/* ===== Hero Portfolio ===== */
.hero-portfolio {
    min-height: 40vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(0, 255, 136, 0.05));
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.hero-portfolio::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(0, 212, 255, 0.1), transparent 70%);
    pointer-events: none;
}

.page-title {
    font-size: 3rem;
    font-weight: 800;
    text-align: center;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.page-subtitle {
    font-size: 1.2rem;
    text-align: center;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

/* ===== Filtro ===== */
.filtro-section {
    padding: 2rem;
    background-color: var(--secondary-dark);
    border-bottom: 1px solid var(--border-color);
}

.filtro-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background-color: var(--tertiary-dark);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    font-size: 1rem;
}

.filter-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    color: var(--primary-dark);
    border-color: transparent;
}

/* ===== Proyectos Grid ===== */
.proyectos-section {
    padding: 4rem 2rem;
}

.proyectos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.proyecto-card {
    background-color: var(--tertiary-dark);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.proyecto-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.2);
}

.proyecto-card.hidden {
    display: none;
}

.proyecto-image {
    position: relative;
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(0, 255, 136, 0.1));
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

.proyecto-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.proyecto-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 212, 255, 0.15);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.view-btn {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
    color: var(--primary-dark);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
}

.view-btn:hover {
    transform: scale(1.05);
}

.proyecto-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    flex-grow: 1;
}

.proyecto-info h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
}

.proyecto-category {
    font-size: 0.9rem;
    color: var(--accent-color);
    font-weight: 600;
    margin: 0;
}

.proyecto-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
}

.proyecto-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.tech-tag {
    padding: 0.35rem 0.8rem;
    background-color: rgba(0, 212, 255, 0.1);
    color: var(--accent-color);
    border-radius: 5px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(0, 212, 255, 0.3);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .page-title {
        font-size: 2rem;
    }

    .page-subtitle {
        font-size: 1rem;
    }

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

    .filtro-buttons {
        gap: 0.5rem;
    }

    .filter-btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
}