:root {
  color-scheme: light;
  --bg: #fafbfd;
  --text: #1f2937;
  --secondary: #4a5565;
  --muted: #7b8794;
  --line: #e6ebf2;
  --line-strong: #cdd6e1;
  --panel: #ffffff;
  --brand-blue: #cfe8ff;
  --brand-blue-strong: #a8d4ff;
  --brand-mint: #ddf4e7;
  --brand-yellow: #f7e7a9;
  --success-bg: #e7f7ee;
  --success: #2f8f5b;
  --info-bg: #eaf4ff;
  --info: #3a77c8;
  --reward-bg: #fcf7e2;
  --reward: #a06b00;
  --shadow: 0 18px 50px rgba(31, 41, 55, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: var(--info);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
}

header {
  border-bottom: 1px solid var(--line);
  background: rgba(250, 251, 253, 0.84);
  backdrop-filter: blur(18px);
}

.topbar {
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--text);
  font-weight: 800;
  font-size: 20px;
  text-decoration: none;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  box-shadow: 0 8px 18px rgba(31, 41, 55, 0.12);
}

nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
  font-size: 14px;
}

nav a {
  color: var(--secondary);
  text-decoration: none;
}

nav a:hover {
  color: var(--text);
  text-decoration: underline;
}

main {
  padding: 48px 0 64px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: 24px;
  align-items: stretch;
  padding: 20px 0 32px;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h1 {
  max-width: 760px;
  margin: 0 0 16px;
  font-size: clamp(34px, 6vw, 56px);
  letter-spacing: 0;
}

h2 {
  margin: 36px 0 12px;
  font-size: 26px;
  letter-spacing: 0;
}

h3 {
  margin: 26px 0 8px;
  font-size: 19px;
  letter-spacing: 0;
}

p,
ul,
ol {
  margin: 0 0 16px;
}

ul,
ol {
  padding-left: 24px;
}

.lead {
  max-width: 720px;
  color: var(--secondary);
  font-size: 20px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-bottom: 18px;
  padding: 7px 11px;
  border: 1px solid #dce7f5;
  border-radius: 999px;
  background: var(--panel);
  color: var(--secondary);
  font-size: 14px;
  font-weight: 700;
}

.hero-panel {
  display: grid;
  gap: 12px;
  align-content: center;
  padding: 22px;
  border: 1px solid #abd6ff;
  border-radius: 18px;
  background: linear-gradient(135deg, #ffffff 0%, #ddf0ff 58%, var(--brand-blue) 100%);
  box-shadow: var(--shadow);
}

.mini-card {
  padding: 14px;
  border: 1px solid rgba(171, 214, 255, 0.72);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.78);
}

.mini-card strong {
  display: block;
  margin-bottom: 2px;
}

.mini-card span {
  color: var(--secondary);
  font-size: 14px;
}

.summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 10px 0 30px;
}

.summary-item {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
}

.summary-item strong {
  display: block;
  margin-bottom: 4px;
}

.summary-item span {
  color: var(--secondary);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.card {
  display: block;
  min-height: 150px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  color: var(--text);
  text-decoration: none;
  box-shadow: 0 10px 28px rgba(31, 41, 55, 0.05);
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow);
}

.card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.card span {
  color: var(--secondary);
}

.notice {
  margin: 26px 0;
  padding: 18px;
  border: 1px solid #d1e6db;
  border-radius: 14px;
  background: var(--success-bg);
}

.meta {
  color: var(--muted);
  font-size: 14px;
}

.pill-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 24px 0;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--secondary);
  font-size: 14px;
  font-weight: 700;
}

.pill.blue {
  border-color: #dce7f5;
  background: var(--info-bg);
  color: var(--info);
}

.pill.green {
  border-color: #d1e6db;
  background: var(--success-bg);
  color: var(--success);
}

.pill.yellow {
  border-color: #f6ebd0;
  background: var(--reward-bg);
  color: var(--reward);
}

footer {
  padding: 28px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  nav {
    justify-content: flex-start;
  }

  main {
    padding-top: 32px;
  }

  .hero {
    grid-template-columns: 1fr;
  }
}