/* --- FUENTES --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700&display=swap');

@font-face {
    font-family: 'Hacker Argot';
    src: url('hacker-argot.ttf') format('truetype');
}

/* --- PALETA DE COLORES Y VARIABLES --- */
:root {
    --background-color: #202020;
    --header-background: rgba(0, 0, 0, 0.85);
    --text-color: #FFFFFF;
    --heading-color: #FFFFFF;
    --primary-blue: #00A9FF;
    --logo-name-color: #FFFFFF;
    --heading-gradient: linear-gradient(90deg, var(--heading-color), var(--primary-blue), var(--heading-color));
    --card-bg-color: #2a2a2a;
    --card-element-bg: #3a3a3a;
}

body.light-mode {
    --background-color: #d6d6d6;
    --header-background: rgba(250, 250, 250, 0.85);
    --text-color: #000000;
    --heading-color: #000000;
    --primary-blue: #0056b3;
    --logo-name-color: #000000;
    --heading-gradient: linear-gradient(90deg, var(--heading-color), var(--primary-blue), var(--heading-color));
    --card-bg-color: #e9e9e9;
    --card-element-bg: #f5f5f5;
}

/* --- ESTILOS GLOBALES --- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease; 
}

/* --- HEADER --- */
header {
    background-color: var(--header-background);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(139, 148, 158, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: background-color 0.3s ease;
}
.header-left { 
    flex: 1; 
    display: flex; 
    align-items: center; 
    justify-content: flex-start; 
    gap: 1rem;
    text-decoration: none;
}
.header-right { flex: 1; display: flex; align-items: center; justify-content: flex-end; }
.logo-image { width: 50px; height: 50px; object-fit: contain; }
.header-name {
    font-family: 'Hacker Argot', monospace;
    font-size: 2.2rem;
    color: var(--logo-name-color);
    transition: color 0.3s ease;
}
.language-selector { display: flex; gap: 1rem; margin-right: 5vw; }
.lang-btn { background: none; border: none; cursor: pointer; padding: 0; transition: transform 0.2s ease; }
.lang-btn img { width: 30px; height: 20px; object-fit: cover; border-radius: 3px; }
.lang-btn:hover { transform: scale(1.1); }

/* --- BARRA DE NAVEGACIÓN --- */
.main-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
}
.nav-link {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 40px;
    padding: 0 1rem;
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    min-width: 60px;
}
.nav-link .nav-icon {
    transition: opacity 0.3s ease, transform 0.3s ease;
    position: absolute;
}
.nav-link .nav-icon svg {
    width: 24px;
    height: 24px;
    fill: var(--text-color);
    transition: fill 0.3s ease;
}
.nav-link .nav-text {
    position: absolute;
    opacity: 0;
    white-space: nowrap;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}
.nav-link:hover .nav-icon {
    opacity: 0;
    transform: translateY(-10px);
}
.nav-link:hover .nav-text {
    opacity: 1;
    transform: translateY(0);
}
.nav-link.active .nav-icon svg {
    fill: var(--primary-blue);
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -1rem;
    left: 10%;
    width: 80%;
    height: 3px;
    background-color: var(--primary-blue);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.4s cubic-bezier(0.19, 1, 0.22, 1);
}
.nav-link.active::after {
    transform: scaleX(1);
}

/* --- SECCIONES --- */
section { 
    display: flex; 
    flex-direction: column; 
    justify-content: center; 
    align-items: center; 
    min-height: 100vh; 
    padding: 6rem 4rem; 
    text-align: center; 
}
.hero-container { max-width: 960px; }
.section-title { font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 700; background: var(--heading-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; background-size: 200% auto; animation: gradient-animate 5s linear infinite alternate; }
#main-title { margin-bottom: 0.5rem; }
@keyframes gradient-animate { from { background-position: 0% 50%; } to { background-position: 100% 50%; } }
.job-title { font-size: clamp(1.1rem, 4vw, 1.5rem); font-weight: 500; color: var(--primary-blue); margin-bottom: 1.5rem; letter-spacing: 0.5px; transition: color 0.3s ease; }
#subtitle { font-size: clamp(0.95rem, 2.5vw, 1.25rem); margin-bottom: 2.5rem; color: var(--text-color); transition: color 0.3s ease; }

