/* ========================================================== 
   Ingenial Web · Base / Reset
   ========================================================== */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: auto; /* Lenis toma el control del scroll suave */
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--color-ink);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }

button, input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

button { cursor: pointer; border: none; background: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  margin: 0;
  letter-spacing: -0.02em;
}

p { margin: 0; line-height: 1.6; color: var(--color-ink-soft); }

ul { list-style: none; margin: 0; padding: 0; }

/* --- Foco visible (accesibilidad, PRD sección 19) --- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* --- Utilidades --- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.section {
  padding-block: var(--space-3xl);
}

.section--surface { background: var(--color-surface); }
.section--ink {
  background: var(--color-ink);
  color: var(--color-white);
}
.section--ink p { color: rgba(255,255,255,0.68); }
.section--ink h2, .section--ink h3 { color: var(--color-white); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary-dark);
  margin-bottom: var(--space-sm);
}
.section--ink .eyebrow { color: var(--color-primary); }

.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-xl);
}

.section-head--center { margin-inline: auto; text-align: center; }

/* --- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.9rem 1.75rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient-brand);
  color: var(--color-white);
  box-shadow: var(--shadow-brand);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 20px 48px rgba(24,168,224,0.36); }

.btn--accent {
  background: var(--gradient-accent);
  color: var(--color-white);
  box-shadow: 0 16px 40px rgba(246,139,31,0.28);
}
.btn--accent:hover { transform: translateY(-2px); }

.btn--ghost {
  background: transparent;
  color: var(--color-ink);
  border: 1.5px solid var(--color-border-strong);
}
.btn--ghost:hover { border-color: var(--color-primary); color: var(--color-primary-dark); }

.section--ink .btn--ghost { color: var(--color-white); border-color: rgba(255,255,255,0.24); }

.btn--sm { padding: 0.65rem 1.3rem; font-size: 0.85rem; }

/* --- Tarjetas --- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: transform var(--dur-mid) var(--ease-out), box-shadow var(--dur-mid) var(--ease-out), border-color var(--dur-mid) var(--ease-out);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

/* --- Grillas --- */
.grid {
  display: grid;
  gap: var(--space-lg);
}
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .section { padding-block: var(--space-2xl); }
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}