/* Variables Globales y Paletas de Color */
:root {
    /* Modo Oscuro Elegante (Negros y Azules) - Por Defecto */
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --text-color: #c9d1d9;
    --text-heading: #ffffff;
    --accent-blue: #2f81f7;
    --accent-hover: #58a6ff;
    --border-color: #30363d;
    --nav-bg: rgba(13, 17, 23, 0.85);
    --shadow-color: rgba(0, 0, 0, 0.4);
    --transition: all 0.3s ease;
}

[data-theme="light"] {
    /* Modo Claro Elegante (Blancos y Azules UCV) */
    --bg-color: #f4f6f9;
    --card-bg: #ffffff;
    --text-color: #4a5568;
    --text-heading: #1a202c;
    --accent-blue: #0056b3;
    --accent-hover: #003d82;
    --border-color: #e2e8f0;
    --nav-bg: rgba(255, 255, 255, 0.9);
    --shadow-color: rgba(0, 0, 0, 0.08);
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition);
    line-height: 1.6;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background-color: var(--nav-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.logo span {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-blue);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent-blue);
}

/* Switch Dark/Light */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--border-color);
    transition: .4s;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 6px;
}

.slider i {
    font-size: 12px;
    color: #f1c40f;
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
    z-index: 2;
}

input:checked + .slider.round:before {
    transform: translateX(24px);
}

/* General Layout */
.section {
    padding: 6rem 8% 0rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 2rem;
    color: var(--text-heading);
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 50%;
    height: 3px;
    background-color: var(--accent-blue);
    border-radius: 2px;
}

.section-subtitle {
    margin-bottom: 2rem;
}

/* Efectos Hover en Tarjetas */
.hover-effect {
    transition: var(--transition);
    border-radius: 12px;
}

.hover-effect:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 20px var(--shadow-color);
    border-color: var(--accent-blue);
}

/* Hero */
.hero-section {
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    width: 100%;
}

.badge {
    background-color: rgba(47, 129, 247, 0.2);
    color: #58a6ff;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.hero-text h1 {
    font-size: 3rem;
    color: var(--text-heading);
    margin: 1rem 0;
}

.highlight {
    color: var(--accent-blue);
}

.bio {
    margin-bottom: 2rem;
    max-width: 600px;
    text-align: justify;
}

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

.btn {
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: #fff;
}

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

.btn-outline {
    border: 1px solid var(--border-color);
    color: var(--text-heading);
}

.btn-outline:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.hero-avatar .avatar-card img {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--accent-blue);
    box-shadow: 0 0 20px var(--shadow-color);
}

/* Cards Grid (Estudios / Experiencia) */
.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.card {
    background-color: var(--card-bg);
    padding: 2rem;
    border: 1px solid var(--border-color);
}

.card-icon {
    font-size: 2rem;
    color: var(--accent-blue);
    margin-bottom: 1rem;
}

.card h3 {
    color: var(--text-heading);
}

.card .subtitle {
    color: var(--accent-blue);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.date-badge {
    font-size: 0.8rem;
    background-color: var(--border-color);
    padding: 2px 8px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 1rem;
}

/* Skills */
.skills-wrapper {
    display: grid;
    gap: 2rem;
}

.skill-category h3 {
    margin-bottom: 1rem;
    color: var(--text-heading);
}

.badges-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-badge {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.skill-badge:hover {
    border-color: var(--hover-color);
    color: var(--hover-color);
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 0 10px var(--hover-color);
}

.skill-badge:hover i {
    color: var(--hover-color);
}

/* Proyectos Dinámicos */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    min-height: 350px;
}

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

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-blue);
}

.project-thumb {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.project-info {
    padding: 1.2rem;
}

.project-info h3 {
    color: var(--text-heading);
    margin-bottom: 0.5rem;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.page-btn {
    padding: 8px 14px;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-color);
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
}

.page-btn.active, .page-btn:hover {
    background-color: var(--accent-blue);
    color: #fff;
    border-color: var(--accent-blue);
}

/* Contacto */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.contact-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2rem 1rem;
    text-align: center;
    text-decoration: none;
    color: var(--text-color);
}

.contact-card i {
    font-size: 2.5rem;
    color: var(--accent-blue);
    margin-bottom: 1rem;
}

.contact-card p {
    font-size: 0.9rem;
    word-break: break-word;
    overflow-wrap: anywhere;
}

.contact-card h3 {
    color: var(--text-heading);
}

.tech-tag {
    display: inline-block;
    background-color: rgba(56, 139, 253, 0.15);
    color: #58a6ff;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    margin-right: 5px;
    margin-top: 8px;
    font-weight: 500;
}

.card-icon.logo-institution {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    overflow: hidden;
}

.card-icon.logo-institution img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0px 2px 4px var(--shadow-color));
}

footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
    }
    .nav-links {
        display: none;
    }
    .hero-buttons {
        display: flex;
        justify-content: center;
        gap: 1rem;
    }

}

[data-theme="light"] .badge,
[data-theme="light"] .tech-tag {
    background-color: rgba(0, 86, 179, 0.12);
    color: #004494; /* Azul oscuro accesible sobre fondo claro */
}

/* Botón de Idioma Estilizado */
.lang-btn {
    background-color: var(--card-bg);
    color: var(--text-heading);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.lang-btn i {
    font-size: 0.9rem;
    color: var(--accent-blue);
}

.lang-btn:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px var(--shadow-color);
}

/* --- Estilos extraídos de elementos inline --- */

/* 1. Contenedor de acciones del header */
.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* 2. Color dinámico en badges de habilidades */
.skill-badge {
    --hover-color: var(--badge-color, var(--accent-blue));
}

/* Clases específicas para el color hover de cada tecnología */
.skill-badge.js      { --badge-color: #f7df1e; }
.skill-badge.php     { --badge-color: #777bb4; }
.skill-badge.cpp     { --badge-color: #00599c; }
.skill-badge.html    { --badge-color: #e34f26; }
.skill-badge.css     { --badge-color: #1572b6; }
.skill-badge.mysql   { --badge-color: #4479a1; }
.skill-badge.mysqli  { --badge-color: #00758f; }
.skill-badge.supabase{ --badge-color: #3ecf8e; }
.skill-badge.phpmyadmin { --badge-color: #f29111; }
.skill-badge.git     { --badge-color: #f05032; }
.skill-badge.jquery  { --badge-color: #0769ad; }
.skill-badge.xampp   { --badge-color: #fb7a24; }
.skill-badge.mvc     { --badge-color: #2f81f7; }
.skill-badge.poo     { --badge-color: #8e44ad; }
.skill-badge.ajax    { --badge-color: #007ce2; }