/* ========================================
   Sección Portafolio
   ======================================== */
.seccion-portafolio {
    padding: var(--padding-seccion);
    position: relative;
    z-index: 10;
    background: transparent;
    overflow: hidden;
    max-width: 100vw;
}

/* ── Carrusel ─────────────────────────────── */
.portafolio-carrusel {
    position: relative;
    margin-top: 60px;
}

/* Referencia de posicionamiento — overflow: hidden evita que el scroll
   interno del clip expanda el ancho del documento (bug iOS Safari) */
.portafolio-viewport {
    position: relative;
    width: 100%;
    overflow: hidden;
}

/* Contenedor de scroll — el navegador maneja el overflow/clipping */
.portafolio-clip {
    overflow-x: scroll;
    overflow-y: visible;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    border-radius: 14px;
    width: 100%;
}

.portafolio-clip::-webkit-scrollbar {
    display: none;
}

.portafolio-track {
    display: flex;
    gap: 28px;
}

/* ── Tarjetas ─────────────────────────────── */
.portafolio-card {
    flex: 0 0 calc((100% - 56px) / 3); /* 3 columnas en desktop */
    scroll-snap-align: start;
    min-width: 0;
    background: rgba(26, 26, 26, 0.88);
    border-radius: 12px;
    border: 1px solid var(--gris-medio);
    overflow: hidden;
    text-decoration: none;
    display: block;
    transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.35s ease;
    backdrop-filter: blur(5px);
    position: relative;
    will-change: transform;
}

.portafolio-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--dorado), transparent);
    transform: translateX(-100%);
    transition: transform 0.55s ease;
    z-index: 2;
}

.portafolio-card:hover::before {
    transform: translateX(100%);
}

.portafolio-card:hover {
    border-color: var(--dorado);
    box-shadow: 0 18px 40px rgba(255, 215, 0, 0.13),
                inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

/* ── Imagen del proyecto ───────────────────── */
.portafolio-imagen {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

/* Barra estilo Mac */
.portafolio-imagen::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 26px;
    background: rgba(36, 36, 36, 0.95);
    z-index: 2;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

/* Semáforos */
.portafolio-imagen::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 10px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--traffic-red);
    box-shadow:
        0 0 0 1px rgba(0,0,0,0.25),
        18px 0 0 0 var(--traffic-yellow),
        18px 0 0 1px rgba(0,0,0,0.25),
        36px 0 0 0 var(--traffic-green),
        36px 0 0 1px rgba(0,0,0,0.25);
    z-index: 3;
}

.portafolio-imagen img {
    width: 100%;
    object-fit: cover;
    display: block;
    margin-top: 26px;
    height: calc(100% - 26px);
    transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.portafolio-imagen .portafolio-placeholder {
    position: absolute;
    inset: 26px 0 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.portafolio-card:hover .portafolio-imagen img {
    transform: scale(1.06);
}

/* ── Overlay CTA ────────────────────────────── */
.portafolio-overlay {
    position: absolute;
    inset: 26px 0 0 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(3px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 4;
}

.portafolio-card:hover .portafolio-overlay {
    opacity: 1;
}

.portafolio-ver {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--dorado);
    color: var(--negro-primario);
    font-weight: 700;
    font-size: 14px;
    padding: 10px 22px;
    border-radius: 6px;
    box-shadow: 0 4px 18px rgba(255, 215, 0, 0.4);
    transform: translateY(8px);
    transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.3s;
}

.portafolio-card:hover .portafolio-ver {
    transform: translateY(0);
    box-shadow: 0 8px 28px rgba(255, 215, 0, 0.55);
}

/* ── Info del proyecto ──────────────────────── */
.portafolio-info {
    padding: 22px 24px 26px;
}

.portafolio-tipo {
    display: inline-block;
    background: rgba(255, 215, 0, 0.1);
    color: var(--dorado);
    border: 1px solid rgba(255, 215, 0, 0.2);
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    padding: 4px 12px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.portafolio-nombre {
    font-size: 18px;
    font-weight: 700;
    color: var(--texto-blanco);
    margin-bottom: 8px;
    line-height: 1.3;
    transition: color 0.25s;
}

.portafolio-card:hover .portafolio-nombre {
    color: var(--dorado);
}

.portafolio-descripcion {
    font-size: 14px;
    color: var(--texto-gris);
    line-height: 1.6;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ── Botones de navegación ─────────────────── */
.portafolio-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(18, 18, 18, 0.85);
    border: 1px solid var(--gris-medio);
    color: var(--texto-blanco);
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.25s, border-color 0.25s, transform 0.3s, box-shadow 0.25s;
    z-index: 10;
}

.portafolio-btn:hover {
    background: var(--dorado);
    border-color: var(--dorado);
    color: var(--negro-primario);
    box-shadow: 0 4px 18px rgba(255, 215, 0, 0.4);
    transform: translateY(-50%) scale(1.1);
}

.portafolio-btn-prev { left: 14px; }
.portafolio-btn-next { right: 14px; }

.portafolio-btn:disabled {
    opacity: 0.3;
    cursor: default;
    pointer-events: none;
}

/* ── Puntos indicadores ──────────────────────── */
.portafolio-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 32px;
}

.portafolio-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gris-medio);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: background 0.3s, width 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.portafolio-dot.activo {
    background: var(--dorado);
    width: 24px;
    border-radius: 4px;
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

/* ── Colores placeholder ─────────── */
.portafolio-placeholder-1 { background: linear-gradient(135deg, #1e3a5f, #1a1a2e); }
.portafolio-placeholder-2 { background: linear-gradient(135deg, #2d1b33, #1f0a20); }
.portafolio-placeholder-3 { background: linear-gradient(135deg, #0d3b3b, #051a1a); }
.portafolio-placeholder-4 { background: linear-gradient(135deg, #1a0533, #130033); }
.portafolio-placeholder-5 { background: linear-gradient(135deg, #0a2e1a, #071a0e); }
.portafolio-placeholder-6 { background: linear-gradient(135deg, #2e1a08, #1a0d00); }

.portafolio-placeholder i {
    opacity: 0.18;
    color: #fff;
    font-size: 3rem;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
    .portafolio-carrusel {
        margin-top: 40px;
    }

    /* Viewport ocupa 75% del contenedor → card 25% más chica que antes */
    .portafolio-viewport {
        width: 85%;
        margin: 0 auto;
        overflow: hidden;
    }

    .portafolio-card {
        flex: 0 0 100%;
    }

    .portafolio-track {
        gap: 0;
    }

    .portafolio-imagen {
        aspect-ratio: 16 / 8;
    }

    .portafolio-btn {
        display: none;
    }

    .portafolio-info {
        padding: 14px 16px 18px;
    }

    .portafolio-nombre {
        font-size: 15px;
    }

    .portafolio-descripcion {
        font-size: 13px;
    }
}