/* Reset y Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Tema por defecto (Azul) */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --transition: all 0.3s ease;
    --border-radius: 12px;
    --sidebar-width: 280px;
}

/* Tema Oscuro */
[data-theme="dark"] {
    --primary-color: #ff6b35;
    --secondary-color: #e55a2b;
    --accent-color: #ff8c42;
    --text-primary: #ffffff;
    --text-secondary: #d1d5db;
    --text-light: #9ca3af;
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #404040;
    --border-color: #404040;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --gradient-primary: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    --gradient-secondary: linear-gradient(135deg, #ff6b35 0%, #c44569 100%);
}

/* Tema Púrpura */
[data-theme="purple"] {
    --primary-color: #8b5cf6;
    --secondary-color: #7c3aed;
    --accent-color: #a78bfa;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --bg-primary: #f8fafc;
    --bg-secondary: #f1f5f9;
    --bg-tertiary: #e2e8f0;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(139, 92, 246, 0.1), 0 2px 4px -1px rgba(139, 92, 246, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(139, 92, 246, 0.1), 0 4px 6px -2px rgba(139, 92, 246, 0.05);
    --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);
    --gradient-secondary: linear-gradient(135deg, #d946ef 0%, #f0abfc 100%);
}

/* Tema Esmeralda */
[data-theme="emerald"] {
    --primary-color: #10b981;
    --secondary-color: #059669;
    --accent-color: #34d399;
    --text-primary: #374151;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(16, 185, 129, 0.1), 0 2px 4px -1px rgba(16, 185, 129, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(16, 185, 129, 0.1), 0 4px 6px -2px rgba(16, 185, 129, 0.05);
    --gradient-primary: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-secondary: linear-gradient(135deg, #34d399 0%, #6ee7b7 100%);
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

/* Transiciones específicas para elementos que no deben tener transición en otras propiedades */
.category-card, .modal-project-card, .theme-option {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Sidebar Navigation */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.sidebar-content {
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.logo h2 {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 3rem;
}

.nav-links {
    list-style: none;
    flex-grow: 1;
}

.nav-links li {
    margin-bottom: 0.5rem;
}

.nav-link {
    display: block;
    padding: 1rem 1.5rem;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: 12px;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
}

.nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 0 2px 2px 0;
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
}

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

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.section {
    min-height: auto;
    padding: 40px 0;
    display: flex;
    align-items: center;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

/* Home Section */
.home-section {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.home-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.main-title {
    margin-bottom: 2rem;
}

.greeting {
    display: block;
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.name {
    display: block;
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.1;
}

.subtitle {
    display: block;
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--primary-color);
}

.description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
    text-align: center;
}

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

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

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

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

/* Hero Image */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-container {
    position: relative;
    width: 300px;
    height: 300px;
}

.profile-photo {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow-lg);
    border: 6px solid white;
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.profile-photo:hover {
    transform: scale(1.05);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
}

.profile-placeholder {
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
    box-shadow: var(--shadow-lg);
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.floating-icon {
    position: absolute;
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
    box-shadow: var(--shadow);
    animation: float 6s ease-in-out infinite;
}

.floating-icon:nth-child(1) {
    top: 20%;
    right: -10%;
    animation-delay: 0s;
}

.floating-icon:nth-child(2) {
    bottom: 30%;
    left: -15%;
    animation-delay: 2s;
}

.floating-icon:nth-child(3) {
    top: 60%;
    right: -5%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.skills-overview {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.skill-item {
    text-align: center;
}

.skill-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.skill-label {
    font-size: 0.9rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Education Timeline */
.education-timeline h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.timeline-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.timeline-item:last-child {
    border-bottom: none;
}

.timeline-year {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
    min-width: 60px;
}

.timeline-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Services Section */
.services-section {
    background: var(--bg-primary);
    padding: 20px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

/* Services Slider */
.services-slider {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.services-slider .slider-container {
    overflow: hidden;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 1rem;
    background: white;
}

.services-slider .slider-wrapper {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.services-slider .slider-item {
    min-width: 100%;
    padding: 2rem;
    box-sizing: border-box;
    text-align: center;
}

.service-icon-slider {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.service-content-slider h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.service-content-slider p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
    font-size: 1rem;
}

.service-tech-slider {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.service-tech-slider span {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.services-counter {
    text-align: center;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1rem;
    margin-top: 0.5rem;
}

