/*
 *  PORTFOLIO DE DESARROLLADOR WEB
 *  ---------------------------------
 *  Autor: Ricardo Rausell
 *  Versión: 4.3 (Habilidades V3 - Tarjetas Compactas)
 *
 *  NOTAS:
 *  - Estilos formateados para máxima legibilidad.
 *  - Nomenclatura de clases con guion simple (ej. 'nav-logo').
*/

/* ============================================= */
/*      1. VARIABLES Y ESTILOS GLOBALES          */
/* ============================================= */
:root {
    --color-primary: #12F7D6;
    --color-primary-dark: #00A896;
    --color-bg: #101010; 
    --color-bg-secondary: #1a1a1a;
    --color-text: #e0e0e0;
    --color-text-secondary: #b3b3b3;
    --font-family: 'Poppins', sans-serif;
    --container-width: 1120px;
}

/* Reset básico y estilos base del body */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: var(--color-primary);
    transition: color 0.4s ease;
}

a:hover {
    color: var(--color-primary-dark);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ============================================= */
/*      2. CLASES DE AYUDA Y ESTILOS REUTILIZABLES */
/* ============================================= */
.container {
    max-width: var(--container-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.section {
    padding-top: 6rem;
    padding-bottom: 2rem;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--color-primary);
    color: #101010;
    padding: 0.8rem 2rem;
    border-radius: 5px;
    font-weight: 700;
    border: 2px solid var(--color-primary);
    transition: background-color 0.4s ease, color 0.4s ease, transform 0.4s ease, border-color 0.4s ease;
}

.button:hover {
    background-color: transparent;
    color: var(--color-primary);
    transform: translateY(-3px);
}

.button-outline {
    background-color: transparent;
    color: var(--color-primary);
}

.button-outline:hover {
    background-color: var(--color-primary);
    color: #101010;
}

/* ============================================= */
/*          3. HEADER Y NAVEGACIÓN               */
/* ============================================= */
.header {
    width: 100%;
    background-color: rgba(16, 16, 16, 0.8);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 100;
    border-bottom: 1px solid var(--color-bg-secondary);
}

.nav {
    height: 4.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--color-text);
    font-weight: 600;
    position: relative;
    padding-bottom: 0.5rem;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width 0.4s ease;
}

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

.nav-link-button {
    background-color: var(--color-primary);
    color: #101010;
    padding: 0.5rem 1.5rem;
    border-radius: 5px;
}

.nav-link-button:hover {
    color: #101010;
    background-color: var(--color-primary-dark);
}

.nav-link-button::after {
    display: none;
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ============================================= */
/*    4. INICIO / SOBRE MÍ (SECCIÓN UNIFICADA)   */
/* ============================================= */
.hero-about {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 4.5rem;
}

.hero-about-container {
    display: grid;
    grid-template-columns: 1fr 0.8fr;
    align-items: center;
    gap: 5rem;
}

.hero-about-text {
    animation: fadeIn 1.5s ease-in-out;
}

.hero-about-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

.hero-about-name {
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-about-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

.hero-about-description {
    max-width: 550px;
    margin-bottom: 2.5rem;
}

.hero-about-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
}

.hero-about-secondary-actions {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.secondary-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.secondary-link:hover {
    color: var(--color-primary);
}

.secondary-link i {
    font-size: 1.2rem;
}

.hero-about-image {
    position: relative;
    max-width: 400px;
    justify-self: center;
    animation: fadeIn 1.5s ease-in-out 0.3s;
    animation-fill-mode: both;
}

.hero-about-image img {
    border-radius: 15px;
    border: 3px solid var(--color-bg-secondary);
    transform: rotate(3deg);
    transition: transform 0.4s ease;
}

.hero-about-image:hover img {
    transform: rotate(0deg);
}

.hero-about-image::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    border: 3px solid var(--color-primary);
    border-radius: 15px;
    z-index: -1;
    transition: all 0.4s ease;
}

.hero-about-image:hover::after {
    top: 10px;
    left: 10px;
    right: -10px;
    bottom: -10px;
}

/* ============================================= */
/*          5. MARQUESINA DE TECNOLOGÍAS         */
/* ============================================= */
.tech-stack-marquee {
    width: 100%;
    padding: 1.5rem 0;
    background-color: var(--color-bg-secondary);
    overflow: hidden;
    white-space: nowrap;
    border-top: 1px solid #2a2a2a;
    border-bottom: 1px solid #2a2a2a;
}

.tech-stack-marquee-content {
    display: inline-block;
    animation: scroll-left 25s linear infinite;
}

.tech-stack-marquee-content i {
    font-size: 2.5rem;
    margin: 0 2rem;
    color: var(--color-text-secondary);
    transition: color 0.4s ease, transform 0.4s ease;
}

.tech-stack-marquee-content i:hover {
    color: var(--color-primary);
    transform: scale(1.2);
}

