/* ===== VARIABLES GLOBALES — TEMA AFTER HOURS ===== */
:root {
    --color-red:         #CC0000;              
    --color-red-bright:  #FF2200;              
    --color-red-dim:     #550000;              
    --color-bg:          #050000;              
    --color-bg-alt:      #0d0000;              
    --color-surface:     #120000;              
    --color-white:       #ffffff;
    --color-text:        #f0eeee;              
    --color-text-muted:  #888080;              
    --color-border:      #2a0000;              
    --border-radius:     8px;
    --transition:        0.3s ease;
    --glow:              0 0 25px rgba(204, 0, 0, 0.5);
    --shadow:            0 4px 30px rgba(0, 0, 0, 0.9);
}

/* ===== RESET GENERAL ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Space Grotesk", sans-serif;
    font-weight: 400;
    background-color: var(--color-bg);
    color: var(--color-text);
    text-align: center;
}

/* ===== NAVEGACIÓN ===== */
#navbar {
    background-color: #000000;
    border-bottom: 1px solid var(--color-red-dim);
    padding: 15px;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
}

/* Logo de iniciales con brillo rojo */
.nav-logo {
    color: var(--color-red);
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: 3px;
    text-shadow: var(--glow);
}

#navbar ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 30px;
}

#navbar a {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: color var(--transition);
}

/* Resalta el link activo según la sección visible */
#navbar a:hover,
#navbar a.active {
    color: var(--color-red);
}

/* ===== HERO / CABECERA ===== */
.container {
    display: flex;
    height: 100vh;
    margin-top: 52px;
    background-color: #000000;
}

/* Panel izquierdo: texto sobre negro absoluto */
.text-content {
    flex: 1;
    background-color: #000000;
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: start;
    padding: 80px;
    /* degradado sutil desde el centro hacia el texto */
    background-image: radial-gradient(ellipse at 80% 50%, rgba(100,0,0,0.15) 0%, transparent 70%);
}

/* Título principal grande y dramático */
h1 {
    font-size: 3.5rem;
    font-weight: 700;
    text-align: left;
    color: var(--color-white);
    line-height: 1.1;
}

/* Subtítulo en rojo como acento */
.subtitulo {
    font-size: 1.1rem;
    margin-top: 10px;
    color: var(--color-red);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 500;
}

.header-buttons {
    display: flex;
    gap: 15px;
    margin-top: 28px;
}

/* ===== BOTONES ===== */
/* Botón primario: rojo sólido con brillo */
.btn-primary {
    padding: 12px 28px;
    font-size: 1rem;
    font-family: "Space Grotesk", sans-serif;
    font-weight: 600;
    color: var(--color-white);
    background-color: var(--color-red);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: background var(--transition), box-shadow var(--transition), transform 0.2s;
    animation: flotar 2s infinite ease-in-out;
}

.btn-primary:hover {
    animation: saltar 0.5s ease-in-out;
    background-color: var(--color-red-bright);
    box-shadow: var(--glow);
    text-decoration: none;
}

/* Botón secundario: borde rojo transparente */
.btn-secondary {
    padding: 12px 28px;
    font-size: 1rem;
    font-family: "Space Grotesk", sans-serif;
    font-weight: 600;
    color: var(--color-text);
    background-color: transparent;
    border: 1px solid var(--color-red-dim);
    border-radius: var(--border-radius);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: border-color var(--transition), color var(--transition);
}

.btn-secondary:hover {
    border-color: var(--color-red);
    color: var(--color-red);
    text-decoration: none;
}

/* ===== REDES SOCIALES EN HERO ===== */
.social-links {
    display: flex;
    gap: 20px;
    margin-top: 28px;
}

.social-links a {
    color: var(--color-text-muted);
    font-size: 1.8rem;
    transition: color var(--transition), text-shadow var(--transition);
}

.social-links a:hover {
    color: var(--color-red);
    text-shadow: var(--glow);
}

/* ===== IMAGEN DE PERFIL CON EFECTO FLIP ===== */
.image-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #000000;
    /* degradado desde la izquierda para unir con el panel de texto */
    background-image: radial-gradient(ellipse at 30% 50%, rgba(120,0,0,0.2) 0%, transparent 65%);
}

/* Contenedor externo: define el tamaño y la perspectiva 3D */
.flip-card {
    width: 300px;
    height: 300px;
    perspective: 1000px;
    cursor: pointer;
}

/* Pieza que rota: contiene las dos caras */
.flip-card-inner {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.7s ease;
    border-radius: 50%;
    /* anillo rojo brillante alrededor de la foto */
    box-shadow: 0 0 0 3px var(--color-red-dim), var(--glow);
}

/* Al pasar el cursor, gira 180 grados sobre el eje Y */
.flip-card:hover .flip-card-inner {
    transform: rotateY(180deg);
    box-shadow: 0 0 0 3px var(--color-red), 0 0 40px rgba(204, 0, 0, 0.7);
}

/* Estilos comunes de ambas caras */
.flip-card-front,
.flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden; /* compatibilidad Safari */
}

/* La cara trasera empieza girada 180°, invisible hasta el hover */
.flip-card-back {
    transform: rotateY(180deg);
}

/* Las imágenes ocupan toda la cara circular */
.flip-card-front img,
.flip-card-back img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

/* ===== SECCIONES GENERALES ===== */
section {
    padding: 70px 50px;
}

/* Secciones con fondo ligeramente diferente para crear ritmo */
#sobre-mi,
#proyectos {
    background-color: var(--color-bg-alt);
}

