:root {
    --bg-main: #0b0f19;
    --bg-card: #151d2a;
    --bg-card-hover: #1c273a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-primary: #6366f1; 
    --accent-secondary: #22d3ee; 
    --border-color: rgba(255, 255, 255, 0.08);
    --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

section[id] {
    scroll-margin-top: 90px;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent-secondary);
    outline-offset: 4px;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}


.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 8%;
    background: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-secondary);
    text-decoration: none;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--accent-secondary);
}


.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;

    padding: 120px 8% 80px;

    position: relative;
    overflow: hidden;

    background:
        radial-gradient(
            circle at 20% 30%,
            rgba(99, 102, 241, 0.18),
            transparent 35%
        ),
        radial-gradient(
            circle at 80% 70%,
            rgba(34, 211, 238, 0.10),
            transparent 30%
        ),
        var(--bg-main);
}

.hero::before {
    content: "";

    position: absolute;
    inset: 0;

    background:
        linear-gradient(
            rgba(255, 255, 255, 0.02) 1px,
            transparent 1px
        ),
        linear-gradient(
            90deg,
            rgba(255, 255, 255, 0.02) 1px,
            transparent 1px
        );

    background-size: 42px 42px;

    mask-image: linear-gradient(
        to bottom,
        black 0%,
        transparent 80%
    );

    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;

    width: 100%;
    max-width: 900px;

    text-align: center;
}

.hero-badge {
    display: inline-flex;

    padding: 7px 12px;

    margin-bottom: 22px;

    border: 1px solid rgba(34, 211, 238, 0.25);
    border-radius: 999px;

    background: rgba(34, 211, 238, 0.06);

    color: var(--accent-secondary);

    font-size: 11px;
    font-weight: 700;

    letter-spacing: 1.4px;
}

.hero-content h1 {
    max-width: 850px;

    margin: 0 auto 20px;

    font-size: clamp(3.4rem, 7vw, 6.5rem);
    line-height: 0.95;

    font-weight: 800;
    letter-spacing: -3px;
}

.hero-content h1 span {
    display: block;

    background: linear-gradient(
        135deg,
        var(--accent-primary),
        var(--accent-secondary)
    );

    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    max-width: 700px;

    margin: 0 auto 30px;

    color: var(--text-secondary);

    font-size: 1.1rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;

    justify-content: center;
    gap: 12px;

    flex-wrap: wrap;
}

.hero-availability {
    margin: -10px 0 22px;
    color: var(--accent-secondary);
    font-size: 0.85rem;
}

.servicios {
    padding: 7rem 8%;
}

.servicios-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.servicio-card {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: var(--transition);
}

.servicio-card:hover {
    transform: translateY(-4px);
    background: var(--bg-card-hover);
    border-color: rgba(34, 211, 238, 0.25);
}

.servicio-card h3 {
    margin-bottom: 0.7rem;
    font-size: 1.2rem;
}

.servicio-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.proyecto-destacado {
    display: inline-block;
    padding: 5px 9px;
    margin-bottom: 12px;
    border: 1px solid rgba(34, 211, 238, 0.25);
    border-radius: 999px;
    background: rgba(34, 211, 238, 0.06);
    color: var(--accent-secondary);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.hero-stack {
    display: flex;

    justify-content: center;
    flex-wrap: wrap;

    gap: 8px;

    margin-top: 28px;
}

.hero-stack span {
    padding: 5px 10px;

    border: 1px solid var(--border-color);
    border-radius: 999px;

    color: var(--text-secondary);

    background: rgba(255, 255, 255, 0.025);

    font-size: 11px;
    font-weight: 600;
}


.btn {
    padding: 0.8rem 1.8rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
}

.btn-primary {
    background: var(--accent-primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-secondary);
}



.sobre-mi {
    padding: 7rem 8%;
}

.section-heading {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 3rem;
}

.section-number {
    font-family: 'Roboto Mono', monospace;
    font-size: 0.8rem;
    color: var(--accent-secondary);
    letter-spacing: 1px;
}

.section-heading h2 {
    margin: 0;
}

.sobre-mi-grid {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 5rem;
    align-items: start;
}

.eyebrow {
    display: inline-block;

    margin-bottom: 14px;

    color: var(--accent-secondary);

    font-family: 'Roboto Mono', monospace;
    font-size: 0.7rem;
    font-weight: 700;

    letter-spacing: 1.5px;
}

.texto-perfil h3 {
    max-width: 650px;

    margin-bottom: 1.5rem;

    font-size: clamp(2rem, 4vw, 3.5rem);
    line-height: 1;

    letter-spacing: -1.5px;
}

.texto-perfil p {
    max-width: 680px;

    margin-bottom: 1.2rem;

    color: var(--text-secondary);

    font-size: 1.02rem;
    line-height: 1.7;
}

.perfil-datos {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dato-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;

    padding: 18px;

    background: var(--bg-card);

    border: 1px solid var(--border-color);
    border-radius: 12px;

    transition:
        transform 0.25s ease,
        border-color 0.25s ease,
        background 0.25s ease;
}

