/* ========================================
   VARIABLES GLOBALES & PALETA DE COLORES
   ======================================== */

:root {
  /* === PALETA PRINCIPAL === */
  --primary: #0ea5e9;          /* Sky Blue */
  --primary-dark: #0284c7;     /* Sky Blue Dark */
  --secondary: #10b981;        /* Emerald */
  --secondary-dark: #059669;   /* Emerald Dark */
  --accent: #8b5cf6;           /* Violet */
  --accent-dark: #7c3aed;      /* Violet Dark */
  

  
  /* === NEUTRALES === */
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --black: #000000;
  
  /* === DEGRADADOS === */
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--secondary));
  --gradient-hero: linear-gradient(135deg, var(--primary) 0%, var(--accent) 50%, var(--secondary) 100%);
  --gradient-card: linear-gradient(145deg, var(--white) 0%, var(--gray-50) 100%);
  --gradient-overlay: linear-gradient(135deg, rgba(14, 165, 233, 0.9) 0%, rgba(139, 92, 246, 0.8) 100%);
  
  /* === SOMBRAS === */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 30px 70px rgba(0, 0, 0, 0.2);
  --shadow-glow: 0 0 20px rgba(16, 185, 129, 0.3);
  --shadow-primary: 0 10px 40px rgba(14, 165, 233, 0.2);
  
  /* === TRANSICIONES === */
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
  --transition-bounce: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* === ESPACIADO === */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
}

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

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

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

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.7;
  color: var(--gray-700);
  background: var(--white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 700; }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p {
  margin-bottom: var(--spacing-md);
  font-weight: 400;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  position: relative;
  font-size: clamp(2rem, 4vw, 2.5rem);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: fadeInUp 0.8s ease-out;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
  animation: scaleIn 0.6s ease-out 0.3s both;
}

/* ========================================
   HEADER - GLASSMORPHISM PREMIUM
   ======================================== */

header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: rgb(17, 24, 39);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transition: var(--transition-smooth);
  will-change: backdrop-filter, background-color;
}

header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(30px);
  box-shadow: var(--shadow-md);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--gray-900);
  transition: var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
}

.logo-circle {
  width: 45px;
  height: 45px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1.1rem;
  box-shadow: var(--shadow-primary);
  transition: var(--transition-bounce);
}

.logo:hover .logo-circle {
  transform: rotate(360deg);
  box-shadow: var(--shadow-glow);
}

nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

nav a {
  position: relative;
  font-weight: 500;
  color: var(--gray-700);
  transition: var(--transition-fast);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 8px;
}

nav a::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width 0.3s ease;
}

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

nav a:hover {
  color: var(--primary);
  background: rgba(14, 165, 233, 0.1);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--gray-700);
  cursor: pointer;
  transition: var(--transition-fast);
}

.mobile-menu-btn:hover {
  transform: scale(1.1);
  color: var(--primary);
}

/* ========================================
   HERO SECTION - DISEÑO ASIMÉTRICO PREMIUM
   ======================================== */

.hero {
  min-height: 85vh;
  background: var(--gradient-hero);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  scroll-margin-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 80%, rgba(14, 165, 233, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
}

.hero-container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hero-content {
  animation: slideInLeft 1s ease-out;
}

.hero-title {
  color: var(--white);
  font-weight: 800;
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1.2rem, 3vw, 1.5rem);
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  line-height: 1.4;
}

.hero-description {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-xl);
  font-style: italic;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.btn {
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: 50px;
  font-weight: 600;
  text-align: center;
  transition: var(--transition-bounce);
  border: 2px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 1rem;
  cursor: pointer;
  will-change: transform;
  text-decoration: none;
}

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

.btn-primary:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--shadow-xl);
  background: var(--gray-50);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  transform: translateY(-3px);
}

.hero-icons {
  display: flex;
  gap: var(--spacing-md);
}

.hero-icon {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.2rem;
  transition: var(--transition-bounce);
  animation: float 3s ease-in-out infinite;
}

.hero-icon:nth-child(2) { animation-delay: 0.5s; }
.hero-icon:nth-child(3) { animation-delay: 1s; }

.hero-icon:hover {
  transform: translateY(-5px) scale(1.1);
  background: rgba(255, 255, 255, 0.3);
}

.hero-image {
  position: relative;
  animation: slideInRight 1s ease-out;
}

.hero-image img {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: 30px;
  box-shadow: var(--shadow-xl);
  transition: var(--transition-smooth);
  object-fit: cover;
}

.hero-image:hover img {
  transform: scale(1.05) rotate(2deg);
}

.hero-shape {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 100px;
  background: var(--white);
  clip-path: ellipse(100% 100% at 50% 100%);
}

/* ========================================
   PROJECTS SECTION - NEUMORPHISM PREMIUM
   ======================================== */

#projects {
  padding: var(--spacing-3xl) 0;
  background: var(--white);
  scroll-margin-top: 80px;
}

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

.projects-modal-btn {
  background: var(--gradient-primary);
  color: var(--white);
  border: none;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-bounce);
  box-shadow: var(--shadow-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-md);
}

.projects-modal-btn:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--shadow-glow);
}

.projects-modal-btn i {
  font-size: 1.2rem;
}

/* ========================================
   MODAL DE PROYECTOS - PREMIUM
   ======================================== */

.projects-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.projects-modal-container {
  background: var(--white);
  border-radius: 24px;
  max-width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  position: relative;
  animation: slideInUp 0.5s ease-out;
}

.projects-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-xl);
  background: var(--gradient-primary);
  color: var(--white);
}

.projects-modal-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
}

.projects-modal-close {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: var(--white);
  font-size: 1.5rem;
  padding: var(--spacing-xs);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition-fast);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.projects-modal-close:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: rotate(90deg) scale(1.1);
}

.projects-slider {
  position: relative;
  height: 70vh;
  overflow: hidden;
}

.slider-indicators {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  position: absolute;
  bottom: var(--spacing-md);
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
}

.slider-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition-fast);
}

.slider-dot.active,
.slider-dot:hover {
  background: var(--white);
  transform: scale(1.2);
}

.projects-slides {
  display: flex;
  height: 100%;
  transition: transform 0.5s ease-in-out;
  will-change: transform;
}

.project-slide {
  min-width: 100%;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  height: 100%;
}

