/* JJG: Configuración Global y Variables V4.0 (Terminal) */
:root {
    /* Tema Oscuro (Default) */
    --primary-color: #00FF41;
    /* Verde Neón */
    --accent-color: #FFA500;
    /* Ámbar/Naranja */
    --bg-color: #2a2a2a;
    --text-color: #e0e0e0;
    --card-bg: #1e1e1e;
    --border-color: var(--primary-color);
    --font-primary: 'Roboto Mono', monospace;
    --font-secondary: 'Roboto Mono', monospace;
    --header-height: 80px;
}

/* JJG: BUG FIX (El texto ya no cambia) */
body.light-theme {
    /* Tema Claro (Terminal Light) */
    --primary-color: #005A9C;
    /* Azul corporativo */
    --accent-color: #D9534F;
    /* Rojo para "bug" */
    --bg-color: #f4f7f6;
    --text-color: #333;
    --card-bg: #ffffff;
    --border-color: #ddd;
    /* Las variables --font-primary y --font-secondary NO se tocan */
}

/* JJG: Reseteo y Estilos Base */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* JJG: - Scan lines solo en modo oscuro */
body.dark-theme {
    background-image: repeating-linear-gradient(0deg,
            rgba(255, 255, 255, 0.03) 0px,
            rgba(255, 255, 255, 0.03) 1px,
            transparent 1px,
            transparent 3px);
    animation: scanlines 20s linear infinite;
}

.container {
    max-width: 1100px;
    margin: 2rem auto;
    padding: 0 2rem;
}

section[id] {
    scroll-margin-top: var(--header-height);
}

h1,
h2,
h3 {
    font-family: var(--font-primary);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

h2 {
    font-size: 2rem;
    border-bottom: 2px solid var(--border-color);
    display: inline-block;
    padding-bottom: 5px;
    margin-bottom: 2rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.2s ease;
}

/* JJG: V4.0 - Estilos de hover consistentes */
body.dark-theme a:hover {
    background-color: var(--primary-color);
    color: var(--card-bg);
}

body.light-theme a:hover {
    background-color: var(--primary-color);
    color: #fff;
}


ul {
    list-style: none;
}

/* JJG: Encabezado y Navegación V4.0 */
header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 0 2rem;
    height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

body.light-theme header {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.header-container {
    max-width: 1200px;
    height: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-primary);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

header nav ul {
    display: flex;
    gap: 1.5rem;
}

header nav a {
    font-weight: 700;
    font-size: 1rem;
    padding: 5px 10px;
    border-radius: 0;
}

body.dark-theme header nav a:hover {
    color: var(--card-bg);
    background-color: var(--primary-color);
}

body.light-theme header nav a:hover {
    color: #fff;
    background-color: var(--primary-color);
}


/* JJG: Contenedor de Controles */
.controls-container {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* JJG: Selector de Tema */
.theme-switcher {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}

.theme-switcher input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    border-radius: 34px;
    transition: .4s;
}

/* Lógica de íconos invertida (Modo Oscuro = checked) */
.slider:before {
    position: absolute;
    content: "\f186";
    /* Ícono de luna */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    border-radius: 50%;
    transition: .4s;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #3498db;
}

input:checked+.slider {
    background-color: #00FF41;
    /* Verde Neón */
}

input:checked+.slider:before {
    transform: translateX(22px);
    content: "\f186";
    /* Luna (permanece) */
}

/* Modo Claro (No chequeado) */
input:not(:checked)+.slider {
    background-color: #ccc;
}

input:not(:checked)+.slider:before {
    transform: translateX(0px);
    content: "\f185";
    /* Sol */
    color: #f39c12;
}


/* JJG: Menú Hamburguesa */
.hamburger {
    display: none;
    cursor: pointer;
    font-size: 1.8rem;
    color: var(--text-color);
}

/* JJG: Sección Hero */
#hero {
    background-color: var(--card-bg);
    padding: 4rem 2rem;
    border-bottom: 1px solid var(--border-color);
}

body.light-theme #hero {
    border-bottom: 1px solid var(--border-color);
}

.hero-content {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.hero-info {
    flex: 2;
}

.hero-info h1 {
    font-size: 2.8rem;
    margin-bottom: 0.5rem;
}

.hero-info h2 {
    font-size: 1.5rem;
    font-family: var(--font-secondary);
    color: var(--text-color);
    font-weight: 400;
    margin-bottom: 1rem;
    border: none;
}

/* JJG: - Animación de Tipeo */
.hero-info .tagline {
    font-size: 1.25rem;
    font-family: var(--font-primary);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    height: 1.5em;
    /* Prevenir salto de layout */
    display: inline-block;
}

/* Cursor parpadeante */
.tagline::after {
    content: '_';
    font-weight: 700;
    animation: blink 1s step-end infinite;
}

@keyframes blink {

    from,
    to {
        color: transparent;
    }

    50% {
        color: var(--primary-color);
    }
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.hero-image img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    border: 3px solid var(--border-color);
    transition: filter 0.3s ease, border-color 0.3s ease;
}

body.dark-theme .hero-image img {
    filter: grayscale(80%) contrast(1.2) brightness(0.9);
    /* Filtro */
}

body.dark-theme .hero-image img:hover {
    filter: none;
}

body.light-theme .hero-image img {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}


