/* ================================================= */
/* VISUAL LANGUAGE: NEGRO / BLANCO / ROJO, BRUTALISTA */
/* ================================================= */

@font-face {
    font-family: 'Archivo Black';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('assets/fonts/archivo-black-latin.woff2') format('woff2');
}

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    background-color: #000000;
    color: #ffffff;
    font-family: 'Archivo Black', sans-serif;
    text-transform: uppercase;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
}

/* ================================================= */
/* 1. TOPBAR (NAV FIJA)                              */
/* ================================================= */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding: 16px 30px;
    background-color: #000000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
}

.brand {
    font-size: 1rem;
    letter-spacing: 2px;
    text-decoration: none;
}

.brand-accent {
    color: #FF0000;
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-links a {
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-decoration: none;
    opacity: 0.7;
    border-bottom: 2px solid transparent;
    padding-bottom: 2px;
    transition: opacity 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.nav-links a:hover,
.nav-links a.active {
    opacity: 1;
    color: #FF0000;
    border-bottom-color: #FF0000;
}

/* Language toggle (fusionado de lang.css) */
.lang-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.lang-btn {
    background: none;
    border: none;
    color: #ffffff;
    font-family: inherit;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 2px;
    cursor: pointer;
    padding: 4px;
    opacity: 0.4;
    transition: opacity 0.15s ease, color 0.15s ease;
}

.lang-btn.active {
    opacity: 1;
    color: #FF0000;
}

.lang-btn:hover:not(.active) {
    opacity: 0.85;
}

.lang-sep {
    opacity: 0.4;
    font-size: 0.8rem;
    user-select: none;
}

/* ================================================= */
/* 2. SECCIONES                                      */
/* ================================================= */
section {
    padding: 120px 30px 60px;
    scroll-margin-top: 90px;
    max-width: 1200px;
    margin: 0 auto;
}

h2 {
    font-size: clamp(1.6rem, 6vw, 3.5rem);
    letter-spacing: -1px;
    margin: 0 0 40px 0;
    display: flex;
    align-items: baseline;
    gap: 18px;
}

.sec-num {
    color: #FF0000;
    font-size: 0.6em;
}

/* Reveal on scroll */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.visible {
    opacity: 1;
    transform: none;
}

/* ================================================= */
/* 3. HERO                                           */
/* ================================================= */
#hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 60px;
}

#hero h1 {
    font-size: clamp(3rem, 13vw, 10rem);
    line-height: 0.9;
    letter-spacing: -3px;
    margin: 20px 0;
}

.hero-tagline {
    font-size: clamp(0.9rem, 3vw, 1.4rem);
    color: #FF0000;
    letter-spacing: 4px;
    margin: 0;
}

.hero-sub {
    font-size: clamp(0.75rem, 2.5vw, 1rem);
    letter-spacing: 3px;
    opacity: 0.7;
    margin: 0;
    text-transform: none;
}

.hero-lead {
    font-size: clamp(1.1rem, 4vw, 2.2rem);
    letter-spacing: 1px;
    line-height: 1.3;
    color: #ffffff;
    margin: 0 0 8px 0;
    text-transform: none;
    max-width: 640px;
}

.cta-button {
    display: inline-block;
    margin-top: 40px;
    background-color: #FF0000;
    color: #ffffff;
    border: 2px solid #FF0000;
    padding: 16px 30px;
    font-family: inherit;
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-decoration: none;
    transition: background-color 0.15s ease, color 0.15s ease;
    cursor: pointer;
}

.cta-button:hover {
    background-color: #000000;
    color: #FF0000;
}

.scroll-hint {
    margin-top: 60px;
    font-size: 1.5rem;
    opacity: 0.5;
    animation: bob 1.8s ease-in-out infinite;
}

@keyframes bob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* ================================================= */
/* 4. SOBRE MÍ                                       */
/* ================================================= */
.about-text {
    font-size: clamp(1rem, 3vw, 1.5rem);
    line-height: 1.7;
    letter-spacing: 1px;
    max-width: 800px;
    margin: 0;
    text-transform: none;
}

/* ================================================= */
/* 5. PROYECTOS (BLOQUES BLANCOS + SOMBRA ROJA)      */
/* ================================================= */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.project-card {
    background-color: #ffffff;
    color: #000000;
    padding: 28px;
    border-radius: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 260px;
    transition: transform 0.15s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                box-shadow 0.15s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 0 0 transparent;
}

.project-card h3 {
    font-size: clamp(1.5rem, 5vw, 2.5rem);
    margin: 0 0 8px 0;
    line-height: 0.95;
    letter-spacing: -1px;
}

.project-tags {
    color: #FF0000;
    font-size: 0.75rem;
    letter-spacing: 2px;
    margin: 0 0 16px 0;
}

.project-desc {
    font-size: 0.85rem;
    letter-spacing: 1px;
    line-height: 1.6;
    margin: 0 0 24px 0;
    text-transform: none;
    opacity: 0.85;
}

.project-link {
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-decoration: none;
    border-bottom: 3px solid #000000;
    padding-bottom: 4px;
    align-self: flex-start;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.project-link:hover {
    color: #FF0000;
    border-bottom-color: #FF0000;
}