.project-slide-image {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}

.project-slide-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-overlay);
  opacity: 0.1;
}

.project-slide-content {
  padding: var(--spacing-3xl);
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--gray-50);
}

.project-slide-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.project-slide-date {
  color: var(--gray-600);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

.project-slide-description {
  color: var(--gray-700);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
}

.project-slide-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
}

.tech-tag {
  background: rgba(14, 165, 233, 0.1);
  color: var(--primary);
  padding: 0.3rem 0.8rem;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid rgba(14, 165, 233, 0.2);
  transition: var(--transition-fast);
}

.tech-tag:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.project-slide-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--primary);
  font-weight: 600;
  transition: var(--transition-fast);
  text-decoration: none;
}

.project-slide-link:hover {
  transform: translateX(5px);
  color: var(--primary-dark);
}

/* Template oculto */
#projectSlideTemplate {
  display: none;
}

/* ========================================
   ABOUT SECTION - MEJORADA
   ======================================== */

#about {
  padding: var(--spacing-3xl) 0;
  background: var(--gray-50);
  scroll-margin-top: 80px;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.about-image {
  position: relative;
}

.about-image img {
  width: 100%;
  max-width: 350px;
  border-radius: 25px;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-smooth);
  object-fit: cover;
  aspect-ratio: 1;
}

.about-image:hover img {
  transform: scale(1.03);
}

.soft-skills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-md);
}

.skill-tag {
  background: var(--gradient-primary);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-bounce);
}

.skill-tag:hover {
  transform: translateY(-2px) scale(1.05);
}

.about-text h3 {
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
}

.hybrid-skills {
  list-style: none;
  margin: var(--spacing-md) 0;
}

.hybrid-skills li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.hybrid-skills li:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-md);
}

.hybrid-skills i {
  color: var(--primary);
  font-size: 1.2rem;
}

.education-card {
  background: var(--gradient-card);
  padding: var(--spacing-md);
  border-radius: 16px;
  margin: var(--spacing-md) 0;
  border-left: 4px solid var(--secondary);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.education-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.education-card h4 {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--primary);
  margin-bottom: var(--spacing-xs);
}

.personal-phrase {
  background: var(--primary);
  color: var(--white);
  padding: var(--spacing-md);
  border-radius: 16px;
  font-style: italic;
  position: relative;
  margin-top: var(--spacing-md);
  box-shadow: var(--shadow-primary);
}

.personal-phrase::before {
  content: '"';
  font-size: 3rem;
  position: absolute;
  top: -10px;
  left: 15px;
  opacity: 0.3;
}

/* ========================================
   SKILLS SECTION - DEGRADADOS ELEGANTES
   ======================================== */

#skills {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
  scroll-margin-top: 80px;
}

.skills-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
  color: var(--gray-600);
  font-size: 1.125rem;
  line-height: 1.7;
}

.skills-container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: 4rem;
}

.skills-main {
  display: grid;
  gap: 1.5rem;
}

.skill-category {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: 24px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  border-top: 4px solid var(--secondary);
}

.skill-category::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(16, 185, 129, 0.05), transparent);
  transition: left 0.6s;
}

.skill-category:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.skill-category:hover::before {
  left: 100%;
}

.skill-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: 1.5rem;
  padding-bottom: var(--spacing-sm);
  border-bottom: 2px solid var(--gray-100);
}

.skill-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.3rem;
  box-shadow: var(--shadow-primary);
  transition: var(--transition-bounce);
  flex-shrink: 0;
}

.skill-category:hover .skill-icon {
  transform: rotate(10deg) scale(1.1);
}

.skill-header h3 {
  color: var(--gray-900);
  font-size: 1.2rem;
  margin: 0;
}

.skill-item {
  margin-bottom: 1.5rem;
  padding: var(--spacing-sm);
  border-radius: 12px;
  transition: var(--transition-smooth);
  border-left: 4px solid transparent;
}

.skill-item:hover {
  background: rgba(16, 185, 129, 0.05);
  border-left-color: var(--secondary);
  transform: translateX(10px);
}

.skill-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.skill-name {
  font-weight: 600;
  color: var(--gray-900);
  font-size: 1rem;
}

.skill-level {
  background: rgba(16, 185, 129, 0.1);
  color: var(--secondary);
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.skill-level.principiante {
  background: rgba(139, 92, 246, 0.1);
  color: var(--accent);
  border-color: rgba(139, 92, 246, 0.3);
}

.skill-description {
  color: var(--gray-600);
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: 0.75rem;
}

.skill-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Skills Sidebar */
.skills-sidebar {
  display: grid;
  gap: 1.5rem;
}

.sidebar-card {
  background: var(--white);
  border-radius: 24px;
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
  border-top: 4px solid var(--accent);
}

.sidebar-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.sidebar-card h3 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
}

.sidebar-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1rem;
}

.language-item,
.education-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--gray-100);
}

.language-item:last-child,
.education-item:last-child {
  border-bottom: none;
}

.language-name,
.education-title {
  font-weight: 500;
  color: var(--gray-900);
}

.language-level {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nativo {
  color: var(--secondary);
}

.basico {
  color: var(--accent);
}

.education-detail {
  color: var(--gray-600);
  font-size: 0.875rem;
}

/* Soft Skills Section */
.soft-skills-section {
  padding: 4rem 0;
  background: var(--gray-50);
  margin-top: 4rem;
  border-radius: 24px;
}

.soft-skills-title {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-lg);
}

.soft-skills-subtitle {
  text-align: center;
  color: var(--gray-600);
  margin-bottom: var(--spacing-3xl);
  font-size: 1rem;
}

.soft-skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.soft-skill-card {
  background: var(--white);
  border-radius: var(--spacing-md);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.soft-skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

.soft-skill-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.soft-skill-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-sm);
  color: var(--white);
  font-size: 1.25rem;
  box-shadow: var(--shadow-glow);
}

.soft-skill-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.soft-skill-description {
  color: var(--gray-600);
  font-size: 0.875rem;
  line-height: 1.5;
}

/* ========================================
   TIMELINE SECTION - LÍNEA CURVA PREMIUM
   ======================================== */

#timeline,
.timeline-section {
  padding: var(--spacing-3xl) 0;
  background: var(--gray-50);
  scroll-margin-top: 80px;
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding: 0 0 var(--spacing-2xl) 100px;
  animation: fadeInUp 0.8s ease-out;
}

