/* ==================================================================
   TRACKER 24-7 COLOMBIA — HOJA DE ESTILOS PRINCIPAL
   ------------------------------------------------------------------
   Índice:
   1. Variables / Tokens de diseño
   2. Reset y base
   3. Utilidades y tipografía
   4. Preloader
   5. Cursor personalizado
   6. Header / Navegación
   7. Hero
   8. Servicios
   9. Quiénes somos
   10. FAQ / Acordeón
   11. Planes
   12. Modal
   13. Calculadora
   14. Testimonios
   15. Contacto
   16. Footer
   17. WhatsApp flotante / Volver arriba
   18. Animaciones (scroll reveal, glow, etc.)
   19. Responsive
================================================================== */

/* ==================================================================
   1. VARIABLES / TOKENS DE DISEÑO
================================================================== */
:root {
  /* --- Paleta de color --- */
  --color-blue: #0a6cff;          /* Azul corporativo */
  --color-blue-dark: #071a3b;     /* Azul oscuro / fondo profundo */
  --color-black: #04070c;         /* Negro base */
  --color-white: #f5f8fc;         /* Blanco cálido */
  --color-cyan: #00e5ff;          /* Cian LED — acento tecnológico */
  --color-cyan-soft: rgba(0, 229, 255, 0.35);

  /* --- Gradientes tecnológicos --- */
  --gradient-primary: linear-gradient(135deg, var(--color-blue) 0%, var(--color-cyan) 100%);
  --gradient-dark: linear-gradient(180deg, #050b1a 0%, #071a3b 55%, #04070c 100%);
  --gradient-glow: radial-gradient(circle, rgba(0,229,255,0.35) 0%, rgba(10,108,255,0.08) 45%, transparent 70%);

  /* --- Superficies glassmorphism --- */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-blur: blur(16px);

  /* --- Tipografía --- */
  --font-display: 'Orbitron', sans-serif; /* Uso moderado: logo, titulares, cifras */
  --font-body: 'Manrope', sans-serif;      /* Texto de lectura */

  /* --- Espaciados --- */
  --container-width: 1240px;
  --section-padding: clamp(64px, 8vw, 120px);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;

  /* --- Sombras --- */
  --shadow-elevated: 0 20px 60px rgba(2, 8, 20, 0.55);
  --shadow-glow-cyan: 0 0 30px rgba(0, 229, 255, 0.25);
  --shadow-glow-blue: 0 0 40px rgba(10, 108, 255, 0.35);

  /* --- Transiciones --- */
  --ease-smooth: cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: 0.25s var(--ease-smooth);
  --transition-mid: 0.45s var(--ease-smooth);
  --transition-slow: 0.8s var(--ease-smooth);

  --header-height: 84px;
}

/* ==================================================================
   2. RESET Y BASE
================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-body);
  background: var(--color-black);
  color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; }

/* Foco visible para accesibilidad / navegación con teclado */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ==================================================================
   3. UTILIDADES Y TIPOGRAFÍA
================================================================== */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  letter-spacing: 0.3px;
  color: var(--color-white);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 2.4px;
  text-transform: uppercase;
  color: var(--color-cyan);
  margin-bottom: 14px;
}

.eyebrow::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 10px 2px var(--color-cyan-soft);
}

.section-title {
  font-size: clamp(1.9rem, 3.4vw, 2.75rem);
  margin-bottom: 18px;
}

.section-desc {
  max-width: 620px;
  color: rgba(245, 248, 252, 0.68);
  font-size: 1.02rem;
}

.section-head { text-align: center; margin-inline: auto; margin-bottom: 56px; }
.section-head .section-desc { margin-inline: auto; }

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* --- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 100px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient-primary);
  color: var(--color-black);
  box-shadow: var(--shadow-glow-blue);
}
.btn--primary:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0, 229, 255, 0.45); }

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255, 255, 255, 0.35);
}
.btn--outline:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-3px);
}

.btn--cta {
  background: var(--color-cyan);
  color: var(--color-black);
  padding: 12px 24px;
  font-size: 0.78rem;
}
.btn--cta:hover { box-shadow: 0 0 25px rgba(0, 229, 255, 0.6); transform: translateY(-2px); }

