/* ==========================================================================
   CUBE DESIGN - ARCHITECTURE × DIGITAL × TECHNOLOGY
   Manual de Identidad Corporativa - Hoja de Estilos Oficial
   ========================================================================== */

/* --- Variables de Diseño y Tokens de Marca --- */
:root {
  /* Paleta de Colores Oficial */
  --color-dark: #0D1B2A;
  --color-primary: #2563EB;
  --color-primary-hover: #1D4ED8;
  --color-accent-cyan: #00C2FF;
  --color-cyan-glow: rgba(0, 194, 255, 0.35);
  --color-blue-glow: rgba(37, 99, 235, 0.25);
  --color-light-blue: #E6F1FF;
  --color-bg-secondary: #F2F5F9;
  --color-bg-white: #FFFFFF;
  
  /* Textos y Jerarquía */
  --text-main: #0D1B2A;
  --text-muted: #4B5B6D;
  --text-light: #8E9EA7;
  --text-white: #FFFFFF;
  
  /* Sombras e Iluminación */
  --shadow-sm: 0 2px 8px rgba(13, 27, 42, 0.04);
  --shadow-md: 0 8px 24px rgba(13, 27, 42, 0.08);
  --shadow-lg: 0 20px 40px rgba(13, 27, 42, 0.12);
  --shadow-cyan-hover: 0 12px 30px rgba(0, 194, 255, 0.25);
  --shadow-blue-btn: 0 6px 20px rgba(37, 99, 235, 0.35);
  
  /* Bordes y Radios */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --border-light: 1px solid rgba(13, 27, 42, 0.08);
  --border-cyan: 1px solid #00C2FF;
  
  /* Transiciones */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Layout */
  --container-max: 1240px;
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text-main);
  background-color: var(--color-bg-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

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

/* --- Contenedor General --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Tipografía y Títulos --- */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-dark);
  font-weight: 700;
  line-height: 1.25;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--color-light-blue);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 16px;
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.section-tag .dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-accent-cyan);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px auto;
}

.section-header h2 {
  font-size: 2.35rem;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
  font-weight: 400;
}

/* --- Botones de Acción (CTA) --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--text-white);
  box-shadow: var(--shadow-blue-btn);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.45);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-dark);
  border: 2px solid rgba(13, 27, 42, 0.15);
}

.btn-secondary:hover {
  background-color: var(--color-light-blue);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-outline-white {
  background-color: transparent;
  color: var(--text-white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-white:hover {
  background-color: var(--text-white);
  color: var(--color-dark);
  border-color: var(--text-white);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.875rem;
}

/* ==========================================================================
   HEADER & NAVBAR
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(13, 27, 42, 0.06);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px rgba(13, 27, 42, 0.06);
  height: 72px;
}

.header-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo CUBE DESIGN */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-cube-svg {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  transition: transform var(--transition-normal);
}

.brand-logo:hover .logo-cube-svg {
  transform: scale(1.06);
}

.logo-text-group {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 1.28rem;
  font-weight: 800;
  letter-spacing: 2px;
  line-height: 1.1;
  color: var(--color-dark);
}

.logo-title .design-part {
  color: var(--color-primary);
  font-weight: 700;
}

.logo-tagline {
  font-size: 0.54rem;
  font-weight: 600;
  letter-spacing: 1.8px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 2px;
}

/* Menú de Navegación */
.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 32px;
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--text-main);
  position: relative;
  padding: 8px 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-cyan));
  transition: width var(--transition-normal);
  border-radius: 2px;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.mobile-toggle span {
  display: block;
  height: 2.5px;
  width: 100%;
  background-color: var(--color-dark);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.mobile-toggle.active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero-section {
  position: relative;
  padding-top: calc(var(--header-height) + 50px);
  padding-bottom: 80px;
  background: radial-gradient(circle at 85% 20%, rgba(0, 194, 255, 0.08) 0%, transparent 40%),
              radial-gradient(circle at 15% 70%, rgba(37, 99, 235, 0.05) 0%, transparent 45%),
              linear-gradient(180deg, var(--color-bg-white) 0%, var(--color-bg-secondary) 100%);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 3.15rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -1px;
  color: var(--color-dark);
  margin-bottom: 22px;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  font-weight: 400;
  line-height: 1.7;
  margin-bottom: 34px;
  max-width: 540px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 44px;
}

/* Métricas del Hero */
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 28px;
  border-top: 1px solid rgba(13, 27, 42, 0.08);
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-number {
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1.1;
  display: flex;
  align-items: center;
}

.metric-number .accent {
  color: var(--color-accent-cyan);
}

.metric-label {
  font-size: 0.825rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 4px;
}

/* Visual del Hero */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 24px 20px;
}

.hero-visual-card {
  position: relative;
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: 0 25px 50px rgba(13, 27, 42, 0.12);
  background: var(--color-bg-white);
  border: 1px solid rgba(255, 255, 255, 0.8);
  transition: transform var(--transition-smooth);
}

