/* ========================================
   DARK MODE - TOGGLE Y TRANSICIONES
   ======================================== */

/* Transición suave al cambiar de tema */
body {
    transition: background-color 0.3s ease, color 0.3s ease;
}

* {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* ========================================
   TEXTOS GLOBALES - DARK MODE
   ======================================== */

[data-theme="dark"] body {
    color: var(--color-text-primary);
}

[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6 {
    color: var(--color-text-primary);
}

[data-theme="dark"] p {
    color: var(--color-text-secondary);
}

[data-theme="dark"] strong {
    color: var(--color-text-primary);
}

[data-theme="dark"] .Hello-title,
[data-theme="dark"] .About-title,
[data-theme="dark"] .MyProject-title,
[data-theme="dark"] .MyCertificates {
    color: var(--color-text-primary);
}

[data-theme="dark"] .About-summary,
[data-theme="dark"] .description {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .Detail-title,
[data-theme="dark"] .Detail-subtitle,
[data-theme="dark"] .Detail-text,
[data-theme="dark"] .Detail-status {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .section-title,
[data-theme="dark"] .section-subtitle {
    color: var(--color-text-primary);
}

/* ========================================
   DARK MODE TOGGLE BUTTON
   ======================================== */

.theme-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1100;
    
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-full);
    
    width: 56px;
    height: 56px;
    
    display: flex;
    align-items: center;
    justify-content: center;
    
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    box-shadow: var(--shadow-md);
}

/* Responsive para móviles */
@media (max-width: 768px) {
    .theme-toggle {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 48px;
        height: 48px;
    }
    
    .theme-toggle-icon {
        width: 20px;
        height: 20px;
    }
}

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

.theme-toggle:active {
    transform: scale(0.95);
}

/* Dark mode toggle appearance */
[data-theme="dark"] .theme-toggle {
    background: rgba(30, 41, 59, 0.95);
    border-color: var(--color-border);
}

/* ========================================
   TOGGLE ICON
   ======================================== */

.theme-toggle-icon {
    position: relative;
    width: 24px;
    height: 24px;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Sol (light mode) */
.sun-icon {
    position: absolute;
    inset: 0;
    opacity: 1;
    transform: rotate(0deg) scale(1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    color: #f59e0b;
}

/* Luna (dark mode) */
.moon-icon {
    position: absolute;
    inset: 0;
    opacity: 0;
    transform: rotate(180deg) scale(0);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    color: #60a5fa;
}

/* Estado en dark mode */
[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: rotate(-180deg) scale(0);
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* ========================================
   AJUSTES ESPECÍFICOS PARA DARK MODE
   ======================================== */

/* Particles background ajustado */
[data-theme="dark"] #particles-js {
    background: var(--gradient-background);
}

/* Cards y superficies */
[data-theme="dark"] .photo-dev,
[data-theme="dark"] .About-image-container,
[data-theme="dark"] .project-card,
[data-theme="dark"] .certificate-card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-light);
}

/* Navegación */
[data-theme="dark"] .headerNav {
    background: rgba(30, 41, 59, 0.95);
    border: 1px solid var(--color-border-light);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

[data-theme="dark"] .headerNavLinks {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .headerNavBlock-active .headerNavLinks {
    background: var(--gradient-primary);
    color: var(--color-bg-primary);
}

/* Typing container */
[data-theme="dark"] .typing-container {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

[data-theme="dark"] .typing-container .cursor {
    background-color: var(--color-text-primary);
}

/* Botones */
[data-theme="dark"] .btn-primary {
    background-color: var(--color-primary);
    color: var(--color-bg-primary);
    border-color: var(--color-primary);
}

[data-theme="dark"] .btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--color-bg-primary);
}

[data-theme="dark"] .btn-secondary {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

[data-theme="dark"] .btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-bg-primary);
    border-color: var(--color-primary);
}

/* Hero label */
[data-theme="dark"] .hero-label {
    background: rgba(74, 222, 189, 0.15);
    color: var(--color-primary);
}

/* Skills */
[data-theme="dark"] .skill-bar {
    background: var(--color-bg-tertiary);
}

[data-theme="dark"] .skill-tag {
    background: var(--color-primary);
    color: var(--color-bg-primary);
}

/* Formulario */
[data-theme="dark"] .form-input,
[data-theme="dark"] .form-textarea,
[data-theme="dark"] .form-select {
    background: var(--color-bg-secondary);
    border-color: var(--color-border);
    color: var(--color-text-primary);
}

[data-theme="dark"] .form-input:focus,
[data-theme="dark"] .form-textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(74, 222, 189, 0.1);
}

[data-theme="dark"] .form-input::placeholder,
[data-theme="dark"] .form-textarea::placeholder {
    color: var(--color-text-tertiary);
}