.timeline-item:nth-child(even) {
  animation-delay: 0.2s;
}

.timeline-dot {
  position: absolute;
  left: 38px;
  top: 0;
  width: 25px;
  height: 25px;
  background: var(--white);
  border: 4px solid var(--primary);
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  transition: var(--transition-bounce);
}

.timeline-item:hover .timeline-dot {
  transform: scale(1.3);
  border-color: var(--secondary);
  box-shadow: var(--shadow-glow);
}

.timeline-content {
  background: var(--white);
  padding: var(--spacing-lg);
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
  position: relative;
  border-left: 4px solid var(--primary);
}

.timeline-content::before {
  content: '';
  position: absolute;
  left: -20px;
  top: 25px;
  width: 0;
  height: 0;
  border: 12px solid transparent;
  border-right-color: var(--white);
}

.timeline-item:hover .timeline-content {
  transform: translateY(-8px) translateX(5px);
  box-shadow: var(--shadow-lg);
  border-left-color: var(--secondary);
}

.timeline-date {
  background: var(--gradient-primary);
  color: var(--white);
  padding: 0.4rem 1.2rem;
  border-radius: 25px;
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-block;
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-primary);
}

.timeline-title {
  color: var(--gray-900);
  margin-bottom: var(--spacing-sm);
  font-size: 1.3rem;
}

.timeline-description {
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
  font-size: 1.05rem;
}

/* === DETALLES EXPANDIBLES === */
.timeline-details {
  margin-top: var(--spacing-lg);
  display: grid;
  gap: var(--spacing-md);
}

.timeline-detail-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: var(--gray-50);
  border-radius: 12px;
  transition: var(--transition-fast);
  border-left: 3px solid transparent;
}

.timeline-detail-item:hover {
  background: rgba(14, 165, 233, 0.05);
  border-left-color: var(--primary);
  transform: translateX(5px);
}

.detail-icon {
  font-size: 1.2rem;
  width: 30px;
  height: 30px;
  background: var(--white);
  border-radius: 0%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-bounce);
}

.timeline-detail-item:hover .detail-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: var(--shadow-md);
}

.detail-content {
  flex: 1;
  font-size: 0.95rem;
  line-height: 1.5;
}

.detail-content strong {
  color: var(--gray-900);
  font-weight: 600;
  display: block;
  margin-bottom: 0.3rem;
}

/* === TAGS DE DETALLE === */
.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.detail-tag {
  background: rgba(14, 165, 233, 0.1);
  color: var(--primary);
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid rgba(14, 165, 233, 0.2);
  transition: var(--transition-fast);
}

.detail-tag:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px) scale(1.05);
  box-shadow: var(--shadow-sm);
}

/* === RESPONSIVE === */
@media (max-width: 1023px) {
  .timeline::before {
    left: 25px;
  }
  
  .timeline-item {
    padding-left: 70px;
  }
  
  .timeline-dot {
    left: 13px;
  }
  
  .timeline-content::before {
    left: -16px;
    border-width: 10px;
  }
}

@media (max-width: 767px) {
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item {
    padding-left: 60px;
    padding-bottom: var(--spacing-xl);
  }
  
  .timeline-dot {
    left: 8px;
    width: 20px;
    height: 20px;
  }
  
  .timeline-content {
    padding: var(--spacing-md);
  }
  
  .timeline-content::before {
    left: -14px;
    border-width: 8px;
  }
  
  .timeline-details {
    gap: var(--spacing-sm);
  }
  
  .timeline-detail-item {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-xs);
  }
  
  .detail-tags {
    justify-content: center;
  }
  
  .timeline-title {
    font-size: 1.1rem;
  }
  
  .timeline-description {
    font-size: 1rem;
  }
}

@media (max-width: 575px) {
  .timeline-content {
    border-radius: 16px;
  }
  
  .detail-tag {
    font-size: 0.7rem;
    padding: 0.15rem 0.5rem;
  }
}

/* ========================================
   WHY HIRE ME SECTION - PREMIUM
   ======================================== */

#why-hire-me,
.why-hire {
  padding: var(--spacing-3xl) 0;
  background: var(--white);
  scroll-margin-top: 80px;
}

.hire-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hire-text {
  background: var(--gradient-card);
  padding: var(--spacing-xl);
  border-radius: 24px;
  box-shadow: var(--shadow-lg);
  position: relative;
  border: 2px solid transparent;
  background-clip: padding-box;
}

.hire-text::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: var(--gradient-primary);
  border-radius: 26px;
  z-index: -1;
  opacity: 0;
  transition: var(--transition-smooth);
}

.hire-text:hover::before {
  opacity: 1;
  animation: borderGlow 2s ease-in-out infinite alternate;
}

.highlight-paragraph {
  font-size: 1.1rem;
  color: var(--gray-800);
  margin-bottom: var(--spacing-md);
  position: relative;
}

.time-note {
  background: rgba(139, 92, 246, 0.1);
  color: var(--accent);
  padding: var(--spacing-sm);
  border-radius: 12px;
  font-style: italic;
  margin: var(--spacing-md) 0;
  border-left: 4px solid var(--accent);
}

.time-note i {
  margin-right: var(--spacing-xs);
}

.closing-statement {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: var(--spacing-md);
}

.hire-direct {
  margin-top: var(--spacing-lg);
}

.text-link {
  color: var(--primary);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: transparent;
  transition: var(--transition-fast);
}

.text-link:hover {
  text-decoration-color: var(--primary);
}

.bounce-arrow {
  display: block;
  margin: var(--spacing-md) auto 0;
  font-size: 1.5rem;
  color: var(--secondary);
  animation: bounce 2s infinite;
}

/* ========================================
   CONTACT SECTION - PREMIUM
   ======================================== */

#contact,
.contact {
  padding: var(--spacing-3xl) 0;
  background: var(--gray-50);
  scroll-margin-top: 80px;
}

.contact-container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.contact-info h3 {
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
}

.contact-details {
  margin: var(--spacing-xl) 0;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--white);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.contact-item:hover {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.2rem;
  box-shadow: var(--shadow-primary);
  transition: var(--transition-bounce);
  flex-shrink: 0;
}

