/* Variables globales */
:root {
    /* Colores - Tema Claro */
    --primary-color: #4a6baf;
    --secondary-color: #6c757d;
    --background-color: #ffffff;
    --text-color: #333333;
    --card-bg-color: #f8f9fa;
    --border-color: #dee2e6;
    --highlight-color: #4a6baf;
    --shadow-color: rgba(0, 0, 0, 0.1);

    /* Fuentes */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;

    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;

    /* Bordes */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;

    /* Transiciones */
    --transition-speed: 0.3s;
}

/* Variables para tema oscuro */
.dark-mode {
    --primary-color: #6d8fd1;
    --secondary-color: #adb5bd;
    --background-color: #121212;
    --text-color: #f8f9fa;
    --card-bg-color: #1e1e1e;
    --border-color: #2d2d2d;
    --highlight-color: #6d8fd1;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

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

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

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

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

a:hover {
    color: var(--highlight-color);
}

img {
    max-width: 100%;
    height: auto;
}

/* Contenedor principal */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Encabezado y navegación */
header {
    background-color: var(--background-color);
    box-shadow: 0 2px 10px var(--shadow-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: var(--spacing-md) 0;
    transition: background-color var(--transition-speed);
}

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

header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

nav {
    display: flex;
    align-items: center;
}

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

.nav-menu li {
    margin-left: var(--spacing-lg);
}

.nav-menu a {
    color: var(--text-color);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-speed);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    background-color: rgba(74, 107, 175, 0.1);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-color);
    transition: all var(--transition-speed);
}

/* Botón de cambio de tema */
#theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    transition: background-color var(--transition-speed);
}

#theme-toggle:hover {
    background-color: rgba(74, 107, 175, 0.1);
}

.light-mode #theme-toggle .fa-sun {
    display: none;
}

.dark-mode #theme-toggle .fa-moon {
    display: none;
}

/* Sección Hero */
.hero {
    padding: var(--spacing-xxl) 0;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-xl);
}

.hero-content {
    flex: 1;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero .highlight {
    color: var(--primary-color);
}

.hero .subtitle {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.hero .description {
    margin-bottom: var(--spacing-lg);
    font-size: 1.1rem;
}

.profile-image-container {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    overflow: hidden;
    border: 5px solid var(--primary-color);
    box-shadow: 0 10px 20px var(--shadow-color);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Botones */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: none;
    font-size: 1rem;
}

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

.btn.primary:hover {
    background-color: var(--highlight-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow-color);
}

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

.btn.secondary:hover {
    background-color: rgba(74, 107, 175, 0.1);
    transform: translateY(-2px);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
}

/* Sección de habilidades */
.skills {
    padding: var(--spacing-xxl) 0;
    background-color: var(--card-bg-color);
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

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

.skill-card {
    background-color: var(--background-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 5px 15px var(--shadow-color);
    text-align: center;
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px var(--shadow-color);
}

.skill-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.skill-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

/* Sección Acerca de */
.about-hero {
    padding: var(--spacing-xxl) 0;
}

.about-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.about-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.about-text {
    flex: 2;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.job-title {
    color: var(--secondary-color);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
}

.about-description {
    margin-bottom: var(--spacing-lg);
}

.personal-info {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.info-item {
    margin-bottom: var(--spacing-sm);
}

.info-label {
    font-weight: 600;
    color: var(--primary-color);
    margin-right: var(--spacing-xs);
}

/* Timeline para educación y experiencia */
.education,
.experience {
    padding: var(--spacing-xxl) 0;
    background-color: var(--card-bg-color);
}

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

.timeline::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: var(--primary-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
    border-radius: 2px;
}

.timeline-item {
    padding: var(--spacing-md) 0;
    position: relative;
    width: 50%;
    left: 0;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    right: -10px;
    background-color: var(--primary-color);
    border-radius: 50%;
    z-index: 1;
    top: var(--spacing-xl);
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -10px;
}

