/*
Theme Name: Agencia Digital Pro
Theme URI: https://agenciadigital.com
Author: Agencia Digital
Author URI: https://agenciadigital.com
Description: Theme profesional de alto rendimiento para agencia de desarrollo web con animaciones avanzadas tipo Framer/Webflow
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: agencia-digital
Tags: custom-background, custom-logo, custom-menu, featured-images, threaded-comments, translation-ready, block-styles, wide-blocks, full-site-editing
*/

/* ============================================
   CSS VARIABLES - THEME TOKENS
   ============================================ */

:root {
  /* Typography Scale - Modular Scale 1.25 */
  --font-display: 'Instrument Serif', 'Playfair Display', Georgia, serif;
  --font-body: 'Geist', 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Font Sizes - Fluid Typography */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.25rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.5rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1.75rem + 3.75vw, 5rem);
  --text-4xl: clamp(3rem, 2rem + 5vw, 6.5rem);
  
  /* Spacing Scale */
  --space-xs: clamp(0.5rem, 0.45rem + 0.25vw, 0.75rem);
  --space-sm: clamp(0.75rem, 0.7rem + 0.25vw, 1rem);
  --space-md: clamp(1rem, 0.9rem + 0.5vw, 1.5rem);
  --space-lg: clamp(1.5rem, 1.25rem + 1.25vw, 2.5rem);
  --space-xl: clamp(2rem, 1.5rem + 2.5vw, 4rem);
  --space-2xl: clamp(3rem, 2rem + 5vw, 6rem);
  --space-3xl: clamp(4rem, 3rem + 5vw, 8rem);
  
  /* Layout */
  --container-width: 1400px;
  --container-padding: clamp(1.5rem, 5vw, 4rem);
  --section-spacing: clamp(4rem, 10vw, 10rem);
  
  /* Animation Timings */
  --duration-fast: 200ms;
  --duration-base: 350ms;
  --duration-slow: 600ms;
  --duration-slower: 900ms;
  
  /* Easing Curves */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.7, 0, 0.84, 0);
  --ease-in-out: cubic-bezier(0.87, 0, 0.13, 1);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-elastic: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Light Theme Colors */
  --bg-primary: #FAFAFA;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #F5F5F5;
  --bg-elevated: #FFFFFF;
  
  --text-primary: #0A0A0A;
  --text-secondary: #525252;
  --text-tertiary: #737373;
  --text-inverse: #FAFAFA;
  
  --accent-primary: #2563EB;
  --accent-primary-hover: #1D4ED8;
  --accent-secondary: #7C3AED;
  --accent-gradient: linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
  
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-medium: rgba(0, 0, 0, 0.12);
  --border-strong: rgba(0, 0, 0, 0.2);
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
  
  /* Grid Animation */
  --grid-color: rgba(37, 99, 235, 0.08);
  --grid-size: 40px;
}

[data-theme="dark"] {
  --bg-primary: #0A0A0A;
  --bg-secondary: #141414;
  --bg-tertiary: #1A1A1A;
  --bg-elevated: #1F1F1F;
  
  --text-primary: #FAFAFA;
  --text-secondary: #A3A3A3;
  --text-tertiary: #737373;
  --text-inverse: #0A0A0A;
  
  --accent-primary: #3B82F6;
  --accent-primary-hover: #60A5FA;
  --accent-secondary: #8B5CF6;
  --accent-gradient: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 100%);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.12);
  --border-strong: rgba(255, 255, 255, 0.2);
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
  
  --glass-bg: rgba(20, 20, 20, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  
  --grid-color: rgba(59, 130, 246, 0.06);
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
  transition: background-color var(--duration-slow) var(--ease-out),
              color var(--duration-slow) var(--ease-out);
}

/* Smooth scroll with offset for fixed header */
html.smooth-scroll {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  html {
    scroll-behavior: auto;
  }
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
  margin-bottom: 1.5em;
  max-width: 70ch;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color var(--duration-base) var(--ease-out);
  position: relative;
}

a:hover {
  color: var(--accent-primary-hover);
}

/* Animated underline on hover */
.link-animated {
  position: relative;
  overflow: hidden;
}

.link-animated::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: translateX(-100%);
  transition: transform var(--duration-base) var(--ease-out);
}

.link-animated:hover::after {
  transform: translateX(0);
}

/* ============================================
   LAYOUT UTILITIES
   ============================================ */

.container {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding-top: var(--section-spacing);
  padding-bottom: var(--section-spacing);
  position: relative;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-lg) 0;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background-color: var(--glass-bg);
  border-bottom: 1px solid var(--glass-border);
  transition: padding var(--duration-base) var(--ease-out),
              background-color var(--duration-base) var(--ease-out);
}

.site-header.scrolled {
  padding: var(--space-md) 0;
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.site-logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  transition: transform var(--duration-base) var(--ease-out);
}