.hero-img-container {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}

.hero-visual-card:hover {
  transform: translateY(-6px);
}

.hero-main-img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

/* Elementos Flotantes Isométricos */
.floating-badge {
  position: absolute;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  box-shadow: 0 18px 40px rgba(13, 27, 42, 0.16);
  border: 1px solid rgba(0, 194, 255, 0.35);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10;
  animation: floatSlow 5s ease-in-out infinite alternate;
}

.floating-badge.badge-top {
  top: -16px;
  right: -18px;
  animation-delay: 0.4s;
}

.floating-badge.badge-bottom {
  bottom: -16px;
  left: -18px;
  animation-delay: 1.6s;
}

.badge-icon {
  width: 38px;
  height: 38px;
  background: var(--color-light-blue);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.1rem;
}

.badge-text-bold {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.2;
}

.badge-text-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

@keyframes floatSlow {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-10px); }
}

/* ==========================================================================
   CONCEPTO Y PILARES (ESTRUCTURA + TECNOLOGÍA)
   ========================================================================== */
.pillars-section {
  padding: 60px 0;
  background-color: var(--color-bg-white);
  border-bottom: 1px solid rgba(13, 27, 42, 0.05);
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.pillar-card {
  padding: 30px;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pillar-card:hover {
  background: var(--color-bg-white);
  border-color: var(--color-accent-cyan);
  transform: translateY(-4px);
  box-shadow: var(--shadow-cyan-hover);
}

.pillar-icon {
  width: 52px;
  height: 52px;
  background: var(--color-light-blue);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.4rem;
  margin-bottom: 8px;
  transition: background var(--transition-normal), color var(--transition-normal);
}

.pillar-card:hover .pillar-icon {
  background: var(--color-primary);
  color: var(--text-white);
}

.pillar-title {
  font-size: 1.2rem;
  font-weight: 700;
}

.pillar-desc {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   SECCIÓN DE SERVICIOS ("Nuestra Experiencia Digital")
   ========================================================================== */
.services-section {
  padding: 96px 0;
  background-color: var(--color-bg-secondary);
  position: relative;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-card {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-md);
  padding: 40px 30px;
  box-shadow: var(--shadow-sm);
  border: 2px solid transparent;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-cyan));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

/* Hover solicitado estrictamente: borde e ícono se iluminan en cyan #00C2FF */
.service-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent-cyan);
  box-shadow: 0 16px 36px rgba(0, 194, 255, 0.25);
}

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

.service-icon-wrapper {
  width: 70px;
  height: 70px;
  background-color: var(--color-light-blue);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--color-primary);
  font-size: 1.6rem;
  transition: all var(--transition-normal);
  border: 1px solid rgba(37, 99, 235, 0.1);
}

.service-card:hover .service-icon-wrapper {
  background-color: var(--color-dark);
  color: var(--color-accent-cyan);
  box-shadow: 0 0 18px var(--color-cyan-glow);
  transform: scale(1.06);
}

.service-card h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
  color: var(--color-dark);
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
  margin-bottom: 24px;
  flex-grow: 1;
}

.service-features {
  list-style: none;
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-features li {
  font-size: 0.875rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
}

.service-features li svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent-cyan);
  flex-shrink: 0;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.service-card:hover .service-link {
  color: var(--color-accent-cyan);
  gap: 12px;
}

/* ==========================================================================
   SECCIÓN DE PORTAFOLIO ("Proyectos Destacados")
   ========================================================================== */
.portfolio-section {
  padding: 96px 0;
  background-color: var(--color-bg-white);
}

/* Filtros de Portafolio */
.portfolio-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 44px;
}

.filter-btn {
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  background-color: var(--color-bg-secondary);
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.filter-btn:hover {
  color: var(--color-primary);
  background-color: var(--color-light-blue);
}

.filter-btn.active {
  background-color: var(--color-primary);
  color: var(--text-white);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

/* Grid de Portafolio */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px;
}

.portfolio-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(13, 27, 42, 0.08);
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.portfolio-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 45px rgba(13, 27, 42, 0.14);
  border-color: rgba(0, 194, 255, 0.45);
}

.portfolio-img-wrap {
  position: relative;
  width: 100%;
  height: 290px;
  overflow: hidden;
  background: var(--color-bg-secondary);
}

.portfolio-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.portfolio-card:hover .portfolio-img-wrap img {
  transform: scale(1.05);
}

.portfolio-badge-category {
  position: absolute;
  top: 18px;
  left: 18px;
  background: rgba(13, 27, 42, 0.85);
  backdrop-filter: blur(8px);
  color: var(--color-accent-cyan);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.portfolio-info {
  padding: 26px 30px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.portfolio-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.tag-pill {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-primary);
  background: var(--color-light-blue);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
}

.portfolio-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-dark);
}

.portfolio-description {
  font-size: 0.925rem;
  color: var(--text-muted);
  margin-bottom: 18px;
  line-height: 1.55;
}

.portfolio-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid rgba(13, 27, 42, 0.06);
}

.view-project-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

.view-project-btn:hover {
  color: var(--color-accent-cyan);
}

/* ==========================================================================
   PROCESO DE TRABAJO
   ========================================================================== */
.process-section {
  padding: 96px 0;
  background-color: var(--color-bg-secondary);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-step {
  background: var(--color-bg-white);
  padding: 34px 24px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(13, 27, 42, 0.06);
  position: relative;
  transition: transform var(--transition-normal);
}

