/**
 * BANKAI + — BASE
 * Reset, estilos globales y utilitarios
 */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--dark);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 400;
  overflow-x: hidden;
  line-height: 1.5;
}

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

a {
  color: inherit;
}

/* ── Grain overlay ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.4;
}

/* ── Secciones generales ── */
.section {
  padding: var(--section-padding);
  position: relative;
  /* Contenedor centrado: padding lateral crece en pantallas anchas
     para que el contenido nunca sea más ancho que --max-width */
  padding-left: max(48px, calc((100% - var(--max-width)) / 2 + 48px));
  padding-right: max(48px, calc((100% - var(--max-width)) / 2 + 48px));
}
}

/* ── Encabezados de sección ── */
.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.section-label::before {
  content: '';
  width: 30px;
  height: 1px;
  background: var(--red);
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 16px;
}

.section-title em {
  font-style: italic;
  color: var(--cream);
}

.section-subtitle {
  color: var(--text-body);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 560px;
}

/* ── Botones globales ── */
.btn-primary {
  display: inline-block;
  background: var(--red);
  color: var(--white);
  padding: 16px 36px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 24px var(--red-glow);
  cursor: pointer;
  border: none;
  font-family: var(--font-body);
}

.btn-primary:hover {
  background: var(--red-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 36px rgba(229,9,20,0.4);
}

.btn-secondary {
  display: inline-block;
  background: rgba(255,255,255,0.08);
  color: var(--white);
  padding: 16px 36px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.18);
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background var(--transition), border-color var(--transition);
  cursor: pointer;
  font-family: var(--font-body);
  backdrop-filter: blur(4px);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.14);
  border-color: rgba(255,255,255,0.35);
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Animaciones ── */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.4); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}