/* ===================================
   DARK MODE - TEMA OSCURO
   =================================== */

/**
 * Light Mode - Reset (cuando NO está en dark-mode)
 */
body:not(.dark-mode) .footer {
    background: var(--bg-dark);
    color: var(--bg-light);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

body:not(.dark-mode) .footer a {
    color: rgba(255, 255, 255, 0.7);
}

body:not(.dark-mode) .footer a:hover {
    color: var(--secondary);
}

body:not(.dark-mode) .footer p {
    color: rgba(255, 255, 255, 0.7);
}

body:not(.dark-mode) .footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
}

/**
 * Variables de tema oscuro
 * Se aplican cuando el body tiene la clase 'dark-mode'
 */
body.dark-mode {
    --bg-light: #0F172A;      /* Fondo principal oscuro */
    --bg-gray: #1E293B;       /* Fondo secundario oscuro */
    --bg-dark: #1F2937;       /* Ya es oscuro, se mantiene */
    --text-primary: #F1F5F9;  /* Texto principal claro */
    --text-secondary: #CBD5E1; /* Texto secundario claro */
    --border: #334155;        /* Bordes para tema oscuro */
}

/* Específicos para elementos en modo oscuro */
body.dark-mode {
    background-color: var(--bg-light);
    color: var(--text-primary);
}

body.dark-mode .navbar {
    background: var(--bg-light);
    border-bottom-color: var(--border);
}

body.dark-mode .navbar-brand {
    color: #60A5FA;
}

body.dark-mode .navbar-brand:hover {
    color: #93C5FD;
}

body.dark-mode .nav-link {
    color: var(--text-primary);
}

body.dark-mode .nav-link::after {
    background: #60A5FA;
}

body.dark-mode .nav-link-cta {
    background: #1E40AF;
    color: var(--text-primary);
}

body.dark-mode .nav-link-cta:hover {
    background: #1D4ED8;
}

body.dark-mode .hamburger span {
    background: var(--text-primary);
}

/* Controles mobile en dark mode */
body.dark-mode .menu-controls {
    background: var(--bg-gray);
}

body.dark-mode .menu-theme-toggle,
body.dark-mode .menu-language-btn {
    background: var(--bg-light);
    border-color: var(--border);
    color: var(--text-primary);
}

body.dark-mode .menu-theme-toggle:hover,
body.dark-mode .menu-language-btn:hover {
    border-color: #60A5FA;
    background: rgba(96, 165, 250, 0.1);
}

body.dark-mode .menu-language-dropdown {
    background: var(--bg-light);
    border-color: var(--border);
}

body.dark-mode .menu-language-dropdown button {
    color: var(--text-primary);
    border-bottom-color: var(--border);
}

body.dark-mode .menu-language-dropdown button:hover {
    background: var(--bg-gray);
}

body.dark-mode .menu-language-dropdown button.active {
    color: #60A5FA;
    background: rgba(96, 165, 250, 0.1);
}

body.dark-mode .nav-menu li {
    border-bottom-color: var(--border);
}

body.dark-mode .menu-divider {
    border-top-color: var(--border);
}

body.dark-mode .hero {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
}

body.dark-mode .hero-title {
    color: #60A5FA;
}

body.dark-mode .hero-subtitle {
    color: var(--text-secondary);
}

body.dark-mode .btn-primary {
    background: #1E40AF;
    border-color: #1E40AF;
    color: #F1F5F9;
}

body.dark-mode .btn-primary:hover {
    background: #1D4ED8;
    border-color: #1D4ED8;
}

body.dark-mode .btn-secondary {
    background: transparent;
    color: #60A5FA;
    border-color: #60A5FA;
}

body.dark-mode .btn-secondary:hover {
    background: #1E40AF;
    color: #F1F5F9;
}

body.dark-mode .section-header h2 {
    color: var(--text-primary);
}

body.dark-mode .section-header p {
    color: var(--text-secondary);
}

body.dark-mode .project-card {
    background: var(--bg-gray);
    border-color: var(--border);
    color: var(--text-primary);
}

body.dark-mode .project-card:hover {
    border-color: #60A5FA;
}

body.dark-mode .project-card h3 {
    color: var(--text-primary);
}

body.dark-mode .project-card p {
    color: var(--text-secondary);
}

body.dark-mode .tag {
    background: var(--bg-light);
    color: #60A5FA;
    border-color: #60A5FA;
}

body.dark-mode .skill-category-card {
    background: var(--bg-gray);
    color: var(--text-primary);
    border-color: var(--border);
}

body.dark-mode .skill-category-card h3 {
    color: var(--text-primary);
}

body.dark-mode .skill-category-card p {
    color: var(--text-secondary);
}

body.dark-mode .skill-category-card:hover {
    border-color: #60A5FA;
    background: rgba(96, 165, 250, 0.1);
}