.section-dark {
    background-color: var(--color-bg);
}

/* Títulos de sección con línea roja debajo */
h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-white);
    display: inline-block;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-red);
    margin-bottom: 10px;
}

p {
    font-size: 1.1rem;
    margin-top: 12px;
    color: var(--color-text);
    line-height: 1.7;
}

a {
    color: var(--color-red);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
    color: var(--color-red-bright);
}

/* ===== ANIMACIÓN FADE-IN AL HACER SCROLL ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== HABILIDADES ===== */
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 30px;
}

/* Pill de habilidad: borde rojo, fondo oscuro */
.skill-tag {
    background-color: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-red-dim);
    padding: 10px 22px;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    transition: border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

.skill-tag:hover {
    border-color: var(--color-red);
    color: var(--color-red);
    box-shadow: var(--glow);
}

/* ===== PROYECTOS ===== */
.projects-grid {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    flex-wrap: wrap;
}

/* Tarjeta de proyecto: superficie oscura con acento rojo arriba */
.project-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-top: 2px solid var(--color-red-dim);
    border-radius: 10px;
    padding: 30px 20px;
    width: 260px;
    transition: transform var(--transition), box-shadow var(--transition), border-top-color var(--transition);
    text-align: left;
}

/* Al hacer hover la tarjeta sube y el borde rojo se ilumina */
.project-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--glow);
    border-top-color: var(--color-red);
}

.project-icon {
    font-size: 2rem;
    color: var(--color-red);
    margin-bottom: 12px;
}

.project-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--color-white);
}

.project-card p {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-top: 0;
}

.project-link {
    display: inline-block;
    margin-top: 15px;
    color: var(--color-red);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: color var(--transition);
}

.project-link:hover {
    color: var(--color-red-bright);
}

/* ===== FORMULARIO DE CONTACTO ===== */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 500px;
    margin: 30px auto 0;
    text-align: left;
}

.contact-form label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Campos del formulario: oscuros con borde rojizo */
.contact-form input,
.contact-form textarea,
.contact-form select {
    padding: 12px 15px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: "Space Grotesk", sans-serif;
    background-color: var(--color-surface);
    color: var(--color-text);
    transition: border-color var(--transition), box-shadow var(--transition);
}

/* El campo activo se ilumina con rojo */
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
    outline: none;
    border-color: var(--color-red);
    box-shadow: 0 0 10px rgba(204, 0, 0, 0.2);
}

.contact-form select option {
    background-color: var(--color-surface);
}

.contact-form textarea {
    resize: vertical;
}

.form-alt {
    margin-top: 15px;
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

/* Mensajes de error y éxito */
.form-msg {
    padding: 10px 15px;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    text-align: left;
}

.form-msg--error {
    background-color: rgba(204, 0, 0, 0.1);
    color: #ff6b6b;
    border: 1px solid var(--color-red-dim);
}

.form-msg--success {
    background-color: rgba(0, 180, 100, 0.1);
    color: #4ecca3;
    border: 1px solid rgba(0, 180, 100, 0.3);
}

/* ===== FOOTER ===== */
footer {
    background-color: #000000;
    border-top: 1px solid var(--color-red-dim);
    color: var(--color-text-muted);
    padding: 30px;
}

footer p {
    font-size: 0.9rem;
    margin: 0;
    letter-spacing: 1px;
}

footer .fas.fa-heart {
    color: var(--color-red);
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 12px;
}

.footer-social a {
    color: var(--color-text-muted);
    font-size: 1.4rem;
    transition: color var(--transition), text-shadow var(--transition);
}

.footer-social a:hover {
    color: var(--color-red);
    text-shadow: var(--glow);
    text-decoration: none;
}

/* ===== PÁGINA DE CONTACTO (contacto.html) ===== */
.contacto-page {
    padding-top: 52px;
}

.contacto-header {
    background-color: #000000;
    border-bottom: 1px solid var(--color-red-dim);
    color: var(--color-text);
    padding: 70px 20px;
    text-align: center;
    background-image: radial-gradient(ellipse at 50% 100%, rgba(100,0,0,0.2) 0%, transparent 70%);
}

.contacto-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    color: var(--color-white);
}

.contacto-header p {
    color: var(--color-text-muted);
    margin-top: 10px;
}

.contact-form--full {
    max-width: 600px;
}

.contact-info-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.contact-info-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.contact-info-item i {
    font-size: 1.8rem;
    color: var(--color-red);
}

.contact-info-item p {
    font-size: 0.95rem;
    margin: 0;
    color: var(--color-text-muted);
}

/* ===== ANIMACIONES ===== */
@keyframes flotar {
    0%   { transform: translateY(0px); }
    50%  { transform: translateY(-8px); }
    100% { transform: translateY(0px); }
}

@keyframes saltar {
    0%   { transform: translateY(0px); }
    50%  { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

/* ===== DISEÑO RESPONSIVO (MÓVIL) ===== */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
        height: auto;
    }

    .text-content {
        padding: 50px 30px;
        align-items: center;
        text-align: center;
    }

    h1 {
        font-size: 2.2rem;
        text-align: center;
    }

    .header-buttons {
        flex-direction: column;
        align-items: center;
    }

    .image-container {
        padding: 40px 30px;
    }

    .nav-container {
        flex-direction: column;
        gap: 10px;
    }

    #navbar ul {
        gap: 12px;
        flex-wrap: wrap;
        justify-content: center;
    }

    #navbar a {
        font-size: 0.8rem;
    }

    .contact-info-grid {
        flex-direction: column;
        align-items: center;
    }

    .project-card {
        text-align: center;
    }
}