.contact-item:hover .contact-icon {
  transform: rotate(10deg) scale(1.1);
}

.contact-text h4 {
  color: var(--gray-900);
  margin-bottom: 0.2rem;
  font-size: 1rem;
}

.contact-text a,
.contact-text span {
  color: var(--gray-600);
  font-weight: 500;
  transition: var(--transition-fast);
}

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

.social-links {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.social-link {
  width: 45px;
  height: 45px;
  background: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-600);
  font-size: 1.2rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-bounce);
}

.social-link:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-5px) scale(1.1);
  box-shadow: var(--shadow-primary);
}

/* === FORMULARIO DE CONTACTO === */
.contact-form {
  background: var(--white);
  padding: var(--spacing-xl);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.contact-form::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--gray-900);
  font-weight: 600;
  font-size: 0.95rem;
}

.form-control {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--gray-200);
  border-radius: 12px;
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition-fast);
  background: var(--gray-50);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
  transform: translateY(-2px);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--gradient-primary);
  color: var(--white);
  border: none;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-bounce);
  box-shadow: var(--shadow-primary);
}

.form-submit:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-glow);
  filter: brightness(1.1);
}

.form-submit:active {
  transform: translateY(0) scale(0.98);
}

/* Animación de pulse */
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
  100% {
    transform: scale(1);
  }
}

/* ========================================
   FOOTER - FORMA DE ONDA SVG PREMIUM
   ======================================== */

footer {
  background: rgb(17, 24, 39);
  color: var(--white);
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: -50px;
  left: 0;
  right: 0;
  height: 100px;
  background: var(--gray-50);
  clip-path: ellipse(100% 100% at 50% 0%);
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  text-align: center;
  position: relative;
  z-index: 2;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--white);
  transition: var(--transition-fast);
}

.footer-logo:hover {
  transform: scale(1.05);
  color: var(--primary);
}

.footer-logo-circle {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  box-shadow: var(--shadow-primary);
  transition: var(--transition-bounce);
}

.footer-logo:hover .footer-logo-circle {
  transform: rotate(360deg);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
}

.footer-link {
  color: var(--gray-300);
  font-weight: 500;
  transition: var(--transition-fast);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 8px;
}

.footer-link:hover {
  color: var(--primary);
  background: rgba(14, 165, 233, 0.1);
  transform: translateY(-2px);
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.footer-social-link {
  width: 45px;
  height: 45px;
  background: var(--gray-800);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  font-size: 1.2rem;
  transition: var(--transition-bounce);
}

.footer-social-link:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-5px) scale(1.1);
}

.footer-copyright {
  color: var(--gray-400);
  font-size: 0.9rem;
  margin: 0;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--gray-800);
}

/* ========================================
   KEYFRAMES & ANIMACIONES
   ======================================== */

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: translateX(-50%) scaleX(0);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) scaleX(1);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

@keyframes borderGlow {
  0% {
    filter: drop-shadow(0 0 5px rgba(14, 165, 233, 0.3));
  }
  100% {
    filter: drop-shadow(0 0 20px rgba(14, 165, 233, 0.6));
  }
}

/* ========================================
   RESPONSIVE DESIGN - MOBILE FIRST
   ======================================== */

/* === TABLET (768px - 1023px) === */
@media (max-width: 1023px) {
  /* Header */
  .mobile-menu-btn {
    display: block;
  }
  
  nav {
    display: none;
  }
  
  nav.active {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
  }
  
  nav ul {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  nav a {
    display: block;
    padding: var(--spacing-sm);
    border-radius: 8px;
  }
  
  /* Hero */
  .hero {
    min-height: 80vh;
    padding: var(--spacing-xl) 0;
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    text-align: center;
  }
  
  .hero-buttons {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .btn {
    min-width: 140px;
  }
  
  /* About */
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    text-align: center;
  }
  
  .about-image {
    order: -1;
  }
  
  /* Skills */
  .skills-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  /* Timeline */
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item {
    padding-left: 60px;
  }
  
  .timeline-dot {
    left: 8px;
  }
  
  /* Contact */
  .contact-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  /* Projects Modal */
  .project-slide {
    grid-template-columns: 1fr;
  }
  
  .project-slide-content {
    padding: var(--spacing-xl);
  }
  
  .projects-modal-container {
    max-width: 95vw;
    max-height: 95vh;
  }
  
  .projects-slider {
    height: 60vh;
  }
}

/* === MOBILE (576px - 767px) === */
@media (max-width: 767px) {
  :root {
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 2.5rem;
    --spacing-3xl: 3rem;
  }
  
  .container {
    padding: 0 var(--spacing-sm);
  }
  
  /* Section spacing */
  #about,
  #projects,
  #skills,
  #timeline,
  .timeline-section,
  #why-hire-me,
  .why-hire,
  #contact,
  .contact {
    padding: var(--spacing-2xl) 0;
  }
  
  .hero {
    min-height: 75vh;
    padding: var(--spacing-xl) 0;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .btn {
    width: 100%;
    max-width: 280px;
  }
  
  .hero-icons {
    justify-content: center;
  }
  
  .skill-category,
  .sidebar-card {
    padding: var(--spacing-lg);
  }
  
  .contact-item {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-sm);
  }
  
  .contact-form {
    padding: var(--spacing-lg);
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .footer-social {
    gap: var(--spacing-sm);
  }
  
  /* Projects Modal Mobile */
  .projects-slider {
    height: 50vh;
  }
  
  .project-slide-content {
    padding: var(--spacing-lg);
  }
}

/* === SMALL MOBILE (≤575px) === */
@media (max-width: 575px) {
  .section-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }
  
  .projects-modal-container {
    max-width: 100vw;
    max-height: 100vh;
    border-radius: 0;
  }
  
  .projects-modal-header {
    padding: var(--spacing-md) var(--spacing-lg);
  }
  
  .projects-slider {
    height: 40vh;
  }
  
  .project-slide-content {
    padding: var(--spacing-md);
  }
  
  .skill-header {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
  }
  
  .skill-title {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
}

/* ========================================
   DARK MODE SUPPORT
   ======================================== */

@media (prefers-color-scheme: dark) {
  :root {
    --white: #111827;
    --gray-50: #1f2937;
    --gray-100: #374151;
    --gray-200: #4b5563;
    --gray-300: #6b7280;
    --gray-400: #9ca3af;
    --gray-600: #d1d5db;
    --gray-700: #e5e7eb;
    --gray-800: #f3f4f6;
    --gray-900: #f9fafb;
    --black: #ffffff;
  }
  
