/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html { scroll-behavior: smooth; }

body {
    background: linear-gradient(180deg, #000000 0%, #000244 100%);
    background-attachment: fixed;
    background-repeat: no-repeat;
    min-height: 100vh;
    font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
    color: white;
}

/* Reset global de links — sin margen automático */
a {
    color: white;
    text-decoration: none;
    margin: 0;
    padding: 0;
}

hr {
    border: none;
    height: 1px;
    background-color: rgba(255, 255, 255, 0.25);
}

h2, h3, p { color: white; }

/* ============================================================
   NAVBAR
   ============================================================ */
nav {
    width: 100%;
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

#paginas {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    width: 100%;
}

/* --- Iconos perfil + carrito (izquierda) --- */
.nav-iconos {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.nav-iconos a {
    display: flex;
    align-items: center;
    line-height: 0;
}

.nav-iconos a img {
    filter: brightness(0) invert(1);
    width: 26px;
    height: 26px;
    display: block;
    transition: opacity 0.2s;
}

.nav-iconos a:hover img { opacity: 0.65; }

/* --- Hamburger (solo mobile) --- */
.hamburger {
    display: none;           /* oculto en desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    flex-shrink: 0;
    line-height: 0;
}

.hamburger img {
    filter: brightness(0) invert(1);
    width: 26px;
    height: 26px;
    display: block;
}

/* --- Links de navegación (desktop, izquierda después de iconos) --- */
.paginas-botones {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-left: 6px;
}

.paginas-botones a {
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.87rem;
    padding: 6px 10px;
    border-radius: 4px;
    white-space: nowrap;
    transition: color 0.2s, background 0.2s;
    margin: 0;
}

.paginas-botones a:hover {
    color: white;
    background: rgba(255, 255, 255, 0.08);
}

/* --- Logo: siempre a la derecha con margin-left: auto --- */
#Tjust {
    margin-left: auto;
    color: white;
    font-size: clamp(1.1rem, 2.5vw, 1.55rem);
    white-space: nowrap;
    letter-spacing: 0.02em;
    flex-shrink: 0;
}

/* --- Menú desplegable mobile --- */
/* Por defecto: completamente oculto */
.mobile-menu {
    display: none;
    flex-direction: column;
    background: rgba(0, 2, 30, 0.98);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* Solo se muestra cuando JS añade la clase .open */
.mobile-menu.open {
    display: flex;
}

.mobile-menu a {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1rem;
    padding: 14px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    margin: 0;
    transition: background 0.2s, color 0.2s;
}

.mobile-menu a:hover {
    background: rgba(255, 255, 255, 0.06);
    color: white;
}

/* ============================================================
   HERO
   ============================================================ */
.Padre {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: clamp(40px, 8vw, 90px) 20px;
}

h1{

}


/* ============================================================
   SECCION PORTAFOLIO — TRABAJOS VENDIDOS Y CLIENTES
   Autoria: Just2Web
   Dos columnas con barra propia (título + buscador) y
   tarjetas dinámicas alimentadas desde java/portafolio.js
   ============================================================ */
.seccion-portafolio {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: clamp(20px, 4vw, 48px);
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: clamp(24px, 5vw, 40px) clamp(20px, 5vw, 60px) clamp(48px, 6vw, 80px);
}

.columna-portafolio {
    flex: 1 1 0;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

/* --- Separador vertical entre columnas --- */
.separador-portafolio {
    width: 1px;
    align-self: stretch;
    background: rgba(255, 255, 255, 0.15);
}

/* --- Barra de navegación propia de cada columna --- */
.barra-columna {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: sticky;
    top: 72px;
    z-index: 5;
}

.barra-columna h2 {
    font-size: 1.15rem;
    letter-spacing: 0.02em;
}

.buscador-columna {
    width: 100%;
    padding: 9px 14px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(0, 0, 0, 0.25);
    color: white;
    font-size: 0.85rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s, background 0.2s;
}

.buscador-columna::placeholder { color: rgba(255, 255, 255, 0.4); }

.buscador-columna:focus {
    border-color: rgba(255, 255, 255, 0.45);
    background: rgba(0, 0, 0, 0.4);
}

/* --- Lista/contenedor de tarjetas ---
   Cada columna tiene su propio alto máximo y scroll interno,
   independiente de la otra columna y del resto de la página. */
.tarjetas-lista {
    display: flex;
    flex-direction: column;
    gap: 16px;

    max-height: calc(100vh - 230px);
    overflow-y: auto;
    padding-right: 10px;
    padding-bottom: 4px;

    /* Firefox */
    scrollbar-width: thin;
    scrollbar-color: #00eaff rgba(255, 255, 255, 0.06);
}

/* --- Efecto neon de la barra de scroll (Chrome / Edge / Safari) --- */
.tarjetas-lista::-webkit-scrollbar {
    width: 8px;
}

.tarjetas-lista::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
}

.tarjetas-lista::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #00eaff, #7a5cff);
    border-radius: 10px;
    box-shadow: 0 0 6px #00eaff, 0 0 10px rgba(122, 92, 255, 0.6);
    transition: box-shadow 0.2s ease;
}

