:root {
    --primary-color: #ff7f7f;
    --secondary-color: #ff9f40;
    --accent-color: #ffb366;
    --text-primary: #333333;
    --text-secondary: #666666;
    --background-primary: #ffffff;
    --background-secondary: #f8f9fa;
    --border-color: #e9ecef;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 15px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

/* Tema oscuro */
[data-theme="dark"] {
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --background-primary: #1a1a1a;
    --background-secondary: #2d2d2d;
    --border-color: #404040;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 15px rgba(0, 0, 0, 0.4);
}

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

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

/* Toggle de tema */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    background: var(--primary-color);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

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

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 40px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.profile-section {
    display: flex;
    align-items: center;
    gap: 30px;
}

.profile-info h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.profile-info .title {
    font-size: 1.3rem;
    font-weight: 300;
    margin-bottom: 20px;
    opacity: 0.9;
}

/* Sección Acerca de mí */
.about-section {
    background: linear-gradient(135deg, rgba(255, 127, 127, 0.1), rgba(255, 159, 64, 0.1));
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    padding: 50px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.about-section p {
    max-width: 800px;
    margin: 0 auto;
    font-style: italic;
}

/* Contacto */
.social-section .contact-info {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.social-section .contact-item {
    background: var(--background-primary);
    padding: 15px 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.social-section .contact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    background: var(--primary-color);
    color: white;
}

.social-section .contact-item a {
    color: inherit;
    font-weight: 500;
    text-decoration: none;
}

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

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
}

.contact-item i {
    width: 20px;
    text-align: center;
    opacity: 0.8;
}

.contact-item a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* Secciones */
.section {
    background: var(--background-secondary);
    padding: 40px;
    margin-bottom: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.section:hover {
    box-shadow: var(--shadow-hover);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
}

.section-title i {
    font-size: 1.5rem;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding-left: 40px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 5px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 3px solid var(--background-secondary);
}

.timeline-date {
    display: inline-block;
    background: var(--accent-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 15px;
}

.timeline-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.timeline-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Educación */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.education-item {
    padding: 25px;
    background: var(--background-primary);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

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

.education-year {
    display: inline-block;
    background: var(--secondary-color);
    color: white;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 15px;
}

.education-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.education-item h4 {
    font-size: 1rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 10px;
}

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

/* Habilidades */
.skills-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.skills-column h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 25px;
    text-align: center;
}

.soft-skills {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.soft-skill-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: var(--background-primary);
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
}

.soft-skill-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
    background: var(--primary-color);
    color: white;
}

.soft-skill-item i {
    font-size: 1.2rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.soft-skill-item:hover i {
    color: white;
}

.soft-skill-item span {
    font-weight: 500;
}

/* Animaciones */
.fade-in {
    opacity: 0;
    animation: fadeIn 1s ease-in-out forwards;
}

.slide-up {
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.8s ease-out forwards;
}

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

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

/* Responsive */
@media (max-width: 768px) {
    .container { padding: 15px; }
    .profile-section { flex-direction: column; text-align: center; gap: 20px; }
    .profile-info h1 { font-size: 2rem; }
    .contact-info { grid-template-columns: 1fr; }
    .section { padding: 25px; }
    .section-title { font-size: 1.5rem; }
    .skills-container { grid-template-columns: 1fr; gap: 30px; }
    .education-grid { grid-template-columns: 1fr; }
    .timeline { padding-left: 20px; }
    .timeline-item { padding-left: 30px; }
}

@media (max-width: 480px) {
    .profile-info h1 { font-size: 1.8rem; }
    .section { padding: 20px; }
    .soft-skills { grid-template-columns: 1fr; }
}