/* --- CONTENIDO DE SECCIONES NUEVAS --- */
.section-container, .about-container, .contact-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
    width: 100%;
}
.about-description {
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    max-width: 800px;
    line-height: 1.7;
    color: var(--text-color);
}
.stats-container { display: flex; flex-wrap: wrap; gap: 2rem; justify-content: center; }
.stat-box { background: rgba(128, 128, 128, 0.1); border: 1px solid rgba(128, 128, 128, 0.2); border-radius: 10px; padding: 1.5rem 2.5rem; min-width: 220px; text-align: center; }
.stat-box h3 { font-size: 2.5rem; color: var(--primary-blue); }
.stat-box p { color: var(--text-color); font-weight: 500; }

/* --- ESTILOS DE TARJETAS DE PROYECTOS --- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1200px;
    justify-content: center;
}
.project-card {
    background: var(--card-bg-color);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}
.project-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background-color: var(--card-element-bg);
}
.project-card__logo {
    height: 25px;
    width: 25px;
    opacity: 0.8;
}
.project-card__controls {
    display: flex;
    gap: 0.5rem;
}
.control-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--background-color);
    opacity: 0.6;
}
.project-card__image {
    height: 220px;
    background-image: url('images/suiza.jpg'); /* Imagen por defecto para otros proyectos */
    background-size: cover;
    background-position: center;
}
.project-card.project-1 .project-card__image {
    background-image: url('images/proyecto1.jpg');
}
.project-card--placeholder .project-card__image {
    background-color: var(--card-element-bg);
    background-image: url(images/logo.svg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: 60px;
}
.project-card__info {
    padding: 1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-grow: 1; 
}
.project-card__title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--heading-color);
}
.project-card__description {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.8;
    line-height: 1.5;
}
.project-card__skills {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: auto; 
    padding-top: 1rem; 
}
.skill-tag {
    width: 24px;
    height: 24px;
    background-color: var(--text-color); 
    opacity: 0.7;
    transition: opacity 0.3s ease;
    -webkit-mask-size: contain;
    mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-position: center;
}
.project-card:hover .skill-tag {
    opacity: 1;
}
/* Definiciones para los iconos de skill-tag, usan los mismos assets que skill-icon */
.skill-tag.photoshop-icon { -webkit-mask-image: url(images/photoshop.svg); mask-image: url(images/photoshop.svg); }
.skill-tag.illustrator-icon { -webkit-mask-image: url(images/illustrator.svg); mask-image: url(images/illustrator.svg); }
.skill-tag.indesign-icon { -webkit-mask-image: url(images/indesign.svg); mask-image: url(images/indesign.svg); }
.skill-tag.figma-icon { -webkit-mask-image: url(images/figma.svg); mask-image: url(images/figma.svg); }
.skill-tag.canva-icon { -webkit-mask-image: url(images/canva.svg); mask-image: url(images/canva.svg); }
.skill-tag.css-icon { -webkit-mask-image: url(images/css.svg); mask-image: url(images/css.svg); }
.skill-tag.html-icon { -webkit-mask-image: url(images/html.svg); mask-image: url(images/html.svg); }
.skill-tag.js-icon { -webkit-mask-image: url(images/js.svg); mask-image: url(images/js.svg); }
.skill-tag.ux-icon { -webkit-mask-image: url(images/ux.svg); mask-image: url(images/ux.svg); }
.skill-tag.ui-icon { -webkit-mask-image: url(images/ui.svg); mask-image: url(images/ui.svg); }
.skill-tag.office-icon { -webkit-mask-image: url(images/office.svg); mask-image: url(images/office.svg); }
.skill-tag.ia-icon { -webkit-mask-image: url(images/ia.svg); mask-image: url(images/ia.svg); }