.dato-card:hover {
    transform: translateX(6px);

    background: var(--bg-card-hover);

    border-color: rgba(34, 211, 238, 0.25);
}

.dato-numero {
    font-family: 'Roboto Mono', monospace;

    color: var(--accent-primary);

    font-size: 0.75rem;
    font-weight: 700;
}

.dato-card h4 {
    margin-bottom: 4px;

    font-size: 1rem;
}

.dato-card p {
    margin: 0;

    color: var(--text-secondary);

    font-size: 0.85rem;
    line-height: 1.5;
}

.tech-stack {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    align-items: center;
    gap: 2rem;

    margin-top: 4rem;

    padding: 1.8rem 2rem;

    background:
        linear-gradient(
            135deg,
            rgba(99, 102, 241, 0.08),
            rgba(34, 211, 238, 0.04)
        );

    border: 1px solid var(--border-color);
    border-radius: 14px;
}

.tech-stack h3 {
    margin: 0.3rem 0 0;

    font-size: 1.4rem;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;

    list-style: none;
}

.skills-list span {
    padding: 7px 11px;

    border: 1px solid var(--border-color);
    border-radius: 999px;

    color: var(--text-primary);

    background: rgba(255, 255, 255, 0.03);

    font-size: 0.75rem;
    font-weight: 600;

    transition:
        border-color 0.2s ease,
        color 0.2s ease,
        transform 0.2s ease;
}

.skills-list span:hover {
    color: var(--accent-secondary);

    border-color: rgba(34, 211, 238, 0.35);

    transform: translateY(-2px);
}

.como-trabajo {
    margin-top: 4.5rem;
}

.como-trabajo-heading h3 {
    margin: 0.3rem 0 0.8rem;
    font-size: 1.4rem;
}

.como-trabajo-heading p {
    max-width: 560px;
    margin: 0 0 1.8rem;
    color: var(--text-secondary);
    font-size: 1.02rem;
    line-height: 1.7;
}

.pasos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.paso-card {
    padding: 1.4rem 1.3rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition:
        transform 0.25s ease,
        border-color 0.25s ease,
        background 0.25s ease;
}

.paso-card:hover {
    transform: translateY(-4px);
    background: var(--bg-card-hover);
    border-color: rgba(34, 211, 238, 0.25);
}

.paso-card h4 {
    margin: 10px 0 8px;
    font-size: 1rem;
}

.paso-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
}


.proyectos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.card-proyecto {
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
}

.card-proyecto:hover {
    transform: translateY(-6px);
    background: var(--bg-card-hover);
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.proyecto-imagen img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid var(--border-color);
}

.proyecto-imagen-vacia {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(34,211,238,0.05));
    border-bottom: 1px solid var(--border-color);
}

.proyecto-imagen-vacia span {
    font-family: 'Roboto Mono', monospace;
    font-size: 0.8rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.proyecto-info {
    padding: 1.5rem;
}

.proyecto-info h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
}

.proyecto-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.2rem;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    margin-bottom: 1.5rem;
}

.tags li {
    background: rgba(34, 211, 238, 0.1);
    color: var(--accent-secondary);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.proyecto-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.btn-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
}

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

.btn-link.demo {
    color: var(--accent-primary);
}

.btn-link.demo:hover {
    color: var(--accent-secondary);
}


.contacto {
    text-align: center;
}

.contacto p {
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2rem;
}

.contacto h3 {
    margin-bottom: 1rem;
    font-size: clamp(1.4rem, 3vw, 2rem);
}

.contacto-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.proyectos,
.contacto {
    padding: 7rem 8%;
}

.section-heading.centrado {
    justify-content: center;
}

.btn-cv {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: transparent;
    color: var(--accent-secondary);
    border: 1px dashed var(--accent-secondary);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.btn-cv:hover {
    background: rgba(34, 211, 238, 0.1);
}

footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    border-top: 1px solid var(--border-color);
}


#btn-menu-portafolio {
    display: none;
}

@media (max-width: 768px) {

    .proyectos-grid {
    grid-template-columns: 1fr;
}

    #btn-menu-portafolio {
        display: flex;
        margin-left: auto;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        background: none;
        border: 1px solid var(--border-color);
        border-radius: 8px;
        color: var(--text-primary);
        font-size: 18px;
        cursor: pointer;
    }

    .nav-links {
        display: none;
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        gap: 0;
        background: var(--bg-main);
        border-bottom: 1px solid var(--border-color);
        padding: 8px 0;
    }

    .nav-links.mostrar-movil {
        display: flex;
    }

    .nav-links li {
        border-top: 1px solid var(--border-color);
    }

    .nav-links a {
        display: block;
        padding: 14px 8%;
    }
    .navbar {
         padding: 1rem 5%;
    }
    
    .hero-content h1 {
         font-size: 2.5rem;
         letter-spacing: -1.5px;
    }
    
    .sobre-mi-grid {
         grid-template-columns: 1fr;
    }
    
    .contacto-links {
         flex-direction: column;
         align-items: center;

    }

    .sobre-mi,
    .servicios {
         padding: 5rem 6%;
     }

    .sobre-mi-grid {
         grid-template-columns: 1fr;
         gap: 2.5rem;
     }

    .texto-perfil h3 {
         font-size: 2.4rem;
     }

    .tech-stack {
         grid-template-columns: 1fr;
      gap: 1.5rem;
     }

     .pasos-grid {
    grid-template-columns: 1fr;
}
}

@media (max-width: 480px) {
    .servicios-grid {
        grid-template-columns: 1fr;
    }

    .tech-stack {
        padding: 1.5rem 1rem;
    }

    .hero-buttons .btn {
        width: 100%;
        padding-inline: 1rem;
    }
}