.services-counter span {
    color: var(--primary-color);
    font-weight: 600;
}

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

[data-theme="dark"] .service-card {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .service-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    transform: translateY(-10px);
}

[data-theme="dark"] .service-card h3 {
    color: var(--text-primary);
}

[data-theme="dark"] .service-card p {
    color: var(--text-secondary);
}

/* Estilos más específicos para asegurar aplicación del tema oscuro */
body[data-theme="dark"] .service-card {
    background: #2d2d2d !important;
    border: 1px solid #404040;
    color: #ffffff;
}

body[data-theme="dark"] .service-card h3 {
    color: #ffffff !important;
}

body[data-theme="dark"] .service-card p {
    color: #d1d5db !important;
}

/* ===== SKILLS SECTION ===== */
.skills-section {
    padding: 3rem 0;
    background: var(--bg-primary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.skill-category {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
    height: fit-content;
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] .skill-category {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .skill-category:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1.2rem;
    padding-bottom: 0.8rem;
    border-bottom: 2px solid #f0f0f0;
}

[data-theme="dark"] .category-header {
    border-bottom-color: var(--border-color);
}

.category-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    box-shadow: 0 3px 12px rgba(37, 99, 235, 0.3);
    flex-shrink: 0;
}

.category-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

[data-theme="dark"] .category-header h3 {
    color: var(--text-primary);
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.skill-item {
    opacity: 0;
    transform: translateX(-20px);
    animation: slideInSkill 0.6s ease-out forwards;
}

.skill-item:nth-child(1) { animation-delay: 0.1s; }
.skill-item:nth-child(2) { animation-delay: 0.2s; }
.skill-item:nth-child(3) { animation-delay: 0.3s; }
.skill-item:nth-child(4) { animation-delay: 0.4s; }

@keyframes slideInSkill {
    0% {
        opacity: 0;
        transform: translateX(-20px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

.skill-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.3rem;
}

.skill-name {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

[data-theme="dark"] .skill-name {
    color: var(--text-primary);
}

.skill-percentage {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.8rem;
}

.skill-bar {
    height: 6px;
    background: #f0f0f0;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

[data-theme="dark"] .skill-bar {
    background: var(--bg-tertiary);
}

.skill-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 10px;
    width: 0;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

/* Responsive */
@media (max-width: 1024px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.2rem;
    }
}

@media (max-width: 768px) {
    .skills-section {
        padding: 2rem 0;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-top: 1.5rem;
    }
    
    .skill-category {
        padding: 1.2rem;
    }
    
    .category-header {
        gap: 0.6rem;
        margin-bottom: 1rem;
        padding-bottom: 0.6rem;
    }
    
    .category-icon {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .category-header h3 {
        font-size: 1rem;
    }
    
    .skill-items {
        gap: 0.8rem;
    }
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin: 0 auto 1.5rem;
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-tech {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.service-tech span {
    background: var(--bg-secondary);
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Portfolio Section */
.portfolio-section {
    background: var(--bg-secondary);
    padding: 20px 0;
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.8rem 1.5rem;
    border: 2px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

/* Portfolio Categories */
.portfolio-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.category-card {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
    animation: slideInUp 0.6s ease-out forwards;
}

[data-theme="dark"] .category-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .category-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.category-card:nth-child(1) { animation-delay: 0.1s; }
.category-card:nth-child(2) { animation-delay: 0.2s; }
.category-card:nth-child(3) { animation-delay: 0.3s; }
.category-card:nth-child(4) { animation-delay: 0.4s; }

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.category-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
}

.category-card:hover::before {
    transform: scaleY(1);
}

.category-card:hover .category-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

.category-card:hover .category-arrow {
    transform: translateX(8px) scale(1.2);
}

.category-card:active {
    transform: translateY(-5px) scale(0.98);
    transition: all 0.1s ease;
}

.category-icon {
    flex: 0 0 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.category-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s ease;
}

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

.category-content {
    flex: 1;
}

.category-content h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.category-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 0.8rem;
}

.category-stats {
    color: var(--text-light);
    font-size: 0.85rem;
    font-weight: 500;
}

.project-count {
    color: var(--primary-color);
    font-weight: 600;
}

.category-arrow {
    flex: 0 0 30px;
    color: var(--text-light);
    font-size: 1.2rem;
    transition: var(--transition);
}