/* ============================================= */
/*          6. SECCIÓN PROYECTOS                 */
/* ============================================= */
.project-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    border-radius: 15px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(34, 34, 34, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: transform 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.project-img {
    width: 100%;
    object-fit: cover;
}

.project-data {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.project-description {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-tags span {
    background-color: var(--color-bg);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.project-links {
    display: flex;
    gap: 1.5rem;
    margin-top: auto;
}

.project-link {
    font-weight: 600;
}

.project-link i {
    margin-left: 0.3rem;
}

/* ============================================= */
/*   7. SECCIÓN EXPERIENCIA Y EDUCACIÓN (Timeline) */
/* ============================================= */
.timeline-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
}

.timeline-title {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--color-primary);
    display: inline-block;
}

.timeline-item {
    position: relative;
    padding-left: 2.5rem;
    padding-bottom: 2.5rem;
    border-left: 2px solid var(--color-bg-secondary);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--color-bg);
    border: 3px solid var(--color-primary);
    left: -9px;
    top: 0;
}

.timeline-item-title {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
}

.timeline-item-subtitle {
    display: block;
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
}

.timeline-item-description {
    color: var(--color-text-secondary);
}

/* ============================================= */
/*  8. SECCIÓN HABILIDADES (TARJETAS MODERNAS)   */
/* ============================================= */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

/* La tarjeta de categoría */
.skills-category {
    background-color: var(--color-bg-secondary);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid #2a2a2a; /* Borde sutil por defecto */
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.skills-category:hover {
    transform: translateY(-8px); /* Efecto de elevación más pronunciado */
    border-color: var(--color-primary);
    box-shadow: 0 8px 25px rgba(18, 247, 214, 0.1); /* Sombra de color turquesa */
}

/* Título de la categoría */
.skills-category h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #333; /* Línea separadora */
}

/* Icono del título (simulado) */
.skills-category h3::before {
    content: '›'; /* Usamos un carácter como icono para un look tech */
    font-family: monospace;
    font-size: 1.5rem;
    color: var(--color-primary);
    line-height: 1;
}

/* Lista de habilidades */
.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem; /* Espaciado más compacto */
}

/* Píldora de habilidad individual */
.skills-list span {
    background-color: var(--color-bg);
    padding: 0.4rem 0.9rem;
    border-radius: 5px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease, background-color 0.3s ease;
}

.skills-list span:hover {
    background-color: var(--color-primary);
    color: var(--color-bg);
}

/* Icono dentro de la píldora */
.skills-list i {
    color: var(--color-primary-dark);
    transition: color 0.3s ease;
}

.skills-list span:hover i {
    color: var(--color-bg);
}


/* ============================================= */
/*          9. SECCIÓN CONTACTO (CENTRADA)      */
/* ============================================= */
.contact-section {
    background-color: var(--color-bg-secondary);
    padding: 6rem 0;
}

.contact-section .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.contact-description {
    max-width: 600px;
    margin: 0 auto 2.5rem;
    color: var(--color-text-secondary);
    font-size: 1.1rem;
}

/* ============================================= */
/*          10. FOOTER (PIE DE PÁGINA)           */
/* ============================================= */
.footer {
    padding: 2rem 0;
    text-align: center;
}

.footer-social {
    margin-bottom: 1rem;
}

.footer-social-link {
    font-size: 1.5rem;
    margin: 0 0.75rem;
    color: var(--color-text-secondary);
    display: inline-block;
    transition: color 0.4s ease, transform 0.4s ease;
}

.footer-social-link:hover {
    color: var(--color-primary);
    transform: translateY(-3px);
}

.footer-copy {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* ============================================= */
/*          11. ANIMACIONES                      */
/* ============================================= */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scroll-left {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(-50%);
    }
}

/* ============================================= */
/*      12. DISEÑO RESPONSIVO (Media Queries)    */
/* ============================================= */
@media (max-width: 992px) {
    .container { max-width: 720px; }
    .hero-about-container { grid-template-columns: 1fr; text-align: center; gap: 3rem; }
    .hero-about-text { order: 2; }
    .hero-about-image { order: 1; max-width: 300px; }
    .hero-about-description { margin-left: auto; margin-right: auto; }
    .hero-about-actions { align-items: center; }
    .timeline-container { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 4.5rem;
        right: -100%;
        width: 100%;
        height: calc(100vh - 4.5rem);
        background-color: var(--color-bg);
        transition: right 0.4s ease;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .nav-menu.active { right: 0; }
    .nav-list { flex-direction: column; gap: 3rem; text-align: center; }
    .nav-toggle { display: block; }
    .hero-about { min-height: auto; padding-top: 6rem; padding-bottom: 4rem; }
    .hero-about-title { font-size: 3rem; }
    .hero-about-subtitle { font-size: 1.2rem; }
}

@media (max-width: 576px) {
    .section-title { font-size: 2rem; }
    .hero-about-title { font-size: 2.5rem; }
    .project-container { grid-template-columns: 1fr; }
}