/* ==========================================================================
   PUBLICIDAD DIGITAL (SEM & SOCIAL ADS) — Peak Site Studio
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html, body { max-width: 100%; overflow-x: clip; }

/* ===== VARIABLES ===== */
:root {
  --primary: #0a0f2c;
  --accent: #00d4ff;
  --accent2: #0099ff;
  --bg-light: #ffffff; /* Cambiado a blanco puro */
  --bg-dark: #0a0f2c;
  --text-light: #1e2937;
  --text-dark: #f1f5f9;
  --text-soft-light: #475569; /* Un poco más oscuro para mejor contraste */
  --text-soft-dark: #94a3b8;
  --card-bg-light: #f8fafd;
  --card-bg-dark: rgba(255, 255, 255, 0.06);
  --border-light: #e2e8f0;
  --border-dark: rgba(255, 255, 255, 0.12);
}

body {
  font-family: "Inter", sans-serif;
  background: var(--bg-light);
  color: var(--text-light);
  line-height: 1.7;
  margin: 0;
  padding: 0;
}
body.dark { background: var(--bg-dark); color: var(--text-dark); }

.container { width: 90%; max-width: 1180px; margin: auto; }
section { padding: 90px 0; }

p { color: var(--text-soft-light); }
body.dark p { color: var(--text-soft-dark); }

/* =======
   HEADER 
   ======= */
.header {
  position: sticky; top: 0; z-index: 9999;
  background: rgba(255, 255, 255, 0.95);
  padding: 15px 0;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
}
body.dark .header {
  background: rgba(10, 15, 44, 0.95);
  border-bottom: 1px solid var(--border-dark);
}
.nav {
  display: flex; justify-content: space-between; align-items: center;
  width: 100%; gap: 15px;
}
nav { display: flex; align-items: center; gap: 15px; flex: 1; justify-content: flex-end; }
nav a { text-decoration: none; color: var(--primary); font-weight: 500; }
body.dark nav a { color: #fff; }

.logo { height: 28px; width: auto; flex-shrink: 0; transition: transform .3s ease; }
.logo:hover { transform: scale(1.05); }
.brand { display: flex; align-items: center; gap: 5px; text-decoration: none; color: inherit; }
.brand-name { font-weight: 700; font-size: 16px; letter-spacing: 0; line-height: 1; color: inherit; }
body.dark .brand-name {
  background: linear-gradient(90deg, #ffffff, #a0b8ff);
  background-clip: text; -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

.desktop-nav { flex: 1; display: flex; gap: 10px; justify-content: flex-end; }
.nav-right { display: flex; align-items: center; gap: 15px; }
.mobile-menu-btn {
  display: none; background: none; border: none;
  font-size: 34px; color: var(--primary); cursor: pointer; padding: 5px 10px;
}
body.dark .mobile-menu-btn { color: #fff; }
.mobile-menu {
  position: fixed; inset: 0; width: 100vw; height: 100vh;
  background: rgba(0, 0, 0, 0.65); backdrop-filter: blur(4px);
  z-index: 9999999; display: none; justify-content: flex-end;
}
.mobile-menu.active { display: flex; }
.mobile-menu-links {
  position: fixed !important; top: 0 !important; right: 0 !important;
  width: 82vw !important; max-width: 300px !important; height: 100vh !important;
  padding: 80px 25px 40px 30px !important;
  background: #0a0f2c !important; z-index: 9999999999 !important;
}
.close-menu-btn {
  position: fixed; top: 18px; right: 18px; font-size: 32px; color: #fff;
  background: rgba(0, 0, 0, 0.4); border: none; border-radius: 8px;
  padding: 6px 10px; cursor: pointer; z-index: 9999999999 !important;
}
.mobile-link {
  display: block; color: #fff; font-size: 1.1rem; padding: 16px 0;
  text-align: left; text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.15);
}
.mobile-link:last-child { border-bottom: none; }
.mobile-link:active { background: rgba(0, 212, 255, 0.12); }

/* THEME BTN */
.theme-toggle {
  height: 32px; width: 32px; border: 1px solid var(--border-light);
  border-radius: 6px; background: none; cursor: pointer; transition: .3s; color: var(--primary);
}
body.dark .theme-toggle { border: 1px solid rgba(255,255,255,.2); color: #fff; }
.theme-toggle:hover { background: rgba(0, 212, 255, 0.08); }

