/* ========================================
   ESTUDIO WEB — Estilos compartidos
   ======================================== */

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

:root {
  --dark:     #04111f;
  --dark2:    #071827;
  --dark3:    #0a2035;
  --card:     #071522;
  --white:    #ddf0fc;
  --gray:     #6a97b5;
  --gold:     #38bdf8;
  --gold-lt:  #7dd4fc;
  --gold-dim: rgba(56,189,248,0.12);
  --border:   rgba(56,189,248,0.09);
  --serif:    'Playfair Display', serif;
  --sans:     'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--dark);
  color: var(--white);
  font-family: var(--sans);
  font-weight: 300;
  overflow-x: hidden;
}

/* ── FONDO AZUL CIELO ANIMADO ── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse 110% 70% at -10% -10%, rgba(56,189,248,0.18) 0%, transparent 55%),
    radial-gradient(ellipse 90%  60% at 110% 110%, rgba(14,165,233,0.14) 0%, transparent 55%),
    radial-gradient(ellipse 70%  50% at 50%  -20%, rgba(186,230,253,0.10) 0%, transparent 60%),
    radial-gradient(ellipse 60%  40% at 20%  80%,  rgba(56,189,248,0.07) 0%, transparent 55%);
  animation: bgFlow 18s ease-in-out infinite;
  pointer-events: none; z-index: 0;
}
@keyframes bgFlow {
  0%   { transform: scale(1)    rotate(0deg);   opacity: 1;    }
  25%  { transform: scale(1.06) rotate(1.5deg); opacity: 0.82; }
  50%  { transform: scale(1.03) rotate(-1deg);  opacity: 0.92; }
  75%  { transform: scale(1.07) rotate(2deg);   opacity: 0.78; }
  100% { transform: scale(1)    rotate(0deg);   opacity: 1;    }
}
body::after {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(56,189,248,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56,189,248,0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none; z-index: 0;
}
section, nav, footer, .marquee-section, .page-header { position: relative; z-index: 1; }

/* ── SCROLL REVEAL ── */
.reveal       { opacity: 0; transform: translateY(40px);  transition: opacity .85s ease, transform .85s ease; }
.reveal-left  { opacity: 0; transform: translateX(-40px); transition: opacity .85s ease, transform .85s ease; }
.reveal-right { opacity: 0; transform: translateX(40px);  transition: opacity .85s ease, transform .85s ease; }
.reveal.visible, .reveal-left.visible, .reveal-right.visible { opacity: 1; transform: none; }
.d1 { transition-delay: .10s; } .d2 { transition-delay: .20s; }
.d3 { transition-delay: .30s; } .d4 { transition-delay: .40s; }
.d5 { transition-delay: .50s; } .d6 { transition-delay: .60s; }

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.5rem 5rem;
  background: rgba(8,9,15,0.65);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  transition: padding .4s ease, background .4s ease;
}
nav.scrolled { padding: 1rem 5rem; background: rgba(8,9,15,0.92); }

.nav-logo {
  font-family: var(--serif); font-size: 1.25rem; letter-spacing: -.02em;
  display: flex; align-items: center; gap: .6rem;
  text-decoration: none; color: var(--white);
}
.nav-logo-dot {
  width: 8px; height: 8px; background: var(--gold); border-radius: 50%;
  animation: pulse 2.5s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity:1; transform:scale(1); }
  50%      { opacity:.6; transform:scale(1.3); }
}

.nav-links { display: flex; gap: 2.5rem; align-items: center; }
.nav-links a {
  text-decoration: none; color: rgba(240,237,232,.55);
  font-size: .8rem; font-weight: 400;
  letter-spacing: .08em; text-transform: uppercase;
  transition: color .3s;
}
.nav-links a:hover  { color: var(--white); }
.nav-links a.active { color: var(--gold) !important; }

.nav-cta {
  padding: .6rem 1.4rem !important;
  background: var(--gold) !important; color: var(--dark) !important;
  border-radius: 100px; font-weight: 600 !important;
  letter-spacing: .04em !important; text-transform: none !important;
  transition: background .3s, transform .2s !important;
}
.nav-cta:hover { background: var(--gold-lt) !important; transform: translateY(-1px); }
.nav-cta.active { color: var(--dark) !important; }

.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; background: none; border: none; padding: 4px;
}
.nav-hamburger span { display: block; width: 24px; height: 1.5px; background: var(--white); transition: transform .3s, opacity .3s; }
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── BOTONES ── */
.btn-primary {
  display: inline-flex; align-items: center; gap: .7rem;
  padding: .95rem 2.2rem; background: var(--gold); color: var(--dark);
  text-decoration: none; font-size: .88rem; font-weight: 600;
  letter-spacing: .02em; border-radius: 100px;
  transition: background .3s, transform .2s, box-shadow .3s;
}
.btn-primary:hover { background: var(--gold-lt); transform: translateY(-2px); box-shadow: 0 16px 48px rgba(201,168,76,.28); }
.btn-primary .arrow { transition: transform .25s; }
.btn-primary:hover .arrow { transform: translateX(4px); }

