
    padding: 20px;
  }

  .hero h1 {
    font-size: 24px;
  }
}