/* =============================================
   BASE — Reset + Tipografía + Utilidades
   ============================================= */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  cursor: none;
}

/* Custom cursor visible en Desktop */
@media (hover: hover) {
  body { cursor: none; }
  a, button, [role="button"] { cursor: none; }
}

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

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

ul, ol { list-style: none; }

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

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

/* ─── TIPOGRAFÍA ─────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.4rem, 6vw, 5rem); font-family: var(--font-display); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 2rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.5rem); }
h5 { font-size: 1.1rem; }
h6 { font-size: 0.9rem; font-family: var(--font-body); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }

p {
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ─── CONTENEDOR ─────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(16px, 5vw, 48px);
}

.container--md {
  max-width: var(--container-md);
}

.container--sm {
  max-width: var(--container-sm);
}

/* ─── SECCIONES ──────────────────────────────── */
.section {
  padding-block: var(--section-py);
  position: relative;
}

.section--alt {
  background-color: var(--bg-secondary);
}

.section--dark {
  background-color: var(--bg-tertiary);
}

.section-label {
  font-size: 0.75rem;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  display: inline-block;
  margin-bottom: var(--space-3);
}

.section-title {
  margin-bottom: var(--space-4);
}

.section-subtitle {
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-7);
}

/* ─── TEXTO UTILITARIO ───────────────────────── */
.text-gradient {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-accent { color: var(--accent-cyan); }
.text-muted  { color: var(--text-muted); }
.text-center { text-align: center; }

/* ─── DIVIDER ────────────────────────────────── */
.divider {
  width: 48px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-5);
}

.divider--center { margin-inline: auto; }

/* ─── SCROLLBAR ──────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb {
  background: var(--border-accent);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--accent-cyan); }

/* ─── SELECCIÓN ──────────────────────────────── */
::selection {
  background-color: rgba(0, 229, 255, 0.25);
  color: #fff;
}

/* ─── FOCUS ACCESIBLE ────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ─── UTILIDADES FLEX/GRID ───────────────────── */
.flex        { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between{ display: flex; align-items: center; justify-content: space-between; }
.grid        { display: grid; }

/* ─── VISIBILIDAD ────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}