/* LANG */
.lang-switch { position: relative; display: inline-block; margin-left: 12px; z-index: 100; }
.lang-current {
  display: flex !important; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 10px;
  background: #0f1629; color: #fff; font-weight: 600; font-size: 15px;
  cursor: pointer; white-space: nowrap;
  border: 2px solid transparent !important;
  box-shadow: 0 4px 12px rgba(0,0,0,.3) !important;
  transition: all .2s ease !important; outline: none !important;
}
.lang-current:hover {
  background: #1a2338 !important; border: 2px solid #00d4ff !important;
  box-shadow: 0 0 0 4px rgba(0,212,255,.25), 0 6px 20px rgba(0,212,255,.45) !important;
}
.lang-switch:hover .lang-current {
  border: 2px solid transparent !important;
  box-shadow: 0 4px 12px rgba(0,0,0,.3) !important;
}
.lang-menu {
  position: absolute; top: 100%; right: 0; margin-top: 0;
  background: #1f252f; border: 1px solid #444; border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,.3); display: none;
  min-width: 180px; padding: 8px 0; z-index: 9999;
}
.lang-switch:hover .lang-menu { display: block; }
.flag-wrapper { display: inline-flex; padding: 2px; background: transparent; border: none; }
.lang-current img, .lang-option img {
  width: 26px; height: 17px; object-fit: cover; border-radius: 3px;
}
.arrow { font-size: 19px; line-height: 1; color: #fff; }
.lang-option {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 18px; color: #eee; text-decoration: none; font-size: 15px;
}
.lang-option:hover { background: #2a323f; }

/* MEGA MENU */
.nav-item { position: relative; display: inline-block; }
.nav-link {
  text-decoration: none; color: inherit; font-weight: 500;
  padding: 12px 14px !important; border-radius: 8px;
  transition: background .25s ease;
  display: inline-flex; align-items: center; gap: 4px;
  height: 46px; line-height: 1;
}
.nav-link:hover { background: rgba(0, 212, 255, 0.08); }
.chevron { font-size: .68em; transition: transform .3s ease; position: relative; top: -1px; }
.desktop-nav a {
  display: inline-flex !important; align-items: center !important;
  height: 46px !important; padding: 12px 14px !important;
}
.mega-menu {
  position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
  padding-top: 15px; opacity: 0; visibility: hidden;
  transition: all .3s ease; z-index: 10000; pointer-events: none; width: 100vw;
}
.nav-item:hover .mega-menu { opacity: 1; visibility: visible; pointer-events: auto; }
.mega-menu-content {
  background: #fff; border-radius: 22px;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,.22);
  border: 1px solid #e2e8f0; margin: 0 auto;
  max-width: 1180px; width: 95%; padding: 50px 48px;
}
body.dark .mega-menu-content { background: #0f1629; border-color: rgba(255,255,255,.09); }
.mega-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 52px; }
.mega-column { display: flex; flex-direction: column; align-items: flex-start; gap: 20px; }
.mega-column h4 {
  font-size: 14.8px; font-weight: 700; color: #00d4ff;
  margin-bottom: 28px; letter-spacing: .5px; text-transform: uppercase;
  line-height: 1.25; flex-shrink: 0;
}
.mega-column a {
  display: block; padding: 2px 6px; color: var(--text-light);
  text-decoration: none; font-size: 15.4px; line-height: 1.4; flex-shrink: 0;
  transition: all .25s ease;
}
body.dark .mega-column a { color: var(--text-dark); }
.mega-column a:hover { color: #00d4ff; padding-left: 12px; }
@media (max-width: 991px) { .mega-menu { display: none !important; } }

/* ==========================================================================
   FOOTER — copiado 1:1 desde styles.css
   ========================================================================== */
.footer-pro {
  background: #080b14; color: #aaa;
  padding: 80px 0 40px; margin: 0;
}
.footer-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 40px; margin-bottom: 50px;
}
.footer-pro h4 { color: #fff; margin-bottom: 15px; font-size: 14px; }
.footer-pro a {
  display: block; text-decoration: none; color: #888;
  font-size: 14px; margin-bottom: 10px; transition: .3s;
}
.footer-pro a:hover { color: #00d4ff; }
.footer-bottom {
  border-top: 1px solid #222; padding-top: 20px;
  display: flex; justify-content: space-between; align-items: center; font-size: 13px;
}
body:not(.dark) .footer-pro { background: #f8fafd !important; color: #475569 !important; }
body:not(.dark) .footer-pro h4 { color: #1e2937 !important; }
body:not(.dark) .footer-pro a { color: #64748b !important; }
body:not(.dark) .footer-pro a:hover { color: #0f172a !important; }
body:not(.dark) .footer-bottom { border-top-color: #e2e8f0 !important; color: #64748b !important; }