.process-step:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent-cyan);
}

.step-num {
  font-size: 2.35rem;
  font-weight: 900;
  color: var(--color-light-blue);
  line-height: 1;
  margin-bottom: 16px;
  transition: color var(--transition-normal);
}

.process-step:hover .step-num {
  color: var(--color-primary);
}

.step-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ==========================================================================
   CALL TO ACTION (CTA BANNER)
   ========================================================================== */
.cta-banner-section {
  padding: 80px 0;
  background: var(--color-bg-white);
}

.cta-banner-card {
  background: linear-gradient(135deg, var(--color-dark) 0%, #152A42 100%);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  color: var(--text-white);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-banner-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 194, 255, 0.18) 0%, transparent 60%);
  pointer-events: none;
}

.cta-banner-content h2 {
  color: var(--text-white);
  font-size: 2.2rem;
  margin-bottom: 14px;
}

.cta-banner-content p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.05rem;
  max-width: 580px;
}

.cta-banner-actions {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
  z-index: 2;
}

/* ==========================================================================
   FOOTER
   Fondo oscuro #0D1B2A con textos en #FFFFFF
   ========================================================================== */
.site-footer {
  background-color: var(--color-dark);
  color: var(--text-white);
  padding-top: 80px;
  padding-bottom: 36px;
  position: relative;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr 0.9fr 1.2fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand-desc {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.925rem;
  line-height: 1.65;
  margin-top: 20px;
  margin-bottom: 24px;
  max-width: 320px;
}

/* Logo Footer Monocromático Blanco */
.footer-logo-title {
  color: var(--text-white);
}

.footer-logo-title .design-part {
  color: var(--color-accent-cyan);
}

.footer-logo-tagline {
  color: rgba(255, 255, 255, 0.6);
}

.footer-social-links {
  display: flex;
  gap: 12px;
}

.social-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: all var(--transition-fast);
}

.social-icon-btn:hover {
  background-color: var(--color-primary);
  border-color: var(--color-accent-cyan);
  color: var(--text-white);
  transform: translateY(-3px);
  box-shadow: 0 4px 14px rgba(0, 194, 255, 0.4);
}

.footer-col h4 {
  color: var(--text-white);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 24px;
  position: relative;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 28px;
  height: 2px;
  background-color: var(--color-accent-cyan);
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links-list a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.footer-links-list a:hover {
  color: var(--color-accent-cyan);
  padding-left: 5px;
}

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
}

.contact-item svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent-cyan);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
}

.footer-legal-links {
  display: flex;
  gap: 24px;
}

.footer-legal-links a:hover {
  color: var(--color-accent-cyan);
}

/* ==========================================================================
   MODAL / LIGHTBOX DE PROYECTO & COTIZACIÓN
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(13, 27, 42, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  max-width: 760px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.35);
  position: relative;
  transform: scale(0.95);
  transition: transform var(--transition-smooth);
  border: 1px solid rgba(0, 194, 255, 0.2);
}

.modal-backdrop.active .modal-card {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(13, 27, 42, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-dark);
  font-size: 1.2rem;
  z-index: 10;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--color-dark);
  color: var(--text-white);
}

.modal-body {
  padding: 40px;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-dark);
}

.form-control {
  width: 100%;
  padding: 13px 18px;
  border: 1.5px solid rgba(13, 27, 42, 0.15);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-main);
  background-color: var(--color-bg-secondary);
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: var(--color-bg-white);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Toast de Notificación */
.toast-msg {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--color-dark);
  color: var(--text-white);
  padding: 16px 24px;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent-cyan);
  box-shadow: var(--shadow-lg);
  z-index: 3000;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-normal);
  display: flex;
  align-items: center;
  gap: 12px;
}

.toast-msg.show {
  transform: translateY(0);
  opacity: 1;
}

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.75rem;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 52px;
    text-align: center;
  }
  
  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-cta-group {
    justify-content: center;
  }
  
  .hero-metrics {
    max-width: 500px;
    margin: 0 auto;
  }
  
  .services-grid,
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-top {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 70px;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--color-bg-white);
    flex-direction: column;
    padding: 32px 24px;
    gap: 20px;
    box-shadow: 0 10px 30px rgba(13, 27, 42, 0.1);
    transform: translateY(-150%);
    transition: transform var(--transition-normal);
    border-bottom: 1px solid rgba(13, 27, 42, 0.08);
  }
  
  .nav-menu.active {
    transform: translateY(0);
  }
  
  .header-actions .btn-primary {
    display: none;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .section-header h2 {
    font-size: 1.85rem;
  }
  
  .services-grid,
  .pillars-grid,
  .portfolio-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-banner-card {
    flex-direction: column;
    text-align: center;
    padding: 40px 20px;
  }
  
  .cta-banner-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .cta-banner-actions .btn {
    width: 100%;
  }
  
  .footer-top {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  
  .modal-body {
    padding: 24px;
  }
}