/* ========================================
   CSS Variables & Theme Configuration
   ======================================== */
:root {
    /* Light Theme Colors - GREEN THEME */
    --primary-color: #059669;
    --primary-dark: #047857;
    --primary-light: #10b981;
    --secondary-color: #34d399;
    --accent-color: #6ee7b7;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f0fdf4;
    --bg-tertiary: #dcfce7;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    
    --border-color: #d1fae5;
    --shadow-sm: 0 1px 2px 0 rgba(5, 150, 105, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(5, 150, 105, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(5, 150, 105, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(5, 150, 105, 0.1);
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
    
    /* Spacing - REDUCIDO */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 2.5rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

[data-theme="dark"] {
    --primary-color: #10b981;
    --primary-dark: #059669;
    --primary-light: #34d399;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    
    --border-color: #334155;
    --shadow-sm: 0 1px 2px 0 rgba(16, 185, 129, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(16, 185, 129, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(16, 185, 129, 0.5);
    --shadow-xl: 0 20px 25px -5px rgba(16, 185, 129, 0.5);
}

/* ========================================
   Reset & Base Styles
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.75rem;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1.125rem, 2.5vw, 1.5rem); }

p {
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

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

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

/* ========================================
   Layout Components
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.fade-in {
    opacity: 1;
    transform: translateY(0);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.subsection-title {
    font-size: 1.25rem;
    margin: var(--spacing-md) 0 var(--spacing-sm) 0;
    color: var(--text-primary);
}

/* ========================================
   Navigation Bar
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-base);
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

[data-theme="dark"] .navbar {
    background-color: rgba(15, 23, 42, 0.95);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-brand a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    transition: transform var(--transition-fast);
}

.nav-brand a:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-sm);
    align-items: center;
}

.nav-menu a {
    color: var(--text-primary);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-size: 0.9375rem;
}

.nav-menu a:hover {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
}

.theme-toggle {
    background: none;
    border: 2px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--primary-color);
    transform: rotate(20deg);
}

/* ========================================
   Scroll to Top Button
   ======================================== */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

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

.hero-greeting {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.hero-title {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.hero-description {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

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

/* ========================================
   Social Links
   ======================================== */
.hero-social {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

.hero-social a {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 1.5rem;
    transition: all var(--transition-base);
}

.hero-social a:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   About Section
   ======================================== */
.about {
    background-color: var(--bg-secondary);
}

.about-content {
    display: grid;
    gap: var(--spacing-lg);
}

.about-text p {
    font-size: 1.0625rem;
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.stat-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

/* ========================================
   Timeline (Experience)
   ======================================== */
.timeline {
    position: relative;
    padding-left: 2rem;
}

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

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.timeline-item.fade-in {
    opacity: 1;
    transform: translateX(0);
}

.timeline-marker {
    position: absolute;
    left: -2.5rem;
    top: 0;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 4px solid var(--bg-primary);
    box-shadow: 0 0 0 4px var(--primary-color);
}

.timeline-content {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.timeline-header {
    margin-bottom: var(--spacing-sm);
}

.timeline-header h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.timeline-company {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.0625rem;
    margin-right: var(--spacing-sm);
}

.timeline-date {
    color: var(--text-tertiary);
    font-size: 0.875rem;
    font-weight: 500;
}

.timeline-company-description {
    margin-bottom: var(--spacing-sm);
}

.timeline-details {
    list-style: none;
    margin-bottom: var(--spacing-sm);
}

.timeline-details li {
    margin-bottom: var(--spacing-xs);
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.timeline-details li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.timeline-details strong {
    color: var(--text-primary);
}

.timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

/* ========================================
   Tags
   ======================================== */
.tag {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

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

/* ========================================
   Projects Section - CON ESPACIO PARA GIFs
   ======================================== */
.projects {
    background-color: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.project-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    opacity: 0;
    transform: translateY(20px);
    border: 1px solid var(--border-color);
}

.project-card.fade-in {
    opacity: 1;
    transform: translateY(0);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.project-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.project-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.project-company {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.project-date {
    color: var(--text-tertiary);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    font-size: 0.9375rem;
}

/* NUEVO: Sección para GIFs de demostración */
.project-demo {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 2px dashed var(--border-color);
}

.project-demo h4 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
}

.project-demo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.demo-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.demo-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.demo-item img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
}

.demo-caption {
    padding: var(--spacing-xs);
    text-align: center;
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    background-color: var(--bg-tertiary);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.project-metrics {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
}

.metric {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.metric i {
    color: var(--primary-color);
}

/* ========================================
   Homelab Section - SIMPLIFICADO
   ======================================== */
.homelab {
    background-color: var(--bg-primary);
}