  .hero {
    background: linear-gradient(135deg, #1f2937 0%, #111827 50%, #0f172a 100%);
  }
  
  footer::before {
    background: var(--gray-50);
  }
  
  .form-control {
    background: var(--gray-100);
    border-color: var(--gray-300);
    color: var(--gray-700);
  }
  
  .form-control:focus {
    background: var(--gray-50);
  }
  
  .projects-modal {
    background: rgba(0, 0, 0, 0.9);
  }
}

/* ========================================
   UTILIDADES FINALES
   ======================================== */

.visually-hidden:not(:focus):not(:active) {
  clip: rect(0 0 0 0); 
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap; 
  width: 1px;
}

.invisible {
  visibility: hidden;
}

.transparent {
  opacity: 0;
}

.truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ========================================
   MEJORAS DE ACCESIBILIDAD
   ======================================== */

button:focus,
input:focus,
textarea:focus,
select:focus,
a:focus {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.3);
}

/* acá va el styles de los proyectos (los templates) */

/* Barra de navegación del slider */
.slider-navigation {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
  z-index: 10;
}

/* Barra de progreso horizontal */
.slider-progress-bar {
  width: 200px;
  height: 4px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition-fast);
}

.slider-progress-bar:hover {
  height: 6px;
}

.slider-progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: 2px;
  transition: width 0.5s ease;
  width: 33.33%; /* Se ajustará dinámicamente */
}

/* Indicadores (dots) mejorados */
.slider-indicators {
  display: flex;
  gap: 12px;
}

.slider-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
}

.slider-dot:hover {
  background: rgba(255, 255, 255, 0.7);
  transform: scale(1.2);
}

.slider-dot.active {
  background: var(--white);
  transform: scale(1.3);
}

.slider-dot.active::after {
  content: '';
  position: absolute;
  inset: -4px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

/* Hacer la barra clickeable para navegación */
.slider-progress-bar {
  position: relative;
}

.slider-progress-bar::before {
  content: '';
  position: absolute;
  top: -10px;
  bottom: -10px;
  left: 0;
  right: 0;
  cursor: pointer;
}

/* Responsive */
@media (max-width: 767px) {
  .slider-progress-bar {
    width: 150px;
    height: 3px;
  }
  
  .slider-dot {
    width: 10px;
    height: 10px;
  }
  
  .slider-indicators {
    gap: 8px;
  }
}

/* Animación para el dot activo */
@keyframes pulse {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
  100% {
    opacity: 1;
  }
}

/* PRUEBA */

       /* ========================================
           VARIABLES Y BASE STYLES
           ======================================== */


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

        body {
            font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            line-height: 1.7;
            color: var(--gray-700);
            background: var(--gray-50);
            overflow-x: hidden;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 var(--spacing-md);
        }

        .section-title {
            text-align: center;
            margin-bottom: var(--spacing-3xl);
            position: relative;
            font-size: clamp(2rem, 4vw, 2.5rem);
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            animation: fadeInUp 0.8s ease-out;
            font-weight: 700;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--gradient-primary);
            border-radius: 2px;
            animation: scaleIn 0.6s ease-out 0.3s both;
        }

        /* ========================================
           TOOLS STACK SECTION - DISEÑO PREMIUM
           ======================================== */

        #tools-stack {
            padding: var(--spacing-3xl) 0;
            background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 50%, var(--gray-50) 100%);
            position: relative;
            overflow: hidden;
        }

        #tools-stack::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 15% 20%, rgba(14, 165, 233, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 85% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.03) 0%, transparent 50%);
            z-index: 1;
        }

        .tools-container {
            position: relative;
            z-index: 2;
        }

        .tools-intro {
            text-align: center;
            max-width: 800px;
            margin: 0 auto var(--spacing-3xl);
            color: var(--gray-600);
            font-size: 1.125rem;
            line-height: 1.8;
            animation: fadeInUp 0.8s ease-out 0.2s both;
        }

        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-2xl);
        }

        /* === CATEGORÍAS DE HERRAMIENTAS === */
        .tool-category {
            background: var(--white);
            border-radius: 24px;
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
            transition: var(--transition-smooth);
            border-top: 5px solid var(--primary);
            animation: slideInUp 0.8s ease-out both;
        }

        .tool-category:nth-child(1) { animation-delay: 0.1s; border-top-color: var(--primary); }
        .tool-category:nth-child(2) { animation-delay: 0.2s; border-top-color: var(--secondary); }
        .tool-category:nth-child(3) { animation-delay: 0.3s; border-top-color: var(--accent); }
        .tool-category:nth-child(4) { animation-delay: 0.4s; border-top-color: var(--primary); }

        .tool-category::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(14, 165, 233, 0.03), transparent);
            transition: left 0.8s ease;
        }

        .tool-category:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-xl);
        }

        .tool-category:hover::before {
            left: 100%;
        }

        /* === HEADER DE CATEGORÍA === */
        .category-header {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            margin-bottom: var(--spacing-lg);
            padding-bottom: var(--spacing-sm);
            border-bottom: 2px solid var(--gray-100);
        }

        .category-icon {
            width: 60px;
            height: 60px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 1.5rem;
            box-shadow: var(--shadow-primary);
            transition: var(--transition-bounce);
            flex-shrink: 0;
        }

        .automation .category-icon { background: var(--gradient-primary); }
        .frontend .category-icon { background: linear-gradient(135deg, var(--secondary), var(--primary)); }
        .ai-prompts .category-icon { background: linear-gradient(135deg, var(--accent), var(--secondary)); }
        .data-management .category-icon { background: linear-gradient(135deg, var(--primary), var(--accent)); }

        .tool-category:hover .category-icon {
            transform: rotate(10deg) scale(1.1);
            box-shadow: var(--shadow-glow);
        }

        .category-title {
            color: var(--gray-900);
            font-size: 1.3rem;
            font-weight: 600;
            margin: 0;
        }

        .category-description {
            color: var(--gray-600);
            font-size: 0.9rem;
            margin-top: 0.3rem;
            font-style: italic;
        }