.category-card:hover .category-arrow {
    color: var(--primary-color);
    transform: translateX(5px);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0);
    backdrop-filter: blur(0px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
}

.modal.opening {
    animation: modalFadeIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.modal.closing {
    animation: modalFadeOut 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.modal-content {
    background: white;
    border-radius: 20px;
    width: 90%;
    max-width: 1000px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    transform: scale(0.7) translateY(50px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal.show .modal-content {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.modal.opening .modal-content {
    animation: modalContentSlideIn 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.modal.closing .modal-content {
    animation: modalContentSlideOut 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.modal-header h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.modal-close {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow);
}

.modal-body {
    padding: 1.5rem;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.modal-project-card {
    background: var(--bg-secondary);
    border-radius: 15px;
    padding: 1.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(30px) scale(0.9);
    animation: projectCardSlideIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .modal-project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .modal-project-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    transform: translateY(-5px) scale(1.02);
}

/* Mejoras de contraste para textos en tema oscuro */
[data-theme="dark"] .category-card h3,
[data-theme="dark"] .service-card h3,
[data-theme="dark"] .modal-project-card h4 {
    color: var(--text-primary);
}

[data-theme="dark"] .category-card p,
[data-theme="dark"] .service-card p,
[data-theme="dark"] .modal-project-card p {
    color: var(--text-secondary);
}

[data-theme="dark"] .category-count {
    background: var(--primary-color);
    color: white;
}

[data-theme="dark"] .tech-tag {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .project-link {
    background: var(--primary-color);
    color: white;
}

[data-theme="dark"] .project-link:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.modal-project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
    transition: left 0.8s ease;
}

.modal-project-card:hover::before {
    left: 100%;
}

.modal-project-card:nth-child(1) { animation-delay: 0.1s; }
.modal-project-card:nth-child(2) { animation-delay: 0.2s; }
.modal-project-card:nth-child(3) { animation-delay: 0.3s; }
.modal-project-card:nth-child(4) { animation-delay: 0.4s; }
.modal-project-card:nth-child(5) { animation-delay: 0.5s; }
.modal-project-card:nth-child(6) { animation-delay: 0.6s; }

.modal-project-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 15px 30px rgba(37, 99, 235, 0.15);
}

.modal-project-card h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.modal-project-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.modal-project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.modal-project-tech .tech-tag {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.modal-project-links {
    display: flex;
    gap: 0.8rem;
}

.modal-project-links .project-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.modal-project-links .project-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

.modal-project-links .project-link:hover::before {
    left: 100%;
}

.modal-project-links .project-link:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
}

.modal-project-links .project-link:active {
    transform: translateY(-1px) scale(0.98);
    transition: all 0.1s ease;
}

/* Animaciones Keyframes */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        background-color: rgba(0, 0, 0, 0);
        backdrop-filter: blur(0px);
    }
    to {
        opacity: 1;
        background-color: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(8px);
    }
}

@keyframes modalFadeOut {
    from {
        opacity: 1;
        background-color: rgba(0, 0, 0, 0.6);
        backdrop-filter: blur(8px);
    }
    to {
        opacity: 0;
        background-color: rgba(0, 0, 0, 0);
        backdrop-filter: blur(0px);
    }
}

@keyframes modalContentSlideIn {
    0% {
        opacity: 0;
        transform: scale(0.7) translateY(50px) rotateX(10deg);
    }
    50% {
        opacity: 0.8;
        transform: scale(0.9) translateY(10px) rotateX(5deg);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0) rotateX(0deg);
    }
}

@keyframes modalContentSlideOut {
    0% {
        opacity: 1;
        transform: scale(1) translateY(0) rotateX(0deg);
    }
    100% {
        opacity: 0;
        transform: scale(0.8) translateY(-30px) rotateX(-5deg);
    }
}

@keyframes projectCardSlideIn {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.9) rotateY(5deg);
    }
    50% {
        opacity: 0.7;
        transform: translateY(10px) scale(0.95) rotateY(2deg);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1) rotateY(0deg);
    }
}

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

@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        transform: translate3d(0, -8px, 0);
    }
    70% {
        transform: translate3d(0, -4px, 0);
    }
    90% {
        transform: translate3d(0, -2px, 0);
    }
}

/* Responsive para categorías */
@media (max-width: 768px) {
    .portfolio-categories {
        grid-template-columns: 1fr;
    }
    