.site-logo:hover {
  transform: scale(1.02);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--space-lg);
  margin: 0;
  padding: 0;
}

.nav-menu a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--duration-base) var(--ease-out);
}

.nav-menu a::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width var(--duration-base) var(--ease-out);
}

.nav-menu a:hover::before,
.nav-menu a.active::before {
  width: 100%;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--text-primary);
}

/* Theme Toggle */
.theme-toggle {
  position: relative;
  width: 48px;
  height: 48px;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: background-color var(--duration-base) var(--ease-out);
}

.theme-toggle:hover {
  background-color: var(--bg-tertiary);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  color: var(--text-primary);
  transition: transform var(--duration-slow) var(--ease-out);
}

.theme-toggle:hover svg {
  transform: rotate(20deg);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--duration-base) var(--ease-out);
  border-radius: var(--radius-full);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }
  
  .theme-toggle {
    display: flex; /* Visible en mobile */
  }
  
  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background-color: var(--bg-elevated);
    padding: var(--space-3xl) var(--space-xl);
    transform: translateX(100%);
    transition: transform var(--duration-slow) var(--ease-in-out);
    box-shadow: var(--shadow-xl);
  }
  
  .main-nav.active {
    transform: translateX(0);
  }
  
  .nav-menu {
    flex-direction: column;
    gap: var(--space-lg);
  }
  
  .nav-menu a {
    font-size: var(--text-lg);
  }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--space-3xl) 0;
  background: var(--bg-primary);
}

/* Animated Grid Background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  background-position: center center;
  animation: gridMove 20s linear infinite;
  opacity: 0.6;
  z-index: 0;
}

@keyframes gridMove {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(var(--grid-size), var(--grid-size));
  }
}

/* Gradient Orbs */
.hero::after {
  content: '';
  position: absolute;
  top: 20%;
  right: 10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(60px);
  animation: float 8s ease-in-out infinite;
  z-index: 0;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-30px, -30px) scale(1.1);
  }
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.hero h1 {
  font-size: var(--text-4xl);
  line-height: 1.1;
  margin-bottom: var(--space-lg);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 1s var(--ease-out) backwards;
  animation-delay: 0.2s;
}

.hero p {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  margin: 0 auto var(--space-2xl);
  max-width: 700px;
  animation: fadeInUp 1s var(--ease-out) backwards;
  animation-delay: 0.4s;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Parallax scroll effect */
.hero-parallax {
  transform: translateY(calc(var(--hero-shift, 0px) * -1));
  transition: transform 0.1s linear;
}

/* ============================================
   CAPABILITIES SECTION
   ============================================ */

.capabilities-section {
  position: relative;
  padding: var(--section-spacing) 0;
  background: var(--bg-secondary);
}

.capabilities-title {
  text-align: center;
  margin-bottom: var(--space-3xl);
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
}

.capabilities-title::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
}

.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

/* Service Cards with Glassmorphism */
.service-card {
  position: relative;
  padding: var(--space-xl);
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--glass-shadow);
  transition: all var(--duration-slow) var(--ease-out);
  opacity: 1;
  transform: translateY(0);
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--accent-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-slow) var(--ease-out);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 
    var(--glass-shadow),
    0 20px 40px -10px rgba(37, 99, 235, 0.2);
}

.service-card .icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--space-lg);
  color: var(--accent-primary);
  transition: all var(--duration-slow) var(--ease-out);
}

.service-card:hover .icon {
  transform: scale(1.1) rotate(5deg);
  color: var(--accent-secondary);
}

.service-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.service-card p {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* Magnetic hover effect */
.service-card {
  --mouse-x: 0;
  --mouse-y: 0;
}

@media (hover: hover) {
  .service-card:hover {
    transform: 
      translateY(-8px)
      translateX(calc(var(--mouse-x) * 4px))
      translateY(calc(var(--mouse-y) * 4px));
  }
}

/* ============================================
   PROCESS SECTION
   ============================================ */

.process-section {
  padding: var(--section-spacing) 0;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.process-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-3xl);
}

.process-header h2 {
  margin-bottom: var(--space-lg);
}

.process-header p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin: 0 auto;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  position: relative;
}

/* Connecting lines between steps (desktop only) */
@media (min-width: 900px) {
  .process-grid::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(
      90deg,
      var(--accent-primary) 0%,
      var(--accent-secondary) 100%
    );
    transform: translateY(-50%);
    opacity: 0.2;
    z-index: 0;
  }
}

.process-step {
  position: relative;
  padding: var(--space-xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--duration-slow) var(--ease-out);
  opacity: 1;
  transform: translateY(0) scale(1);
  z-index: 10;
}

.process-step:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px) scale(1.02);
}

.step-number {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--accent-primary);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
  letter-spacing: 0.1em;
}

.process-step h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.process-step p {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* ============================================
   BUILD SECTION
   ============================================ */

.build-section {
  padding: var(--section-spacing) 0;
  background: var(--bg-secondary);
}

