:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --bg-light: #ecf0f1;
    --bg-white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navegación */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--bg-white);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: all 0.3s ease;
}

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

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.nav-logo {
    height: 50px;
    width: auto;
    transition: transform 0.3s ease;
}

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

.nav-brand h1 {
    font-size: 1.8rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.2rem;
}

.nav-brand .tagline {
    font-size: 0.85rem;
    color: var(--text-light);
    display: block;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: var(--secondary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

/* Botón hamburguesa */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
    width: 40px;
    height: 40px;
    position: relative;
}

.hamburger {
    width: 24px;
    height: 2px;
    background-color: var(--text-dark);
    transition: all 0.3s ease-in-out;
    border-radius: 2px;
    position: absolute;
}

.hamburger:nth-child(1) {
    top: 12px;
}

.hamburger:nth-child(2) {
    top: 19px;
}

.hamburger:nth-child(3) {
    top: 26px;
}

.nav-toggle[aria-expanded="true"] .hamburger:nth-child(1) {
    transform: rotate(45deg);
    top: 19px;
}

.nav-toggle[aria-expanded="true"] .hamburger:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] .hamburger:nth-child(3) {
    transform: rotate(-45deg);
    top: 19px;
}

/* Overlay para menú móvil */
.menu-overlay {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}

.menu-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}


/* Hero Section */
.hero {
    margin-top: 80px;
    padding: 80px 0;
    background: var(--gradient-primary);
    color: white;
    text-align: center;
}

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

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0.95;
}

.hero-tagline {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    opacity: 1;
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    font-style: italic;
}

.ia-roles {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6rem;
    margin: 0 0 2rem 0;
    padding: 0 1rem;
    min-height: 3rem;
}

.ia-roles .role-badge {
    background: rgba(245, 87, 108, 0.25);
    backdrop-filter: blur(10px);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 2px solid rgba(245, 87, 108, 0.5);
    transition: all 0.3s ease;
    white-space: nowrap;
    min-height: 2rem;
    line-height: 1.2;
    box-sizing: border-box;
}

.ia-roles .role-badge:hover {
    background: rgba(245, 87, 108, 0.4);
    border-color: rgba(245, 87, 108, 0.7);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(245, 87, 108, 0.3);
}

.professional-roles {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin: 2rem 0;
    padding: 0 1rem;
    min-height: 3.5rem;
}

.role-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 600;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    white-space: nowrap;
    min-height: 2.4rem;
    line-height: 1.2;
    box-sizing: border-box;
}

.role-badge:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

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

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* Secciones */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.section-header h3 {
    font-size: 1.3rem;
    color: var(--secondary-color);
    font-weight: 500;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* Sobre mí */
.about {
    background: var(--bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 3rem;
    align-items: start;
}

.about-profile {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.profile-photo {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

.profile-photo:hover {
    transform: scale(1.02);
}

.profile-badges {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.badge-logo {
    height: 70px;
    width: auto;
    max-width: 100px;
    object-fit: contain;
    background: white;
    padding: 0.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.about-text {
    flex: 1;
}

.about-text .lead {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.values {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    margin: 2rem 0;
    box-shadow: var(--shadow);
}

.values h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.values ul {
    list-style: none;
}

.values li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--bg-light);
    font-size: 1.05rem;
}

.values li:last-child {
    border-bottom: none;
}

.credentials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.credential-item {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
}

.credential-item strong {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.credential-item span {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Servicios */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border-top: 4px solid var(--secondary-color);
}

.service-card.featured {
    border-top: 4px solid #e74c3c;
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.05) 0%, rgba(255, 255, 255, 1) 100%);
}

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

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service-details {
    list-style: none;
}

.service-details li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.service-details li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

/* AI Evolution Section */
.ai-evolution {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.ai-evolution .section-header h2,
.ai-evolution .section-header p {
    color: white;
}

.evolution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.evolution-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: white;
}

.evolution-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    opacity: 0.95;
}

.ai-benefits {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.benefit-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.benefit-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    color: white;
}

.benefit-card p {
    font-size: 0.95rem;
    line-height: 1.6;
    opacity: 0.9;
}

.ai-use-cases {
    margin-top: 3rem;
}

.ai-use-cases h3 {
    font-size: 1.8rem;
    text-align: center;
    margin-bottom: 2rem;
    color: white;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.use-case {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    transition: all 0.3s ease;
}

.use-case:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.2);
}

.use-case-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.use-case h4 {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    color: white;
}

.use-case p {
    font-size: 0.95rem;
    line-height: 1.6;
    opacity: 0.9;
}

/* Tech Stack */
.tech-stack {
    background: var(--bg-light);
}

.tech-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.tech-category {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.tech-category.ai-category {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 2px solid rgba(102, 126, 234, 0.3);
}

.tech-category h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.tech-category.ai-category h3 {
    color: #667eea;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tags span {
    background: var(--bg-light);
    color: var(--text-dark);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.ai-category .tech-tags span {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.experience-stats {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 3rem;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

/* Approach */
.approach-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.step {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.step p {
    color: var(--text-light);
    line-height: 1.7;
}

/* CTA Section */
.cta-section {
    background: var(--gradient-primary);
    color: white;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

/* Contacto */
.contact {
    background: var(--bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.contact-info {
    display: contents;
}

.contact-item {
    display: flex;
    gap: 1rem;
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    font-size: 2.5rem;
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.contact-item a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.05rem;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-item p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 1.05rem;
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: white;
    padding: 3rem 0 1rem;
}

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

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    opacity: 0.8;
    line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
    line-height: 2;
}

.footer-links a:hover {
    opacity: 1;
}

.footer-contact p {
    line-height: 1.8;
    opacity: 0.8;
}

.footer-contact a {
    color: white;
    text-decoration: none;
}

.footer-contact a:hover {
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-brand {
        width: 100%;
        justify-content: space-between;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        gap: 0;
        padding: 0;
        margin: 0;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        border-bottom: 3px solid var(--primary-color);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-in-out;
        z-index: 999;
    }
    
    .nav-menu.active {
        max-height: 350px;
    }
    
    .nav-menu li {
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
        background: var(--bg-white);
    }
    
    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .nav-menu a {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0.75rem 1.5rem;
        width: 100%;
        font-size: 0.95rem;
        font-weight: 500;
        text-align: center;
        line-height: 1.4;
        transition: background-color 0.2s ease;
    }
    
    .nav-menu a::after {
        display: none;
    }
    
    .nav-menu a:active {
        background: rgba(52, 152, 219, 0.1);
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-tagline {
        font-size: 1rem;
    }

    .professional-roles {
        gap: 0.5rem;
        margin: 1.5rem 0;
    }

    .ia-roles {
        gap: 0.5rem;
        margin: 0 0 1.5rem 0;
    }

    .role-badge {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .services-grid,
    .tech-categories,
    .approach-steps,
    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-profile {
        max-width: 300px;
        margin: 0 auto;
    }

    .profile-badges {
        flex-wrap: wrap;
        gap: 1rem;
    }

    .badge-logo {
        height: 60px;
    }

    .evolution-content {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .experience-stats {
        flex-direction: column;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    section {
        padding: 50px 0;
    }

    .hero {
        padding: 50px 0;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .navbar .container {
        flex-direction: column;
        gap: 0.5rem;
    }

    .nav-brand {
        text-align: center;
    }
}