/* Header lang light-mode fix */
body:not(.dark) .header .lang-current {
  background: #fff !important; color: #0a0f2c !important;
  border: 2px solid transparent !important;
  box-shadow: 0 8px 25px rgba(10,15,44,.08) !important;
  transition: all .3s ease !important;
}
body:not(.dark) .header .lang-current .arrow { color: #0a0f2c !important; }
body:not(.dark) .lang-current:hover,
body:not(.dark) .lang-switch:hover .lang-current {
  background: #fff !important; border: 2px solid #00d4ff !important;
  box-shadow: 0 0 0 4px rgba(0,212,255,.2), 0 10px 30px rgba(0,212,255,.35) !important;
}
body:not(.dark) .lang-menu {
  background: #fff !important; border: 1px solid #e2e8f0 !important;
  border-radius: 14px !important; box-shadow: 0 15px 40px rgba(10,15,44,.1) !important;
  padding: 6px 0 !important;
}
body:not(.dark) .lang-menu .lang-option { color: #1e2937 !important; font-weight: 500 !important; }
body:not(.dark) .lang-menu .lang-option:hover { background: #f1f5f9 !important; color: #0099ff !important; }

/* ==========================================================================
   ANIMACIONES (fade-up / delay)
   ========================================================================== */
.fade-up { opacity: 0; transform: translateY(40px); transition: all .8s cubic-bezier(.25,.1,.25,1); }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up.delay  { transition-delay: .12s; }
.fade-up.delay2 { transition-delay: .24s; }
.fade-up.delay3 { transition-delay: .36s; }

/* Botones */
.btn-primary {
  background: linear-gradient(90deg, #00f5ff, #0099ff);
  color: #0a0f2c; padding: 16px 40px; border-radius: 60px;
  font-size: 1.05rem; font-weight: 600; text-decoration: none;
  display: inline-block; transition: all .3s ease;
  box-shadow: 0 10px 30px rgba(0,212,255,.35);
}
.btn-primary:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(0,245,255,.45); }
.btn-ghost {
  display: inline-block; padding: 16px 32px; border-radius: 60px;
  border: 1.5px solid rgba(255,255,255,.35); color: #fff;
  text-decoration: none; font-weight: 600; transition: all .3s ease;
}
.btn-ghost:hover { border-color: #00d4ff; background: rgba(0,212,255,.1); }

/* Section tags */
.section-tag {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  background: rgba(0,212,255,.12); color: #0099ff;
  font-size: .8rem; font-weight: 600; letter-spacing: .8px;
  text-transform: uppercase; margin-bottom: 18px;
}
body.dark .section-tag { background: rgba(0,212,255,.15); color: #00d4ff; }
.section-tag.light { background: rgba(255,255,255,.15); color: #fff; }

.ads-section-head { text-align: center; max-width: 780px; margin: 0 auto 60px; }
.ads-section-head h2 { font-size: 2.4rem; line-height: 1.15; margin: 0 0 18px; color: var(--text-light); }
body.dark .ads-section-head h2 { color: var(--text-dark); }
.ads-section-head p { font-size: 1.08rem; }

/* ==========================================================================
   HERO
   ========================================================================== */
.ads-hero {
  position: relative; overflow: hidden;
  background: radial-gradient(1200px 600px at 20% 10%, #16204d 0%, transparent 60%),
              radial-gradient(900px 500px at 90% 20%, #0a2a55 0%, transparent 55%),
              linear-gradient(135deg, #060a20, #0a0f2c 60%, #0a1636);
  color: #fff; padding: 160px 20px 130px; text-align: center;
}
.ads-hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb {
  position: absolute; border-radius: 50%; filter: blur(70px); opacity: .55;
  animation: floatOrb 12s ease-in-out infinite;
}
.orb-1 { width: 380px; height: 380px; background: #00d4ff; top: -80px; left: -80px; }
.orb-2 { width: 460px; height: 460px; background: #0099ff; bottom: -140px; right: -120px; animation-delay: -6s; }
@keyframes floatOrb { 50% { transform: translateY(-30px) translateX(20px); } }