        /* === HERRAMIENTAS INDIVIDUALES === */
        .tools-list {
            display: grid;
            gap: var(--spacing-md);
        }

        .tool-item {
            background: var(--gray-50);
            border-radius: 16px;
            padding: var(--spacing-md);
            transition: var(--transition-smooth);
            border-left: 4px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .tool-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--white);
            opacity: 0;
            transition: opacity 0.3s ease;
            border-radius: 16px;
        }

        .tool-item:hover {
            transform: translateX(8px);
            box-shadow: var(--shadow-md);
            border-left-color: var(--primary);
        }

        .tool-item:hover::before {
            opacity: 1;
        }

        .tool-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: var(--spacing-xs);
            position: relative;
            z-index: 2;
        }

        .tool-name-container {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
        }

        .tool-icon {
            width: 35px;
            height: 35px;
            background: var(--gradient-primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-size: 0.9rem;
            box-shadow: var(--shadow-sm);
            transition: var(--transition-bounce);
            flex-shrink: 0;
        }

        .tool-item:hover .tool-icon {
            transform: rotate(5deg) scale(1.1);
        }

        .tool-name {
            font-weight: 600;
            color: var(--gray-900);
            font-size: 1rem;
        }

        .tool-level {
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            padding: 0.25rem 0.75rem;
            border-radius: 12px;
            border: 2px solid;
            transition: var(--transition-fast);
        }

        .tool-level.avanzado {
            background: rgba(16, 185, 129, 0.1);
            color: var(--secondary);
            border-color: rgba(16, 185, 129, 0.3);
        }

        .tool-level.intermedio {
            background: rgba(14, 165, 233, 0.1);
            color: var(--primary);
            border-color: rgba(14, 165, 233, 0.3);
        }

        .tool-level.principiante {
            background: rgba(139, 92, 246, 0.1);
            color: var(--accent);
            border-color: rgba(139, 92, 246, 0.3);
        }

        .tool-item:hover .tool-level.avanzado {
            background: var(--secondary);
            color: var(--white);
            transform: scale(1.05);
        }

        .tool-item:hover .tool-level.intermedio {
            background: var(--primary);
            color: var(--white);
            transform: scale(1.05);
        }

        .tool-item:hover .tool-level.principiante {
            background: var(--accent);
            color: var(--white);
            transform: scale(1.05);
        }

        .tool-description {
            color: var(--gray-600);
            font-size: 0.875rem;
            line-height: 1.5;
            position: relative;
            z-index: 2;
        }

        /* === SECCIÓN DE ESTADÍSTICAS === */
        .tools-stats {
            background: var(--white);
            border-radius: 24px;
            padding: var(--spacing-xl);
            box-shadow: var(--shadow-lg);
            margin-top: var(--spacing-2xl);
            position: relative;
            overflow: hidden;
            animation: fadeInUp 1s ease-out 0.6s both;
        }

        .tools-stats::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 5px;
            background: var(--gradient-primary);
        }

        .stats-title {
            text-align: center;
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--gray-900);
            margin-bottom: var(--spacing-lg);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: var(--spacing-lg);
        }

        .stat-item {
            text-align: center;
            padding: var(--spacing-md);
            background: var(--gray-50);
            border-radius: 16px;
            transition: var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .stat-item::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: conic-gradient(from 0deg, transparent, rgba(14, 165, 233, 0.1), transparent);
            animation: rotate 4s linear infinite;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .stat-item:hover::before {
            opacity: 1;
        }

        .stat-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            display: block;
            position: relative;
            z-index: 2;
        }

        .stat-label {
            color: var(--gray-600);
            font-weight: 500;
            margin-top: 0.5rem;
            position: relative;
            z-index: 2;
        }

        /* ========================================
           ANIMACIONES Y KEYFRAMES
           ======================================== */

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

        @keyframes slideInUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes scaleIn {
            from {
                opacity: 0;
                transform: translateX(-50%) scaleX(0);
            }
            to {
                opacity: 1;
                transform: translateX(-50%) scaleX(1);
            }
        }

        @keyframes rotate {
            from {
                transform: rotate(0deg);
            }
            to {
                transform: rotate(360deg);
            }
        }

        @keyframes pulse {
            0%, 100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.05);
            }
        }

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

        /* Tablet */
        @media (max-width: 1023px) {
            .tools-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }
            
            .tool-category {
                padding: var(--spacing-lg);
            }
            
            .category-icon {
                width: 50px;
                height: 50px;
                font-size: 1.3rem;
            }
            
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        /* Mobile */
        @media (max-width: 767px) {
            :root {
                --spacing-xs: 0.25rem;
                --spacing-sm: 0.75rem;
                --spacing-md: 1rem;
                --spacing-lg: 1.5rem;
                --spacing-xl: 2rem;
                --spacing-2xl: 2.5rem;
                --spacing-3xl: 3rem;
            }
            
            .container {
                padding: 0 var(--spacing-sm);
            }
            
            #tools-stack {
                padding: var(--spacing-2xl) 0;
            }
            
            .tools-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-md);
            }
            
            .tool-category {
                padding: var(--spacing-md);
                border-radius: 16px;
            }
            
            .category-header {
                flex-direction: column;
                text-align: center;
                gap: var(--spacing-sm);
            }
            
            .category-icon {
                width: 45px;
                height: 45px;
                font-size: 1.1rem;
            }
            
            .category-title {
                font-size: 1.1rem;
            }
            
            .tool-header {
                flex-direction: column;
                align-items: flex-start;
                gap: var(--spacing-xs);
            }
            
            .tool-name-container {
                width: 100%;
            }
            
            .tool-level {
                align-self: flex-start;
            }
            
            .stats-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-sm);
            }
            
            .stat-number {
                font-size: 2rem;
            }
            
            .tools-stats {
                padding: var(--spacing-lg);
            }
        }

        /* Small Mobile */
        @media (max-width: 575px) {
            .section-title {
                font-size: clamp(1.5rem, 6vw, 2rem);
            }
            
            .tools-intro {
                font-size: 1rem;
            }
            
            .tool-item {
                padding: var(--spacing-sm);
            }
            
            .tool-icon {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
            }
            
            .tool-name {
                font-size: 0.9rem;
            }
            
            .tool-description {
                font-size: 0.8rem;
            }
        }

        /* Mejoras de accesibilidad */
        .tool-item:focus,
        .tool-category:focus {
            outline: 3px solid var(--primary);
            outline-offset: 2px;
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

