:root {
  /* Paleta limpia y profesional, inspirada en interfaz observada: fondo claro, acentos azules */
  --bg: #f5f7fb;
  --card-bg: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #1e40af;   /* azul profundo */
  --primary-600: #1d4ed8;
  --primary-50: #eef2ff;
  --border: #e5e7eb;
  --error: #b91c1c;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; color: var(--text); background: var(--bg); }

.skip-link {
  position: absolute; left: -9999px; top: -9999px;
}
.skip-link:focus {
  left: 16px; top: 16px; background: var(--primary); color: #fff; padding: 8px 12px; border-radius: 6px;
}

.site-header {
  display: flex; justify-content: center; align-items: center;
  padding: 24px 16px; background: var(--card-bg); border-bottom: 1px solid var(--border);
}
.logo-wrap { max-width: 220px; }
.site-logo { width: 100%; height: auto; display: block; }

.container {
  max-width: 960px; margin: 32px auto; padding: 0 16px;
  display: grid; grid-template-columns: 1fr; gap: 20px;
}
@media (min-width: 900px) {
  .container { grid-template-columns: 2fr 1fr; }
}

.card {
  background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px;
  padding: 24px; box-shadow: 0 6px 16px rgba(0,0,0,0.06);
}
.login-card .card-title {
  margin: 0 0 16px; font-size: 1.5rem; font-weight: 700;
}
.info-card .card-subtitle {
  margin: 0 0 8px; font-size: 1.25rem; font-weight: 600;
}

.form { display: grid; gap: 16px; }
.form-group { display: grid; gap: 8px; }
label { font-weight: 600; }
input[type="email"], input[type="password"] {
  width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 8px;
  background: #fff; color: var(--text);
}
input:focus {
  outline: none; border-color: var(--primary-600); box-shadow: 0 0 0 3px var(--primary-50);
}

.form-row.between {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.checkbox { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); }
.link { color: var(--primary-600); text-decoration: none; font-weight: 600; }
.link:hover { text-decoration: underline; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 16px; border-radius: 8px; border: 1px solid transparent; cursor: pointer;
  font-weight: 700; text-decoration: none;
}
.btn.primary { background: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-600); }
.btn.outline { background: transparent; color: var(--primary-600); border-color: var(--primary-600); }
.btn.outline:hover { background: var(--primary-50); }

.cookies-note { color: var(--muted); font-size: 0.95rem; margin-top: 8px; }

.alert.error {
  background: #fee2e2; color: var(--error); border: 1px solid #fecaca; padding: 12px 14px; border-radius: 8px;
}

.site-footer {
  text-align: center; color: var(--muted); padding: 24px 16px;
}