.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
}

.ads-hero-inner { position: relative; z-index: 2; max-width: 950px; margin: 0 auto; }
.ads-eyebrow {
  display: inline-block; padding: 8px 18px; border-radius: 999px;
  background: rgba(0,212,255,.15); border: 1px solid rgba(0,212,255,.35);
  color: #7ee6ff; font-size: .82rem; font-weight: 600;
  letter-spacing: 1.2px; text-transform: uppercase; margin-bottom: 24px;
}
.ads-hero h1 {
  font-size: 3.6rem; line-height: 1.08; font-weight: 700;
  margin: 0 0 22px; color: #fff;
}
.ads-hero h1 .grad {
  background: linear-gradient(90deg, #00f5ff, #0099ff);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.ads-hero-sub { font-size: 1.2rem; color: #cbd5e1; max-width: 780px; margin: 0 auto 38px; }
.ads-hero-ctas { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 60px; }
.ads-hero-stats {
  display: flex; justify-content: center; gap: 60px; flex-wrap: wrap;
  padding-top: 40px; border-top: 1px solid rgba(255,255,255,.1); margin-top: 20px;
}
.ads-hero-stats > div { text-align: center; }
.ads-hero-stats strong {
  display: block; font-size: 2.2rem; font-weight: 700;
  background: linear-gradient(90deg, #00f5ff, #0099ff);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.ads-hero-stats span { color: #94a3b8; font-size: .9rem; letter-spacing: .5px; text-transform: uppercase; }

/* ==========================================================================
   INTRO
   ========================================================================== */
.ads-intro { background: var(--bg-light); }
body.dark .ads-intro { background: var(--bg-dark); }
.ads-intro-head { text-align: center; max-width: 780px; margin: 0 auto 50px; }
.ads-intro-head h2 { font-size: 2.3rem; line-height: 1.2; margin: 0; color: var(--text-light); }
body.dark .ads-intro-head h2 { color: var(--text-dark); }
.ads-intro-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 30px 60px; max-width: 1080px; margin: 0 auto;
}
.ads-intro-grid p { margin: 0; font-size: 1.02rem; }
.ads-intro-grid strong { color: var(--accent2); }
body.dark .ads-intro-grid strong { color: var(--accent); }

/* ==========================================================================
   SERVICE CARDS (Google Ads / Social Ads)
   ========================================================================== */
.ads-services { background: linear-gradient(180deg, #f0f6fc 0%, var(--bg-light) 100%); }
body.dark .ads-services { background: linear-gradient(180deg, #0a1230 0%, var(--bg-dark) 100%); }
.ads-services-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; }
.ads-service-card {
  position: relative; background: var(--card-bg-light);
  border: 1px solid var(--border-light); border-radius: 24px;
  padding: 44px 40px; transition: all .4s ease; overflow: hidden;
}
body.dark .ads-service-card { background: var(--card-bg-dark); border-color: var(--border-dark); }
.ads-service-card::before {
  content: ""; position: absolute; inset: 0; border-radius: 24px;
  padding: 1.5px; background: linear-gradient(135deg, #00d4ff, transparent 60%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .4s ease; pointer-events: none;
}
.ads-service-card:hover { transform: translateY(-8px); box-shadow: 0 30px 60px -20px rgba(0,212,255,.25); }
.ads-service-card:hover::before { opacity: 1; }
.ads-service-icon {
  width: 60px; height: 60px; border-radius: 16px;
  display: grid; place-items: center; margin-bottom: 22px;
  background: linear-gradient(135deg, #00d4ff, #0099ff); color: #0a0f2c;
}
.ads-service-icon.alt { background: linear-gradient(135deg, #a855f7, #0099ff); color: #fff; }
.ads-service-icon svg { width: 30px; height: 30px; }
.ads-service-card h3 { font-size: 1.6rem; margin: 0 0 16px; color: var(--text-light); }
body.dark .ads-service-card h3 { color: var(--text-dark); }
.ads-service-card p { margin: 0 0 14px; font-size: .98rem; }
.ads-chips { list-style: none; padding: 0; margin: 22px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.ads-chips li {
  padding: 6px 14px; border-radius: 999px; font-size: .82rem; font-weight: 500;
  background: rgba(0,212,255,.1); color: #0099ff; border: 1px solid rgba(0,212,255,.25);
}
body.dark .ads-chips li { color: #7ee6ff; background: rgba(0,212,255,.12); }