/* Timeline Section Mejorada */
.timeline-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    position: relative;
}

.timeline-intro {
    text-align: center;
    color: var(--gray-600);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* Filtros */
.timeline-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid var(--primary);
    background: transparent;
    color: var(--primary);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 0.9rem;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

/* Timeline Container */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 4rem;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 2px;
}

/* Timeline Items */
.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    opacity: 1;
    transform: translateX(0);
    transition: all 0.5s ease;
}

.timeline-item.hidden {
    opacity: 0;
    transform: translateX(-30px);
    pointer-events: none;
    height: 0;
    margin: 0;
    overflow: hidden;
}

/* Timeline Dot */
.timeline-dot {
    position: absolute;
    left: -0rem;
    top: 0rem;
    width: 4rem;
    height: 4rem;
    background: var(--white);
    border: 4px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    z-index: 2;
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.1);
    box-shadow: var(--shadow-primary);
}

.timeline-icon {
    font-size: 1.2rem;
}

/* Timeline Content */
.timeline-content {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-left: 2rem;
    border-left: 4px solid var(--primary);
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-content {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.timeline-date {
    font-size: 0.9rem;
    color: var(--primary);
    font-weight: 600;
    background: rgba(14, 165, 233, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
}

.timeline-badges {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.activo {
    background: var(--secondary);
    color: var(--white);
}

.status-badge.completado {
    background: var(--gray-600);
    color: var(--white);
}

.status-badge.mejora {
    background: #f59e0b;
    color: var(--white);
}

.status-badge.archivado {
    background: #ef4444;
    color: var(--white);
}

.favorite-badge {
    background: linear-gradient(45deg, #ffd700, #ffed4a);
    color: #92400e;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(255, 215, 0, 0.3);
}

.timeline-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.timeline-description {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.timeline-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    background: rgba(14, 165, 233, 0.1);
    color: var(--primary);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(14, 165, 233, 0.2);
}

/* Timeline Actions */
.timeline-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.action-btn {
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.action-btn.primary {
    background: var(--primary);
    color: var(--white);
}

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

.action-btn.secondary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.action-btn.secondary:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.action-btn.tertiary {
    background: var(--secondary);
    color: var(--white);
}

.action-btn.tertiary:hover {
    background: var(--secondary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* Modal Styles - CORREGIDO PARA QUE SE VEAN */
.project-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 9999; /* Aumentado z-index */
    display: flex; /* Cambio importante */
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    visibility: hidden; /* En lugar de display: none */
    transition: all 0.3s ease;
}

.project-modal.active {
    opacity: 1;
    visibility: visible; /* En lugar de display: flex */
}

.project-modal-container {
    background: var(--white);
    max-width: 800px;
    width: 100%;
    max-height: 80vh;
    border-radius: 16px;
    overflow: hidden;
    transform: scale(0.8);
    transition: transform 0.3s ease;
    box-shadow: var(--shadow-xl);
}

.project-modal.active .project-modal-container {
    transform: scale(1);
}

.project-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--gray-200);
    background: var(--primary);
    color: var(--white);
}

.project-modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

.project-modal-close {
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background 0.3s ease;
}

.project-modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.project-modal-content {
    padding: 2rem;
    overflow-y: auto;
    max-height: calc(80vh - 80px);
    color: var(--gray-700);
    line-height: 1.6;
}

/* Estilos para el contenido del modal */
.modal-section {
    margin-bottom: 2rem;
}

.modal-section h3 {
    color: var(--primary);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--gray-100);
}

.modal-section p {
    margin-bottom: 1rem;
}

.modal-section ul {
    padding-left: 1.5rem;
}

.modal-section li {
    margin-bottom: 0.5rem;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.tech-item {
    background: var(--gray-50);
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary);
}

.challenge-item {
    background: var(--gray-50);
    padding: 1rem;
    border-radius: 8px;
    border-left: 4px solid var(--secondary);
    margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .timeline {
        padding-left: 1rem;
    }
    
    .timeline::before {
        left: 1rem;
    }
    
    .timeline-dot {
        left: -1.5rem;
        width: 3rem;
        height: 3rem;
    }
    
    .timeline-content {
        margin-left: 1.5rem;
    }
    
    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .timeline-actions {
        flex-direction: column;
    }
    
    .action-btn {
        text-align: center;
        justify-content: center;
    }
    
    .project-modal {
        padding: 1rem;
    }
    
    .project-modal-content {
        padding: 1.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .timeline {
        padding-left: 1rem;
    }
    
    .timeline::before {
        left: 1rem;
    }
    
    .timeline-dot {
        left: -1.5rem;
        width: 3rem;
        height: 3rem;
    }
    
    .timeline-content {
        margin-left: 1.5rem;
    }
    
    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .timeline-actions {
        flex-direction: column;
    }
    
    .action-btn {
        text-align: center;
        justify-content: center;
    }
    
    .project-modal {
        padding: 1rem;
    }
    
    .project-modal-content {
        padding: 1.5rem;
    }
    
    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
}

/* PRUEBA CORRECCIÓN */

/* CORRECCIÓN PARA TIMELINE - AGREGAR AL FINAL DEL CSS */

/* Sobrescribir estilos conflictivos para elementos ocultos */
.timeline-item.hidden {
    opacity: 0 !important;
    transform: translateX(-30px) !important;
    pointer-events: none !important;
    height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    transition: all 0.3s ease !important;
    visibility: hidden !important;
    position: absolute !important;
    left: -9999px !important;
}

/* Asegurar que los elementos visibles se muestren correctamente */
.timeline-item:not(.hidden) {
    opacity: 1 !important;
    transform: translateX(0) !important;
    pointer-events: auto !important;
    height: auto !important;
    margin-bottom: 3rem !important;
    padding: 0 0 var(--spacing-2xl) 100px !important;
    overflow: visible !important;
    visibility: visible !important;
    position: relative !important;
    left: auto !important;
}

/* Corrección específica para el contenido del timeline */
.timeline-item.hidden .timeline-content,
.timeline-item.hidden .timeline-dot {
    display: none !important;
}

/* Animación mejorada para filtros */
.timeline-item {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

