/* ====================================
   VARIABLES Y CONFIGURACIÓN BASE
   ==================================== */

:root {
    /* Colores - Modo Claro */
    --color-primary: #3b82f6;
    --color-secondary: #8b5cf6;
    --color-accent: #10b981;
    --color-bg: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-text: #0f172a;
    --color-text-secondary: #475569;
    --color-border: #e2e8f0;
    
    /* Espaciado */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    
    /* Tipografía */
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-2xl: 1.5rem;
    --font-3xl: 2rem;
    --font-4xl: 2.5rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    
    /* Transiciones */
    --transition: 0.3s ease;
}

/* Modo Oscuro */
[data-theme="dark"] {
    --color-bg: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-text: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-border: #334155;
    --color-primary: #60a5fa;
    --color-secondary: #a78bfa;
}

/* ====================================
   RESET Y BASE
   ==================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: var(--font-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: background-color var(--transition), color var(--transition);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ====================================
   LOADER INICIAL
   ==================================== */

.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ====================================
   NAVBAR
   ==================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: transparent;
    padding: var(--space-md) 0;
    z-index: 1000;
    transition: background-color var(--transition), backdrop-filter var(--transition);
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .navbar.scrolled {
    background-color: rgba(15, 23, 42, 0.9);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: var(--font-xl);
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}

.logo:hover {
    color: var(--color-secondary);
}

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

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    padding: var(--space-xs) var(--space-sm);
    border-radius: 6px;
    transition: all var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-primary);
    background-color: var(--color-bg-secondary);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-text);
    border-radius: 3px;
    transition: all var(--transition);
}

.theme-toggle {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: var(--font-xl);
    transition: all var(--transition);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

/* ====================================
   SECCIONES
   ==================================== */
.section {
    display: block;  /* ← Ahora siempre visible */
    min-height: 100vh;
    padding: calc(80px + var(--space-xl)) 0 var(--space-2xl);
    opacity: 1;  /* ← Siempre visible */
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

.section-title {
    font-size: var(--font-4xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-xl);
    color: var(--color-text);
}

/* ====================================
   HOME / HERO
   ==================================== */

.section-home {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;  /* ← AÑADE ESTA LÍNEA */
    padding: 0 var(--space-md);  /* ← OPCIONAL: añade padding para móviles */
}


.hero-avatar {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto var(--space-lg);
    overflow: hidden;
    border: 4px solid var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.hero-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-greeting {
    font-size: var(--font-2xl);
    margin-bottom: var(--space-sm);
    color: var(--color-text-secondary);
}

.highlight {
    color: var(--color-primary);
    font-weight: 700;
}

.hero-title {
    font-size: var(--font-4xl);
    font-weight: 700;
    margin-bottom: var(--space-md);
    min-height: 80px;
}

.typing-text {
    color: var(--color-primary);
}

.cursor {
    color: var(--color-primary);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-tagline {
    font-size: var(--font-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.hero-cta {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: var(--space-sm) var(--space-lg);
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
    font-size: var(--font-base);
}

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

.btn-primary:hover {
    background-color: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

/* ====================================
   ABOUT
   ==================================== */

.about-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-2xl);
}

.about-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
}

.about-text h3 {
    font-size: var(--font-2xl);
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.about-text p {
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.skills-section {
    margin-top: var(--space-2xl);
}

.skills-categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* ← 4 columnas fijas en desktop */
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

/* Responsive para tablet */
@media (max-width: 1024px) {
    .skills-categories-grid {
        grid-template-columns: repeat(2, 1fr); /* ← 2x2 en tablet */
    }
}

/* Responsive para móvil */
@media (max-width: 768px) {
    .skills-categories-grid {
        grid-template-columns: 1fr; /* ← 1 columna en móvil */
    }
}


.skill-category-card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: var(--space-lg);
    transition: all var(--transition);
}

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

.skill-category-title {
    font-size: var(--font-xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-border);
}

.skill-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.skill-list-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs);
    border-radius: 6px;
    transition: all var(--transition);
    color: var(--color-text);
}

.skill-list-item:hover {
    background-color: var(--color-bg);
    padding-left: var(--space-sm);
}

.skill-list-item .skill-icon {
    font-size: var(--font-xl);
    flex-shrink: 0;
}

.skill-list-item .skill-name {
    font-weight: 500;
    font-size: var(--font-base);
}


/* ====================================
   PROJECTS
   ==================================== */

.project-filters {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    border: 2px solid var(--color-border);
    background: transparent;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition);
    color: var(--color-text);  /* ← AÑADE SOLO ESTA LÍNEA */
}

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

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

.project-card {
    background-color: var(--color-bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition);
    cursor: pointer;
}

.project-card.hidden {
    display: none;
}

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

.project-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-badge {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    background-color: var(--color-accent);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.project-info {
    padding: var(--space-md);
}