/* ==========================================================================
   METRICS (Data-Driven)
   ========================================================================== */
.ads-data { background: var(--bg-light); }
body.dark .ads-data { background: var(--bg-dark); }
.ads-metrics {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px;
}
.ads-metric {
  position: relative; padding: 30px 24px; border-radius: 18px;
  background: var(--card-bg-light); border: 1px solid var(--border-light);
  transition: all .35s ease;
}
body.dark .ads-metric { background: var(--card-bg-dark); border-color: var(--border-dark); }
.ads-metric:hover { transform: translateY(-6px); border-color: #00d4ff; box-shadow: 0 20px 40px -15px rgba(0,212,255,.3); }
.ads-metric span {
  display: inline-block; padding: 4px 12px; border-radius: 6px;
  background: linear-gradient(135deg, #00d4ff, #0099ff); color: #0a0f2c;
  font-weight: 700; font-size: .78rem; letter-spacing: 1px; margin-bottom: 14px;
}
.ads-metric h4 { font-size: 1.05rem; margin: 0 0 8px; color: var(--text-light); }
body.dark .ads-metric h4 { color: var(--text-dark); }
.ads-metric p { font-size: .9rem; margin: 0; line-height: 1.55; }

/* ==========================================================================
   SPLIT SECTIONS
   ========================================================================== */
.ads-split-section { background: linear-gradient(180deg, var(--bg-light), #eef4fb); }
body.dark .ads-split-section { background: linear-gradient(180deg, var(--bg-dark), #0d1636); }
.ads-split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 70px;
  align-items: center; margin-bottom: 100px;
}
.ads-split:last-child { margin-bottom: 0; }
.ads-split.reverse .ads-split-text { order: 2; }
.ads-split-text h2 { font-size: 2rem; line-height: 1.2; margin: 0 0 20px; color: var(--text-light); }
body.dark .ads-split-text h2 { color: var(--text-dark); }
.ads-split-text p { margin: 0 0 14px; }

.ads-split-visual { display: grid; place-items: center; }
.visual-card {
  position: relative; width: 100%; max-width: 380px;
  padding: 30px 26px; border-radius: 20px;
  background: #fff; box-shadow: 0 30px 70px -20px rgba(10,15,44,.25);
  border: 1px solid var(--border-light);
}
body.dark .visual-card { background: #0f1629; border-color: rgba(255,255,255,.08); }
.visual-bar { display: flex; gap: 6px; margin-bottom: 24px; }
.visual-bar span { width: 10px; height: 10px; border-radius: 50%; background: #e2e8f0; }
.visual-bar span:first-child { background: #ff6b6b; }
.visual-bar span:nth-child(2) { background: #ffd166; }
.visual-bar span:last-child { background: #06d6a0; }
.visual-line {
  height: 12px; border-radius: 6px; background: #e2e8f0; margin-bottom: 14px;
}
body.dark .visual-line { background: rgba(255,255,255,.1); }
.visual-line.big { height: 20px; width: 80%; background: linear-gradient(90deg, #00d4ff, #0099ff); }
.visual-line.short { width: 55%; }
.visual-btn {
  margin-top: 22px; padding: 14px; text-align: center;
  border-radius: 12px; font-weight: 600; color: #0a0f2c;
  background: linear-gradient(90deg, #00f5ff, #0099ff);
  animation: pulseBtn 2.4s ease-in-out infinite;
}
@keyframes pulseBtn { 50% { transform: scale(1.04); box-shadow: 0 10px 30px rgba(0,212,255,.4); } }
.visual-badge {
  position: absolute; top: -14px; right: -14px;
  background: #0a0f2c; color: #00d4ff; font-weight: 700;
  padding: 8px 14px; border-radius: 999px; font-size: .82rem;
  border: 2px solid #00d4ff; box-shadow: 0 8px 20px rgba(0,212,255,.35);
}