.tarjetas-lista::-webkit-scrollbar-thumb:hover {
    box-shadow: 0 0 10px #00eaff, 0 0 16px rgba(122, 92, 255, 0.85);
}

.tarjetas-vacio {
    opacity: 0.55;
    font-size: 0.88rem;
    padding: 20px 0;
    text-align: center;
}

/* --- Tarjeta individual (imagen + título + descripción + link) --- */
.tarjeta-portafolio {
    display: flex;
    flex-direction: column;
    flex-shrink: 0; /* evita que el flex-scroll la comprima/superponga */
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    overflow: hidden;
    transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.tarjeta-portafolio:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.08);
}

.tarjeta-imagen {
    width: 100%;
    aspect-ratio: 16 / 9;
    flex-shrink: 0;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.3);
}

.tarjeta-imagen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.35s ease;
}

.tarjeta-portafolio:hover .tarjeta-imagen img {
    transform: scale(1.05);
}

.tarjeta-contenido {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px 18px 20px;
}

.tarjeta-contenido h3 {
    font-size: 1.02rem;
    color: white;
}

.tarjeta-contenido p {
    font-size: 0.85rem;
    opacity: 0.7;
    line-height: 1.5;
}

.tarjeta-link {
    align-self: flex-start;
    margin-top: 4px;
    font-size: 0.82rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.85);
    padding: 6px 12px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 20px;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.tarjeta-link:hover {
    background: white;
    color: #000244;
    border-color: white;
}




/* ============================================================
   FOOTER
   ============================================================ */
.creditos {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: clamp(28px, 5vw, 80px);
    padding: clamp(32px, 5vw, 52px) clamp(20px, 5vw, 60px);
}

.creditos > div { display: flex; flex-direction: column; gap: 10px; }

.creditos-brand h2 {
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    color: white;
}

.creditos-brand p {
    font-size: 0.88rem;
    opacity: 0.6;
    color: white;
}

.creditos-redes h3,
.creditos-contacto h3 {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.5;
    color: white;
    margin: 0 0 8px 0;
}

.social-links {
    display: flex;
    gap: 14px;
    align-items: center;
}

.social-links a img {
    filter: brightness(0) invert(1);
    width: 28px;
    height: 28px;
    display: block;
    transition: opacity 0.2s, transform 0.2s;
}

.social-links a:hover img {
    opacity: 0.7;
    transform: scale(1.1);
}

.mail-link {
    color: rgba(255,255,255,0.75);
    font-size: 0.9rem;
    word-break: break-all;
    margin: 0;
    transition: color 0.2s;
}

.mail-link:hover { color: white; }

/* ============================================================
   RESPONSIVE — TABLET  ≤ 900px
   ============================================================ */
@media (max-width: 900px) {

    /* Ocultar links de desktop, mostrar hamburger */
    .paginas-botones { display: none; }
    .hamburger { display: block; }

    /* Hero: apilar índice arriba, contenido abajo */
    .Padre {
        flex-direction: column;
    }

    /* Portafolio: columnas apiladas, sin separador ni sticky */
    .seccion-portafolio {
        flex-direction: column;
        padding: 24px 20px 48px;
    }

    .separador-portafolio { display: none; }

    .barra-columna {
        position: static;
        top: auto;
    }

    .tarjetas-lista {
        max-height: 65vh;
    }

    /* Índice: de sidebar vertical a barra horizontal de chips */
    .Izquierda {
        width: 100%;
        height: auto;
        position: static;          /* deja de ser sticky */
        flex-direction: row;
        flex-wrap: wrap;
        gap: 6px;
        padding: 14px 16px;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        overflow-x: auto;
    }

    .indice-titulo { display: none; }

    /* Separador horizontal del índice también se oculta */
    .Izquierda hr { display: none; }

    .nav-link {
        font-size: 0.8rem;
        padding: 5px 10px;
        white-space: nowrap;
        border: 1px solid rgba(255, 255, 255, 0.18);
    }

    /* Contenido ocupa todo el ancho */
    .Derecha {
        max-width: 100%;
        padding: 24px 20px;
    }
}

/* ============================================================
   RESPONSIVE — MOBILE  ≤ 480px
   ============================================================ */
@media (max-width: 480px) {

    #paginas { padding: 10px 14px; gap: 8px; }

    .nav-iconos a img,
    .hamburger img { width: 22px; height: 22px; }

    #Tjust { font-size: 1rem; }

    .Derecha { padding: 16px 14px; }

    .section {
        padding: 20px 16px;
        margin-bottom: 28px;
    }

    .section h2 { font-size: 1.1rem; }

    /* Footer columna única */
    .creditos {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
        padding: 24px 16px;
    }

    /* Portafolio: barra y tarjetas más compactas */
    .barra-columna { padding: 12px 16px; }

    .tarjeta-contenido { padding: 14px 16px 18px; }

    .tarjetas-lista {
        max-height: 58vh;
        padding-right: 6px;
    }
}

/* ============================================================
   ACCESIBILIDAD
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    .slide, #central button, .social-links a img { transition: none; }
}