    .category-card {
        padding: 1rem;
    }
    
    .modal-content {
        width: 95%;
        max-height: 90vh;
    }
    
    .modal-projects-grid {
        grid-template-columns: 1fr;
    }
}

/* Theme Selector */
.theme-selector {
    margin-top: auto;
    padding: 1rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.theme-selector-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.theme-selector-header i {
    font-size: 1rem;
    color: var(--primary-color);
}

.theme-options {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.theme-option {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.6rem 0.8rem;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.85rem;
    color: var(--text-secondary);
    width: 100%;
    text-align: left;
}

.theme-option:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
    transform: translateX(3px);
}

.theme-option.active {
    background: rgba(37, 99, 235, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 500;
}

.theme-preview {
    display: flex;
    gap: 0.2rem;
}

.color-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.portfolio-slider .slider-container {
    overflow: hidden;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    background: white;
}

.portfolio-slider .slider-wrapper {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.portfolio-slider .slider-item {
    min-width: 100%;
    padding: 2rem;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.portfolio-image-slider {
    flex: 0 0 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2.5rem;
}

.portfolio-content-slider {
    flex: 1;
}

.portfolio-content-slider h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.portfolio-content-slider p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.5;
    font-size: 0.95rem;
}

.portfolio-tech-slider {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.8rem;
}

.portfolio-tech-slider .tech-tag {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.portfolio-links-slider {
    display: flex;
    gap: 0.6rem;
}

.portfolio-links-slider .portfolio-link {
    width: 30px;
    height: 30px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.8rem;
}

.portfolio-links-slider .portfolio-link:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow);
}

.portfolio-item {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.portfolio-image {
    height: 200px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    position: relative;
}

.portfolio-content {
    padding: 2rem;
}

.portfolio-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.portfolio-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

.tech-tag {
    background: var(--bg-secondary);
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Experience Section */
.experience-section {
    background: var(--bg-secondary);
    padding: 20px 0;
}

.experience-timeline {
    max-width: 800px;
    margin: 0 auto;
}

/* Experience Slider V2 */
.experience-slider {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.slider-container {
    overflow: hidden;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    margin-bottom: 1rem;
    background: white;
}

.slider-wrapper {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.slider-item {
    min-width: 100%;
    padding: 1.5rem;
    box-sizing: border-box;
}

.slider-item h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.slider-item h4 {
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.slider-date {
    color: var(--text-light);
    font-size: 0.9rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 1.5rem;
    background: var(--bg-secondary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
}

.slider-item p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    font-size: 1.1rem;
}

.slider-item ul {
    list-style: none;
    padding-left: 0;
}

.slider-item li {
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 2rem;
    line-height: 1.6;
}

.slider-item li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    background: rgba(37, 99, 235, 0.1);
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
}

.slider-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 0.5rem;
}

.slider-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.slider-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow);
}

.slider-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.slider-dots {
    display: flex;
    gap: 0.8rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

.dot:hover {
    background: var(--accent-color);
}

.experience-counter {
    text-align: center;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 1rem;
}

.experience-counter span {
    color: var(--primary-color);
    font-weight: 600;
}

.experience-item {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    position: relative;
}

[data-theme="dark"] .experience-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Mejoras de contraste para textos de experiencia en tema oscuro */
[data-theme="dark"] .experience-title h3 {
    color: var(--text-primary);
}

[data-theme="dark"] .experience-title h4 {
    color: var(--primary-color);
}

[data-theme="dark"] .experience-period {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .experience-description {
    color: var(--text-secondary);
}

[data-theme="dark"] .experience-achievements li {
    color: var(--text-secondary);
}

[data-theme="dark"] .experience-achievements li::before {
    color: var(--primary-color);
}

.experience-item::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

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

.experience-title h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.experience-title h4 {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 500;
}

.experience-period {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 15px;
    font-size: 0.9rem;
    font-weight: 500;
}

.experience-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.experience-achievements {
    list-style: none;
}

.experience-achievements li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.experience-achievements li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 0.8rem;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: start;
}

.contact-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

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

.contact-details h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--text-secondary);
}

.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

/* Responsive Design */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .home-content,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .skills-overview {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .name {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 200px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .skills-overview {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Animaciones adicionales */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

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

.portfolio-item.hidden {
    display: none;
}

.portfolio-item.show {
    display: block;
    animation: fadeInUp 0.6s ease forwards;
}