/* ─── Satoshi Font (CDN) ─── */
@import url('https://api.fontshare.com/v2/css?f[]=satoshi@700,600,500,400&display=swap');

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--fs-base);
  color: var(--text-primary);
  background-color: var(--navy-base);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ─── Tipografía ─── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.5rem, 6vw, 5.5rem); font-weight: 700; }
h2 { font-size: clamp(1.8rem, 3.5vw, 3rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

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

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

ul, ol {
  list-style: none;
}

/* ─── Contenedor ─── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--sp-3);
}

@media (min-width: 768px) {
  .container { padding: 0 var(--sp-5); }
}

/* ─── Utilidades ─── */
.text-center { text-align: center; }
.text-gradient {
  background: var(--grad-cta);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ─── Animaciones de entrada ─── */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up-delay-1 { transition-delay: 80ms; }
.fade-up-delay-2 { transition-delay: 160ms; }
.fade-up-delay-3 { transition-delay: 240ms; }

/* ─── Scrollbar personalizado ─── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--navy-deeper); }
::-webkit-scrollbar-thumb { background: rgba(36,113,231,0.50); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue-primary); }