.project-title {
    font-size: var(--font-xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.project-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

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

.project-tag {
    background-color: var(--color-bg);
    color: var(--color-primary);
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    border: 1px solid var(--color-border);
}

.project-links {
    display: flex;
    gap: var(--space-sm);
}

.project-link {
    flex: 1;
    text-align: center;
    padding: var(--space-xs) var(--space-sm);
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition);
}

.project-link-demo {
    background-color: var(--color-primary);
    color: white;
}

.project-link-code {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

/* ====================================
   CONTACT
   ==================================== */

.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-xl);
}

.contact-form {
    background-color: var(--color-bg-secondary);
    padding: var(--space-xl);
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 600;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm);
    border: 2px solid var(--color-border);
    border-radius: 8px;
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: inherit;
    font-size: var(--font-base);
    transition: border-color var(--transition);
}

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

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

.btn-submit {
    width: 100%;
    padding: var(--space-md);
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: var(--font-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-submit:hover {
    background-color: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.form-message {
    margin-top: var(--space-md);
    padding: var(--space-sm);
    border-radius: 6px;
    text-align: center;
    font-weight: 600;
}

.form-message.success {
    background-color: #d1fae5;
    color: #065f46;
}

.form-message.error {
    background-color: #fee2e2;
    color: #991b1b;
}

.form-message.hidden {
    display: none;
}

.contact-info {
    background-color: var(--color-bg-secondary);
    padding: var(--space-xl);
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

.contact-info-item {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.contact-icon {
    font-size: var(--font-2xl);
}

.contact-details h4 {
    font-size: var(--font-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

.contact-details a,
.contact-details p {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
}

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

.contact-social {
    margin-top: var(--space-xl);
}

.contact-social h4 {
    margin-bottom: var(--space-md);
}

.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: var(--font-xl);
    transition: all var(--transition);
}

.social-link:hover {
    background-color: var(--color-secondary);
    transform: translateY(-5px);
}

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

.footer {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-xl) 0 var(--space-md);
}

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

.footer-section h4 {
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

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

.footer-links li {
    margin-bottom: var(--space-xs);
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition);
}

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

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

/* ====================================
   MODAL
   ==================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    padding: var(--space-lg);
    overflow-y: auto;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--color-bg);
    border-radius: 12px;
    max-width: 900px;
    width: 100%;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

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

.modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 40px;
    height: 40px;
    border: none;
    background-color: var(--color-bg-secondary);
    border-radius: 50%;
    font-size: var(--font-2xl);
    cursor: pointer;
    transition: all var(--transition);
    z-index: 10;
}

.modal-close:hover {
    background-color: var(--color-primary);
    color: white;
    transform: rotate(90deg);
}

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background-color: var(--color-bg);
        padding: var(--space-lg);
        box-shadow: var(--shadow-lg);
        transition: left var(--transition);
        gap: 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        display: block;
        padding: var(--space-md);
        border-bottom: 1px solid var(--color-border);
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-title {
        font-size: var(--font-3xl);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-2xl);
    }
    
    .section-title {
        font-size: var(--font-3xl);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}
/* ====================================
   EXPERIENCE SECTION
   ==================================== */

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

.experience-item {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
    padding: var(--space-lg);
    background-color: var(--color-bg-secondary);
    border-radius: 12px;
    border-left: 4px solid var(--color-primary);
    transition: all var(--transition);
}

.experience-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
}

.experience-icon {
    font-size: 2.5rem;
    text-align: center;
    line-height: 1;
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-sm);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.experience-title {
    font-size: var(--font-xl);
    font-weight: 700;
    color: var(--color-text);
}

.experience-period {
    font-size: var(--font-sm);
    color: var(--color-primary);
    font-weight: 600;
    white-space: nowrap;
}

.experience-company {
    color: var(--color-text-secondary);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.experience-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.experience-achievements {
    list-style: none;
    margin-bottom: var(--space-md);
}

.experience-achievements li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.experience-achievements li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

.experience-tags {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.experience-tag {
    background-color: var(--color-bg);
    color: var(--color-primary);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    border: 1px solid var(--color-border);
}

@media (max-width: 768px) {
    .experience-item {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .experience-icon {
        margin-bottom: var(--space-sm);
    }
    
    .experience-header {
        flex-direction: column;
        align-items: center;
    }
}
/* ====================================
   MEJORAS HERO SECTION
   ==================================== */

.section-home {
    position: relative;
    background: linear-gradient(135deg, 
        var(--color-bg) 0%, 
        var(--color-bg-secondary) 50%, 
        var(--color-bg) 100%);
    overflow: hidden;
}

/* Fondo animado con gradiente */
.section-home::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, 
        rgba(59, 130, 246, 0.1) 0%, 
        transparent 70%);
    animation: rotate 20s linear infinite;
    z-index: 0;
}

