/* Reset básico */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --ink: #1f2937;
  --muted: #6b7280;
  --primary: #3b82f6;
  --border: #e5e7eb;
}

html, body { height: 100%; }
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

/* Layout principal con flexbox */
.layout { display: flex; gap: 20px; padding: 24px; max-width: 1100px; margin: 0 auto; }

/* Columna izquierda */
.sidebar {
  flex: 0 0 280px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}
.perfil { width: 100%; border-radius: 999px; margin-bottom: 14px; display:block; }
.box { margin-top: 14px; }
.sidebar h2 {
  font-size: 18px;
  border-bottom: 2px solid var(--border);
  padding-bottom: 6px;
  margin-bottom: 8px;
}
.sidebar ul { list-style: square inside; color: var(--muted); }
.sidebar li { margin: 4px 0; }

/* Contenido principal */
.main-content {
  flex: 1 1 auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px;
}
.hero h1 { font-size: 30px; line-height: 1.2; }
.hero .role { color: var(--primary); font-weight: 600; margin: 2px 0 8px; }
.hero a { color: var(--primary); text-decoration: none; }
.hero a:hover { text-decoration: underline; }

.content-block h2 { margin: 14px 0 10px; }
.grid.two { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid.two h3 { margin: 10px 0 6px; }
.grid.two ul { list-style: disc inside; color: var(--muted); }

.imagenes { display: flex; gap: 12px; margin: 16px 0; }
.imagenes figure { flex: 1; }
.imagenes img { width: 100%; height: 180px; object-fit: cover; border-radius: 8px; border: 1px solid var(--border); }
.imagenes figcaption { font-size: 12px; color: var(--muted); margin-top: 6px; }

/* Footer con iconos */
.footer {
  display: flex;
  justify-content: center;
  gap: 22px;
  padding: 22px;
}
.footer img { width: 42px; height: 42px; display: block; border-radius: 999px; }
.footer a { transition: transform .15s ease; }
.footer a:hover { transform: translateY(-2px); }

/* Responsivo */
@media (max-width: 900px) {
  .layout { flex-direction: column; }
  .sidebar { flex-basis: auto; }
  .grid.two { grid-template-columns: 1fr; }
}