/* Estilos generales de la sección de portafolio */
.portafolio-section {
    background: radial-gradient(circle at top, rgba(15, 25, 45, 0.85) 0%, rgba(10, 10, 10, 0.95) 35%),
                linear-gradient(135deg, #0a0a0a 0%, #161616 100%);
    padding: 8rem 2.5rem;
    position: relative;
    overflow: hidden;
}

.portafolio-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: min(420px, 60%);
    height: 4px;
    background: linear-gradient(90deg, #1860ff, #00f2fe);
    border-radius: 999px;
    opacity: 0.65;
}

.portafolio-container {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.section-title {
    color: #fff;
    font-size: 3.5rem;
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 700;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #1860ff, #00f2fe);
    border-radius: 2px;
}

.section-subtitle {
    color: #a0a0a0;
    font-size: 1.65rem;
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
    line-height: 1.6;
}

/* Grid de proyectos */
.portafolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 3rem;
    margin-bottom: 5rem;
}

/* Tarjeta de proyecto */
.proyecto-card {
    background: linear-gradient(155deg, rgba(12, 16, 26, 0.92) 0%, rgba(6, 8, 15, 0.95) 100%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275),
                box-shadow 0.4s ease,
                border-color 0.4s ease;
    position: relative;
    backdrop-filter: blur(14px);
}

.proyecto-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 28px 45px rgba(15, 40, 90, 0.35);
    border-color: rgba(255, 255, 255, 0.18);
}

.proyecto-img {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.proyecto-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.proyecto-card:hover .proyecto-img img {
    transform: scale(1.05);
}

.proyecto-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.8) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2.5rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.proyecto-overlay h3 {
    color: #fff;
    font-size: 2rem;
    margin-bottom: 1rem;
    transform: translateY(20px);
    transition: transform 0.4s ease;
}

.proyecto-overlay p {
    color: #e0e0e0;
    font-size: 1.4rem;
    margin-bottom: 2rem;
    transform: translateY(20px);
    transition: transform 0.4s ease 0.1s;
}

.proyecto-card:hover .proyecto-overlay h3,
.proyecto-card:hover .proyecto-overlay p {
    transform: translateY(0);
}

.ver-mas {
    display: inline-block;
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.4rem;
    padding: 0.8rem 2rem;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    transition: all 0.3s ease;
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.4s ease 0.2s;
}

.proyecto-card:hover .ver-mas {
    transform: translateY(0);
    opacity: 1;
}

.ver-mas:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
}

.proyecto-info {
    padding: 2rem;
    text-align: left;
}

.proyecto-info h4 {
    color: #fff;
    font-size: 1.8rem;
    margin-bottom: 1.2rem;
    font-weight: 600;
}

.proyecto-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.proyecto-tech span {
    display: inline-block;
    background: rgba(24, 96, 255, 0.15);
    color: #4d8bff;
    font-size: 1.2rem;
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    font-weight: 500;
}

/* CTA Section */
.portafolio-cta {
    text-align: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, rgba(24, 96, 255, 0.08), rgba(0, 242, 254, 0.05));
    border-radius: 16px;
    max-width: 900px;
    margin: 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.portafolio-cta p {
    color: #e0e0e0;
    font-size: 2.2rem;
    margin-bottom: 2.5rem;
    font-weight: 500;
}

.btn-primario {
    display: inline-block;
    background: linear-gradient(135deg, #1860ff, #00f2fe);
    color: white;
    text-decoration: none;
    padding: 1.2rem 3.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.6rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
    box-shadow: 0 8px 25px rgba(24, 96, 255, 0.3);
}

.btn-primario:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(24, 96, 255, 0.4);
}

.btn-primario:active {
    transform: translateY(-1px);
}

/* Responsive */
@media (max-width: 1024px) {
    .portafolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .portafolio-section {
        padding: 6rem 1.5rem;
    }
    
    .section-title {
        font-size: 3rem;
    }
    
    .section-subtitle {
        font-size: 1.5rem;
        max-width: 100%;
    }
    
    .portafolio-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .portafolio-cta p {
        font-size: 1.8rem;
    }
    
    .btn-primario {
        font-size: 1.4rem;
        padding: 1rem 2.5rem;
    }
}

/* Animaciones */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.proyecto-card {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

.proyecto-card:nth-child(1) { animation-delay: 0.1s; }
.proyecto-card:nth-child(2) { animation-delay: 0.2s; }
.proyecto-card:nth-child(3) { animation-delay: 0.3s; }