/* ==================================================================
   4. PRELOADER
================================================================== */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--color-black);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  transition: opacity 0.6s var(--ease-smooth), visibility 0.6s var(--ease-smooth);
}
.preloader.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.preloader__radar { position: relative; width: 90px; height: 90px; }
.preloader__ring {
  position: absolute; inset: 0;
  border: 1.5px solid var(--color-cyan);
  border-radius: 50%;
  opacity: 0;
  animation: radarPulse 2.2s ease-out infinite;
}
.preloader__ring:nth-child(2) { animation-delay: 0.7s; }
.preloader__dot {
  position: absolute; top: 50%; left: 50%;
  width: 10px; height: 10px;
  margin: -5px 0 0 -5px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 20px 4px var(--color-cyan-soft);
}
@keyframes radarPulse {
  0% { transform: scale(0.2); opacity: 0.9; }
  100% { transform: scale(3.2); opacity: 0; }
}
.preloader__text {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 1.5px;
  color: rgba(245, 248, 252, 0.7);
  text-transform: uppercase;
}
.dots span { animation: dotBlink 1.4s infinite; }
.dots span:nth-child(2) { animation-delay: 0.2s; }
.dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dotBlink { 0%, 100% { opacity: 0.2; } 50% { opacity: 1; } }

/* ==================================================================
   5. CURSOR PERSONALIZADO
================================================================== */
.custom-cursor {
  position: fixed;
  width: 22px; height: 22px;
  border: 1.5px solid var(--color-cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s, border-color 0.2s;
  mix-blend-mode: difference;
  display: none;
}
@media (hover: hover) and (pointer: fine) {
  .custom-cursor { display: block; }
}
.custom-cursor.is-active { background: var(--color-cyan-soft); width: 40px; height: 40px; }

/* ==================================================================
   6. HEADER / NAVEGACIÓN
================================================================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background var(--transition-mid), box-shadow var(--transition-mid), height var(--transition-mid);
}
.header.is-scrolled {
  background: rgba(4, 7, 12, 0.75);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: 0 8px 30px rgba(0,0,0,0.35);
  height: 72px;
  border-bottom: 1px solid var(--glass-border);
}

.nav { display: flex; align-items: center; justify-content: space-between; width: 100%; position: relative; z-index: 2;}
.nav__logo-img { height: 38px; width: auto; }

.nav__menu {
  display: flex;
  align-items: center;
  gap: 30px;
}
.nav__link {
  font-size: 0.92rem;
  font-weight: 600;
  color: rgba(245,248,252,0.82);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--color-cyan);
  transition: width var(--transition-fast);
  box-shadow: 0 0 8px var(--color-cyan);
}
.nav__link:hover { color: var(--color-white); }
.nav__link:hover::after { width: 100%; }

.nav__cta-item { margin-left: 6px; }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  z-index: 3;
}
.nav__toggle-bar {
  height: 2px;
  width: 100%;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast), background var(--transition-fast);
}
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); background: var(--color-cyan); }
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); background: var(--color-cyan); }

.nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 5, 12, 0.6);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-mid), visibility var(--transition-mid);
  z-index: 1;
}
.nav__overlay.is-active { opacity: 1; visibility: visible; }

/* ==================================================================
   7. HERO
================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  overflow: hidden;
  background: var(--gradient-dark);
}

.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__particles { position: absolute; inset: 0; width: 100%; height: 100%; }

.hero__grid-lines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse at 50% 30%, black 10%, transparent 70%);
}

.hero__glow {
  position: absolute;
  width: 640px; height: 640px;
  border-radius: 50%;
  background: var(--gradient-glow);
  filter: blur(10px);
  animation: floatGlow 10s ease-in-out infinite;
}
.hero__glow--1 { top: -180px; left: -160px; }
.hero__glow--2 { bottom: -220px; right: -180px; animation-delay: 3s; }
@keyframes floatGlow {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(30px, -20px) scale(1.08); }
}

.hero__map {
  position: absolute;
  right: -4%;
  top: 50%;
  transform: translateY(-50%);
  width: min(46vw, 620px);
  opacity: 0.5;
  filter: drop-shadow(0 0 40px rgba(0,229,255,0.25));
}
.hero__map-img { width: 100%; }
.hero__radar-sweep {
  position: absolute;
  top: 50%; left: 50%;
  width: 100%; height: 100%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(0,229,255,0.35), transparent 30%);
  animation: sweep 4s linear infinite;
  mix-blend-mode: screen;
}
@keyframes sweep { to { transform: translate(-50%, -50%) rotate(360deg); } }