.visual-analytics {
  width: 100%; max-width: 420px; padding: 28px;
  background: #fff; border-radius: 20px; border: 1px solid var(--border-light);
  box-shadow: 0 30px 70px -20px rgba(10,15,44,.25);
}
body.dark .visual-analytics { background: #0f1629; border-color: rgba(255,255,255,.08); }
.va-header { display: flex; gap: 8px; margin-bottom: 24px; }
.va-header span { width: 12px; height: 12px; border-radius: 50%; background: #e2e8f0; }
body.dark .va-header span { background: rgba(255,255,255,.15); }
.va-chart {
  display: flex; align-items: flex-end; gap: 12px;
  height: 180px; padding: 0 4px; border-bottom: 2px solid #f1f5f9; margin-bottom: 16px;
}
body.dark .va-chart { border-color: rgba(255,255,255,.08); }
.va-bar {
  flex: 1; border-radius: 8px 8px 0 0;
  background: linear-gradient(180deg, #00d4ff, #0099ff);
  transform-origin: bottom; animation: growBar 1.2s cubic-bezier(.25,.1,.25,1) both;
}
@keyframes growBar { from { transform: scaleY(0); } }
.va-footer { text-align: center; font-size: .85rem; color: var(--text-soft-light); }
body.dark .va-footer { color: var(--text-soft-dark); }

/* ==========================================================================
   SEO + SEM SYNERGY
   ========================================================================== */
.ads-synergy { background: var(--bg-light); }
body.dark .ads-synergy { background: var(--bg-dark); }
.synergy-card {
  max-width: 900px; margin: 0 auto; text-align: center;
  padding: 60px 50px; border-radius: 28px;
  background: linear-gradient(135deg, #ffffff, #f0f9ff);
  border: 1px solid var(--border-light);
  box-shadow: 0 30px 60px -20px rgba(10,15,44,.15);
}
body.dark .synergy-card {
  background: linear-gradient(135deg, #0f1629, #14204a);
  border-color: rgba(255,255,255,.08);
}
.synergy-icons { display: flex; gap: 20px; justify-content: center; align-items: center; margin-bottom: 26px; }
.s-icon {
  padding: 14px 26px; border-radius: 14px;
  background: linear-gradient(135deg, #00d4ff, #0099ff);
  color: #0a0f2c; font-weight: 800; letter-spacing: 1.5px;
  box-shadow: 0 10px 25px rgba(0,212,255,.35);
}
.s-icon.alt { background: linear-gradient(135deg, #a855f7, #ec4899); color: #fff; box-shadow: 0 10px 25px rgba(168,85,247,.35); }
.s-plus { font-size: 2rem; font-weight: 300; color: var(--text-soft-light); }
.synergy-card h2 { font-size: 2rem; margin: 0 0 20px; color: var(--text-light); }
body.dark .synergy-card h2 { color: var(--text-dark); }
.synergy-card p { max-width: 700px; margin: 0 auto 14px; }

/* ==========================================================================
   SECURITY
   ========================================================================== */
.ads-security { background: linear-gradient(180deg, #f0f6fc, var(--bg-light)); }
body.dark .ads-security { background: linear-gradient(180deg, #0a1230, var(--bg-dark)); }
.security-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 40px; max-width: 1000px; margin: 0 auto;
}
.sec-item {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 18px 22px; border-radius: 14px;
  background: var(--card-bg-light); border: 1px solid var(--border-light);
  transition: all .3s ease;
}
body.dark .sec-item { background: var(--card-bg-dark); border-color: var(--border-dark); }
.sec-item:hover { border-color: #00d4ff; transform: translateX(4px); }
.sec-dot {
  flex-shrink: 0; width: 12px; height: 12px; border-radius: 50%;
  background: linear-gradient(135deg, #00d4ff, #0099ff); margin-top: 8px;
  box-shadow: 0 0 0 4px rgba(0,212,255,.15);
}
.sec-item p { margin: 0; font-size: .95rem; color: var(--text-light); }
body.dark .sec-item p { color: var(--text-dark); }
.security-note {
  max-width: 780px; margin: 50px auto 0; text-align: center;
  font-style: italic; font-size: 1.02rem;
}

/* ==========================================================================
   OPTIMIZATION
   ========================================================================== */
.ads-optimization {
  background: linear-gradient(135deg, #0a0f2c, #142557);
  color: #fff; text-align: center; padding: 110px 20px;
  position: relative; overflow: hidden;
}
.ads-optimization::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px 300px at 50% 0%, rgba(0,212,255,.2), transparent 70%);
  pointer-events: none;
}
.opt-wrap { max-width: 800px; margin: 0 auto; position: relative; z-index: 2; }
.opt-wrap h2 { color: #fff; font-size: 2.3rem; margin: 0 0 20px; }
.opt-wrap p { color: #cbd5e1; font-size: 1.08rem; margin: 0 0 16px; }

