/* ============================================
   RESET Y CONFIGURACIÓN BASE
   ============================================ */

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

:root {
    /* Colores principales */
    --color-bg-primary: #000000;
    --color-bg-secondary: #0a0a0a;
    --color-accent: #00FFFF;
    --color-accent-hover: #00E6E6;
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #CCCCCC;
    --color-text-muted: #888888;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   HEADER Y NAVEGACIÓN
   ============================================ */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 255, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
    gap: var(--spacing-sm);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.logo-text {
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.7), 0 0 30px rgba(0, 255, 255, 0.4);
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-accent) 0%, #00E6E6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
    transition: all var(--transition-normal);
}

.logo-text:hover {
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.9), 0 0 40px rgba(0, 255, 255, 0.6);
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-sm);
    align-items: center;
    flex-wrap: nowrap;
}

.nav-menu a {
    color: var(--color-text-primary);
    text-decoration: none;
    font-weight: 400;
    transition: color var(--transition-fast);
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-normal);
}

.nav-menu a:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Selector de idioma */
.language-selector {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-right: var(--spacing-sm);
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    transition: color var(--transition-fast);
    text-decoration: none;
    display: inline-block;
}

.lang-btn:hover,
.lang-btn.active {
    color: var(--color-accent);
}

.lang-separator {
    color: var(--color-text-muted);
}

/* Botón CTA Header */
.btn-cta-header {
    background-color: transparent;
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
    padding: 0.6rem 1.2rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 4px;
    transition: all var(--transition-normal);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
    white-space: nowrap;
}

.btn-cta-header:hover {
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
    box-shadow: 0 0 25px rgba(0, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* Menú hamburguesa para móvil */
.menu-toggle {
    display: none;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
    gap: 5px;
    padding: 0.5rem;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-accent);
    transition: all var(--transition-normal);
    border-radius: 2px;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-md);
    margin-top: 80px;
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.05) 0%, rgba(0, 0, 0, 1) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 255, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-container {
    max-width: 900px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    letter-spacing: -1px;
}

.hero-title .accent-word {
    color: var(--color-accent);
    text-shadow: 0 0 25px rgba(0, 255, 255, 0.6), 0 0 50px rgba(0, 255, 255, 0.3);
    font-weight: 900;
    background: linear-gradient(135deg, var(--color-accent) 0%, #00E6E6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.hero-title strong {
    color: var(--color-accent);
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.5);
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
    line-height: 1.8;
}

/* Botón CTA Principal */
.btn-cta-primary {
    display: inline-block;
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
    padding: 1rem 2.5rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: 4px;
    transition: all var(--transition-normal);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.4);
    border: 2px solid var(--color-accent);
}

.btn-cta-primary:hover {
    background-color: var(--color-accent-hover);
    box-shadow: 0 0 40px rgba(0, 255, 255, 0.6);
    transform: translateY(-3px);
}

/* ============================================
   SECCIÓN DE BENEFICIOS
   ============================================ */

.benefits {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-secondary);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-accent);
    font-weight: 700;
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.benefit-card {
    background-color: rgba(10, 10, 10, 0.8);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 8px;
    padding: var(--spacing-md);
    text-align: center;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.benefit-card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
    transform: translateY(-5px);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.benefit-title {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.benefit-description {
    color: var(--color-text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* ============================================
   SECCIÓN DE PROYECTOS
   ============================================ */

.projects {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-primary);
}

.projects-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.project-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    padding: var(--spacing-md);
    background-color: rgba(10, 10, 10, 0.5);
    border-radius: 8px;
    border: 1px solid rgba(0, 255, 255, 0.1);
    transition: all var(--transition-normal);
}

.project-item:hover {
    border-color: var(--color-accent);
    box-shadow: 0 0 25px rgba(0, 255, 255, 0.2);
}

.project-item.reverse {
    direction: rtl;
}

.project-item.reverse > * {
    direction: ltr;
}

.project-image {
    width: 110%;
    height: 280px;
    background-color: rgba(0, 255, 255, 0.05);
    border: 2px dashed rgba(0, 255, 255, 0.3);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.image-placeholder {
    color: var(--color-text-muted);
    text-align: center;
    padding: var(--spacing-md);
    font-size: 0.9rem;
    font-style: italic;
}

/* INSERTAR IMAGEN: Reemplazar .image-placeholder con <img> cuando tengas las imágenes */
.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 6px;
}

.project-content {
    padding: var(--spacing-sm);
}

.project-title {
    font-size: 1.8rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.project-metric {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.project-description {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* ============================================
   SECCIÓN DE TECNOLOGÍAS
   ============================================ */

.skills {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-primary);
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    justify-content: center;
    align-items: center;
}

.skill-badge {
    background-color: rgba(0, 255, 255, 0.08);
    border: 2px solid rgba(0, 255, 255, 0.3);
    color: var(--color-accent);
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    cursor: default;
}

.skill-badge:hover {
    background-color: rgba(0, 255, 255, 0.15);
    border-color: var(--color-accent);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.5), 0 4px 20px rgba(0, 255, 255, 0.2);
    transform: translateY(-3px) scale(1.05);
}