.hero__ping {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 12px 3px var(--color-cyan-soft);
}
.hero__ping::before {
  content: '';
  position: absolute; inset: -8px;
  border-radius: 50%;
  border: 1.5px solid var(--color-cyan);
  animation: pingPulse 2.4s ease-out infinite;
}
.hero__ping--1 { top: 30%; left: 35%; }
.hero__ping--2 { top: 55%; left: 60%; animation-delay: 0.6s; }
.hero__ping--3 { top: 68%; left: 30%; animation-delay: 1.2s; }
.hero__ping--4 { top: 22%; left: 62%; animation-delay: 1.8s; }
@keyframes pingPulse {
  0% { transform: scale(0.3); opacity: 1; }
  100% { transform: scale(2.6); opacity: 0; }
}

.hero__content { position: relative; z-index: 1; max-width: 700px; padding-block: 60px; }

.hero__title {
  font-size: clamp(2.4rem, 5.4vw, 4.2rem);
  margin-bottom: 22px;
}
.hero__subtitle {
  font-size: 1.1rem;
  color: rgba(245,248,252,0.72);
  max-width: 560px;
  margin-bottom: 36px;
}
.hero__actions { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 56px; }

.hero__stats {
  display: flex;
  gap: 42px;
  flex-wrap: wrap;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.hero__stat { display: flex; flex-direction: column; gap: 4px; }
.hero__stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__stat span { font-size: 0.82rem; color: rgba(245,248,252,0.6); }

.hero__scroll {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 20px;
  z-index: 1;
}
.hero__scroll span {
  position: absolute;
  top: 8px; left: 50%;
  width: 5px; height: 5px;
  margin-left: -2.5px;
  border-radius: 50%;
  background: var(--color-cyan);
  animation: scrollDot 1.8s ease-in-out infinite;
}
@keyframes scrollDot {
  0% { top: 8px; opacity: 1; }
  100% { top: 24px; opacity: 0; }
}

/* ==================================================================
   8. SERVICIOS
================================================================== */
.services { padding: var(--section-padding) 0; position: relative; }

.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}

.service-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: transform var(--transition-mid), box-shadow var(--transition-mid), border-color var(--transition-mid);
}
.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-cyan-soft);
  box-shadow: var(--shadow-glow-cyan);
}
.service-card__img { aspect-ratio: 4 / 3; overflow: hidden; }
.service-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
.service-card:hover .service-card__img img { transform: scale(1.08); }
.service-card__body { padding: 22px 22px 26px; }
.service-card__body h3 { font-size: 1.15rem; margin-bottom: 8px; }
.service-card__body p { font-size: 0.9rem; color: rgba(245,248,252,0.64); margin-bottom: 16px; }

/* Botón pequeño de adquisición rápida por WhatsApp dentro de cada tarjeta */
.service-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--color-cyan);
  border: 1.5px solid var(--color-cyan-soft);
  border-radius: 100px;
  background: rgba(0, 229, 255, 0.06);
  transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.service-card__cta::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #25d366;
  box-shadow: 0 0 6px 1px rgba(37,211,102,0.6);
}
.service-card__cta:hover {
  background: var(--gradient-primary);
  color: var(--color-black);
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-2px);
}
.service-card__cta:hover::before { background: var(--color-black); box-shadow: none; }

/* ==================================================================
   9. QUIÉNES SOMOS
================================================================== */
.about { padding: var(--section-padding) 0; background: linear-gradient(180deg, transparent, rgba(10,108,255,0.05), transparent); }
.about__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 70px;
  align-items: center;
}
.about__media { position: relative; }
.about__media img {
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-elevated);
}
.about__badge {
  position: absolute;
  bottom: -24px; right: -20px;
  background: var(--gradient-dark);
  border: 1px solid var(--color-cyan-soft);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  max-width: 220px;
  box-shadow: var(--shadow-glow-cyan);
}
.about__badge strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-cyan);
}
.about__badge span { font-size: 0.78rem; color: rgba(245,248,252,0.7); }

.about__content p { color: rgba(245,248,252,0.72); margin-bottom: 24px; }
.about__list { display: flex; flex-direction: column; gap: 12px; }
.about__list li { display: flex; align-items: center; gap: 10px; font-size: 0.96rem; }
.about__check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: var(--color-black);
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* ==================================================================
   10. FAQ / ACORDEÓN
================================================================== */
.faq { padding: var(--section-padding) 0; }
.faq__list { max-width: 800px; margin-inline: auto; display: flex; flex-direction: column; gap: 14px; }
.faq__item {
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}
.faq__item:has(.faq__question[aria-expanded="true"]) { border-color: var(--color-cyan-soft); }