/* ==========================================================================
   INCLUDES CHECKLIST
   ========================================================================== */
.ads-includes { background: var(--bg-light); }
body.dark .ads-includes { background: var(--bg-dark); }
.includes-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
  max-width: 1100px; margin: 0 auto;
}
.inc-item {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 22px; border-radius: 14px;
  background: var(--card-bg-light); border: 1px solid var(--border-light);
  font-size: .96rem; color: var(--text-light); transition: all .3s ease;
}
body.dark .inc-item { background: var(--card-bg-dark); border-color: var(--border-dark); color: var(--text-dark); }
.inc-item:hover { border-color: #00d4ff; transform: translateY(-3px); box-shadow: 0 15px 30px -10px rgba(0,212,255,.2); }
.inc-item .check {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%;
  background: linear-gradient(135deg, #00d4ff, #0099ff); color: #0a0f2c;
  display: grid; place-items: center; font-weight: 800; font-size: .85rem;
}

/* ==========================================================================
   FINAL CTA
   ========================================================================== */
.final-cta {
  background: #fff; padding: 110px 20px; text-align: center; margin: 0;
}
body.dark .final-cta { background: #0d153a; border-top: 1px solid var(--border-dark); border-bottom: 1px solid var(--border-dark); }
.final-cta-content { max-width: 780px; margin: 0 auto; }
.final-cta h2 { font-size: 2.35rem; line-height: 1.2; margin-bottom: 22px; color: #0a0f2c; }
body.dark .final-cta h2 { color: #fff; }
.final-cta p { font-size: 1.2rem; color: #475569; max-width: 680px; margin: 0 auto 36px; }
body.dark .final-cta p { color: #94a3b8; }
.btn-big {
  display: inline-block; padding: 18px 46px; font-size: 1.15rem; font-weight: 600;
  border-radius: 50px; background: linear-gradient(135deg, #00d4ff, #0099ff);
  color: #0a0f2c; text-decoration: none; transition: all .3s ease;
  box-shadow: 0 12px 30px rgba(0,212,255,.35);
}
.btn-big:hover { transform: translateY(-4px); box-shadow: 0 20px 45px rgba(0,212,255,.5); }

/* SEO CLOSER */
.ads-seo-closer { padding: 60px 0 90px; background: var(--bg-light); }
body.dark .ads-seo-closer { background: var(--bg-dark); }
.ads-seo-closer p { max-width: 900px; margin: 0 auto; text-align: center; font-size: .98rem; line-height: 1.8; }
.ads-seo-closer strong { color: var(--accent2); }
body.dark .ads-seo-closer strong { color: var(--accent); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 991px) {
  .desktop-nav, .nav-right, .header .lang-switch { display: none !important; }
  .mobile-menu-btn { display: block; }
  .header { position: relative; z-index: 100; }
  .mobile-menu { z-index: 999999 !important; }
  .mobile-menu-links { z-index: 1000000 !important; box-shadow: -15px 0 40px rgba(0,0,0,.5); }
  .close-menu-btn { z-index: 1000001 !important; }
  body.menu-open { overflow: hidden; }
  .mobile-theme-btn {
    display: block !important; height: 38px; width: 38px; font-size: 1.2rem;
    margin-left: 8px; position: relative !important; z-index: 999999 !important;
    pointer-events: auto !important;
    border: 1px solid rgba(255,255,255,.3); background: rgba(255,255,255,.1); color: #fff;
  }
  body.light .theme-toggle.mobile-theme-btn {
    border-color: var(--border-light); background: rgba(0,0,0,.08); color: var(--primary);
  }
  .ads-services-grid, .ads-split, .ads-intro-grid { grid-template-columns: 1fr !important; gap: 32px !important; }
  .ads-split.reverse .ads-split-text { order: 0; }
  .ads-metrics { grid-template-columns: repeat(2, 1fr); }
  .includes-grid { grid-template-columns: repeat(2, 1fr); }
  .security-grid { grid-template-columns: 1fr; }