[data-theme="dark"] .form-label,
[data-theme="dark"] label {
    color: var(--color-text-primary);
}

/* Sección de contacto */
[data-theme="dark"] .contact-section {
    color: var(--color-text-primary);
}

[data-theme="dark"] .contact-item h3,
[data-theme="dark"] .contact-item a {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .contact-item a:hover {
    color: var(--color-primary);
}

[data-theme="dark"] .contact-item i {
    color: var(--color-primary);
}

/* Referent links */
[data-theme="dark"] .referent {
    color: var(--color-primary);
}

[data-theme="dark"] .referent:hover {
    color: var(--color-primary-light);
}

/* Footer ajustado */
[data-theme="dark"] footer {
    background: var(--gradient-dark);
    border-top: 1px solid var(--color-border-light);
}

/* Links */
[data-theme="dark"] .inline-link {
    color: var(--color-primary);
}

[data-theme="dark"] .inline-link:hover {
    color: var(--color-primary-light);
}

/* Social icons */
[data-theme="dark"] .social-icons a {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .social-icons a:hover {
    color: var(--color-primary);
}

/* Project tags */
[data-theme="dark"] .project-tag {
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
}

[data-theme="dark"] .project-tag.tag-progress {
    background-color: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
}

/* Visitor counter */
[data-theme="dark"] .visitor-counter {
    background: rgba(30, 41, 59, 0.6);
    border-color: var(--color-border-light);
}

/* Imágenes - mejor visualización en dark mode */
[data-theme="dark"] img {
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

[data-theme="dark"] img:hover {
    opacity: 1;
}

/* Imágenes en cards - fondo para mejor contraste */
[data-theme="dark"] .project-image-container,
[data-theme="dark"] .certificate-logo-container {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
}

/* Logo certificados - mantener visibles con padding */
[data-theme="dark"] .certificate-logo-container {
    padding: var(--space-6);
}

[data-theme="dark"] .certificate-logo-container img {
    filter: brightness(1.1) contrast(0.95);
    background: rgba(255, 255, 255, 0.03);
    padding: var(--space-4);
    border-radius: var(--radius-md);
}

/* Badges de GitHub y certificados - máxima visibilidad */
[data-theme="dark"] .certificate-card img[src*="github"],
[data-theme="dark"] .certificate-card img[src*="badge"],
[data-theme="dark"] img[alt*="badge"],
[data-theme="dark"] img[alt*="GitHub"] {
    filter: brightness(1.2) contrast(1.1);
    background: rgba(255, 255, 255, 0.05);
    padding: var(--space-2);
    border-radius: var(--radius-sm);
}

/* Mejora de contraste para SVG */
[data-theme="dark"] img[src$=".svg"] {
    filter: brightness(1.1);
}

/* Logos de tecnologías */
[data-theme="dark"] .tech-logo,
[data-theme="dark"] .skills-icon {
    filter: brightness(1.15);
    background: rgba(255, 255, 255, 0.03);
    padding: var(--space-3);
    border-radius: var(--radius-md);
}

/* Imágenes de perfil/about - mantener visibilidad */
[data-theme="dark"] .photo-dev img,
[data-theme="dark"] .About-image {
    opacity: 0.95;
    filter: brightness(0.95) contrast(1.05);
}

/* ========================================
   CARDS DE PROYECTOS - DARK MODE
   ======================================== */

[data-theme="dark"] .project-card,
[data-theme="dark"] .certificate-card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-light);
}

[data-theme="dark"] .project-card:hover,
[data-theme="dark"] .certificate-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 8px 24px rgba(74, 222, 189, 0.15);
}

[data-theme="dark"] .project-card h3,
[data-theme="dark"] .certificate-card h3 {
    color: var(--color-text-primary);
}

[data-theme="dark"] .project-card p,
[data-theme="dark"] .certificate-card p {
    color: var(--color-text-secondary);
}

[data-theme="dark"] .project-content,
[data-theme="dark"] .certificate-content {
    color: var(--color-text-secondary);
}

/* ========================================
   LOADING STATE - EVITAR FLASH
   ======================================== */

body:not(.theme-loaded) {
    opacity: 0;
}

body.theme-loaded {
    opacity: 1;
    transition: opacity 0.3s ease;
}

/* ========================================
   ACCESSIBILITY - HIGH CONTRAST MODE
   ======================================== */

@media (prefers-contrast: high) {
    [data-theme="dark"] .btn-primary {
        border: 3px solid var(--color-primary);
    }
    
    [data-theme="dark"] .headerNav {
        border: 2px solid var(--color-primary);
    }
}

/* ========================================
   PRINT - FORZAR MODO CLARO
   ======================================== */

@media print {
    [data-theme="dark"] {
        --color-bg-primary: #ffffff;
        --color-text-primary: #000000;
    }
}