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  text-align: left;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
}
.faq__icon { position: relative; width: 18px; height: 18px; flex-shrink: 0; }
.faq__icon::before, .faq__icon::after {
  content: '';
  position: absolute;
  background: var(--color-cyan);
  border-radius: 2px;
  transition: transform var(--transition-fast);
}
.faq__icon::before { width: 100%; height: 2px; top: 50%; left: 0; transform: translateY(-50%); }
.faq__icon::after { width: 2px; height: 100%; left: 50%; top: 0; transform: translateX(-50%); }
.faq__question[aria-expanded="true"] .faq__icon::after { transform: translateX(-50%) rotate(90deg); opacity: 0; }

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-mid), padding var(--transition-mid);
  padding: 0 24px;
}
.faq__answer p { color: rgba(245,248,252,0.66); padding-bottom: 20px; font-size: 0.94rem; }

/* ==================================================================
   11. PLANES
================================================================== */
.plans { padding: var(--section-padding) 0; }

.plans__toggle {
  display: inline-flex;
  margin-top: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  padding: 5px;
}
.plans__toggle-btn {
  padding: 10px 26px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.6px;
  color: rgba(245,248,252,0.6);
  border-radius: 100px;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.plans__toggle-btn.is-active { background: var(--gradient-primary); color: var(--color-black); }

.plans__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.plan-card {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: transform var(--transition-mid), box-shadow var(--transition-mid), border-color var(--transition-mid);
  display: flex;
  flex-direction: column;
}
.plan-card:hover { transform: translateY(-6px); border-color: var(--color-cyan-soft); box-shadow: var(--shadow-glow-cyan); }

.plan-card--featured {
  border-color: var(--color-cyan);
  box-shadow: var(--shadow-glow-cyan);
  background: linear-gradient(180deg, rgba(0,229,255,0.08), var(--glass-bg));
}
.plan-card__tag {
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: var(--color-black);
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 8px 18px;
  border-radius: 100px;
  box-shadow: var(--shadow-glow-blue);
}

.plan-card__head { margin-bottom: 24px; }
.plan-card__head h3 { font-size: 1.3rem; margin-bottom: 12px; }
.plan-card__price { display: flex; align-items: baseline; gap: 4px; }
.plan-card__currency { font-size: 1.1rem; color: var(--color-cyan); }
.plan-card__amount {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 800;
}
.plan-card__period { font-size: 0.82rem; color: rgba(245,248,252,0.55); margin-left: 4px; }

.plan-card__features { display: flex; flex-direction: column; gap: 12px; margin-bottom: 30px; flex-grow: 1; }
.plan-card__features li {
  font-size: 0.92rem;
  color: rgba(245,248,252,0.75);
  padding-left: 24px;
  position: relative;
}
.plan-card__features li::before {
  content: '✓';
  position: absolute;
  left: 0; top: 0;
  color: var(--color-cyan);
  font-weight: 700;
}
.plan-card__cta { width: 100%; }

/* ==================================================================
   12. MODAL
================================================================== */
.modal { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: center; justify-content: center; visibility: hidden; opacity: 0; transition: opacity var(--transition-mid), visibility var(--transition-mid); padding: 24px; }
.modal.is-open { visibility: visible; opacity: 1; }
.modal__overlay { position: absolute; inset: 0; background: rgba(2,5,12,0.75); backdrop-filter: blur(6px); }

.modal__dialog {
  position: relative;
  width: 100%;
  max-width: 560px;
  max-height: 88vh;
  overflow-y: auto;
  background: var(--gradient-dark);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 42px 36px;
  transform: translateY(30px) scale(0.97);
  transition: transform var(--transition-mid);
  box-shadow: var(--shadow-elevated);
}
.modal.is-open .modal__dialog { transform: translateY(0) scale(1); }

.modal__close {
  position: absolute;
  top: 18px; right: 20px;
  font-size: 1.6rem;
  line-height: 1;
  color: rgba(245,248,252,0.6);
  transition: color var(--transition-fast), transform var(--transition-fast);
}
.modal__close:hover { color: var(--color-cyan); transform: rotate(90deg); }

.modal__title { font-size: 1.4rem; margin-bottom: 8px; }
.modal__subtitle { color: rgba(245,248,252,0.6); font-size: 0.9rem; margin-bottom: 26px; }