/* --- ESTILO DE TARJETAS DE HABILIDADES --- */
.skills-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); 
    row-gap: 3rem;
    column-gap: 1.5rem; 
    width: 100%; 
    max-width: 1200px; 
    justify-items: center; 
}
.skill-card {
    width: 100%;
    max-width: 240px;
    height: 280px;
    border-radius: 20px;
    padding: 2px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    position: relative;
    cursor: pointer;
    transition: transform 0.2s ease-in-out;
    outline: 2px solid var(--card-bg-color);
    outline-offset: 8px;
}
.skill-card:hover {
    transform: scale(1.05);
}
.skill-card__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--card-bg-color);
    color: var(--text-color);
    border-radius: 17px;
    width: 100%;
    height: 100%;
}
.skill-icon {
    width: 65px;
    height: 65px;
    background-color: var(--primary-blue);
    transition: background-color 0.3s ease;
    -webkit-mask-size: contain;
    mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-position: center;
    mask-position: center;
}
.skill-icon.photoshop-icon { -webkit-mask-image: url(images/photoshop.svg); mask-image: url(images/photoshop.svg); }
.skill-icon.illustrator-icon { -webkit-mask-image: url(images/illustrator.svg); mask-image: url(images/illustrator.svg); }
.skill-icon.indesign-icon { -webkit-mask-image: url(images/indesign.svg); mask-image: url(images/indesign.svg); }
.skill-icon.figma-icon { -webkit-mask-image: url(images/figma.svg); mask-image: url(images/figma.svg); }
.skill-icon.canva-icon { -webkit-mask-image: url(images/canva.svg); mask-image: url(images/canva.svg); }
.skill-icon.css-icon { -webkit-mask-image: url(images/css.svg); mask-image: url(images/css.svg); }
.skill-icon.html-icon { -webkit-mask-image: url(images/html.svg); mask-image: url(images/html.svg); }
.skill-icon.js-icon { -webkit-mask-image: url(images/js.svg); mask-image: url(images/js.svg); }
.skill-icon.ux-icon { -webkit-mask-image: url(images/ux.svg); mask-image: url(images/ux.svg); }
.skill-icon.ui-icon { -webkit-mask-image: url(images/ui.svg); mask-image: url(images/ui.svg); }
.skill-icon.office-icon { -webkit-mask-image: url(images/office.svg); mask-image: url(images/office.svg); }
.skill-icon.ia-icon { -webkit-mask-image: url(images/ia.svg); mask-image: url(images/ia.svg); }

.skill-title {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--heading-color);
    transition: color 0.3s ease;
}
.skill-description {
    font-size: 0.9rem;
    color: var(--text-color);
    line-height: 1.4;
    opacity: 0.8;
    transition: color 0.3s ease;
    text-align: center;
}

.contact-box { background: var(--card-bg-color); border: 1px solid rgba(128, 128, 128, 0.2); border-radius: 10px; padding: 2rem 3rem; text-align: left; max-width: 600px; width: 100%; box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2); }
.contact-box p { font-size: 1.1rem; color: var(--text-color); margin-bottom: 1rem; }
.contact-box p:last-child { margin-bottom: 0; }
.contact-box a { color: var(--primary-blue); text-decoration: none; transition: color 0.3s ease; }
.contact-box a:hover { color: var(--heading-color); }

/* --- DISEÑO DE BOTONES --- */
.button-container { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.modern-btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.75em; padding: 1em 1.5em; border-radius: 50px; font-family: inherit; font-size: 1rem; font-weight: 500; text-decoration: none; cursor: pointer; border: 2px solid transparent; transition: all 0.3s ease; }
.modern-btn svg { width: 1.25em; height: 1.25em; }
.modern-btn.primary { background-color: var(--primary-blue); color: #fff; box-shadow: 0 4px 15px rgba(0, 119, 255, 0.2); }
.modern-btn.primary span { color: #fff; }
.modern-btn.primary:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(0, 119, 255, 0.3); }
.modern-btn.secondary { background-color: transparent; color: var(--primary-blue); border-color: var(--primary-blue); }
.modern-btn.secondary span { color: var(--primary-blue); transition: color 0.3s ease; }
.modern-btn.secondary svg { fill: var(--primary-blue); transition: fill 0.3s ease; }
.modern-btn.secondary:hover { background-color: var(--primary-blue); color: #fff; transform: translateY(-3px); box-shadow: 0 8px 25px rgba(0, 119, 255, 0.2); }
.modern-btn.secondary:hover span { color: #fff; }
.modern-btn.secondary:hover svg { fill: #fff; }
.modern-btn:active { transform: scale(0.98) translateY(0); }