.timeline-content {
    padding: var(--spacing-lg);
    background-color: var(--background-color);
    border-radius: var(--border-radius-md);
    box-shadow: 0 5px 15px var(--shadow-color);
    position: relative;
    margin-right: var(--spacing-xl);
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: 0;
    margin-left: var(--spacing-xl);
}

.timeline-date {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.timeline-institution {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

/* Sección de proyectos */
.projects-hero {
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    text-align: center;
}

.section-description {
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    text-align: center;
}

.projects {
    padding: 0 0 var(--spacing-xxl);
}

.projects-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.filter-btn {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--text-color);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-speed);
}

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

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.project-card {
    background-color: var(--background-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 5px 15px var(--shadow-color);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px var(--shadow-color);
}

.project-image {
    position: relative;
    overflow: hidden;
    height: 200px;
}

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

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    opacity: 0;
    transition: opacity var(--transition-speed);
}

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

.project-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform var(--transition-speed), background-color var(--transition-speed);
}

.project-link:hover {
    transform: translateY(-3px);
    background-color: var(--highlight-color);
}

.project-info {
    padding: var(--spacing-lg);
}

.project-info h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.3rem;
}

.project-category {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.project-description {
    margin-bottom: var(--spacing-md);
}

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

.tag {
    background-color: rgba(74, 107, 175, 0.1);
    color: var(--primary-color);
    padding: 2px 8px;
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
}

/* Sección de contacto */
.contact-hero {
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    text-align: center;
}

.contact-info {
    padding: 0 0 var(--spacing-xxl);
}

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

.contact-details,
.contact-form-container {
    background-color: var(--card-bg-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 5px 15px var(--shadow-color);
}

.contact-details h3,
.contact-form-container h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.contact-details>p {
    margin-bottom: var(--spacing-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: var(--spacing-md);
    margin-top: var(--spacing-xs);
}

.contact-item h4 {
    margin-bottom: var(--spacing-xs);
}

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

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

.social-icons a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(74, 107, 175, 0.1);
    color: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all var(--transition-speed);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--background-color);
    color: var(--text-color);
    font-family: var(--font-family);
    transition: border-color var(--transition-speed);
}

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

.map-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--background-color);
}

.map-container {
    height: 300px;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 5px 15px var(--shadow-color);
}

.map-placeholder {
    width: 100%;
    height: 100%;
    background-color: var(--card-bg-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--secondary-color);
}

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

/* Footer */
footer {
    background-color: var(--card-bg-color);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

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

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(74, 107, 175, 0.1);
    color: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all var(--transition-speed);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

/* Diseño responsive */
@media (max-width: 992px) {
    html {
        font-size: 15px;
    }

    .hero .container,
    .about-content {
        flex-direction: column-reverse;
        text-align: center;
    }

    .hero-content,
    .about-text {
        margin-top: var(--spacing-lg);
    }

    .cta-buttons {
        justify-content: center;
    }

    .personal-info {
        justify-content: center;
    }

    .timeline::after {
        left: 31px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
        left: 0;
    }

    .timeline-item:nth-child(even) {
        left: 0;
    }

    .timeline-dot {
        left: 21px;
        right: auto;
    }

    .timeline-item:nth-child(even) .timeline-dot {
        left: 21px;
    }

    .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        margin-right: 0;
        margin-left: 0;
    }

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

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--background-color);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px var(--shadow-color);
        padding: var(--spacing-lg) 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: var(--spacing-sm) 0;
    }

    .menu-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .skills-container {
        flex-direction: column;
        align-items: center;
    }

    .skill-card {
        width: 100%;
        max-width: 100%;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    html {
        font-size: 14px;
    }

    .hero h2 {
        font-size: 2rem;
    }

    .profile-image-container {
        width: 250px;
        height: 250px;
    }

    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .btn {
        width: 100%;
    }

    .section-title {
        font-size: 1.8rem;
    }
}

.project-stats {
    display: flex;
    gap: 15px;
    margin-top: 15px;
    font-size: 14px;
    opacity: 0.8;
}

.project-stats span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.light-mode .project-image img {
    filter: none;
}

.dark-mode .project-image img {
    filter: brightness(0.9) contrast(1.1);
}