.form-group { margin-bottom: 18px; }
.form-group label, .form-group__label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: rgba(245,248,252,0.85);
}
.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--color-white);
  font-size: 0.92rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-cyan);
  box-shadow: 0 0 0 3px rgba(0,229,255,0.15);
}
.form-group select option { background: var(--color-blue-dark); }
.form-group textarea { resize: vertical; }

.form-group input[type="range"] {
  width: 100%;
  accent-color: var(--color-cyan);
}

.radio-group { display: flex; gap: 10px; flex-wrap: wrap; }
.radio-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.radio-option:has(input:checked) { border-color: var(--color-cyan); background: rgba(0,229,255,0.08); color: var(--color-cyan); }
.radio-option input { accent-color: var(--color-cyan); }

.modal__note { font-size: 0.78rem; color: rgba(245,248,252,0.45); margin-bottom: 20px; }

.modal__price-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0,229,255,0.06);
  border: 1px solid var(--color-cyan-soft);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-bottom: 22px;
}
.modal__price-box span { font-size: 0.85rem; color: rgba(245,248,252,0.7); }
.modal__price-box strong { font-family: var(--font-display); font-size: 1.3rem; color: var(--color-cyan); }

.modal__submit { width: 100%; }

/* ==================================================================
   13. CALCULADORA
================================================================== */
.calculator { padding: var(--section-padding) 0; }
.calculator__box {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 0;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.calculator__form { padding: 44px; }
.calculator__form .form-group:last-child { margin-bottom: 0; }

.calculator__result {
  background: var(--gradient-dark);
  padding: 44px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  border-left: 1px solid var(--glass-border);
}
.calculator__result-label { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 1.5px; color: rgba(245,248,252,0.55); margin-bottom: 10px; }
.calculator__old-price { font-size: 1.1rem; color: rgba(245,248,252,0.4); text-decoration: line-through; margin-bottom: 6px; }
.calculator__discount-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-cyan);
  background: rgba(0,229,255,0.1);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 14px;
}
.calculator__final-price {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 26px;
}
.calculator__cta { width: 100%; }

/* ==================================================================
   14. TESTIMONIOS
================================================================== */
.testimonials { padding: var(--section-padding) 0; overflow: hidden; }
.testimonials__track-wrapper {
  width: 100%;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}
.testimonials__track {
  display: flex;
  gap: 24px;
  width: max-content;
  animation: scrollTestimonials 32s linear infinite;
}
.testimonials__track:hover { animation-play-state: paused; }
@keyframes scrollTestimonials {
  from { transform: translateX(-50%); }
  to { transform: translateX(0); }
}

.testimonial-card {
  width: 340px;
  flex-shrink: 0;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 26px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.testimonial-card__header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.testimonial-card__header img { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; border: 2px solid var(--color-cyan-soft); }
.testimonial-card__header strong { display: block; font-size: 0.92rem; }
.stars { color: #ffc94a; font-size: 0.8rem; letter-spacing: 1px; }
.testimonial-card p { font-size: 0.9rem; color: rgba(245,248,252,0.7); }

/* ==================================================================
   15. CONTACTO
================================================================== */
.contact { padding: var(--section-padding) 0; }
.contact__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: start; }
.contact__info p { color: rgba(245,248,252,0.68); margin-bottom: 30px; max-width: 460px; }
.contact__list { display: flex; flex-direction: column; gap: 22px; }
.contact__list li { display: flex; align-items: center; gap: 16px; }
.contact__icon {
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  flex-shrink: 0;
}
.contact__list strong { display: block; font-size: 0.82rem; color: rgba(245,248,252,0.55); margin-bottom: 2px; }
.contact__list a { font-size: 1rem; font-weight: 600; transition: color var(--transition-fast); }
.contact__list a:hover { color: var(--color-cyan); }

.contact__form {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.contact__submit { width: 100%; margin-top: 6px; }

/* ==================================================================
   16. FOOTER
================================================================== */
.footer { background: #020509; padding-top: 70px; border-top: 1px solid var(--glass-border); }
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 50px;
  padding-bottom: 50px;
}
.footer__logo { margin-bottom: 16px; }
.footer__brand p { color: rgba(245,248,252,0.55); font-size: 0.9rem; max-width: 320px; }
.footer__sitemap h4, .footer__social h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 18px;
  color: var(--color-cyan);
}
.footer__sitemap ul { display: flex; flex-direction: column; gap: 12px; }
.footer__sitemap a { color: rgba(245,248,252,0.65); font-size: 0.92rem; transition: color var(--transition-fast); }
.footer__sitemap a:hover { color: var(--color-cyan); }