.project-video-btn {
    background: none;
    border: none;
    border-bottom: 3px solid #000000;
    padding: 0 0 4px 0;
    align-self: flex-start;
    font-family: inherit;
    font-size: 0.85rem;
    letter-spacing: 2px;
    color: #000000;
    text-transform: uppercase;
    cursor: pointer;
    transition: color 0.15s ease, border-color 0.15s ease;
}

.project-video-btn:hover {
    color: #FF0000;
    border-bottom-color: #FF0000;
}

.project-card:hover {
    transform: translate(-12px, -12px);
    box-shadow: 12px 12px 0 #FF0000;
}

/* ================================================= */
/* 6. SKILLS                                         */
/* ================================================= */
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.skill-badge {
    border: 2px solid #ffffff;
    padding: 12px 18px;
    font-size: 0.8rem;
    letter-spacing: 2px;
    cursor: default;
    transition: border-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.skill-badge:hover {
    border-color: #FF0000;
    color: #FF0000;
    transform: translate(-3px, -3px);
}

/* ================================================= */
/* 6.5 SERVICIOS                                     */
/* ================================================= */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3px;
    background-color: #ffffff;
    border: 2px solid #ffffff;
}

.service-item {
    background-color: #000000;
    padding: 24px;
}

.service-item h3 {
    color: #FF0000;
    font-size: clamp(1rem, 3.5vw, 1.6rem);
    margin: 0 0 8px 0;
    letter-spacing: 1px;
}

.service-item p {
    margin: 0;
    font-size: 0.85rem;
    letter-spacing: 1px;
    line-height: 1.6;
    text-transform: none;
    opacity: 0.85;
}

@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ================================================= */
/* 7. ROADMAP                                        */
/* ================================================= */
.roadmap-list {
    list-style: none;
    counter-reset: roadmap;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 20px;
    max-width: 800px;
}

.roadmap-list li {
    counter-increment: roadmap;
    font-size: clamp(0.95rem, 3vw, 1.3rem);
    letter-spacing: 1px;
    line-height: 1.6;
    padding-left: 70px;
    position: relative;
    text-transform: none;
}

.roadmap-list li::before {
    content: counter(roadmap, decimal-leading-zero);
    position: absolute;
    left: 0;
    top: 0;
    color: #FF0000;
    font-size: 1.4em;
    letter-spacing: 0;
}

/* ================================================= */
/* 8. FOOTER / CONTACTO                              */
/* ================================================= */
footer#contact {
    padding: 80px 30px 60px;
    border-top: 5px solid #ffffff;
    text-align: center;
    max-width: none;
}

footer#contact h2 {
    justify-content: center;
    margin-bottom: 40px;
}

.social-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px 40px;
    margin-bottom: 30px;
}

.social-links a {
    color: #ffffff;
    text-decoration: none;
    font-size: clamp(0.9rem, 3.5vw, 1.2rem);
    letter-spacing: 2px;
    border-bottom: 2px solid transparent;
    transition: border-color 0.15s ease, color 0.15s ease;
}

.social-links a:hover {
    border-bottom-color: #FF0000;
    color: #FF0000;
}

.copyright {
    margin: 0;
    font-size: 0.75rem;
    letter-spacing: 2px;
    opacity: 0.5;
}

/* ================================================= */
/* 8.5 MEDIA QUERY (MÓVIL)                           */
/* ================================================= */
@media (max-width: 767px) {
    .topbar {
        padding: 12px 20px;
        row-gap: 8px;
    }

    .nav-links {
        flex-wrap: wrap;
        gap: 8px 16px;
        order: 3;
        width: 100%;
        justify-content: center;
    }

    section {
        padding: 90px 20px 50px;
        scroll-margin-top: 70px;
    }

    .roadmap-list li {
        padding-left: 50px;
    }
}

/* ================================================= */
/* 9. MEDIA QUERY (DESKTOP)                          */
/* ================================================= */
@media (min-width: 1024px) {
    section {
        padding: 140px 60px 80px;
    }

    .projects-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 40px;
    }

    .project-card {
        min-height: 300px;
    }

    .project-card:hover {
        transform: translate(-15px, -15px);
        box-shadow: 15px 15px 0 #FF0000;
    }

    .topbar {
        padding: 20px 50px;
    }
}

/* ================================================= */
/* 10. MODAL DE VIDEO                                */
/* ================================================= */
.video-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.9);
}

.video-modal[hidden] {
    display: none;
}

.video-modal-backdrop {
    position: absolute;
    inset: 0;
    cursor: pointer;
}

.video-modal-box {
    position: relative;
    background-color: #ffffff;
    color: #000000;
    padding: 20px;
    border: 4px solid #FF0000;
    width: 92%;
    max-width: 640px;
    max-height: 92vh;
    overflow-y: auto;
    z-index: 1;
}

.video-modal-close {
    position: absolute;
    top: 6px;
    right: 10px;
    background: none;
    border: none;
    color: #FF0000;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    padding: 4px;
    z-index: 2;
}

.video-modal-close:hover {
    color: #000000;
}

.video-modal-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 18px;
}

.video-modal-container video {
    width: 100%;
    max-height: 70vh;
    background-color: #000000;
}