.homelab-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg) auto;
    font-size: 1.0625rem;
    color: var(--text-secondary);
}

.homelab-overview {
    margin-bottom: var(--spacing-lg);
}

.homelab-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    color: white;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.homelab-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.homelab-card h3 {
    color: white;
    margin-bottom: var(--spacing-sm);
}

.homelab-card p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
}

/* VMs Grid simplificado sin estadísticas */
.vms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.vm-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
    opacity: 0;
    transform: scale(0.95);
}

.vm-card.fade-in {
    opacity: 1;
    transform: scale(1);
}

.vm-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.vm-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.vm-header i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.vm-header h4 {
    flex: 1;
    margin: 0;
    color: var(--text-primary);
    font-size: 1.125rem;
}

.vm-status {
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.vm-status.running {
    background-color: #10b981;
    color: white;
}

.vm-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
    font-size: 0.9375rem;
}

.vm-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.homelab-skills {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.skill-tag {
    padding: 0.375rem 0.75rem;
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-tertiary));
    color: var(--text-primary);
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.skill-tag:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* ========================================
   Skills Section - COMPACTO 2 COLUMNAS
   ======================================== */
.skills {
    background-color: var(--bg-secondary);
}

.skills-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.skills-category {
    background-color: var(--bg-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.category-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--border-color);
    font-size: 1.125rem;
}

.category-title i {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.skills-grid {
    display: grid;
    gap: var(--spacing-sm);
}

.skill-item {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    background-color: var(--bg-secondary);
    transition: all var(--transition-fast);
}

.skill-item:hover {
    background-color: var(--bg-tertiary);
    transform: translateX(3px);
}

.skill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.skill-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9375rem;
}

.skill-level {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.skill-bar {
    height: 6px;
    background-color: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
    transition: width 1s ease;
}

.soft-skills {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.soft-skill-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    text-align: center;
    transition: all var(--transition-base);
}

.soft-skill-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
    background-color: var(--bg-tertiary);
}

.soft-skill-card i {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.soft-skill-card h4 {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-size: 0.9375rem;
}

.soft-skill-card p {
    color: var(--text-secondary);
    font-size: 0.8125rem;
    margin: 0;
}

/* ========================================
   Education Section
   ======================================== */
.education {
    background-color: var(--bg-primary);
}

.education-content {
    display: grid;
    gap: var(--spacing-lg);
}

.education-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.education-icon {
    width: 55px;
    height: 55px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--radius-lg);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.education-details h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.education-institution {
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
    font-size: 0.9375rem;
}

.education-date {
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
}

.cert-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.cert-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.cert-card i {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.cert-card h4 {
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.cert-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.cert-org {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.8125rem;
}

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

.language-item {
    margin-bottom: var(--spacing-md);
}

.language-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.language-name {
    font-weight: 600;
    color: var(--text-primary);
}

.language-level {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.language-bar {
    height: 8px;
    background-color: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.language-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 1s ease;
}

/* Estilo para iframe de constancias */
.languages iframe {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-top: var(--spacing-sm);
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    background-color: var(--bg-secondary);
}

.contact-content {
    max-width: 900px;
    margin: 0 auto;
}

.contact-intro {
    text-align: center;
    font-size: 1.0625rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
}

.contact-method {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-details h4 {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.contact-details a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    font-size: 0.9375rem;
}

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

.contact-details p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.9375rem;
}

/* ========================================
   Footer - STICKY
   ======================================== */
.footer {
    position: sticky;
    bottom: 0;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    z-index: 100;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-left p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 0.875rem;
}

.footer-social {
    display: flex;
    gap: var(--spacing-xs);
}

.footer-social a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 1.125rem;
    transition: all var(--transition-base);
}

.footer-social a:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    transform: translateY(-3px);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .nav-menu {
        gap: var(--spacing-xs);
    }
    
    .skills-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .navbar .container {
        flex-wrap: wrap;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
        order: 3;
        margin-top: var(--spacing-sm);
    }
    
    .nav-brand {
        order: 1;
    }
    
    .theme-toggle {
        order: 2;
    }
    
    .hero {
        min-height: auto;
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        justify-content: center;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline {
        padding-left: 1.5rem;
    }
    
    .timeline-marker {
        left: -2.25rem;
    }
    
    .skills-container {
        grid-template-columns: 1fr;
    }
    
    .soft-skills {
        grid-template-columns: 1fr;
    }
    
    .cert-grid,
    .contact-methods {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .scroll-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-social {
        flex-wrap: wrap;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .project-demo-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .navbar,
    .theme-toggle,
    .hero-buttons,
    .hero-social,
    .scroll-to-top {
        display: none;
    }
    
