:root {
    /* PALETA NEON PURPLE & CIAN */
    --primary-bg: #0B0F19;
    --glass-bg: rgba(17, 24, 39, 0.75);
    --glass-border: rgba(255, 255, 255, 0.1);
    --sidebar-bg: rgba(10, 10, 16, 0.85);
    
    --primary-text: #EAEAEA;
    --secondary-text: #8892B0;
    
    /* ACENTO NEON */
    --accent-color: #A020F0; /* Púrpura Eléctrico (Principal) */
    --accent-hover-color: #00BFFF; /* Cian Eléctrico (Contorno/Hover) */
    --accent-hover-glow: rgba(0, 191, 255, 0.2); /* Resplandor Cian */

    --font-family: 'Poppins', sans-serif;
    --border-radius: 16px;
    --transition-speed: 0.3s;
    --sidebar-width: 280px;
}

*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-family);
    background-color: var(--primary-bg);
    color: var(--primary-text);
    overflow-x: hidden;
}

/* --- Fondo de Estrellas Estático --- */
.starfield {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
}
.stars1, .stars2, .stars3 {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-repeat: repeat;
    background-size: cover;
}
.stars1 { background-image: url('https://www.transparenttextures.com/patterns/stardust.png'); }
.stars2 { background-image: url('https://www.transparenttextures.com/patterns/stardust.png'); transform: scale(0.7); }
.stars3 { background-image: url('https://www.transparenttextures.com/patterns/stardust.png'); transform: scale(0.5); }

/* --- Estructura Principal --- */
.page-wrapper {
    display: flex;
    min-height: 100vh;
}

/* --- Barra Lateral --- */
.projects-sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-right: 1px solid var(--glass-border);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform var(--transition-speed) ease;
}
.sidebar-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 1.5rem;
}
.sidebar-profile-img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}
.sidebar-profile-info h3 { margin: 0; font-size: 1.1rem; }
.sidebar-profile-info p { margin: 0; font-size: 0.8rem; color: var(--secondary-text); }

.category-menu {
    flex-grow: 1;
    overflow-y: auto;
}
.category-item {
    display: flex;
    align-items: center;
    padding: 0.8rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color var(--transition-speed);
}
.category-item:hover { background-color: rgba(255,255,255,0.05); }
.category-item i:first-child {
    width: 30px;
    font-size: 1rem;
    color: var(--accent-color);
}
.category-item span { flex-grow: 1; }
.category-arrow { transition: transform var(--transition-speed) ease; }
.category-arrow.rotate { transform: rotate(180deg); }

.subcategory-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-speed) ease-in-out;
    padding-left: 1rem;
}
.subcategory-item {
    display: flex;
    align-items: center;
    padding: 0.6rem 1rem 0.6rem 2rem;
    border-radius: 8px;
    cursor: pointer;
    color: var(--secondary-text);
    font-size: 0.9rem;
    transition: all var(--transition-speed);
    position: relative;
}
.subcategory-item:hover, .subcategory-item.active {
    background-color: rgba(0, 191, 255, 0.1);
    color: var(--accent-hover-color);
}
.subcategory-item i { width: 25px; }

.sidebar-footer {
    padding-top: 1.5rem;
    border-top: 1px solid var(--glass-border);
}
.back-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.75rem;
    text-decoration: none;
    font-weight: 500;
    color: var(--primary-text);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    transition: all var(--transition-speed) ease;
}
.back-button:hover {
    border-color: var(--accent-hover-color);
    color: var(--accent-hover-color);
}

/* --- Contenido Principal --- */
.projects-content {
    flex-grow: 1;
    padding: 1.5rem;
    overflow-y: auto;
}
.top-bar {
    display: none; /* Oculto en escritorio */
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.menu-toggle {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--primary-text);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    font-size: 1.2rem;
}
.top-bar h1 {
    margin: 0;
    font-size: 1.5rem;
}