.footer__social-icons { display: flex; gap: 12px; }
.social-icon {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  transition: transform var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  color: rgba(245,248,252,0.75);
}
.social-icon:hover { transform: translateY(-4px); border-color: var(--color-cyan); color: var(--color-cyan); }

.footer__bottom {
  border-top: 1px solid var(--glass-border);
  padding: 22px 0;
  text-align: center;
}
.footer__bottom p { font-size: 0.82rem; color: rgba(245,248,252,0.45); }

/* ==================================================================
   17. WHATSAPP FLOTANTE / VOLVER ARRIBA
================================================================== */
.whatsapp-float {
  position: fixed;
  bottom: 26px; left: 26px;
  z-index: 800;
  width: 60px; height: 60px;
  display: flex; align-items: center; justify-content: center;
  background: #25d366;
  color: #04070c;
  border-radius: 50%;
  box-shadow: 0 8px 30px rgba(37,211,102,0.45);
  animation: whatsappPulse 2.6s ease-in-out infinite;
  transition: transform var(--transition-fast);
}
.whatsapp-float:hover { transform: scale(1.1); }
@keyframes whatsappPulse {
  0%, 100% { box-shadow: 0 8px 30px rgba(37,211,102,0.45); }
  50% { box-shadow: 0 8px 30px rgba(37,211,102,0.75), 0 0 0 10px rgba(37,211,102,0.08); }
}

.back-to-top {
  position: fixed;
  bottom: 26px; right: 26px;
  z-index: 800;
  width: 50px; height: 50px;
  display: flex; align-items: center; justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: 50%;
  color: var(--color-white);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { border-color: var(--color-cyan); color: var(--color-cyan); }

/* ==================================================================
   18. ANIMACIONES DE SCROLL REVEAL
================================================================== */
.reveal-up {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}
.reveal-up.is-visible { opacity: 1; transform: translateY(0); }

/* Retraso escalonado para elementos hijos dentro de un grid */
.services__grid .service-card:nth-child(1) { transition-delay: 0.05s; }
.services__grid .service-card:nth-child(2) { transition-delay: 0.1s; }
.services__grid .service-card:nth-child(3) { transition-delay: 0.15s; }
.services__grid .service-card:nth-child(4) { transition-delay: 0.2s; }
.services__grid .service-card:nth-child(5) { transition-delay: 0.25s; }
.services__grid .service-card:nth-child(6) { transition-delay: 0.3s; }
.services__grid .service-card:nth-child(7) { transition-delay: 0.35s; }
.services__grid .service-card:nth-child(8) { transition-delay: 0.4s; }

/* ==================================================================
   19. RESPONSIVE
================================================================== */
@media (max-width: 1080px) {
  .services__grid { grid-template-columns: repeat(3, 1fr); }
  .about__grid { gap: 40px; }
}

@media (max-width: 960px) {
  .nav__menu {
    position: fixed;
    top: 0; right: -100%;
    width: min(80vw, 340px);
    height: 100vh;
    background: var(--gradient-dark);
    border-left: 1px solid var(--glass-border);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 26px;
    padding: 40px;
    transition: right var(--transition-mid);
    z-index: 2;
  }
  .nav__menu.is-open { right: 0; }
  .nav__cta-item { margin-left: 0; margin-top: 10px; }
  .nav__toggle { display: flex; }

  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .about__grid { grid-template-columns: 1fr; }
  .about__media { max-width: 420px; margin-inline: auto; }
  .plans__grid { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
  .calculator__box { grid-template-columns: 1fr; }
  .calculator__result { border-left: none; border-top: 1px solid var(--glass-border); }
  .contact__grid { grid-template-columns: 1fr; gap: 40px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .hero__map { display: none; }
}

@media (max-width: 640px) {
  :root { --section-padding: 64px; }
  .services__grid { grid-template-columns: 1fr; }
  .hero__stats { gap: 26px; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .footer__grid { grid-template-columns: 1fr; }
  .whatsapp-float { width: 54px; height: 54px; bottom: 18px; left: 18px; }
  .back-to-top { width: 44px; height: 44px; bottom: 18px; right: 18px; }
  .testimonial-card { width: 280px; }
}