    .footer {
        position: static;
    }
    
    .section {
        page-break-inside: avoid;
        padding: 1rem 0;
    }
    
    body {
        background-color: white;
        color: black;
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ========================================
   Accessibility
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ========================================
   Custom Scrollbar
   ======================================== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ========================================
   Selection
   ======================================== */
::selection {
    background-color: var(--primary-color);
    color: white;
}

::-moz-selection {
    background-color: var(--primary-color);
    color: white;
}

/* ========================================
   Dark Mode Specific Adjustments
   ======================================== */
[data-theme="dark"] .project-card,
[data-theme="dark"] .vm-card,
[data-theme="dark"] .stat-card {
    background-color: rgba(30, 41, 59, 0.8);
}

[data-theme="dark"] .timeline-content,
[data-theme="dark"] .education-item,
[data-theme="dark"] .cert-card {
    background-color: rgba(30, 41, 59, 0.6);
}

[data-theme="dark"] .skill-item,
[data-theme="dark"] .soft-skill-card,
[data-theme="dark"] .contact-method {
    background-color: rgba(30, 41, 59, 0.5);
}
/* ========================================
   NUEVA SECCIÓN DE PROYECTOS DESTACADOS
   ======================================== */

/* Proyecto Destacado con GIFs */
.project-featured {
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--border-color);
    margin-bottom: var(--spacing-xl);
}

.project-featured-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.project-icon-large {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: var(--radius-xl);
    font-size: 2.5rem;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
}

.project-header-info h3 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.project-meta {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.project-type, .project-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.project-type i, .project-date i {
    color: var(--primary-color);
}

.project-description-large {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* Showcase de Demos */
.project-demo-showcase {
    background-color: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.project-demo-showcase h4 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.demo-subtitle {
    color: var(--text-tertiary);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.demo-grid-large {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.demo-card {
    position: relative;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid var(--border-color);
}

.demo-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.demo-image-wrapper {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background-color: var(--bg-tertiary);
}

.demo-gif {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block; /* Oculto hasta que tengas los GIFs reales */
}

/* Cuando tengas GIFs, cambia display: none a display: block en .demo-gif 
   y añade display: none a .demo-placeholder */

.demo-placeholder {
    width: 100%;
    height: 100%;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.demo-placeholder i {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.5;
}

.demo-info {
    padding: var(--spacing-md);
}

.demo-info h5 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
}

.demo-info p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

.demo-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(5, 150, 105, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.demo-card:hover .demo-overlay {
    opacity: 1;
}

.demo-overlay i {
    color: white;
    font-size: 2.5rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Tags y Métricas Grandes */
.project-tags-large {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.project-metrics-large {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-primary);
    border-radius: var(--radius-lg);
}

.metric-large {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--bg-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

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

.metric-large i {
    font-size: 2rem;
    color: var(--primary-color);
}

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

.metric-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.metric-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ========================================
   LIGHTBOX MODAL
   ======================================== */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    padding: var(--spacing-lg);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.lightbox-content img {
    width: 100%;
    height: auto;
    max-height: 70vh;
    object-fit: contain;
    display: block;
    background-color: var(--bg-secondary);
}

.lightbox-info {
    padding: var(--spacing-lg);
    background-color: var(--bg-primary);
}

.lightbox-info h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.lightbox-info p {
    color: var(--text-secondary);
    margin: 0;
    font-size: 1rem;
}

.lightbox-close {
    position: fixed;
    top: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    z-index: 10001;
    box-shadow: var(--shadow-lg);
}

.lightbox-close:hover {
    transform: rotate(90deg) scale(1.1);
}

.lightbox-nav {
    position: fixed;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 2rem;
    pointer-events: none;
    z-index: 10000;
}

.lightbox-prev,
.lightbox-next {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    pointer-events: all;
    box-shadow: var(--shadow-lg);
}

.lightbox-prev:hover,
.lightbox-next:hover {
    transform: scale(1.1);
}

/* Responsive para Lightbox */
@media (max-width: 768px) {
    .lightbox-content {
        max-width: 95vw;
        max-height: 95vh;
    }

    .lightbox-close {
        top: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }

    .lightbox-nav {
        padding: 0 1rem;
    }

    .lightbox-prev,
    .lightbox-next {
        width: 45px;
        height: 45px;
    }

    .demo-grid-large {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 480px) {
    .project-featured-header {
        flex-direction: column;
        text-align: center;
    }

    .project-icon-large {
        width: 70px;
        height: 70px;
        font-size: 2rem;
    }

    .demo-grid-large {
        grid-template-columns: 1fr;
    }

    .project-metrics-large {
        grid-template-columns: 1fr;
    }
}