/* Responsive fixes para mobile */
@media (max-width: 768px) {
    .timeline-item.hidden {
        left: -9999px !important;
    }
    
    .timeline-item:not(.hidden) {
        padding-left: 60px !important;
        padding-bottom: var(--spacing-xl) !important;
    }
}

@media (max-width: 767px) {
    .timeline-item:not(.hidden) {
        padding-left: 60px !important;
        padding-bottom: var(--spacing-xl) !important;
    }
}

/* ===== ESTILOS PARA SUCCESS TOAST ===== */

/* Toast base */
.success-toast {
    position: fixed;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    padding: 16px 24px;
    border-radius: 12px;
    box-shadow: 
        0 10px 25px rgba(16, 185, 129, 0.4),
        0 4px 10px rgba(0, 0, 0, 0.1);
    z-index: 9999;
    min-width: 300px;
    max-width: 500px;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    opacity: 0;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Toast cuando está activo/visible */
.success-toast.show {
    top: 20px;
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Contenido del toast */
.toast-content {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    position: relative;
}

/* Icono del toast */
.toast-icon {
    font-size: 20px;
    color: #ffffff;
    line-height: 1;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Mensaje del toast */
.toast-message {
    flex: 1;
    font-size: 14px;
    line-height: 1.5;
    font-weight: 500;
    margin: 0;
}

/* Botón de cerrar */
.toast-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s ease;
    font-size: 14px;
    line-height: 1;
    flex-shrink: 0;
    margin-left: 8px;
}

.toast-close:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.1);
}

.toast-close:active {
    transform: scale(0.95);
}

/* Animación de entrada alternativa (slide down) */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-100px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* Animación de salida */
@keyframes slideUp {
    from {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    to {
        opacity: 0;
        transform: translateX(-50%) translateY(-100px);
    }
}

/* Toast de error (variante roja) */
.error-toast {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    box-shadow: 
        0 10px 25px rgba(239, 68, 68, 0.4),
        0 4px 10px rgba(0, 0, 0, 0.1);
}

.error-toast .toast-icon {
    color: #ffffff;
}

/* Toast de advertencia (variante amarilla) */
.warning-toast {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #1f2937;
    box-shadow: 
        0 10px 25px rgba(245, 158, 11, 0.4),
        0 4px 10px rgba(0, 0, 0, 0.1);
}

.warning-toast .toast-icon,
.warning-toast .toast-close {
    color: #1f2937;
}

.warning-toast .toast-close:hover {
    background: rgba(31, 41, 55, 0.1);
}

/* Toast de información (variante azul) */
.info-toast {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    box-shadow: 
        0 10px 25px rgba(59, 130, 246, 0.4),
        0 4px 10px rgba(0, 0, 0, 0.1);
}

/* Responsive para móviles */
@media (max-width: 768px) {
    .success-toast,
    .error-toast,
    .warning-toast,
    .info-toast {
        left: 10px;
        right: 10px;
        transform: none;
        min-width: auto;
        max-width: none;
        width: calc(100% - 20px);
    }
    
    .success-toast.show,
    .error-toast.show,
    .warning-toast.show,
    .info-toast.show {
        transform: none;
    }
    
    .toast-message {
        font-size: 13px;
    }
    
    .toast-icon {
        font-size: 18px;
    }
}

/* Efectos adicionales */
.success-toast::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #ffffff, rgba(255, 255, 255, 0.5));
    border-radius: 12px 12px 0 0;
}

/* Animación sutil de pulso para el icono */
.toast-icon i {
    animation: gentlePulse 2s ease-in-out infinite;
}

@keyframes gentlePulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Efecto hover en el toast completo */
.success-toast:hover,
.error-toast:hover,
.warning-toast:hover,
.info-toast:hover {
    transform: translateX(-50%) translateY(-2px);
    box-shadow: 
        0 15px 35px rgba(16, 185, 129, 0.5),
        0 8px 15px rgba(0, 0, 0, 0.1);
}

@media (max-width: 768px) {
    .success-toast:hover,
    .error-toast:hover,
    .warning-toast:hover,
    .info-toast:hover {
        transform: translateY(-2px);
    }
}

/* Transición suave para diferentes tipos de toast */
.error-toast:hover {
    box-shadow: 
        0 15px 35px rgba(239, 68, 68, 0.5),
        0 8px 15px rgba(0, 0, 0, 0.1);
}

.warning-toast:hover {
    box-shadow: 
        0 15px 35px rgba(245, 158, 11, 0.5),
        0 8px 15px rgba(0, 0, 0, 0.1);
}

.info-toast:hover {
    box-shadow: 
        0 15px 35px rgba(59, 130, 246, 0.5),
        0 8px 15px rgba(0, 0, 0, 0.1);
}

/* Accesibilidad - Reducir animaciones si el usuario lo prefiere */
@media (prefers-reduced-motion: reduce) {
    .success-toast,
    .error-toast,
    .warning-toast,
    .info-toast {
        transition: opacity 0.3s ease;
    }
    
    .toast-icon i {
        animation: none;
    }
    
    .success-toast.show,
    .error-toast.show,
    .warning-toast.show,
    .info-toast.show {
        transition: opacity 0.3s ease;
    }
}

/* Toast stack - múltiples toasts */
.success-toast:nth-of-type(2) {
    top: 90px;
}

.success-toast:nth-of-type(3) {
    top: 160px;
}

.success-toast:nth-of-type(4) {
    top: 230px;
}

/* En móviles, stack más compacto */
@media (max-width: 768px) {
    .success-toast:nth-of-type(2) {
        top: 80px;
    }
    
    .success-toast:nth-of-type(3) {
        top: 140px;
    }
    
    .success-toast:nth-of-type(4) {
        top: 200px;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .success-toast {
        background: linear-gradient(135deg, #065f46, #047857);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .error-toast {
        background: linear-gradient(135deg, #991b1b, #b91c1c);
    }
    
    .warning-toast {
        background: linear-gradient(135deg, #92400e, #b45309);
        color: #f9fafb;
    }
    
    .warning-toast .toast-icon,
    .warning-toast .toast-close {
        color: #f9fafb;
    }
    
    .warning-toast .toast-close:hover {
        background: rgba(249, 250, 251, 0.1);
    }
    
    .info-toast {
        background: linear-gradient(135deg, #1e40af, #2563eb);
    }
}