/* SaludBlog - estilo principal */
:root {
  --bg: #ffffff;
  --text: #1f2937;
  --accent: #2563eb;
  --muted: #4b5563;
  --card: #f8fafc;
  --border: #e5e7eb;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.65;
}

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1100px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

header {
  padding: 2rem 0 1rem;
}

header h1 {
  margin: 0;
  font-size: clamp(2.25rem, 4vw, 3rem);
  letter-spacing: -0.04em;
  color: #0f172a;
}

header p {
  margin: 1rem 0 0;
  max-width: 36rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.intro {
  display: grid;
  gap: 1.5rem;
}

.main-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2rem;
}

main article,
aside {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.75rem;
}

article h2,
aside h2 {
  margin-top: 0;
  color: #111827;
}

section + section {
  margin-top: 2rem;
}

.card-list {
  display: grid;
  gap: 1.25rem;
}

.card-list .card {
  padding: 1.25rem;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 0.9rem;
}

.card strong {
  display: block;
  margin-bottom: 0.5rem;
  color: #0b1220;
}

.note {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.75;
}

.disclaimer {
  border-left: 4px solid #2563eb;
  padding-left: 1rem;
  color: var(--muted);
  background: #eff6ff;
}

button {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 999px;
  padding: 0.9rem 1.3rem;
  cursor: pointer;
  font-weight: 600;
  transition: background-color 0.2s ease;
}

button:hover,
button:focus-visible {
  background: #1d4ed8;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 840px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .container {
    padding: 1.5rem 0 2.5rem;
  }

  button {
    width: 100%;
  }
}