body.dark-mode .cta-section {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.2) 0%, rgba(124, 58, 237, 0.2) 100%);
}

body.dark-mode .cta-section h2 {
    color: var(--text-primary);
}

body.dark-mode .cta-section p {
    color: var(--text-secondary);
}

body.dark-mode .form-group input,
body.dark-mode .form-group textarea {
    background: var(--bg-gray);
    border-color: var(--border);
    color: var(--text-primary);
}

body.dark-mode .form-group input::placeholder,
body.dark-mode .form-group textarea::placeholder {
    color: var(--text-secondary);
}

body.dark-mode .form-group label {
    color: var(--text-primary);
}

body.dark-mode .form-group input:focus,
body.dark-mode .form-group textarea:focus {
    border-color: #60A5FA;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
}

body.dark-mode .form-group input.error {
    border-color: #EF4444;
}

body.dark-mode .error-message {
    color: #FCA5A5;
}

body.dark-mode .form-message {
    border-color: var(--border);
}

body.dark-mode .form-message.success {
    background: rgba(16, 185, 129, 0.1);
    color: #86EFAC;
    border-color: #10B981;
}

body.dark-mode .form-message.error {
    background: rgba(239, 68, 68, 0.1);
    color: #FCA5A5;
    border-color: #EF4444;
}

body.dark-mode .form-message.loading {
    color: #60A5FA;
}

body.dark-mode .footer {
    background: var(--bg-gray);
    border-top-color: var(--border);
    color: var(--text-primary);
}

body.dark-mode .footer a {
    color: #60A5FA;
}

body.dark-mode .footer a:hover {
    color: #93C5FD;
}

body.dark-mode .footer-bottom {
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
    padding-top: var(--spacing-lg);
}

body.dark-mode .footer-bottom p {
    color: var(--text-secondary);
}

body.dark-mode .about-image {
    border-color: var(--border);
}

body.dark-mode .about-section h2 {
    color: var(--text-primary);
}

body.dark-mode .about-section p {
    color: var(--text-secondary);
}

body.dark-mode .stat h3 {
    color: var(--text-primary);
}

body.dark-mode .stat p {
    color: var(--text-secondary);
}

body.dark-mode .link-btn {
    color: #60A5FA;
    border-color: #60A5FA;
}

body.dark-mode .link-btn:hover {
    background: #1E40AF;
    color: var(--text-primary);
}

body.dark-mode .filter-btn {
    background: var(--bg-gray);
    color: var(--text-primary);
    border-color: var(--border);
}

body.dark-mode .filter-btn.active {
    background: #1E40AF;
    color: var(--text-primary);
    border-color: #1E40AF;
}

body.dark-mode .skill-grid {
    background: var(--bg-gray);
    border-color: var(--border);
}

body.dark-mode .skill-item {
    color: var(--text-primary);
}

body.dark-mode .skill-item .skill-icon {
    background: transparent;
    filter: brightness(0) saturate(100%) invert(1);
}

body.dark-mode .skill-item .skill-badge {
    color: #FFFFFF;
}

/* Transiciones suaves al cambiar tema */
body,
body * {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Botones del tema y idioma */
.theme-language-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.theme-toggle,
.language-selector {
    background: transparent;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-toggle:hover,
.language-selector:hover {
    border-color: var(--primary);
    background: rgba(30, 58, 138, 0.05);
}

body.dark-mode .theme-toggle,
body.dark-mode .language-selector {
    border-color: var(--border);
    color: var(--text-primary);
}

body.dark-mode .theme-toggle:hover,
body.dark-mode .language-selector:hover {
    border-color: #60A5FA;
    background: rgba(96, 165, 250, 0.1);
}

/* Selector de idioma */
.language-selector {
    position: relative;
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    min-width: 150px;
    z-index: 1000;
    margin-top: 0.5rem;
    box-shadow: var(--shadow-md);
    animation: slideDown 0.2s ease;
}

body.dark-mode .language-dropdown {
    background: var(--bg-gray);
    border-color: var(--border);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.language-dropdown button {
    display: block;
    width: 100%;
    padding: var(--spacing-md);
    border: none;
    background: transparent;
    cursor: pointer;
    text-align: left;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: var(--transition-fast);
    border-bottom: 1px solid var(--border);
}

.language-dropdown button:last-child {
    border-bottom: none;
}

.language-dropdown button:hover {
    background: var(--bg-gray);
}

body.dark-mode .language-dropdown button:hover {
    background: var(--bg-light);
}

.language-dropdown button.active {
    color: var(--primary);
    font-weight: 600;
}

body.dark-mode .language-dropdown button.active {
    color: #60A5FA;
}

/* Tech Icons - Dark Mode */
body.dark-mode .tech-icon {
    filter: invert(1) brightness(1.2);
}

/* Tech Tags - Dark Mode */
body.dark-mode .tech-tag {
    color: #FFFFFF;
}