.build-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-3xl);
}

.build-header h2 {
  margin-bottom: var(--space-lg);
}

.build-header p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  margin: 0 auto;
}

.build-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.build-card {
  position: relative;
  padding: var(--space-xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: all var(--duration-slow) var(--ease-out);
  opacity: 1;
  transform: translateY(0);
  overflow: hidden;
}

.build-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out);
  z-index: 0;
}

.build-card.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.build-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
}

.build-card:hover::before {
  opacity: 0.05;
}

.build-card h3,
.build-card p {
  position: relative;
  z-index: 1;
}

.build-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-md);
  color: var(--text-primary);
  transition: color var(--duration-base) var(--ease-out);
}

.build-card:hover h3 {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.build-card p {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* ============================================
   PORTFOLIO SECTION
   ============================================ */

.portfolio-section {
  padding: var(--section-spacing) 0;
  background: var(--bg-primary);
}

.portfolio-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--space-xl);
}

.portfolio-item {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-xl);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--duration-slow) var(--ease-out);
}

.portfolio-item:hover {
  transform: scale(1.02);
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slower) var(--ease-out);
}

.portfolio-item:hover img {
  transform: scale(1.1);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.85) 0%,
    rgba(0, 0, 0, 0.5) 40%,
    rgba(0, 0, 0, 0.2) 70%,
    transparent 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-xl);
  opacity: 1;
  transition: opacity var(--duration-slow) var(--ease-out);
}

.portfolio-item:hover .portfolio-overlay {
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.9) 0%,
    rgba(0, 0, 0, 0.6) 50%,
    rgba(0, 0, 0, 0.3) 80%,
    transparent 100%
  );
}

.portfolio-overlay h3 {
  color: white;
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
  transform: translateY(0);
  transition: transform var(--duration-slow) var(--ease-out);
}

.portfolio-item:hover .portfolio-overlay h3 {
  transform: translateY(-5px);
}

.portfolio-overlay p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--text-sm);
  margin: 0;
  transform: translateY(0);
  transition: transform var(--duration-slow) var(--ease-out);
  transition-delay: 0s;
}

.portfolio-item:hover .portfolio-overlay p {
  transform: translateY(-5px);
  color: rgba(255, 255, 255, 1);
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--bg-tertiary);
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid var(--border-subtle);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-section h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-lg);
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section li {
  margin-bottom: var(--space-sm);
}

.footer-section a {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  transition: color var(--duration-base) var(--ease-out);
}

.footer-section a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-bottom p {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin: 0;
}

/* ============================================
   CUSTOM CURSOR (Desktop only)
   ============================================ */

@media (hover: hover) and (pointer: fine) {
  .custom-cursor {
    position: fixed;
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent-primary);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.15s ease-out,
                opacity 0.15s ease-out;
    transform: translate(-50%, -50%);
    opacity: 0;
  }
  
  .custom-cursor.active {
    opacity: 1;
  }
  
  .custom-cursor.hover {
    transform: translate(-50%, -50%) scale(1.5);
    background: var(--accent-primary);
    opacity: 0.3;
  }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.text-center { text-align: center; }
.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--duration-base) var(--ease-out);
  cursor: pointer;
  border: none;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-md);
}

/* Loading Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-subtle);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}
  
 /* ============================================
   WHATSAPP FLOATING BUTTON
   ============================================ */

.whatsapp-float {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: 999;
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  transition: all var(--duration-base) var(--ease-out);
  cursor: pointer;
  animation: pulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1) translateY(-3px);
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
  color: white;
  transition: transform var(--duration-base) var(--ease-out);
}

.whatsapp-float:hover svg {
  transform: scale(1.1) rotate(5deg);
}

/* Pulse Animation */
@keyframes pulse {
  0%, 100% {
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4),
                0 0 0 0 rgba(37, 211, 102, 0.7);
  }
  50% {
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4),
                0 0 0 10px rgba(37, 211, 102, 0);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .whatsapp-float {
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 56px;
    height: 56px;
  }
  
  .whatsapp-float svg {
    width: 28px;
    height: 28px;
  }
}

/* Dark mode - más brillo */
[data-theme="dark"] .whatsapp-float {
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.5),
              0 0 20px rgba(37, 211, 102, 0.3);
}

[data-theme="dark"] .whatsapp-float:hover {
  box-shadow: 0 8px 20px rgba(37, 211, 102, 0.7),
              0 0 30px rgba(37, 211, 102, 0.4);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 768px) {
  :root {
    --container-padding: 1.5rem;
    --section-spacing: clamp(3rem, 8vw, 6rem);
  }
  
  .capabilities-grid,
  .process-grid,
  .build-grid {
    grid-template-columns: 1fr;
  }
  
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .site-header,
  .site-footer,
  .theme-toggle,
  .mobile-menu-toggle {
    display: none;
  }
  
  body {
    background: white;
    color: black;
  }
  
  
}