/* ════════════════════════════════════════════════════════
   SET LEGAL · main.css
   Variables, reset, tipografía, layout base, utilidades
   ════════════════════════════════════════════════════════ */

/* ─── VARIABLES ─── */
:root {
  /* Colores */
  --black:     #0a0a0a;
  --dark:      #111111;
  --mid:       #1c1c1c;
  --gold:      #1a47cc;
  --gold-lt:   #3360e0;
  --gold-dk:   #1038a8;
  --white:     #ffffff;
  --off:       #f5f5f3;
  --gray:      #888888;
  --light-gray:#cccccc;
  --text:      #2a2a2a;
  --text-mid:  #555555;
  --text-light:#888888;

  /* Layout */
  --nav-h:     80px;
  --max-w:     1200px;
  --pad-x:     48px;
  --pad-x-sm:  24px;

  /* Transiciones */
  --trans:     0.3s ease;
  --trans-slow:0.6s ease;
}

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

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

body {
  font-family: 'Open Sans', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
}

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

a { color: inherit; }

ul, ol { list-style: none; }

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

/* ─── TIPOGRAFÍA ─── */

/* Google Fonts — cargado en cada HTML */
/* Montserrat: 300, 400, 500, 600, 700, italic */
/* Open Sans:  300, 400, 600 */

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 300;
  line-height: 1.2;
  color: var(--dark);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(36px, 5.5vw, 64px); }
h2 { font-size: clamp(28px, 3.5vw, 44px); }
h3 { font-size: clamp(20px, 2.5vw, 28px); }
h4 { font-size: 18px; }

strong { font-weight: 700; }

p {
  font-family: 'Open Sans', sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-mid);
}

/* ─── LAYOUT ─── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

section { padding: 100px 0; }

/* ─── UTILIDADES ─── */

.section-tag {
  font-family: 'Montserrat', sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
  display: block;
}

.section-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 300;
  line-height: 1.2;
  color: var(--dark);
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.section-title strong { font-weight: 700; }

.section-body {
  font-family: 'Open Sans', sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-mid);
  max-width: 680px;
}

.section-body p + p { margin-top: 18px; }

.gold-divider {
  width: 48px;
  height: 2px;
  background: var(--gold);
  margin-bottom: 32px;
}

/* Botones genéricos */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Montserrat', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 14px 32px;
  border-radius: 2px;
  border: none;
  cursor: pointer;
  transition: background var(--trans), color var(--trans), border-color var(--trans);
}

.btn-gold {
  background: var(--gold);
  color: var(--white);
}
.btn-gold:hover { background: var(--gold-lt); color: var(--white); }

.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 1.5px solid var(--gold);
}
.btn-outline:hover { background: var(--gold); color: var(--white); }

.btn-outline-dark {
  background: transparent;
  color: var(--dark);
  border: 1.5px solid var(--dark);
}
.btn-outline-dark:hover { background: var(--dark); color: var(--white); }

.btn-lg { padding: 18px 40px; font-size: 13px; }

/* Link con flecha */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--dark);
  transition: color var(--trans);
}
.link-arrow:hover { color: var(--gold); }

.link-arrow svg {
  width: 14px;
  height: 14px;
  transition: transform var(--trans);
}
.link-arrow:hover svg { transform: translateX(4px); }

.link-underline {
  display: inline-block;
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--dark);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 3px;
  transition: color var(--trans);
}
.link-underline:hover { color: var(--gold); }

.link-underline-gold {
  display: inline-block;
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--gold);
  border-bottom: 2px solid var(--gold);
  padding-bottom: 3px;
  transition: opacity var(--trans);
}
.link-underline-gold:hover { opacity: 0.75; }

/* Tags de servicio */
.tag {
  font-family: 'Montserrat', sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  background: var(--off);
  border: 0.5px solid #ddd;
  padding: 5px 12px;
  border-radius: 2px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ─── ANIMACIÓN REVEAL ON SCROLL ─── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

.reveal-left {
  opacity: 0;
  transform: translateX(-28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.visible {
  opacity: 1;
  transform: none;
}

.reveal-right {
  opacity: 0;
  transform: translateX(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.visible {
  opacity: 1;
  transform: none;
}

/* Delays encadenados para grids */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  :root {
    --pad-x: var(--pad-x-sm);
  }
  section { padding: 72px 0; }
}

@media (max-width: 600px) {
  section { padding: 56px 0; }
  .container { padding: 0 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}