:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f2f2f2;
  --bg-card: #dcdcdc;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --border-color: #e0e0e0;
  --card-border: #b0b0b0;
  --accent: #0284c7;
  --accent-hover: #0369a1;
  --accent-soft: #cfecfb;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05), 0 10px 24px rgba(15, 23, 42, 0.09);
  --shadow-md: 0 14px 32px rgba(15, 23, 42, 0.12), 0 4px 10px rgba(15, 23, 42, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Poppins", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  background:
    radial-gradient(circle at 50% -10%, rgba(2, 132, 199, 0.06), transparent 55%),
    var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
}

.welcome-container {
  max-width: 760px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}

.welcome-header {
  text-align: center;
  margin-bottom: 48px;
}

.welcome-logo {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  box-shadow: 0 12px 32px rgba(2, 132, 199, 0.22);
}

.welcome-title {
  font-size: 2.2rem;
  font-weight: 700;
  margin: 22px 0 8px;
  letter-spacing: -0.02em;
}

.welcome-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin: 0;
}

.welcome-card {
  background: var(--bg-card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 24px 26px;
  margin-bottom: 16px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.welcome-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(2, 132, 199, 0.35);
}

.welcome-card .card-icon {
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.welcome-card h2 {
  font-size: 1.15rem;
  margin: 0 0 6px;
}

.welcome-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.97rem;
}

.welcome-card code {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 5px;
  padding: 1px 6px;
  font-size: 0.86rem;
  color: var(--text-primary);
}

.welcome-card kbd {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 1px 7px;
  font-size: 0.82rem;
  color: var(--text-primary);
}

.welcome-section-title {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 40px 0 18px;
}

.welcome-footer {
  text-align: center;
  margin-top: 50px;
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

.welcome-footer a {
  color: var(--accent);
  text-decoration: none;
}

.welcome-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 480px) {
  .welcome-card {
    flex-direction: column;
    gap: 12px;
  }
}