/* --- SWITCH MODO OSCURO --- */
.switch { font-size: 17px; position: relative; display: inline-block; width: 64px; height: 34px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { 
    position: absolute; 
    cursor: pointer; 
    top: 0; 
    left: 0; 
    right: 0; 
    bottom: 0; 
    background-color: var(--background-color); 
    border: 1px solid var(--text-color);
    transition: .4s; 
    border-radius: 30px;
}
.slider:before { position: absolute; content: ""; height: 30px; width: 30px; border-radius: 20px; left: 1px; bottom: 1px; z-index: 2; background-color: #e8e8e8; transition: .4s; }
.sun svg { position: absolute; top: 6px; left: 5px; z-index: 1; width: 24px; height: 24px; fill: #ffd43b; }
.moon svg { fill: var(--text-color); position: absolute; top: 5px; left: 36px; z-index: 1; width: 24px; height: 24px; transition: fill 0.3s ease; }
.sun svg { animation: rotate 15s linear infinite; }
@keyframes rotate { from { transform: rotate(0); } to { transform: rotate(360deg); } }
.input:focus + .slider { box-shadow: 0 0 2px var(--primary-blue); }
.input:checked + .slider:before { transform: translateX(30px); }

/* --- BOTÓN FLOTANTE VOLVER ARRIBA --- */
#scrollTopBtn { 
    position: fixed; 
    bottom: 2rem; 
    right: 2rem; 
    z-index: 999; 
    opacity: 0; 
    visibility: hidden; 
    transform: translateY(20px); 
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background-color 0.3s ease; 
    color: var(--text-color); 
    border-color: var(--text-color); 
}
#scrollTopBtn.visible { 
    opacity: 1; 
    visibility: visible; 
    transform: translateY(0); 
}
#scrollTopBtn span { 
    color: var(--text-color); 
    transition: color 0.3s ease; 
}
#scrollTopBtn svg { 
    fill: var(--text-color); 
    transition: fill 0.3s ease; 
}
#scrollTopBtn:hover { 
    background-color: var(--text-color); 
}
#scrollTopBtn:hover span { 
    color: var(--background-color); 
}
/* Regla para el hover del icono en modo oscuro (por defecto) */
#scrollTopBtn:hover svg { 
    fill: #000000; /* Forzar a negro */
}
/* Regla específica para el hover del icono en modo claro */
body.light-mode #scrollTopBtn:hover svg {
    fill: #FFFFFF; /* Forzar a blanco */
}

/* --- ESTILOS DE LA PÁGINA DE DETALLE DE PROYECTO --- */
.project-gallery {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
    padding: 2rem;
    width: 100%;
    margin-top: 100px; /* Offset for the fixed header */
}
.project-gallery img {
    max-width: 900px;
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.about-description p:not(:last-child) {
    margin-bottom: 1.5rem;
}

/* --- ESTILOS RESPONSIVE --- */
@media (max-width: 992px) {
    header { flex-wrap: wrap; row-gap: 1rem; padding-bottom: 0; }
    .header-left, .header-right { flex-basis: 50%; }
    .main-nav { order: 3; flex-basis: 100%; gap: 2rem; }
    .nav-link::after { bottom: 0; }
    .header-right { justify-content: flex-end; gap: 1.5rem; }
    .language-selector { margin-right: 0; }
}
@media (max-width: 768px) {
  header { padding: 1rem 1.5rem 0; row-gap: 0.5rem; }
  .header-name { font-size: 2rem; }
  section { padding: 8rem 2rem 2rem; }
  .project-gallery { margin-top: 80px; }
}
@media (max-width: 520px) {
  header { padding: 1rem; row-gap: 1rem; }
  .main-nav { justify-content: space-around; gap: 0; }
  .nav-link { min-width: auto; }
  .nav-link .nav-text { display: none; }
  .nav-link::after { bottom: -0.8rem; }
  .header-left { flex-basis: 50%; justify-content: flex-start; }
  .header-right { flex-basis: 50%; justify-content: flex-end; }
  .header-name { display: none; }
  .switch { transform: scale(0.9); }
  section { padding: 8rem 1.5rem 2rem; }
  .button-container { flex-direction: column; align-items: center; gap: 1rem; }
  .modern-btn { width: 100%; max-width: 320px; padding: 0.9em 1.2em; }
}