.tab-content-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}

/* --- Estilos de Tarjeta de Proyecto --- */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    position: relative;
    overflow: hidden;
}
.card::before {
    content: '';
    position: absolute;
    top: var(--mouse-y, 0);
    left: var(--mouse-x, 0);
    width: 500px;
    height: 500px;
    background: radial-gradient(circle closest-side, var(--accent-hover-glow), transparent);
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
}
.card:hover::before { opacity: 1; }

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}
.project-header h2 { margin: 0; color: var(--accent-color); }
.project-tags { display: flex; gap: 0.5rem; }
.tag { background-color: rgba(0, 191, 255, 0.1); color: var(--accent-hover-color); padding: 0.3rem 0.7rem; border-radius: 6px; font-size: 0.8rem; font-weight: 500; }

.project-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.project-gallery img {
    width: 100%;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
}

.project-description h3 { color: var(--accent-color); margin-top: 1.5rem; margin-bottom: 1rem; }
.project-description p { color: var(--secondary-text); line-height: 1.7; }
.project-description ul { list-style: none; padding-left: 0; }
.project-description li {
    color: var(--secondary-text);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.project-description li::before {
    content: '\f00c'; /* Icono de check */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--accent-color);
}

/* --- Estilos de GitHub --- */
.github-loading, .github-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    gap: 1rem;
    color: var(--secondary-text);
}
.github-loading i { font-size: 2rem; animation: spin 1.5s linear infinite; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.github-profile-header { display: flex; gap: 2rem; margin-bottom: 1.5rem; }
.github-profile-avatar img { width: 100px; height: 100px; border-radius: 50%; }
.github-profile-details h2 { margin: 0 0 0.25rem 0; font-size: 1.8rem; }
.github-profile-details .username { color: var(--secondary-text); margin-bottom: 1rem; }
.github-profile-stats { display: flex; gap: 1.5rem; margin-top: 1rem; }
.github-profile-stats span { font-weight: 500; }
.github-profile-stats i { color: var(--secondary-text); margin-right: 0.5rem; }

.github-repo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 1.5rem;
}
.github-repo-header h2 { margin: 0; }
.github-repo-nav { display: flex; gap: 1rem; }
.github-repo-nav a {
    text-decoration: none;
    color: var(--secondary-text);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all var(--transition-speed);
}
.github-repo-nav a:hover, .github-repo-nav a.active {
    background-color: rgba(0, 191, 255, 0.1);
    color: var(--accent-hover-color);
}

.github-readme-content { line-height: 1.7; }
.github-readme-content h1, .github-readme-content h2, .github-readme-content h3 { border-bottom: 1px solid var(--glass-border); padding-bottom: 0.5rem; margin-top: 1.5rem; }
.github-readme-content a { color: var(--accent-hover-color); }
.github-readme-content code { background-color: rgba(0,0,0,0.3); padding: 0.2rem 0.4rem; border-radius: 4px; font-family: 'Courier New', Courier, monospace; }
.github-readme-content pre { padding: 1rem; border-radius: 8px; }

.github-repos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}
.repo-card {
    background: rgba(0,0,0,0.2);
    padding: 1.5rem;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
}
.repo-card h3 { margin: 0 0 0.5rem 0; color: var(--accent-hover-color); }
.repo-card p { color: var(--secondary-text); font-size: 0.9rem; flex-grow: 1; }
.repo-card-footer { display: flex; justify-content: space-between; align-items: center; margin-top: 1rem; }
.repo-card-stats { display: flex; gap: 1rem; font-size: 0.9rem; }
.repo-card-stats i { margin-right: 0.3rem; }

/* --- Coming Soon --- */
.coming-soon { text-align: center; padding: 3rem; }
.coming-soon i { font-size: 3rem; color: var(--accent-color); margin-bottom: 1.5rem; }
.coming-soon h3 { margin: 0; }
.coming-soon p { color: var(--secondary-text); }

/* --- Responsive --- */
@media (max-width: 992px) {
    .projects-sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100%;
        transform: translateX(-100%);
        z-index: 1000;
    }
    .projects-sidebar.show {
        transform: translateX(0);
    }
    .projects-content {
        width: 100%;
    }
    .top-bar {
        display: flex;
    }
}