/* ==========================================================================
   INNOVARUM CONSULTING - HOJA DE ESTILOS MAESTRA
   Tecnología: CSS3 Moderno, Mobile-First, Zero Bloat
   Paleta: Blanco (#FFFFFF), Morado Ejecutivo (#581C87, #6B21A8, #7C3AED),
           Plata / Cromo (#71717A, #E2E8F0, #F8FAFC), Negro Obsidiana (#0F172A)
   ========================================================================== */

:root {
  /* Paleta Cromática Primaria */
  --color-bg: #FFFFFF;
  --color-bg-alt: #F8FAFC;
  --color-bg-card: #FFFFFF;
  --color-bg-lavender: #FAF5FF;
  
  /* Púrpuras Ejecutivos */
  --purple-900: #3B0764;
  --purple-800: #581C87;
  --purple-700: #6B21A8;
  --purple-600: #7C3AED;
  --purple-500: #9333EA;
  --purple-100: #F3E8FF;
  --purple-50: #FAF5FF;

  /* Escala de Metales (Plata, Platino, Grafito) */
  --silver-light: #F1F5F9;
  --silver-border: #E2E8F0;
  --silver-text: #64748B;
  --silver-dark: #475569;
  
  /* Textos y Contrastes */
  --text-main: #0F172A;
  --text-muted: #475569;
  --text-white: #FFFFFF;
  --text-purple: #6B21A8;

  /* Sombras y Elevaciones */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.04);
  --shadow-purple: 0 10px 25px -5px rgba(107, 33, 168, 0.25);

  /* Bordes y Transiciones */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);

  /* Tipografía */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Cinzel', Georgia, serif;
}

/* Reset y Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

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

/* Contenedores */
.container {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* Header y Barra de Navegación */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--silver-border);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

/* Menú de Navegación */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link:hover {
  color: var(--purple-700);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--purple-700);
  transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Dropdown de Servicios */
.nav-item-has-children {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: -20px;
  width: 340px;
  background-color: var(--color-bg);
  border: 1px solid var(--silver-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.75rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  list-style: none;
}

.nav-item-has-children:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: block;
  padding: 0.6rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

.dropdown-link:hover {
  background-color: var(--purple-50);
  color: var(--purple-700);
  padding-left: 1.5rem;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--purple-700), var(--purple-800));
  color: var(--text-white);
  box-shadow: var(--shadow-purple);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--purple-600), var(--purple-700));
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -4px rgba(107, 33, 168, 0.35);
}

.btn-secondary {
  background-color: var(--color-bg);
  color: var(--purple-700);
  border-color: var(--purple-700);
}

.btn-secondary:hover {
  background-color: var(--purple-50);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background-color: #25D366;
  color: #FFFFFF;
  box-shadow: 0 6px 18px -2px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:hover {
  background-color: #20BA5A;
  transform: translateY(-2px);
}

/* Menú Hamburguesa Móvil */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  transition: var(--transition);
}

/* Hero Section */
.hero-section {
  padding: 5rem 0 4.5rem;
  background: radial-gradient(circle at 80% 20%, #FAF5FF 0%, #FFFFFF 60%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background-color: var(--purple-100);
  color: var(--purple-800);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-main);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--purple-800), var(--purple-600));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--silver-border);
}

.metric-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--purple-700);
  display: block;
}

.metric-label {
  font-size: 0.85rem;
  color: var(--silver-text);
  font-weight: 500;
}

.hero-card-showcase {
  background: linear-gradient(145deg, #FFFFFF, #FAF5FF);
  border: 1px solid var(--silver-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  position: relative;
}

/* Secciones Generales */
.section {
  padding: 5rem 0;
}

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

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--purple-700);
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.25;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* Grid de Servicios */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.service-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--silver-border);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--purple-700), var(--purple-500));
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--purple-100);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background-color: var(--purple-100);
  color: var(--purple-700);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.service-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.service-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  flex-grow: 1;
  line-height: 1.6;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--purple-700);
}

.service-link:hover {
  gap: 10px;
  color: var(--purple-800);
}

/* Metodología / Pilares */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.feature-item {
  text-align: center;
  padding: 2rem 1.5rem;
  background: #FFFFFF;
  border: 1px solid var(--silver-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.feature-item:hover {
  border-color: var(--purple-100);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-number {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--purple-700);
  background-color: var(--purple-100);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.feature-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.feature-desc {
  font-size: 0.925rem;
  color: var(--text-muted);
}

/* Formulario de Contacto */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: flex-start;
}

.contact-info-card {
  background-color: var(--purple-900);
  color: var(--text-white);
  padding: 3rem 2.5rem;
  border-radius: var(--radius-lg);
  background-image: radial-gradient(circle at bottom right, rgba(147, 51, 234, 0.25), transparent);
}

.contact-info-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.contact-info-desc {
  color: var(--silver-light);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  font-size: 1rem;
}

.contact-form {
  background-color: var(--color-bg);
  border: 1px solid var(--silver-border);
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.1rem;
  font-size: 0.95rem;
  font-family: inherit;
  border: 1px solid var(--silver-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-alt);
  color: var(--text-main);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--purple-600);
  background-color: var(--color-bg);
  box-shadow: 0 0 0 4px var(--purple-100);
}

/* Subpáginas de Servicio (Silos) */
.page-hero {
  padding: 4.5rem 0 3.5rem;
  background: linear-gradient(180deg, var(--purple-50) 0%, #FFFFFF 100%);
  border-bottom: 1px solid var(--silver-border);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--silver-text);
  margin-bottom: 1rem;
}

.breadcrumb a:hover {
  color: var(--purple-700);
}

.service-detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3.5rem;
  margin-top: 3rem;
}

.service-content h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 2rem 0 1rem;
}

.service-content h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--purple-800);
  margin: 1.5rem 0 0.75rem;
}

.service-content p {
  margin-bottom: 1.25rem;
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.service-content ul {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  color: var(--text-muted);
}

.service-content li {
  margin-bottom: 0.6rem;
  line-height: 1.6;
}

.service-sidebar-card {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--silver-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  position: sticky;
  top: 100px;
}

/* Footer Corporativo */
.site-footer {
  background-color: var(--purple-900);
  color: var(--silver-light);
  padding: 4.5rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: #CBD5E1;
  max-width: 320px;
}

.footer-col-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: #CBD5E1;
}

.footer-links a:hover {
  color: var(--text-white);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: #94A3B8;
}

/* Responsividad Mobile-First */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .service-detail-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 70px;
  }
  .logo-img {
    height: 40px;
  }
  .mobile-toggle {
    display: flex;
  }
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem;
    gap: 1.25rem;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: var(--transition);
  }
  .nav-menu.is-active {
    transform: translateX(0);
  }
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: 1rem;
    width: 100%;
  }
  .hero-metrics {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}