  .mobile-lang-container {
    margin-top: 35px; padding-top: 25px;
    border-top: 1px solid rgba(128,128,128,.15);
    display: flex; justify-content: center;
  }
  .mobile-lang-switch { position: relative; width: 100%; max-width: 200px; }
  .mobile-lang-switch .lang-current {
    display: flex; align-items: center; justify-content: center; gap: 10px;
    padding: 12px 20px; background: rgba(128,128,128,.08);
    border-radius: 10px; font-weight: 600; font-size: 1rem; cursor: pointer;
  }
  body.dark .mobile-lang-switch .lang-current { background: rgba(255,255,255,.06); }
  .mobile-lang-switch .arrow { font-size: .8rem; transition: transform .3s ease; }
  .mobile-lang-switch.active .arrow { transform: rotate(180deg); }
  .mobile-lang-switch .lang-menu {
    display: none; background: rgba(128,128,128,.05); border-radius: 10px;
    margin-top: 8px; overflow: hidden; border: 1px solid rgba(128,128,128,.1);
  }
  body.dark .mobile-lang-switch .lang-menu { background: rgba(255,255,255,.03); }
  .mobile-lang-switch.active .lang-menu { display: block; }
  .mobile-lang-switch .lang-option {
    display: flex; align-items: center; gap: 12px; padding: 14px 20px;
    color: inherit; text-decoration: none; font-size: .95rem; font-weight: 500;
  }
  .mobile-lang-switch .lang-option:not(:last-child) { border-bottom: 1px solid rgba(128,128,128,.08); }
  .mobile-lang-switch .lang-option:hover { background: rgba(128,128,128,.12); }
  .mobile-lang-switch .flag-wrapper { display: inline-flex; align-items: center; width: 20px; }
  .mobile-lang-switch .flag-wrapper img { width: 100%; height: auto; border-radius: 3px; }
}

@media (min-width: 992px) {
  .mobile-menu, .mobile-menu-btn, .mobile-theme-btn { display: none !important; }
}

@media (max-width: 768px) {
  section { padding: 60px 0 !important; }
  .container { width: 94%; padding: 0 15px; }
  .ads-hero { padding: 110px 20px 80px; }
  .ads-hero h1 { font-size: 2.2rem !important; }
  .ads-hero-sub { font-size: 1rem; }
  .ads-hero-stats { gap: 30px; }
  .ads-hero-stats strong { font-size: 1.6rem; }
  .ads-section-head h2, .ads-intro-head h2, .ads-split-text h2, .opt-wrap h2, .synergy-card h2 { font-size: 1.7rem !important; }
  .ads-service-card { padding: 32px 24px; }
  .ads-metrics { grid-template-columns: 1fr !important; }
  .includes-grid { grid-template-columns: 1fr !important; }
  .synergy-card { padding: 40px 24px; }
  .final-cta { padding: 70px 20px; }
  .final-cta h2 { font-size: 1.75rem !important; }
  .footer-grid { grid-template-columns: 1fr 1fr !important; gap: 30px !important; }
  .footer-pro { padding: 60px 20px 40px !important; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
  .btn-primary, .btn-ghost, .btn-big { display: block; width: 100%; max-width: 340px; margin: 0 auto; text-align: center; }
  .ads-hero-ctas { flex-direction: column; align-items: center; }
}

/* Corrección Modo Claro en HERO */
body:not(.dark) .ads-hero {
  background: #ffffff;
  color: #1e2937;
}
body:not(.dark) .ads-hero h1, 
body:not(.dark) .ads-hero h1 .grad,
body:not(.dark) .ads-hero-stats strong {
  color: #1e2937;
  background: none; /* Quitamos el gradiente de texto para mayor legibilidad */
  -webkit-text-fill-color: #1e2937;
}
body:not(.dark) .ads-hero-sub { color: #475569; }
body:not(.dark) .ads-hero-stats span { color: #64748b; }
body:not(.dark) .ads-hero-bg { opacity: 0.05; } /* Fondo muy tenue en claro */

/* Corrección Modo Claro en OPTIMIZATION */
body:not(.dark) .ads-optimization {
  background: #f8fafd;
  color: #1e2937;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}
body:not(.dark) .opt-wrap h2 { color: #1e2937; }
body:not(.dark) .opt-wrap p { color: #475569; }
body:not(.dark) .ads-optimization::before { opacity: 0.1; }

/* Corrección para btn-ghost en modo CLARO */
body:not(.dark) .btn-ghost {
  border: 1.5px solid rgba(10, 15, 44, 0.35); /* Borde oscuro translúcido */
  color: #0a0f2c; /* Texto oscuro */
}

/* Efecto hover para el btn-ghost en modo CLARO */
body:not(.dark) .btn-ghost:hover {
  border-color: #0099ff; /* Borde azul al pasar el mouse */
  background: rgba(0, 153, 255, 0.08); /* Fondo azul muy suave */
  color: #0a0f2c;
}