.btn-ghost {
  display: inline-flex; align-items: center; gap: .6rem;
  padding: .95rem 2.2rem; background: transparent; color: var(--white);
  text-decoration: none; font-size: .88rem; font-weight: 400;
  border: 1px solid rgba(255,255,255,.12); border-radius: 100px;
  transition: border-color .3s, background .3s;
}
.btn-ghost:hover { border-color: rgba(255,255,255,.3); background: rgba(255,255,255,.04); }

/* ── ETIQUETA DE SECCIÓN ── */
.section-label { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.2rem; }
.sl-line { width: 28px; height: 1px; background: var(--gold); }
.sl-text  { font-size: .7rem; letter-spacing: .22em; text-transform: uppercase; color: var(--gold); }

.section-title {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  letter-spacing: -.03em; line-height: 1.08;
}
.section-title em { font-style: italic; color: var(--gold); }

/* ── CABECERA DE PÁGINA INTERIOR ── */
.page-header {
  padding: 11rem 5rem 5rem;
  border-bottom: 1px solid var(--border);
}
.page-header-eyebrow { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; }
.ph-line { width: 28px; height: 1px; background: var(--gold); }
.ph-text  { font-size: .7rem; letter-spacing: .22em; text-transform: uppercase; color: var(--gold); }
.page-header h1 {
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 6.5rem);
  letter-spacing: -.04em; line-height: .95;
  margin-bottom: 1.5rem;
  opacity: 0; animation: fadeUp 1s .2s ease forwards;
}
.page-header h1 em { font-style: italic; color: var(--gold); }
.page-header .ph-desc {
  max-width: 540px; font-size: 1rem; line-height: 1.85;
  color: rgba(240,237,232,.5);
  opacity: 0; animation: fadeUp 1s .4s ease forwards;
}

/* ── MARQUEE ── */
.marquee-section { padding: 1.4rem 0; background: var(--gold); overflow: hidden; }
.marquee-track {
  display: flex; gap: 2.5rem;
  animation: marquee 22s linear infinite; white-space: nowrap;
}
.marquee-item {
  font-size: .76rem; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase; color: var(--dark);
  display: flex; align-items: center; gap: 1rem; flex-shrink: 0;
}
.m-dot { width: 4px; height: 4px; background: rgba(8,9,15,.35); border-radius: 50%; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ── STATS ── */
.stats-grid {
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: 20px; overflow: hidden;
}
.stat-box { background: var(--card); padding: 3.5rem 2rem; text-align: center; transition: background .3s; }
.stat-box:hover { background: #181b2a; }
.stat-number { font-family: var(--serif); font-size: 3.8rem; color: var(--gold); line-height: 1; }
.stat-desc { font-size: .86rem; color: var(--gray); margin-top: .7rem; line-height: 1.55; }

/* ── CURSOR GLOW ── */
.cursor-glow {
  position: fixed; width: 350px; height: 350px; border-radius: 50%;
  background: radial-gradient(circle, rgba(201,168,76,.04) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
  transform: translate(-50%,-50%);
}

/* ── FOOTER ── */
footer { padding: 5rem 5rem 2.5rem; border-top: 1px solid var(--border); }
.footer-top {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 4rem; margin-bottom: 4rem;
}
.footer-logo-wrap {
  font-family: var(--serif); font-size: 1.4rem;
  display: flex; align-items: center; gap: .5rem; margin-bottom: 1rem;
}
.footer-dot { width: 8px; height: 8px; background: var(--gold); border-radius: 50%; }
.footer-brand-desc { font-size: .88rem; line-height: 1.75; color: var(--gray); max-width: 270px; }
.footer-col h5 { font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--gold); margin-bottom: 1.3rem; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: .8rem; }
.footer-col li a { font-size: .87rem; color: var(--gray); text-decoration: none; transition: color .3s; }
.footer-col li a:hover { color: var(--white); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 2rem; border-top: 1px solid var(--border);
  font-size: .78rem; color: var(--gray);
}

/* ── ANIMACIONES ── */
@keyframes fadeUp { from { opacity:0; transform:translateY(28px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeRight { from { opacity:0; transform:translate(40px,-50%); } to { opacity:1; transform:translate(0,-50%); } }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  nav { padding: 1.2rem 1.5rem; }
  nav.scrolled { padding: .9rem 1.5rem; }

  .nav-links {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; gap: 1.2rem;
    background: rgba(8,9,15,.97);
    padding: 1.5rem 2rem 2rem;
    border-bottom: 1px solid rgba(255,255,255,.06);
  }
  .nav-links.open { display: flex; }
  .nav-hamburger { display: flex; }

  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .footer-top  { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: .6rem; text-align: center; }
  footer { padding: 4rem 1.5rem 2rem; }
  .page-header { padding: 7.5rem 1.5rem 4rem; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .footer-top  { grid-template-columns: 1fr; }
}