/* ========================================================================
   Mentotrack — estilos compartidos para páginas legales
   Coherente con estética ideas.html (oscuro, minimal)
   ======================================================================== */

:root {
  --bg-dark: #0a0a0a;
  --card-bg: rgba(255, 255, 255, 0.03);
  --card-border: rgba(255, 255, 255, 0.06);
  --purple-primary: #7c3aed;
  --purple-secondary: #6366f1;
  --text-primary: #ffffff;
  --text-gray-300: #d1d5db;
  --text-gray-400: #9ca3af;
  --text-gray-500: #6b7280;
  --hover-border: rgba(255, 255, 255, 0.1);
  --green: #10b981;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg-dark);
  color: var(--text-gray-300);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============== HEADER ============== */
header {
  background: rgba(10, 10, 10, 0.8);
  border-bottom: 1px solid var(--card-border);
  padding: 1.25rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.header-content {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.logo-link {
  text-decoration: none;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.logo-knob { color: var(--green); }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-gray-400);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
}

.back-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

/* ============== MAIN ============== */
main {
  max-width: 780px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
  width: 100%;
  flex: 1;
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.last-updated {
  color: var(--text-gray-500);
  font-size: 0.875rem;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--card-border);
}

h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p, li {
  font-size: 0.9375rem;
  color: var(--text-gray-300);
  margin-bottom: 0.75rem;
}

ul, ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

li { margin-bottom: 0.4rem; }

a {
  color: var(--purple-primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #a78bfa;
  text-decoration: underline;
}

strong { color: var(--text-primary); font-weight: 600; }

code {
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  padding: 0.1rem 0.4rem;
  border-radius: 0.25rem;
  font-size: 0.875em;
  color: #c4b5fd;
}

.callout {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-left: 3px solid var(--purple-primary);
  padding: 1rem 1.25rem;
  border-radius: 0.5rem;
  margin: 1.5rem 0;
}

.callout p:last-child { margin-bottom: 0; }

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.875rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 0.5rem;
  overflow: hidden;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--card-border);
  vertical-align: top;
}

th {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
  font-weight: 600;
}

tr:last-child td { border-bottom: none; }

/* ============== FOOTER (compartido) ============== */
.site-footer {
  border-top: 1px solid var(--card-border);
  padding: 2rem 1.5rem;
  margin-top: auto;
  background: rgba(0, 0, 0, 0.3);
}

.footer-content {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
}

.footer-links a {
  color: var(--text-gray-400);
  font-size: 0.8125rem;
}

.footer-links a:hover {
  color: var(--text-primary);
  text-decoration: none;
}

.footer-meta {
  color: var(--text-gray-500);
  font-size: 0.75rem;
}

/* ============== RESPONSIVE ============== */
@media (max-width: 640px) {
  header { padding: 1rem; }
  .header-content { gap: 0.75rem; }
  .logo-link { font-size: 1rem; }
  main { padding: 2rem 1rem 3rem; }
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.125rem; margin-top: 2rem; }
  p, li { font-size: 0.9rem; }
  .footer-links { gap: 0.75rem 1rem; }
  table { font-size: 0.8125rem; }
  th, td { padding: 0.5rem 0.6rem; }
}