.section-home::after {
    content: '';
    position: absolute;
    bottom: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, 
        rgba(139, 92, 246, 0.08) 0%, 
        transparent 70%);
    animation: rotate 25s linear reverse infinite;
    z-index: 0;
}

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

/* Hero content encima del fondo */
.hero-content {
    position: relative;
    z-index: 1;
}

/* Efecto de luz en el avatar */
.hero-avatar {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.hero-avatar::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: linear-gradient(45deg, 
        var(--color-primary), 
        var(--color-secondary), 
        var(--color-accent));
    border-radius: 50%;
    z-index: -1;
    opacity: 0.3;
    filter: blur(20px);
    animation: pulse 3s ease-in-out infinite;
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.05);
    }
}

/* Mejora en los botones del hero */
.hero-cta {
    margin-top: var(--space-xl);
}

.hero-cta .btn {
    position: relative;
    overflow: hidden;
}

.hero-cta .btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.hero-cta .btn:hover::before {
    width: 300px;
    height: 300px;
}

/* Ajuste del texto principal */
.hero-greeting {
    animation: fadeInDown 1s ease;
}

.hero-title {
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-tagline {
    animation: fadeInUp 1s ease 0.4s both;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

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

/* Partículas flotantes (opcional) */
.hero-content::before {
    content: '✦';
    position: absolute;
    top: 20%;
    left: 10%;
    font-size: 2rem;
    color: var(--color-primary);
    opacity: 0.3;
    animation: floatParticle 8s ease-in-out infinite;
}

.hero-content::after {
    content: '✦';
    position: absolute;
    top: 60%;
    right: 15%;
    font-size: 1.5rem;
    color: var(--color-secondary);
    opacity: 0.2;
    animation: floatParticle 10s ease-in-out infinite reverse;
}

@keyframes floatParticle {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
        opacity: 0.2;
    }
    50% {
        transform: translateY(-30px) rotate(180deg);
        opacity: 0.4;
    }
}

/* Responsive - ajustar en móviles */
@media (max-width: 768px) {
    .section-home::before,
    .section-home::after {
        display: none; /* Simplificar en móvil */
    }
    
    .hero-content::before,
    .hero-content::after {
        display: none;
    }
}
/* ====================================
   MEJORAS NAVBAR
   ==================================== */

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

.btn-nav-cta {
    padding: var(--space-xs) var(--space-lg);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all var(--transition);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

@media (max-width: 768px) {
    .btn-nav-cta {
        display: none; /* Ocultar en móvil para no saturar */
    }
}
/* ====================================
   SCROLL PROGRESS BAR
   ==================================== */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    width: 0%;
    z-index: 9999;
    transition: width 0.1s ease;
}
/* ====================================
   STATS SECTION
   ==================================== */

.section-stats {
    background: linear-gradient(135deg, 
        var(--color-bg-secondary) 0%, 
        var(--color-bg) 100%);
    min-height: auto;
    padding: var(--space-2xl) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
    background-color: var(--color-bg);
    border-radius: 16px;
    border: 2px solid var(--color-border);
    transition: all var(--transition);
    min-height: 200px;
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.stat-icon {
    font-size: 3.5rem;
    margin-bottom: var(--space-md);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: var(--font-base);
    color: var(--color-text-secondary);
    text-align: center;
    font-weight: 500;
}

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

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md);
    }
    
    .stat-card {
        padding: var(--space-lg);
        min-height: 160px;
    }
    
    .stat-icon {
        font-size: 2.5rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .stat-label {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

   /* ====================================
   BACK TO TOP BUTTON
   ==================================== */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}
/* ====================================
   STATS SECTION
   ==================================== */

.section-stats {
    background: linear-gradient(135deg, 
        var(--color-bg-secondary) 0%, 
        var(--color-bg) 100%);
    min-height: auto;
    padding: var(--space-2xl) 0;
}

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

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-xl);
    background-color: var(--color-bg);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.stat-number {
    font-size: var(--font-4xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: var(--font-base);
    color: var(--color-text-secondary);
    text-align: center;
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-number {
        font-size: var(--font-3xl);
    }
}
/* Mejorar animaciones del hero */
.hero-avatar {
    animation: scaleIn 1s ease both;
}

.hero-greeting {
    animation: fadeInDown 1s ease 0.2s both;
}

.hero-title {
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-tagline {
    animation: fadeInUp 1s ease 0.6s both;
}

.hero-cta {
    animation: fadeInUp 1s ease 0.8s both;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}
/* ====================================
   PRINT STYLES
   ==================================== */

@media print {
    .navbar,
    .loader,
    .back-to-top,
    .scroll-progress,
    .theme-toggle {
        display: none !important;
    }
    
    .section {
        page-break-inside: avoid;
        min-height: auto;
        padding: 20px 0;
    }
    
    body {
        background: white;
        color: black;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
}