/* ============================================
   SECCIÓN ABOUT
   ============================================ */

.about {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    align-items: start;
}

.about-image {
    padding: var(--spacing-md);
}

.profile-photo {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 8px;
    border: 2px solid rgba(0, 255, 255, 0.2);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    transition: all var(--transition-normal);
}

.profile-photo:hover {
    border-color: var(--color-accent);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.4);
    transform: scale(1.02);
}

.about-content {
    padding: var(--spacing-md);
}

.about-text {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.about-text strong {
    color: var(--color-accent);
    font-weight: 600;
}

/* ============================================
   FORMULARIO DE CONTACTO
   ============================================ */

.contact-form-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-secondary);
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    margin-top: 80px;
}

.contact-intro {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: rgba(10, 10, 10, 0.8);
    border: 1px solid rgba(0, 255, 255, 0.2);
    border-radius: 8px;
    padding: var(--spacing-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    color: var(--color-accent);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background-color: rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(0, 255, 255, 0.2);
    border-radius: 4px;
    color: var(--color-text-primary);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: all var(--transition-normal);
    box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
    background-color: rgba(0, 0, 0, 0.7);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2300FFFF' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn-cta-primary {
    width: 100%;
    margin-top: var(--spacing-md);
    text-align: center;
    cursor: pointer;
}

.contact-form .btn-cta-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-message {
    max-width: 600px;
    margin: 0 auto var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    animation: slideDown 0.3s ease;
}

.form-message.success {
    background-color: rgba(0, 255, 0, 0.1);
    border: 2px solid rgba(0, 255, 0, 0.3);
    color: #00ff00;
}

.form-message.error {
    background-color: rgba(255, 0, 0, 0.1);
    border: 2px solid rgba(255, 0, 0, 0.3);
    color: #ff4444;
}

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

/* ============================================
   FOOTER
   ============================================ */

.footer {
    padding: var(--spacing-xl) 0 var(--spacing-md);
    background-color: var(--color-bg-primary);
    border-top: 1px solid rgba(0, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section {
    padding: var(--spacing-md);
}

.footer-title {
    font-size: 1.3rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.footer-text {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

/* Botón CTA Footer */
.btn-cta-footer {
    display: inline-block;
    background-color: transparent;
    border: 2px solid var(--color-accent);
    color: var(--color-accent);
    padding: 0.8rem 2rem;
    text-decoration: none;
    font-weight: 600;
    border-radius: 4px;
    transition: all var(--transition-normal);
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
    margin-top: var(--spacing-sm);
}

.btn-cta-footer:hover {
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
    box-shadow: 0 0 25px rgba(0, 255, 255, 0.5);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(0, 255, 255, 0.1);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablets y pantallas medianas */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: rgba(0, 0, 0, 0.98);
        width: 100%;
        text-align: center;
        transition: left var(--transition-normal);
        padding: var(--spacing-md) 0;
        border-top: 1px solid rgba(0, 255, 255, 0.2);
    }

    .nav-menu.active {
        left: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .header-actions {
        gap: var(--spacing-xs);
    }

    .btn-cta-header {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    .project-item,
    .project-item.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }

    .project-image {
        height: 250px;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .skills-grid {
        gap: var(--spacing-sm);
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .contact-form-section {
        padding: var(--spacing-lg) 0;
        min-height: auto;
    }

    .contact-form {
        padding: var(--spacing-md);
    }
}

/* Móviles */
@media (max-width: 640px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .nav-container {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .logo {
        font-size: 1rem;
    }

    .language-selector {
        margin-right: 0.5rem;
    }

    .btn-cta-header {
        display: none; /* Ocultar en móvil para ahorrar espacio */
    }

    .hero {
        padding: var(--spacing-lg) var(--spacing-sm);
        margin-top: 60px;
    }

    .hero-title {
        margin-bottom: var(--spacing-sm);
    }

    .hero-subtitle {
        margin-bottom: var(--spacing-md);
    }

    .btn-cta-primary {
        padding: 0.9rem 2rem;
        font-size: 1rem;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .benefit-card {
        padding: var(--spacing-sm);
    }

    .projects-list {
        gap: var(--spacing-md);
    }

    .project-item {
        padding: var(--spacing-sm);
    }

    .project-image {
        width: 100%;
        height: 200px;
    }

    .project-title {
        font-size: 1.5rem;
    }

    .skills-grid {
        gap: var(--spacing-xs);
    }

    .skill-badge {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }
}

/* Ajustes adicionales para pantallas muy pequeñas */
@media (max-width: 400px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .benefit-title,
    .project-title {
        font-size: 1.3rem;
    }
}

/* ============================================
   FIX: Asegurar que las imágenes de "projects" cubran todo el contenedor
   ============================================ */
.project-image .image-placeholder {
    /* quitar padding del contenedor que limita la imagen */
    padding: 0;
    width: 100%;
    height: 100%;
}

.project-image img,
.project-image .profile-photo {
    /* forzar que la imagen llene el contenedor y recorte correctamente */
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 6px;
}