.social-links {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
}

.social-links a {
    font-size: 1.1rem;
    font-weight: 700;
    padding: 0.8rem 1.2rem;
    border: 2px solid var(--border-color);
    border-radius: 0;
}

body.light-theme .social-links a {
    border-color: var(--primary-color);
    border-radius: 5px;
}

.social-links a i {
    margin-right: 0.5rem;
}

/* JJG: Sección de Habilidades */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.skill-category {
    background: var(--card-bg);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

body.light-theme .skill-category {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}


.skill-category h3 {
    font-size: 1.4rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.skill-category ul {
    margin-top: 1rem;
}

.skill-category li {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.skill-category li i {
    color: var(--primary-color);
    font-size: 1.2rem;
    width: 25px;
    text-align: center;
}

/* JJG: Sección de Proyectos */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

body.light-theme .project-card {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

body.dark-theme .project-card:hover {
    border-color: var(--accent-color);
}

body.light-theme .project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: filter 0.3s ease;
}

body.dark-theme .project-card img {
    filter: grayscale(50%);
}

body.dark-theme .project-card:hover img {
    filter: none;
}


.card-content {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-content h3 {
    font-size: 1.5rem;
}

.card-content p {
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.btn {
    display: inline-block;
    background-color: transparent;
    color: var(--primary-color);
    padding: 0.8rem 1.5rem;
    border: 2px solid var(--primary-color);
    border-radius: 0;
    font-family: var(--font-primary);
    font-weight: 700;
    cursor: pointer;
    text-align: center;
    transition: all 0.3s ease;
}

body.dark-theme .btn:hover {
    background-color: var(--primary-color);
    color: var(--card-bg);
}

body.light-theme .btn {
    background-color: var(--primary-color);
    color: #fff;
    border-radius: 5px;
}

body.light-theme .btn:hover {
    background-color: #004170;
    /* Azul más oscuro */
    color: #fff;
}


/* JJG: Estilos de Modales */
.modal-backdrop {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.85);
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background-color: var(--card-bg);
    margin: 5% auto;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    width: 80%;
    max-width: 800px;
    position: relative;
    animation: slideDown 0.4s ease-out;
}

body.light-theme .modal-content {
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}


.modal-close {
    color: #aaa;
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
    font-family: var(--font-primary);
}

.modal-close:hover,
.modal-close:focus {
    color: var(--text-color);
}

.modal-active {
    display: block;
}

.modal-content h2 {
    margin-top: 0;
    font-size: 2rem;
}

.modal-content h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-top: 1.5rem;
}

.modal-content ul {
    list-style-type: none;
    margin-left: 0;
}

.modal-content ul li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
}

/*.modal-content ul li::before {
    content: '>$';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: 700;
}*/


.modal-image {
    width: 100%;
    border-radius: 0;
    margin-top: 1.5rem;
    border: 1px solid var(--border-color);
}

.impact {
    font-size: 1.1rem;
    font-weight: 700;
    background-color: var(--bg-color);
    padding: 1rem;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
}

.impact i {
    margin-right: 0.5rem;
}

/* Estilo de impacto "Success" */
.impact-success {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* JJG: Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideDown {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes scanlines {
    0% {
        background-position: 0 0;
    }

    100% {
        background-position: 0 100%;
    }
}


/* JJG: Footer */
footer {
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: #888;
}

/* JJG: Responsividad */
@media (max-width: 768px) {
    .header-container {
        padding: 0 1rem;
    }

    header nav {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: auto;
        background-color: var(--card-bg);
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
        transition: opacity 0.3s ease-in-out;
        opacity: 0;
        pointer-events: none;
        padding: 1.5rem 0;
        border-bottom: 1px solid var(--border-color);
    }

    header nav.nav-active {
        display: flex;
        opacity: 1;
        pointer-events: auto;
    }

    header nav.nav-active a {
        font-size: 1.5rem;
    }

    header nav ul {
        flex-direction: column;
    }

    .hamburger {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 30px;
        height: 30px;
        cursor: pointer;
        font-size: 1.8rem;
        color: var(--text-color);
    }

    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
        padding-top: 1rem;
    }

    .social-links {
        justify-content: center;
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 1rem;
    }


    /* JJG: Optimización del Theme Switcher para móvil */
    .theme-switcher {
        width: 30px;
        height: 30px;
    }

    .slider {
        background-color: transparent;
        width: 100%;
        height: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .slider:before {
        position: static;
        transform: none;
        background-color: transparent;
        font-size: 1.4rem;
        /* El ícono por defecto (Modo Oscuro) es la LUNA */

        content: "\f186";
        color: #3498db;
    }

    input:checked+.slider::before {
        transform: none;
        content: "\f186";
    }

    input:not(:checked)+.slider:before {
        transform: none;
        content: "\f185";
        color: #f39c12;
    }

    h2 {
        font-size: 1.8rem;
    }

    .hero-info h1 {
        font-size: 2rem;
    }

    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 1.5rem;
    }
}